RBB1NT (NUC162) domain; This domain is found N terminal to the ARID/BRIGHT domain in DNA-binding proteins of the Retinoblastoma-binding protein 1 family.

                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 22035679    170 DELLGKVVCVDyiSLDKKKAlWFPALVVCPDCSDEIAVKKDNILVRSFKDGKFTSVPRKDVHEITSDTAPKPDAVLKQAF 249
Cdd:pfam08169    3 DELLGKVVCVE--STDKKDN-WYPALVVSPSCQDDVTVKKDQCLVRSFKDGKFYTVPRKDVREFTRESGPKPESSLKPAL 79

                           90
                   ....*....|....
gi 22035679    250 EQALEFHKSRTIPA 263
Cdd:pfam08169   80 DAALEFLDTGEVPP 93

second Tudor domain found in AT-rich interactive domain-containing protein 4B (ARID4B) and similar proteins; ARID4B, also called 180 kDa Sin3-associated polypeptide (p180), breast cancer-associated antigen BRCAA1, histone deacetylase complex subunit SAP180, or retinoblastoma-binding protein 1-like 1 (RBP1L1 or RBBP1L1), is a leukemia and tumor suppressor involved in epigenetic regulation in leukemia and Prader-Willi/Angelman syndromes. It associates with the mSIN3A histone deacetylase (HDAC) chromatin remodeling complex through its interaction with the breast cancer associated tumor suppressor ING1, the breast cancer metastasis suppressor BRMS1, and ARID4A ( also known as RBP1). ARID4B plays a causative role in metastatic progression of breast cancer. It may also be associated with regulating the cell cycle. ARID4B contains tandem Tudor domains, a PWWP domain (also known as HATH domain or RBB1NT domain), an AT-rich DNA-interacting domain (ARID, also known as BRIGHT), a chromobarrel domain, and a C-terminal R2 domain. The model corresponds to the second Tudor domain. The Tudor domain binds to proteins with dimethylated arginine or lysine residues, and may also bind methylated histone tails to facilitate protein-protein interactions.

                         10        20        30        40        50
                 ....*....|....*....|....*....|....*....|....*....|....*..
gi 22035679   62 VGAIVEVKNLDGAYQEAVINKLTDASWYTVVFDDGDEKTLRRSSLCLKGERHFAESE 118
Cdd:cd20462    1 VGAVVEVKNPDGTYQEAVINKLTDASWYTVVFDDGDEKTLRRSSLCLKGERHFAESE 57

RBB1NT (NUC162) domain; This domain is found N terminal to the ARID/BRIGHT domain in DNA-binding proteins of the Retinoblastoma-binding protein 1 family.

                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 22035679    170 DELLGKVVCVDyiSLDKKKAlWFPALVVCPDCSDEIAVKKDNILVRSFKDGKFTSVPRKDVHEITSDTAPKPDAVLKQAF 249
Cdd:pfam08169    3 DELLGKVVCVE--STDKKDN-WYPALVVSPSCQDDVTVKKDQCLVRSFKDGKFYTVPRKDVREFTRESGPKPESSLKPAL 79

                           90
                   ....*....|....
gi 22035679    250 EQALEFHKSRTIPA 263
Cdd:pfam08169   80 DAALEFLDTGEVPP 93

second Tudor domain found in AT-rich interactive domain-containing protein 4B (ARID4B) and similar proteins; ARID4B, also called 180 kDa Sin3-associated polypeptide (p180), breast cancer-associated antigen BRCAA1, histone deacetylase complex subunit SAP180, or retinoblastoma-binding protein 1-like 1 (RBP1L1 or RBBP1L1), is a leukemia and tumor suppressor involved in epigenetic regulation in leukemia and Prader-Willi/Angelman syndromes. It associates with the mSIN3A histone deacetylase (HDAC) chromatin remodeling complex through its interaction with the breast cancer associated tumor suppressor ING1, the breast cancer metastasis suppressor BRMS1, and ARID4A ( also known as RBP1). ARID4B plays a causative role in metastatic progression of breast cancer. It may also be associated with regulating the cell cycle. ARID4B contains tandem Tudor domains, a PWWP domain (also known as HATH domain or RBB1NT domain), an AT-rich DNA-interacting domain (ARID, also known as BRIGHT), a chromobarrel domain, and a C-terminal R2 domain. The model corresponds to the second Tudor domain. The Tudor domain binds to proteins with dimethylated arginine or lysine residues, and may also bind methylated histone tails to facilitate protein-protein interactions.

                         10        20        30        40        50
                 ....*....|....*....|....*....|....*....|....*....|....*..
gi 22035679   62 VGAIVEVKNLDGAYQEAVINKLTDASWYTVVFDDGDEKTLRRSSLCLKGERHFAESE 118
Cdd:cd20462    1 VGAVVEVKNPDGTYQEAVINKLTDASWYTVVFDDGDEKTLRRSSLCLKGERHFAESE 57

ARID/BRIGHT DNA binding domain; This domain is know as ARID for AT-Rich Interaction Domain, and also known as the BRIGHT domain.

                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 22035679    311 NFLQQLYKFMEDRGTPINKRPVLGYRNLNLFKLFRLVHKLGGFDNIESGAVWKQVYQDLGIPVLNSAAGYNVKCAYKKYL 390
Cdd:pfam01388    4 LFLKSLRKFHEKRGTPLKQIPVIGGKPVDLYKLYKAVQKLGGYDKVTEKNLWREVAEKLGFPPSAASAATQLKQIYEKYL 83

                   ....
gi 22035679    391 YGFE 394
Cdd:pfam01388   84 LPYE 87

PWWP domain found in the DNA (cytosine-5)-methyltransferase 3 (DNMT3) family; The DNMT3 family includes DNMT3A and DNMT3B, which are required for genome-wide de novo methylation and is essential for the establishment of DNA methylation patterns during development. DNMT3A, also called DNA methyltransferase HsaIIIA, DNA MTase HsaIIIA, or M.HsaIIIA, modifies DNA in a non-processive manner and also methylates non-CpG sites. It may preferentially methylate DNA linker between 2 nucleosomal cores and is inhibited by histone H1. DNMT3A is recruited to trimethylated 'Lys-36' of histone H3 (H3K36me3) sites. DNMT3B, also called DNA methyltransferase HsaIIIB, DNA MTase HsaIIIB, or M.HsaIIIB, may preferentially methylate nucleosomal DNA within the nucleosome core region. DNMT3B may function as a transcriptional co-repressor by associating with CBX4 and independently of DNA methylation. Members of this family contains a PWWP domain that is responsible for establishing DNA methylation patterns during embryogenesis and gametogenesis. In tumorigenesis, DNA methylation by DNMT3B is known to play a role in the inactivation of tumor suppressor genes. In addition, a point mutation in the PWWP domain of DNMT3B has been identified in patients with ICF (immunodeficiency, centromeric instability, and facial anomalie) syndrome , a rare autosomal recessive disorder characterized by hypomethylation of classical satellite DNA.

                         10        20        30        40        50        60        70
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*.
gi 22035679  191 WFPALVV-CPDCSDEIAvKKDNILVRSFKDGKFTSVPRKDVHEITSD-----TAPKPDAVLKQAFEQALEFHKSRT 260
Cdd:cd05835   15 WWPGIVVsHKDCGQKPP-AEGSVWVFWFGDHKVSEVPLDKILPFAEFfnkfyISKNSSKLYKKAVYEALKEAAERS 89

ARID/BRIGHT DNA binding domain of AT-rich interactive domain-containing proteins ARID4A, ARID4B and similar proteins; This subfamily contains ARID4A and its paralog ARID4B, both of which are retinoblastoma (Rb)-binding proteins that function as coactivators to enhance the androgen receptor (AR) and Rb transcriptional activity, and play important roles in the AR and Rb pathways to control male fertility. They also act as the leukemia and tumor suppressors involved in epigenetic regulation in leukemia and Prader-Willi/Angelman syndrome. Moreover, they associate with the mSIN3A histone deacetylase (HDAC) chromatin remodeling complex through the interaction with each other, as well as with the breast cancer associated tumor suppressor ING1 and the breast cancer metastasis suppressor BRMS1. Both ARID4A and ARID4B contain a Tudor domain, a PWWP domain (also known as HATH domain or RBB1NT domain), an AT-rich DNA-interacting domain (ARID, also known as BRIGHT), a chromobarrel domain, and a C-terminal R2 domain.

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 22035679  311 NFLQQLYKFMEDRGTPINKRPVLGYRNLNLFKLFRLVHKLGGFDNIESGAVWKQVYQDLGIPVLNSAAGYNVKCAYKKYL 390
Cdd:cd16868    4 NFLEQLYKFMEDRGTPINKPPVLGYKDLDLFKLYKLVQELGGMERVSQGAKWRSIYQQLGIPVLNSAASHNIKQAYKKYL 83

                 ....
gi 22035679  391 YGFE 394
Cdd:cd16868   84 YAFE 87

RBB1NT (NUC162) domain; This domain is found N terminal to the ARID/BRIGHT domain in DNA-binding proteins of the Retinoblastoma-binding protein 1 family.

                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 22035679    170 DELLGKVVCVDyiSLDKKKAlWFPALVVCPDCSDEIAVKKDNILVRSFKDGKFTSVPRKDVHEITSDTAPKPDAVLKQAF 249
Cdd:pfam08169    3 DELLGKVVCVE--STDKKDN-WYPALVVSPSCQDDVTVKKDQCLVRSFKDGKFYTVPRKDVREFTRESGPKPESSLKPAL 79

                           90
                   ....*....|....
gi 22035679    250 EQALEFHKSRTIPA 263
Cdd:pfam08169   80 DAALEFLDTGEVPP 93

second Tudor domain found in AT-rich interactive domain-containing protein 4B (ARID4B) and similar proteins; ARID4B, also called 180 kDa Sin3-associated polypeptide (p180), breast cancer-associated antigen BRCAA1, histone deacetylase complex subunit SAP180, or retinoblastoma-binding protein 1-like 1 (RBP1L1 or RBBP1L1), is a leukemia and tumor suppressor involved in epigenetic regulation in leukemia and Prader-Willi/Angelman syndromes. It associates with the mSIN3A histone deacetylase (HDAC) chromatin remodeling complex through its interaction with the breast cancer associated tumor suppressor ING1, the breast cancer metastasis suppressor BRMS1, and ARID4A ( also known as RBP1). ARID4B plays a causative role in metastatic progression of breast cancer. It may also be associated with regulating the cell cycle. ARID4B contains tandem Tudor domains, a PWWP domain (also known as HATH domain or RBB1NT domain), an AT-rich DNA-interacting domain (ARID, also known as BRIGHT), a chromobarrel domain, and a C-terminal R2 domain. The model corresponds to the second Tudor domain. The Tudor domain binds to proteins with dimethylated arginine or lysine residues, and may also bind methylated histone tails to facilitate protein-protein interactions.

                         10        20        30        40        50
                 ....*....|....*....|....*....|....*....|....*....|....*..
gi 22035679   62 VGAIVEVKNLDGAYQEAVINKLTDASWYTVVFDDGDEKTLRRSSLCLKGERHFAESE 118
Cdd:cd20462    1 VGAVVEVKNPDGTYQEAVINKLTDASWYTVVFDDGDEKTLRRSSLCLKGERHFAESE 57

BRIGHT, ARID (A/T-rich interaction domain) domain; DNA-binding domain containing a helix-turn-helix structure

                            10        20        30        40        50        60        70        80
                    ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 22035679     311 NFLQQLYKFMEDRGTPINKRPVLGYRNLNLFKLFRLVHKLGGFDNIESGAVWKQVYQDLGIPVLNSAAGYNVKCAYKKYL 390
Cdd:smart00501    5 LFLDRLYKFMEERGSPLKKIPVIGGKPLDLYRLYRLVQERGGYDQVTKDKKWKEIARELGIPDTSTSAASSLRKHYERYL 84

                    ....*...
gi 22035679     391 YGFEEYCR 398
Cdd:smart00501   85 LPYERFLR 92

second Tudor domain found in AT-rich interactive domain-containing protein 4A (ARID4A) and similar proteins; ARID4A, also called retinoblastoma-binding protein 1 (RBBP1 or RBP1), is a leukemia and tumor suppressor involved in epigenetic regulation in leukemia and Prader-Willi/Angelman syndromes. It associates with the mSIN3A histone deacetylase (HDAC) chromatin remodeling complex through its interaction with the breast cancer associated tumor suppressor ING1, the breast cancer metastasis suppressor BRMS1, and the ARID4 family homolog ARID4B ( also known as RBP1L1). ARID4A specifically interacts with retinoblastoma protein (pRb) and shows both HDAC -dependent and -independent repression activities. It also acts as a Runx2 coactivator and is involved in the regulation of osteoblastic differentiation in Runx2-osterix transcriptional cascade. ARID4A contains tandem Tudor domains, a PWWP domain (also known as HATH domain or RBB1NT domain), an AT-rich DNA-interacting domain (ARID, also known as BRIGHT), a chromobarrel domain, and a C-terminal R2 domain. The ARID and R2 domains are responsible for the repression activities. The Tudor, PWWP, and chromobarrel domains are all Royal Family domains, but only the chromobarrel domain of ARID4A is responsible for recognizing both dsDNA and methylated histone tails, particularly H4K20me3, in chromatin remodeling and epigenetic regulation. The model corresponds to the second Tudor domain. The Tudor domain binds to proteins with dimethylated arginine or lysine residues, and may also bind methylated histone tails to facilitate protein-protein interactions.

                         10        20        30        40        50        60
                 ....*....|....*....|....*....|....*....|....*....|....*....|
gi 22035679   62 VGAIVEVKNLDGAYQEAVINKLTDASWYTVVFDDGDEKTLRRSSLCLKGERHFAESETLD 121
Cdd:cd20461    1 VGAIVETRTSDGSFQEAIISKLTDASWYTVVFDDGDERTLRRTSLCLKGERHFAESETLD 60

first Tudor domain found in AT-rich interactive domain-containing protein 4A (ARID4A) and similar proteins; ARID4A, also called retinoblastoma-binding protein 1 (RBBP1 or RBP1), is a leukemia and tumor suppressor involved in epigenetic regulation in leukemia and Prader-Willi/Angelman syndromes. It associates with the mSIN3A histone deacetylase (HDAC) chromatin remodeling complex through its interaction with the breast cancer associated tumor suppressor ING1, the breast cancer metastasis suppressor BRMS1, and the ARID4 family homolog ARID4B ( also known as RBP1L1). ARID4A specifically interacts with retinoblastoma protein (pRb) and shows both HDAC -dependent and -independent repression activities. It also acts as a Runx2 coactivator and is involved in the regulation of osteoblastic differentiation in Runx2-osterix transcriptional cascade. ARID4A contains tandem Tudor domains, a PWWP domain (also known as HATH domain or RBB1NT domain), an AT-rich DNA-interacting domain (ARID, also known as BRIGHT), a chromobarrel domain, and a C-terminal R2 domain. The ARID and R2 domains are responsible for the repression activities. The Tudor, PWWP, and chromobarrel domains are all Royal Family domains, but only the chromobarrel domain of ARID4A is responsible for recognizing both dsDNA and methylated histone tails, particularly H4K20me3, in chromatin remodeling and epigenetic regulation. The model corresponds to the first Tudor domain. The Tudor domain binds to proteins with dimethylated arginine or lysine residues, and may also bind methylated histone tails to facilitate protein-protein interactions.

                         10        20        30        40        50
                 ....*....|....*....|....*....|....*....|....*....|....*..
gi 22035679    5 DEPPYLTVGTDVSAKYRGAFCEAKIKTAKRLVKVKVTFRHDSSTVEVQDDHIKGPLK 61
Cdd:cd20459    2 DEPAYLTVGTDVSAKYRGAFCEAKIKTVKRLVKVKVLLKGDNSTQLVQDDQVKGPLR 58

first Tudor domain found in AT-rich interactive domain-containing protein ARID4 family; The family contains ARID4A and its paralog ARID4B, both of which are retinoblastoma (RB)-binding proteins that function as coactivators to enhance the androgen receptor (AR) and RB transcriptional activity, and play important roles in the AR and RB pathways to control male fertility. They also act as the leukemia and tumor suppressors involved in epigenetic regulation in leukemia and Prader-Willi/Angelman syndromes. Moreover, they associate with the mSIN3A histone deacetylase (HDAC) chromatin remodeling complex through their interaction with each other, as well as with the breast cancer associated tumor suppressor ING1 and the breast cancer metastasis suppressor BRMS1. Both ARID4A and ARID4B contain tandem Tudor domains, a PWWP domain (also known as HATH domain or RBB1NT domain), an AT-rich DNA-interacting domain (ARID, also known as BRIGHT), a chromobarrel domain, and a C-terminal R2 domain. The model corresponds to the first Tudor domain. The Tudor domain binds to proteins with dimethylated arginine or lysine residues, and may also bind methylated histone tails to facilitate protein-protein interactions.

                         10        20        30        40        50
                 ....*....|....*....|....*....|....*....|....*....|...
gi 22035679    9 YLTVGTDVSAKYRGAFCEAKIKTAKRLVKVKVTFRHDSSTVEVQDDHIKGPLK 61
Cdd:cd20389    1 YLPVGTEVSAKYRGAFCEAKVKKVKKLVKCKVTFKDNGTSVVVSDDNIKGPLK 53

ARID/BRIGHT DNA binding domain found in AT-rich interactive domain-containing proteins ARID1A, ARID1B and similar proteins; This subfamily contains ARID1A and its paralog ARID1B. They are mutually exclusive components of human SWItch/Sucrose NonFermentable (SWI/SNF) chromatin remodeling protein complexes, but display different functions in development and cell-cycle control. SWI/SNF complexes containing ARID1A have an antiproliferative function, whereas the one harboring ARID1B shows a pro-proliferative function. ARID1A functions as an important tumor suppressor in various tumor types. It has been implicated in cell-cycle arrest, as well as in the interactions with p53 and BRG1/BRM and with topoisomerase II alpha. ARID1B may be considered as a potential therapeutic target for ARID1A-mutant cancers. Moreover, mutations in the ARID1B gene cause Coffin-Siris syndrome, exhibiting developmental defects, and haplo-insufficiency of ARID1B is a frequent cause of intellectual disability. Mutations in the ARID1B gene also have been found in many cancers. Both ARID1A and ARID1B contain an AT-rich DNA-interacting domain (ARID, also known as BRIGHT), which binds DNA in a non-sequence-specific manner.

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 22035679  312 FLQQLYKFMEDRGTPINKRPVLGYRNLNLFKLFRLVHKLGGFDNIESGAVWKQVYQDLGIPVlNSAAGYNVKCAYKKYLY 391
Cdd:cd16865    6 FLDRLLRFMEERGSPITNCPQISKQPLDLFRLYVTVKERGGVAEVTKNKKWKEICTELNIGA-SSSAAFTLRKNYIKYLL 84

                 ....*..
gi 22035679  392 GFEeyCR 398
Cdd:cd16865   85 AYE--CR 89

ARID/BRIGHT DNA binding domain of AT-rich interactive domain-containing protein 5A (ARID5A) and similar proteins; ARID5A, also called modulator recognition factor 1 (MRF-1), is an estrogen receptor alpha (ER alpha)-interacting protein that is expressed abundantly in cardiovascular tissues and suppresses ER alpha-induced transactivation. It also associates with thyroid receptor alpha (TR alpha) and retinoid X receptor alpha (RXR alpha) in a ligand-dependent manner, and with ER beta, androgen receptor (AR), and the retinoic acid receptor (RAR) in a ligand-independent manner. ARID5A functions as a negative regulator of RORgamma-induced Th17 cell differentiation and may be involved in the pathogenesis of rheumatoid arthritis (RA). Moreover, it is an important transcriptional partner of the transcription factor sex determining region Y (SRY)-box protein 9 (Sox9) in stimulation of chondrocyte-specific transcription. Meanwhile, ARID5A plays an important role in promotion of inflammatory processes and autoimmune diseases. It works as a unique RNA binding protein, which stabilizes interleukin-6 (IL-6) but not tumor necrosis factor-alpha (TNF-alpha) mRNA through binding to the 3' untranslated region (UTR) of IL-6 mRNA, and inhibits the destabilizing effect of regnase-1 on IL-6 mRNA. ARID5A contains an AT-rich DNA-interacting domain (ARID, also known as BRIGHT).

                         10        20        30        40        50        60        70
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....
gi 22035679  312 FLQQLYKFMEDRGTPINKRPVLGYRNLNLFKLFRLVHKLGGFDNIESGAVWKQVYQDL-GIPVLNSAAgynvKCAYKKY 389
Cdd:cd16884    5 FLVNLYKFMKERNTPIERIPHLGFKQINLWKIYKAVEKLGGYELVTARRLWKNVYDELgGSPGSTSAA----TCTRRHY 79

ARID/BRIGHT DNA binding domain of AT-rich interactive domain-containing proteins ARID3A, ARID3B, ARID3C, dead ringer (Dri) from Drosophila melanogaster, and similar proteins; The ARID3 subfamily includes AT-rich interactive domain (ARID, also known as BRIGHT)-containing proteins ARID3A, ARID3B and ARID3C, which are the most direct mammalian counterparts of the Drosophila "dead ringer" protein Dri. They consist of an acidic N-terminal region of unknown function, the central ARID matrix association (or attachment) region (MAR)-DNA binding domain, a SUMO-I conjugation (SUMO) motif, and a multifunctional homomerization/nuclear export REKLES domain in the C-terminal third of the molecule. The ARID domain in this subfamily has been described as the "extended" or e-ARID due to additional conserved sequences at both the N and C termini of the core ARID region. The REKLES domain is found only in the ARID3 subfamily. It has co-evolved with and regulates functional properties of the ARID DNA-binding domain.

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 22035679  312 FLQQLYKFMEDRGTPINKRPVLGYRNLNLFKLFRLVHKLGGFDNIESGAVWKQVYQDLGIPVLNSAAGYNVKCAYKKYLY 391
Cdd:cd16867   16 FLDDLFSFMQKRGTPVNRIPIMAKQVLDLYELYRLVVEKGGLVEVINKKIWREITKGLNLPSSITSAAFTLRTQYMKYLY 95

                 ...
gi 22035679  392 GFE 394
Cdd:cd16867   96 PYE 98

ARID/BRIGHT DNA binding domain of AT-rich interactive domain-containing protein 3B (ARID3B) and similar proteins; ARID3B, also called Bright and dead ringer protein, or Bright-Dri-like protein (Bdp), is a DNA binding protein involved in cellular immortalization, epithelial-mesenchymal transition (EMT), and tumorigenesis. Its expression is differentially regulated in normal and malignant tissues. It is required for heart development by regulating the motility and differentiation of heart progenitors. ARID3B is overexpressed in neuroblastoma and ovarian cancer. It acts as a novel target with roles in cell motility in breast cancer cells, promotes migration of mouse embryo fibroblasts (MEFs) and breast cancer cells, and induces tumor necrosis factor alpha (TNFalpha)-mediated apoptosis. ARID3B contains an AT-rich DNA-interacting domain (ARID, also known as BRIGHT), a SUMO-I conjugation (SUMO) motif and a multifunctional homomerization/nuclear export REKLES domain, which consists of two subdomains: a modestly conserved N-terminal REKLES alpha and a highly conserved (among ARID3 orthologous proteins) C-terminal REKLES beta.

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 22035679  312 FLQQLYKFMEDRGTPINKRPVLGYRNLNLFKLFRLVHKLGGFDNIESGAVWKQVYQDLGIPVLNSAAGYNVKCAYKKYLY 391
Cdd:cd16879   18 FLDDLFAFMQKRGTPINRIPIMAKQVLDLYMLYKLVTEKGGLVEVINKKIWREITKGLNLPTSITSAAFTLRTQYMKYLY 97

                         90
                 ....*....|....*....
gi 22035679  392 GF--EEYCRSANIEFQMAL 408
Cdd:cd16879   98 PYecEKKSLSSPAELQAAI 116

ARID/BRIGHT DNA binding domain of AT-rich interactive domain-containing protein 3A (ARID3A) and similar proteins; ARID3A, also called B-cell regulator of IgH transcription (Bright), dead ringer-like protein 1 (Dril1), or E2F-binding protein 1 (E2FBP1), is an ubiquitously expressed DNA-binding protein that has been implicated in embryonic patterning, cell lineage gene regulation, and cell cycle control, chromatin remodeling and transcriptional regulation. It was originally identified as a B cell-specific trans-activator of immunoglobulin heavy-chain (IgH) transcription, which increases immunoglobulin transcription in antigen-activated B cells and plays regulatory roles in hematopoiesis. It also functions as an E2F transcription regulator, inducing promyelocytic leukemia protein (PML) reduction and suppressing the formation of PML-nuclear bodies. It antagonizes the p16(INK4A)-Rb tumor suppressor machinery by regulating PML stability. ARID3A transcriptional activity can be modulated by SUMO (Small Ubiquitin-related Modifier) modification through the interaction with the SUMO-conjugating enzyme Ubc9. ARID3A also plays an important role in marginal zone B lymphocyte development and autoantibody production. Furthermore, ARID3A is a direct p53 target gene. It controls cell growth in a p53-dependent manner. ARID3A contains an AT-rich DNA-interacting domain (ARID, also known as BRIGHT), a SUMO-I conjugation (SUMO) motif and a multifunctional homomerization/nuclear export REKLES domain, which consists of two subdomains: a modestly conserved N-terminal REKLES alpha and a highly conserved (among ARID3 orthologous proteins) C-terminal REKLES beta.

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 22035679  312 FLQQLYKFMEDRGTPINKRPVLGYRNLNLFKLFRLVHKLGGFDNIESGAVWKQVYQDLGIPVLNSAAGYNVKCAYKKYLY 391
Cdd:cd16878   26 FLDDLFSFMQKRGTPVNRIPIMAKQVLDLYMLYVLVTEKGGLVEVINKKLWREITKGLNLPTSITSAAFTLRTQYMKYLY 105

                 ...
gi 22035679  392 GFE 394
Cdd:cd16878  106 PYE 108

ARID/BRIGHT DNA binding domain of JARID proteins; The JARID subfamily within the JmjC protein family includes lysine-specific demethylase KDM5A, KDM5B, KDM5C, KDM5D and a Drosophila homolog, protein little imaginal discs (Lid). KDM5A was originally identified as a retinoblastoma protein (Rb)-binding partner and its inactivation may be important for Rb to promote differentiation. It is involved in transcription through interacting with TBP, p107, nuclear receptors, Myc, Sin3/HDAC, Mad1, RBP-J, CLOCK and BMAL1. KDM5B has a restricted expression pattern in the testis, ovary, and transiently in the mammary gland of the pregnant female and has been shown to be upregulated in breast cancer, prostate cancer, and lung cancer, suggesting a potential role in tumorigenesis. Both KDM5A and KDM5B function as trimethylated histone H3 lysine 4 (H3K4me3) demethylases. KDM5C is a H3K4 trimethyl-histone demethylase that catalyzes demethylation of H3K4me3 and H3K4me2 to H3K4me1. It plays a role in neuronal survival and dendrite development. KDM5C defects are associated with X-linked mental retardation (XLMR). KDM5D is a male-specific antigen that shows a demethylase activity specific for di- and tri-methylated histone H3K4 (H3K4me3 and H3K4me2), and has a male-specific function as a histone H3K4 demethylase by recruiting a meiosis-regulatory protein, MSH5, to condensed DNA. KDM5D directly interacts with a polycomb-like protein Ring6a/MBLR, and plays a role in regulation of transcriptional initiation through H3K4 demethylation. The family also includes Drosophila melanogaster protein little imaginal discs (Lid) that functions as a JmjC-dependent trimethyl histone H3K4 (H3K4me3) demethylase, which is required for dMyc-induced cell growth. It positively regulates Hox gene expression in S2 cells. Members of this subfamily contain the catalytic JmjC domain, JmjN, the AT-rich domain interacting domain (ARID)/BRIGHT domain, a C5HC2 zinc finger, as well as two or three plant homeodomain (PHD) fingers.

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 22035679  311 NFLQQLYKFMEDRGTPInKRPVLGYRNLNLFKLFRLVHKLGGFDNIESGAVWKQVYQDLGIPvLNSAAGYNVKCAYKKYL 390
Cdd:cd16864    6 NFLDQIAKFWELQGSSL-KIPNVERKALDLFTLHKIVQEEGGFEEVTKERKWSKVARRLGYP-PGKGVGSLLRGHYERIL 83

                 ....
gi 22035679  391 YGFE 394
Cdd:cd16864   84 YPYD 87

Tudor domain; Domain of unknown function present in several RNA-binding proteins. 10 copies in the Drosophila Tudor protein. Initial proposal that the survival motor neuron gene product contain a Tudor domain are corroborated by more recent database search techniques such as PSI-BLAST (unpublished).

                            10        20        30        40        50
                    ....*....|....*....|....*....|....*....|....*....|....*..
gi 22035679      58 GPLKVGAIVEVKNLDGAYQEAVINKLTDASWYTVVFDD-GDEKTLRRSSLCLKGERH 113
Cdd:smart00333    1 PTFKVGDKVAARWEDGEWYRARIVKVDGEQLYEVFFIDyGNEEVVPPSDLRQLPEEL 57

ARID/BRIGHT DNA binding domain of AT-rich interactive domain-containing protein 1A (ARID1A) and similar proteins; ARID1A, also called B120, BRG1-associated factor 250a (BAF250A), Osa homolog 1(OSA1), SWI-like protein, SWI/SNF complex protein p270, or SWI/SNF-related, matrix-associated, actin-dependent regulator of chromatin subfamily F member 1 (SWI1), has been identified as a novel tumor suppressor in various tumor types. It interacts with BRG1 adenosine triphosphatase to form a SWItch/Sucrose NonFermentable (SWI/SNF) chromatin remodeling protein complex, which plays a critical role in transcriptional control and gene expression. ARID1A contains an AT-rich DNA-interacting domain (ARID, also known as BRIGHT), and Eld/Osa homology domains (EHD) 1 and 2 within the C-terminus. The ARID in ARID1A binds nonspecific DNA in general and plays an important role in targeting SWI/SNF to chromatin. The EHD1 may be capable of mediating an intramolecular association with EHD2, and/or an intermolecular association resulting in homo- or hetero-dimerization. The EHD2 binds Swi2/Brahma homologue Brahma-related gene 1 (BRG1, also known as Snf2b), a human homologue of yeast Swi2.

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 22035679  312 FLQQLYKFMEDRGTPINKRPVLGYRNLNLFKLFRLVHKLGGFDNIESGAVWKQVYQDLGIPVLNSAAGyNVKCAYKKYLY 391
Cdd:cd16876    6 WVDRYLAFTEEKAMGMTNLPAVGRKPLDLYRLYVSVKEIGGLTQVNKNKKWRELATNLNVGTSSSAAS-SLKKQYIQCLY 84

                 ...
gi 22035679  392 GFE 394
Cdd:cd16876   85 AFE 87

ARID/BRIGHT DNA binding domain of lysine-specific demethylase 5B (KDM5B); KDM5B, also called cancer/testis antigen 31 (CT31), histone demethylase JARID1B, Jumonji/ARID domain-containing protein 1B (JARID1B), PLU-1, or retinoblastoma-binding protein 2 homolog 1 (RBP2-H1 or RBBP2H1A), is a member of the JARID subfamily within the JmjC proteins. It has a restricted expression pattern in the testis, ovary, and transiently in the mammary gland of the pregnant female and has been shown to be upregulated in breast cancer, prostate cancer, and lung cancer, suggesting a potential role in tumorigenesis. KDM5B acts as a histone demethylase that catalyzes the removal of trimethylation of lysine 4 on histone H3 (H3K4me3), induced by polychlorinated biphenyls (PCBs). It also mediates demethylation of H3K4me2 and H3K4me1. Moreover, KDM5B functions as a negative regulator of hematopoietic stem cell (HSC) self-renewal and progenitor cell activity. KDM5B has also been shown to interact with the DNA binding transcription factors BF-1 and PAX9, as well as TIEG1/KLF10 (transforming growth factor-beta inducible earlygene-1/Kruppel-like transcription factor 10), and possibly function as a transcriptional corepressor. KDM5B contains the catalytic JmjC domain, a JmjN domain, an AT-rich DNA-interacting domain (ARID, also known as BRIGHT), a C5HC2 zinc finger, as well as three plant homeodomain (PHD) fingers.

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 22035679  311 NFLQQLYKFMEDRGTPInKRPVLGYRNLNLFKLFRLVHKLGGFDNIESGAVWKQVYQDLGIpVLNSAAGYNVKCAYKKYL 390
Cdd:cd16874    9 NFLDQIAKFWELQGCTL-KIPHVERKILDLFQLNKLVAEEGGFDLVCKERKWTKIATKMGF-APGKAVGSHIRAHYERIL 86

                 ...
gi 22035679  391 YGF 393
Cdd:cd16874   87 YPY 89

second Tudor domain found in Jumonji domain-containing protein 2 (JMJD2) family of histone demethylases; JMJD2 proteins, also called lysine-specific demethylase 4 histone demethylases (KDM4), have been implicated in various cellular processes including DNA damage response, transcription, cell cycle regulation, cellular differentiation, senescence, and carcinogenesis. They selectively catalyze the demethylation of di- and trimethylated H3K9 and H3K36. This model contains only three JMJD2 proteins, JMJD2A-C, which all contain jmjN and jmjC domains in the N-terminal region, followed by a canonical PHD domain, a noncanonical extended PHD domain, and tandem Tudor domains. The model corresponds to the second Tudor domain. The Tudor domain binds to proteins with dimethylated arginine or lysine residues, and may also bind methylated histone tails to facilitate protein-protein interactions. JMJD2D is not included in this model, since it lacks both the PHD and Tudor domains and has a different substrate specificity. JMJD2A-C are required for efficient cancer cell growth.

                         10        20        30        40        50
                 ....*....|....*....|....*....|....*....|....*....|..
gi 22035679   61 KVGAIVEVKNLDGAYQEAVINKLTDASWYTVVFDDGDEKTLRRSSLCLKGER 112
Cdd:cd20392    3 EVGDPVKVKWTDGELYDAKFVGSSIVIMYTVEFEDGSVLTLKREDVYTLDEE 54

ARID/BRIGHT DNA binding domain of Arabidopsis thaliana high mobility group B proteins HMGB9, HMGB10, HMGB11, HMGB15 and similar proteins; This subfamily includes a group of conserved plant DNA-binding proteins, including HMGB9 (or ARID-HMG1), HMGB10 (or ARID-HMG2), HMGB11, and HMGB15. They have been termed ARID-HMG proteins, due to containing two DNA-binding domains, an N-terminal AT-rich DNA-interacting domain (ARID, also known as BRIGHT), and a C-terminal high mobility group (HMG)-box domain. They are widely expressed in Arabidopsis and localize primarily to the nucleus. HMGB9/ARID-HMG1 binds specifically to A/T-rich DNA. HMGB15 is a transcription factor predominantly expressed in mature pollen grains and pollen tubes. It may work in the form of a homodimer, or interact with HMGB9, HMGB10 and HMGB11 to form heteromultimers in plant cells. HMGB15 is required for pollen tube growth in Arabidopsis and is involved in transcriptional regulation through the interaction with AGL66 and AGL104.

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 22035679  312 FLQQLYKFMEDRGTPInKRPVLGYRNLNLFKLFRLVHKLGGFDNIESGAVWKQVYQDLGIPVLNSAAGYNVKCAYKKYLY 391
Cdd:cd16872    5 FWETLRKFHESLGTKF-RIPIVGGKELDLHRLYKEVTSRGGLEKVIKDRKWKEVAAVFNFPPTITNASFVLRKYYLSLLH 83

                 ...
gi 22035679  392 GFE 394
Cdd:cd16872   84 HYE 86