HMG (high mobility group) box;

                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*..
gi 751368126    1 MNERREQLRAKRPEVPFPEITRMLGNEWSKLPPEEKQRYLDEADRDKERYMKELEQY 57
Cdd:pfam00505  12 SKEQRAKLKAENPGLKNAEISKILGEKWKALSEEEKKPYEEKAEKEKARYEKEHPEY 68

Chromatin-associated proteins containing the HMG domain [Chromatin structure and dynamics];

                         10        20        30        40        50        60
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*.
gi 751368126   2 NERREQLRAKRPEVPFPEITRMLGNEWSKLPPEEKQRYLDEADRDKERYMKELEQYQKTEAYKVFS 67
Cdd:COG5648   83 AENRDEIRKENPKLTFGEVGKLLSEKWKELTDEEKEPYYKEANSDRERYQREKEEYNKKLPNKAPI 148

high mobility group (HMG)-box found in the high mobility group protein 20 (HMG20) subfamily; The HMG20 subfamily includes HMG20A and HMG20B. HMG20A, also called HMG box-containing protein 20A, HMG domain-containing protein 1, HMG domain-containing protein HMGX1, HMGXB1, or iBRAF, is a chromatin-associated protein involved in neuronal differentiation and maturation. It is required for SNAI1-mediated epithelial to mesenchymal transition. HMG20A acts as an inhibitor of HMG20B. HMG20B, also called SWI/SNF-related matrix-associated actin-dependent regulator of chromatin subfamily E member 1-related, SMARCE1-related protein (SMARCE1R), BRCA2-associated factor 35 (BRAF35), HMG box-containing protein 20B, HMG domain-containing protein 2, HMG domain-containing protein HMGX2, Sox-like transcriptional factor, or structural DNA-binding protein BRAF35, is a DNA binding factor that acts as a repressor of erythroid differentiation. It is required for correct progression through the G2 phase of the cell cycle and entry into mitosis. It is also required for RCOR1/CoREST mediated repression of neuronal specific gene promoters. HMG20B is a core subunit of the Lys-specific demethylase 1/REST co-repressor 1 (LSD1-CoREST) histone demethylase complex. Both HMG20A and HMG20B contain one HMG-box.

                         10        20        30        40        50        60
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....
gi 751368126   1 MNERREQLRAKRPEVPFPEITRMLGNEWSKLPPEEKQRYLDEADRDKERYMKELEQYQKTEAYKVFSRK 69
Cdd:cd21980   13 LNERREKLRAENPDLSFPEITKILGAEWSSLSAEEKQKYLDEAEKDKERYVKELEAYQQTEAYKAFLKK 81

high mobility group (HMG)-box domain superfamily; The High Mobility Group (HMG)-box is found in a variety of eukaryotic chromosomal proteins and transcription factors. HMGs bind to the minor groove of DNA and have been classified by DNA binding preferences. Two phylogenetically distinct groups of Class I proteins bind DNA in a sequence specific fashion and contain a single HMG box. One group (SOX-TCF) includes transcription factors, TCF-1, -3, -4, and also SRY and LEF-1, which bind four-way DNA junctions and duplex DNA targets. The second group (MATA) includes fungal mating type gene products MC, MATA1 and Ste11. Class II and III proteins (HMGB-UBF) bind DNA in a non-sequence specific fashion and contain two or more tandem HMG boxes. Class II members include non-histone chromosomal proteins, HMG1 and HMG2, which bind to bent or distorted DNA such as four-way DNA junctions, synthetic DNA cruciforms, kinked cisplatin-modified DNA, DNA bulges, cross-overs in supercoiled DNA, and can cause looping of linear DNA. Class III members include nucleolar and mitochondrial transcription factors, UBF and mtTF1, which bind four-way DNA junctions.

                         10        20        30        40        50
                 ....*....|....*....|....*....|....*....|....*....|
gi 751368126   1 MNERREQLRAKRPEVPFPEITRMLGNEWSKLPPEEKQRYLDEADRDKERY 50
Cdd:cd00084   10 SKEKRPKLKKENPDLSFTEISKLLGERWKELSEEEKQPYEEKAKEDKERY 59

high mobility group (HMG)-box found in Saccharomyces cerevisiae non-histone chromosomal proteins NHP6A, NHP6B and similar proteins; This subfamily includes Saccharomyces cerevisiae high-mobility-group proteins NHP6A and its closely related paralog NHP6B. NHP6A and NHP6B seem to be functionally redundant. They are DNA-binding proteins that induce severe bending of DNA and are required for DNA-binding by the FACT complex, a general chromatin factor that acts to reorganize nucleosomes. They augment the fidelity of transcription by RNA polymerase III independently of any role in the FACT complex. They may also play essential roles in transcriptional initiation fidelity of some but not all tRNA genes.

                         10        20        30        40        50
                 ....*....|....*....|....*....|....*....|....*....|....*.
gi 751368126   2 NERREQLRAKRPEVPFPEITRMLGNEWSKLPPEEKQRYLDEADRDKERYMKELEQY 57
Cdd:cd01390   26 QDNREKVKEENPDATFGEVGKLLGEKWKELSEEEKAPYEEKAAKDKKRYEEEKAAY 81

high mobility group (HMG)-box found in structure-specific recognition protein 1 (SSRP1) and similar proteins; SSRP1, also called FACT complex subunit SSRP1, chromatin-specific transcription elongation factor 80 kDa subunit, facilitates chromatin transcription complex 80 kDa subunit (FACT 80 kDa subunit or FACTp80), facilitates chromatin transcription complex subunit SSRP1, recombination signal sequence recognition protein 1, or T160, is a factor that facilitates transcript elongation through nucleosomes. It is a component of the FACT complex, a general chromatin factor that acts to reorganize nucleosomes. The FACT complex is involved in multiple processes that require DNA as a template such as mRNA elongation, DNA replication, and DNA repair.

                         10        20        30        40        50
                 ....*....|....*....|....*....|....*....|....*....|....*...
gi 751368126   1 MNERREQLRAKRPEVPFPEITRMLGNEWSKLPPEEKQRYLDEADRDKERYMKELEQYQ 58
Cdd:cd21994   10 LNENREKIKKENPGISVTEISKKAGEIWKELDEEDKEKWEQKAEKAKERYDKAMKEYK 67

high mobility group (HMG)-box found in protein polybromo-1 (PB1) and similar proteins; PB1, also called BRG1-associated factor 180 (BAF180), or polybromo-1D, is a subunit of the PBAF (polybromo/Brg1-associated factor) chromatin-remodeling complex required for kinetochore localization during mitosis and the transcription of estrogen-responsive genes. It is involved in transcriptional activation and repression of select genes by chromatin remodeling. It acts as a negative regulator of cell proliferation.

                         10        20        30        40
                 ....*....|....*....|....*....|....*....|....*...
gi 751368126   3 ERREQLRAKRPEVPFPEITRMLGNEWSKLPPEEKQRYLDEADRDKERY 50
Cdd:cd21984   13 EVRKSIKAENPDYSFGEISRLVGTEWRNLPAEKKAEYEERAQKQAEQN 60

high mobility group (HMG)-box found in Arabidopsis thaliana high mobility group B protein 9 (HMGB9) and similar proteins; This subfamily contains a group of Arabidopsis thaliana HMGB family proteins, including HMGB9, 10, 11, and 15. They are DNA-binding proteins containing both HMG-box and AT-rich interaction domains. They bind preferentially to DNA with A/T-rich content. HMGB9 is required for karyogamy during female gametophyte development, when the two polar nuclei fuse to form the diploid central cell nucleus. Members of this subfamily have only one HMG-box domain.

                         10        20        30
                 ....*....|....*....|....*....|....*....
gi 751368126  19 EITRMLGNEWSKLPPEEKQRYLDEADRDKERYMKELEQY 57
Cdd:cd22009   29 EISKMIGEMWSNLTEEEKEVYQDKGVEDKERYKREMEEY 67

first high mobility group (HMG)-box found in Saccharomyces cerevisiae intrastrand cross-link recognition protein (Ixr1) and similar proteins; Ixr1, also called structure-specific recognition protein (SSRP), is a homolog of the yeast mitochondrial regulator ABF2. It binds to platinated DNA and confers sensitivity to the anticancer drug cisplatin. Ixr1 contains two HMG-box domains. This model corresponds to the first one.

                         10        20        30        40        50        60
                 ....*....|....*....|....*....|....*....|....*....|....*....|
gi 751368126   1 MNERREQLRAKRPEVPFPEITRMLGNEWSKLPPEEKQRYLDEADRDKERYMKELEQYQKT 60
Cdd:cd22011   13 QEIRKNLKSQGSPEEKVPELSKRAAEQWRSLTLAEKQPYYDEVEVLKKQYDVEKEEYEKE 72

high mobility group (HMG)-box found in Arabidopsis thaliana FACT complex subunit SSRP1 and similar proteins; SSRP1, also called facilitates chromatin transcription complex subunit SSRP1, high mobility group B protein 8, nucleosome/chromatin assembly factor group D 08 (or D 8), protein NUCLEAR FUSION DEFECTIVE 8, or recombination signal sequence recognition protein 1, is a component of the FACT complex, a general chromatin factor that acts to reorganize nucleosomes. The FACT complex is involved in multiple processes that require DNA as a template such as mRNA elongation, DNA replication, and DNA repair. SSRP1 may bind specifically to double-stranded DNA. It is required for karyogamy during female gametophyte development, when the two polar nuclei fuse to form the diploid central cell nucleus. SSRP1 contains only one HMG-box domain.

                         10        20        30        40        50
                 ....*....|....*....|....*....|....*....|....*....|....*...
gi 751368126   3 ERREQLRAKRPEVPFPEITRMLGNEWSKLPPEEKQRYLDEADRDKERYMKELEQYQKT 60
Cdd:cd22013   22 MERENLKKEKPGISFGEVGKVLGEKWKNMSADDKAPYEAKAQVDKERYKKEMSGYKNG 79

high mobility group (HMG)-box found in HMG box-containing protein 2 (HBP2) and similar proteins; HBP2, also called HMG box transcription factor BBX, or Bobby sox homolog, is a transcription factor that is necessary for cell cycle progression from the G1 to S phase.

                         10        20        30        40        50
                 ....*....|....*....|....*....|....*....|....*....|....
gi 751368126   5 REQLRAKRPEVPFPEITRMLGNEWSKLPPEEKQRYLDEADRDKERYMKELEQYQ 58
Cdd:cd21989   15 RSLVRERHPRLDNRGITKILGDWWAVLDPDEKQKYTDLAKQYKEAFMKANPNFK 68

high mobility group (HMG)-box found in Saccharomyces cerevisiae repressor ROX1 and similar proteins; This family includes class I members of the HMG-box superfamily of DNA-binding proteins, including Saccharomyces cerevisiae repressor ROX1, Schizosaccharomyces pombe mating-type M-specific polypeptide Mc (mat-Mc), Schizosaccharomyces pombe transcription factor ste11, Podospora anserina MAT+ sexual cell fertilization-promoting factor (FPR1), Podospora anserina sporulation minus regulator 2 (SMR2) and Candida albicans repressor of filamentous growth 1 (RFG1). These proteins contain a single HMG box, and bind the minor groove of DNA in a highly sequence-specific manner. ROX1, also called heme-dependent repression factor, or hypoxic function repressor, is a transcription factor that represses the expression of HEM13, COX5B, ANB1, CYC7 or AAC3. It binds to the DNA sequence 5'-RRRTAACAAGAG-3'. mat-Mc belongs to the mating type protein family, which contains sequence specific DNA-binding proteins that act as master switches in yeast differentiation by controlling gene expression in a cell type-specific fashion. mat-Mc is a positive regulator of MFM genes and is required for conjugation and efficient meiosis. Its HMG box recognizes the DNA sequence 5'-AACAAAG-3'. Ste11 is a key transcription factor for sexual development. It activates the transcription of the matp, matm, mei2, mfm, ste6 and rgs1 genes. It binds specifically to a DNA fragment carrying a 10-base motif 5'-TTCTTTGTTY-3'. FPR1 controls fertilization, probably by determining the mating type. SMR2 is a transcription factor that is required for post-fertilization events. It is required for the developmental events that occur in the female organ after fertilization. RFG1 is a transcription regulator that functions in both the positive and negative regulation of filamentous growth, depending upon environmental conditions.

                         10        20        30        40        50
                 ....*....|....*....|....*....|....*....|....*....|..
gi 751368126   2 NERREQLRAKRPEVPFPEITRMLGNEWSKLPPEEKQRYLDEADRDKERYMKE 53
Cdd:cd01389   13 KEKHKQLRAQNPGLTNSEISKIIGKMWKNLSEEEKEPYKELAEEEKEEHKLK 64

fourth high mobility group (HMG)-box found in upstream-binding factor 1 (UBF1) and similar proteins; UBF1, also called UBTF, nucleolar transcription factor 1, or auto-antigen NOR-90, is a nucleolar transcription factor that recognizes the ribosomal RNA gene promoter and activates transcription mediated by RNA polymerase I through cooperative interactions with the transcription factor SL1/TIF-IB complex. It binds specifically to the upstream control element. UBF1 contains six HMG-box domains. This model corresponds to the fourth one.

                         10        20        30        40        50
                 ....*....|....*....|....*....|....*....|....*....|...
gi 751368126   1 MNERREQLRAKRPEVPFPEITRMLGNEWSKLPPEEKQRYLDEADRDKERYMKE 53
Cdd:cd22001   14 SKEKRSKLKKKHPELSEQELTRLLAKKYNELPDKKKAKYKKKEALAKAEYEKK 66

second high mobility group (HMG)-box found in the high mobility group protein B (HMGB) family; HMGB proteins are chromatin-associated nuclear proteins that act as architectural factors in nucleoprotein structures, which regulate DNA-dependent processes including transcription. In mammals, four family members are present: HMGB1, HMGB2, HMGB3 and HMGB4. They regulate the expression of a wide range of genes through architectural remodeling of the chromatin structure. HMGB1, also called high mobility group protein 1 (HMG-1), is a prototypical alarmin or damage-associated molecular pattern (DAMP) molecule when released from cells. It plays important roles in the regulation of a wide range of processes, including transcription, replication, DNA repair, and nucleosome formation, in the nucleus. It also plays multiple roles in regulating inflammation and responses to cell and tissue stress. HMGB2, also called high mobility group protein 2 (HMG-2), has been implicated in numerous cellular processes, including proliferation, differentiation, apoptosis, and tumor growth. It acts as a chromatin-associated nonhistone protein involved in transcriptional regulation and nucleic-acid-mediated innate immune responses in mammalian. It binds DNA to stabilize nucleosomes and promote transcription. HMGB3, also called high mobility group protein 2a (HMG-2a), or high mobility group protein 4 (HMG-4), is an X-linked member of HMGB family and functions as a universal sentinel for nucleic acid-mediated innate immune responses. HMGB3 has been implicated in the regulation of cellular proliferation and differentiation, as well as inflammatory response. HMGB4 is expressed by neuronal cells and affects the expression of genes involved in neural differentiation. It is a factor that regulates chromatin and expression of neuronal differentiation markers. The family also includes high mobility group protein B1 pseudogene 1 (HMGB1P1) and nuclear auto-antigen Sp-100. HMGB1P1, also called putative high mobility group protein B1-like 1 (HMGB1L1), or putative high mobility group protein 1-like 1 (HMG-1L1), is an HMG-box containing protein that binds preferentially single-stranded DNA and unwinds double-stranded DNA. Sp-100, also called nuclear dot-associated Sp100 protein, or speckled 100 kDa. It is a tumor suppressor that is a major constituent of the promyelocytic leukemia (PML) bodies, a subnuclear organelle involved in many physiological processes including cell growth, differentiation and apoptosis. Through the regulation of ETS1, Sp-100 may play a role in angiogenesis, controlling endothelial cell motility and invasion. It may also play roles in the regulation of telomeres lengthening, TP53-mediated transcription, FAS-mediated apoptosis, etc. In addition, the family includes Drosophila melanogaster high mobility group protein DSP1 (dDSP1) and similar proteins. dDSP1, also called protein dorsal switch 1, is a Drosophila HMG1 protein that binds preferentially single-stranded DNA and unwinds double-stranded DNA. It converts Dorsal and nuclear factor (NF)-kappa B from transcriptional activators to repressors. Members of the HMGB family contain two HMG-box domains. This model corresponds to the second one.

                         10        20        30        40        50
                 ....*....|....*....|....*....|....*....|....*....|....*
gi 751368126   3 ERREQLRAKRPEVPFPEITRMLGNEWSKLPPEEKQRYLDEADRDKERYMKELEQY 57
Cdd:cd21979   16 EHRPKIKGEHPGLSIGDVAKKLGEMWNNTSAKDKQPYEKKAAKLKEKYEKDIAAY 70

first high mobility group (HMG)-box found in Saccharomyces cerevisiae mitochondrial ARS-binding factor 2 (ABF2) and similar proteins; ABF2 is a close relative of the nuclear, chromosomal high-mobility group protein HMG1 in yeast mitochondria. It specifically binds to the autonomously replicating sequence 1 (ARS1). It might play a positive role in gene expression and replication. ABF2 contains two HMG-box domains. This model corresponds to the first one.

                         10        20        30        40        50
                 ....*....|....*....|....*....|....*....|....*....|....*.
gi 751368126   2 NERREQLRAKRPEVPFPEITRMLGNEWSKLPPEEKQRYLDEADRDKERYMKELEQY 57
Cdd:cd22010   13 QEHRSDFVKENPDAKMTEISKIGGDKWKNLSADDKKKYEDDFQRELSEYQKAKAEF 68

second high mobility group (HMG)-box found in Saccharomyces cerevisiae mitochondrial ARS-binding factor 2 (ABF2), intrastrand cross-link recognition protein (Ixr1) and similar proteins; ABF2 is a close relative of the nuclear, chromosomal high-mobility group protein HMG1 in yeast mitochondria. It specifically binds to the autonomously replicating sequence 1 (ARS1). It might play a positive role in gene expression and replication. Ixr1, also called structure-specific recognition protein (SSRP), is a homolog of the yeast mitochondrial regulator ABF2. It binds to platinated DNA and confers sensitivity to the anticancer drug cisplatin. Both ABF2 and Ixr1 contain two HMG-box domains. This model corresponds to the second one.

                         10        20        30        40        50
                 ....*....|....*....|....*....|....*....|....*....|....*....
gi 751368126   1 MNERREQLRAKRPEVPFPEITRMLGNEWSKLPPEEKQRYldeadrdKERYMKELEQYQK 59
Cdd:cd22012   13 AKEVRPKLKEENPNEKYTDITKLISEKWRSLDESEKEPY-------QEEYEKALEEYEE 64

high mobility group (HMG)-box found in Saccharomyces cerevisiae high mobility group protein 1 (HMO1) and similar proteins; HMO1, also called high spontaneous mutagenesis protein 2 (HSM2), is a DNA-binding protein that is probably part of the rDNA transcription apparatus. It acts synergetically with the RPA49 subunit of RNA polymerase I during rDNA transcription. It may participate in mutagenesis control.

                         10        20        30        40        50        60
                 ....*....|....*....|....*....|....*....|....*....|....*....|
gi 751368126   5 REQLRAKRPEVPFPEITRMLGNEWSKLPPEEKQRYldeadrdKERYMKELEQYQKT-EAY 63
Cdd:cd22015   16 RPQLKAERPKASPTEIAEEISERWANLSDEEKQLW-------EDKYEEEMKEYQKAlEAY 68

high mobility group (HMG)-box found in sex determining region Y (SRY)-box 30 (SOX30) and similar proteins; SOX-30 is a crucial transcription factor that controls the transition from a late meiotic to a post-meiotic gene expression program and subsequent round spermatid development. It specially prevents Wnt-signaling to suppress metastasis. SOX-30 binds to the DNA sequence 5'-ACAAT-3' and shows a preference for guanine residues surrounding this core motif. SOX-30 is the only member of the group H of SRY-related high-mobility group (HMG) box (Sox) transcription factors.

                         10        20        30        40
                 ....*....|....*....|....*....|....*....|....*....
gi 751368126   5 REQLRAKRPEVPFPEITRMLGNEWSKLPPEEKQRYLDEADRDKERYMKE 53
Cdd:cd22033   17 RPALAKANPNANNADISVQLGEEWNKLTEEQKKPYYDEAQKLKEQHRKE 65

first high mobility group (HMG)-box found in the high mobility group protein B (HMGB) family; HMGB proteins are chromatin-associated nuclear proteins that act as architectural factors in nucleoprotein structures, which regulate DNA-dependent processes including transcription. In mammals, four family members are present: HMGB1, HMGB2, HMGB3 and HMGB4. They regulate the expression of a wide range of genes through architectural remodeling of the chromatin structure. HMGB1, also called high mobility group protein 1 (HMG-1), is a prototypical alarmin or damage-associated molecular pattern (DAMP) molecule when released from cells. It plays important roles in the regulation of a wide range of processes, including transcription, replication, DNA repair, and nucleosome formation, in the nucleus. It also plays multiple roles in regulating inflammation and responses to cell and tissue stress. HMGB2, also called high mobility group protein 2 (HMG-2), has been implicated in numerous cellular processes, including proliferation, differentiation, apoptosis, and tumor growth. It acts as a chromatin-associated nonhistone protein involved in transcriptional regulation and nucleic-acid-mediated innate immune responses in mammalian cells. It binds DNA to stabilize nucleosomes and promote transcription. HMGB3, also called high mobility group protein 2a (HMG-2a), or high mobility group protein 4 (HMG-4), is an X-linked member of the HMGB family that functions as a universal sentinel for nucleic acid-mediated innate immune responses. HMGB3 has been implicated in the regulation of cellular proliferation and differentiation, as well as inflammatory responses. HMGB4 is expressed by neuronal cells and affects the expression of genes involved in neural differentiation. It is a factor that regulates chromatin and expression of neuronal differentiation markers. This family also includes high mobility group protein B1 pseudogene 1 (HMGB1P1) and nuclear auto-antigen Sp-100. HMGB1P1, also called putative high mobility group protein B1-like 1 (HMGB1L1), or putative high mobility group protein 1-like 1 (HMG-1L1), is an HMG-box containing protein that binds preferentially single-stranded DNA and unwinds double-stranded DNA. Sp-100, also called nuclear dot-associated Sp100 protein, or speckled 100 kDa, is a tumor suppressor that is a major constituent of promyelocytic leukemia (PML) bodies, a subnuclear organelle involved in many physiological processes including cell growth, differentiation and apoptosis. Through the regulation of ETS1, Sp-100 may play a role in angiogenesis, controlling endothelial cell motility and invasion. It may also play roles in the regulation of telomere lengthening, TP53-mediated transcription, FAS-mediated apoptosis, etc. In addition, the family includes Drosophila melanogaster high mobility group protein DSP1 (dDSP1) and similar proteins. dDSP1, also called protein dorsal switch 1, binds preferentially to single-stranded DNA and unwinds double-stranded DNA. It converts Dorsal and nuclear factor (NF)-kappa B from transcriptional activators to repressors. Members of the HMGB family contain two HMG-box domains. This model corresponds to the first one.

                         10        20        30        40        50
                 ....*....|....*....|....*....|....*....|....*....|..
gi 751368126   5 REQLRAKRPEVP--FPEITRMLGNEWSKLPPEEKQRYLDEADRDKERYMKEL 54
Cdd:cd21978   17 REEHKKKHPNESvnFSEFSKKCSERWKTMSAKEKKKFEDMAKKDKARYEREM 68

high mobility group (HMG)-box found in group B SRY-related high-mobility group (HMG) box (Sox) transcription factors; SoxB transcription factors play critical roles in the regulation of neurogenesis. They can be divided into two main subgroups, SoxB1 (Sox-1/Sox-2/Sox-3) and SoxB2 (SOX-14/SOX-21). SoxB1 proteins suppress neurogenesis by maintaining neural cells in an undifferentiated state. SoxB2 proteins may have the opposite activity and promote neuronal differentiation. SOX-1 is involved in the regulation of embryonic development and cell fate determination. It also acts as a tumor suppressor that plays an anti-tumorigenicity role in different cells and its expression is inhibited in a variety of cancers. SOX-2 plays an important role in various phases of embryonic development, including cell fate and differentiation. Its overexpression and gene amplification may be associated with tumor aggression and metastasis in various cancer types, including breast, prostate, lung, ovarian and colon cancer. SOX-3 is required during the formation of the hypothalamic-pituitary axis. It plays a role in both normal neural development and carcinogenesis. SOX-14, also called SOX-28, acts as a negative regulator of transcription. It is mainly involved in the regulation of neural development. It can also promote proliferation and invasion capacity of cervical cancer cells by activating the Wnt/beta-catenin pathway. SOX-21, also called SOX-A, or SOX-25, promotes the progression of vertebrate neurogenesis.

                         10        20        30        40        50
                 ....*....|....*....|....*....|....*....|....*....|....*
gi 751368126   4 RREQLRAKRPEVPFPEITRMLGNEWSKLPPEEKQRYLDEADRDKERYMKELEQYQ 58
Cdd:cd01388   17 QRRKMAQENPKMHNSEISKRLGAEWKLLSEAEKRPFIDEAKRLRALHMKEHPDYK 71

first high mobility group (HMG)-box found in upstream-binding factor 1 (UBF1) and similar proteins; UBF1, also called UBTF, nucleolar transcription factor 1, or auto-antigen NOR-90, is a nucleolar transcription factor that recognizes the ribosomal RNA gene promoter and activates transcription mediated by RNA polymerase I through cooperative interactions with the transcription factor SL1/TIF-IB complex. It binds specifically to the upstream control element. UBF1 contains six HMG-box domains. This model corresponds to the first one. This model also includes the first HMG-box domain of upstream-binding factor 1-like protein 1 (UBTFL1), which contains two HMG-box domains.

                         10        20        30        40        50
                 ....*....|....*....|....*....|....*....|....*....|....*..
gi 751368126   3 ERREQLRAKRPEVPFPEITRMLGNEWSKLPPEEKQRYLDEADRDKERYMKELEQYQK 59
Cdd:cd21998   17 EKRAKYAKKHPEMSNLELTKILSKKYKELPEKKKQKYIQDYEKEKEEYEQKMARFRE 73

sixth high mobility group (HMG)-box found in upstream-binding factor 1 (UBF1) and similar proteins; UBF1, also called UBTF, nucleolar transcription factor 1, or auto-antigen NOR-90, is a nucleolar transcription factor that recognizes the ribosomal RNA gene promoter and activates transcription mediated by RNA polymerase I through cooperative interactions with the transcription factor SL1/TIF-IB complex. It binds specifically to the upstream control element. UBF1 contains six HMG-box domains. This model corresponds to the sixth one. This model also includes the second HMG-box domain of upstream-binding factor 1-like protein 1 (UBTFL1), which contains two HMG-box domains.

                         10        20        30        40
                 ....*....|....*....|....*....|....*....|....*...
gi 751368126  15 VPFPEITRM--LGNEWSKLPPEEKQRYLDEADRDKERYMKELEQYQKT 60
Cdd:cd22003   25 VHLSLKERMveIAKRWKRLSESEKDKYKKKAEELQKQYKKKLDKYLKS 72

high mobility group (HMG)-box found in group C SRY-related high-mobility group (HMG) box (Sox) transcription factors; SoxC transcription factors includes three members: SOX4, SOX11 and SOX12. They play key roles, often in redundancy, in multiple developmental pathways, including neurogenesis and skeletogenesis. SOX-4 is a transcriptional activator that promotes neuronal differentiation both in the adult and embryonic neural progenitors. It binds with high affinity to the T-cell enhancer motif 5'-AACAAAG-3' motif. SOX-4 is abnormally expressed in various cancers. SOX-11 is a neural transcriptional factor involved in precursor survival, neuronal fate determination, migration and morphogenesis. SOX-12, also called SOX-22, is a transcription factor essential for embryonic development and cell fate determination. It binds to the sequence 5'-AACAAT-3'.

                         10        20        30        40        50
                 ....*....|....*....|....*....|....*....|....*....|....*.
gi 751368126   3 ERReQLRAKRPEVPFPEITRMLGNEWSKLPPEEKQRYLDEADRDKERYMKELEQYQ 58
Cdd:cd22029   16 ERR-KIMEQQPDMHNAEISKRLGKRWKLLSDSEKIPFIEEAERLRLLHMQEYPDYK 70

high mobility group (HMG)-box found in group E SRY-related high-mobility group (HMG) box (Sox) transcription factors; SoxE transcription factors includes three members: Sox8, Sox9, and Sox10. They function as important transcriptional regulators of neural differentiation and nervous system development. They regulate mammalian development directing sex determination, gliogenesis, pancreas specification and neural crest development. SOX-8 is specifically expressed by M cells in the intestinal epithelium. It acts as a transcription factor necessary for the maintenance of spermatogenesis. It may play a role in central nervous system, limb and facial development. SOX-9 is involved in cell differentiation, sex determination, and tumorigenesis. It plays a role in chondrocyte differentiation and skeletal development. SOX-10 plays a central role in the development of melanocytes and glial cells from neural crest precursors.

                         10        20        30        40        50
                 ....*....|....*....|....*....|....*....|....*....|....
gi 751368126   5 REQLRAKRPEVPFPEITRMLGNEWSKLPPEEKQRYLDEADRDKERYMKELEQYQ 58
Cdd:cd22031   17 RRKLADQYPHLHNAELSKTLGKLWRLLSESEKRPFIEEAERLRVQHKKDHPDYK 70