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Conserved domains on  [gi|530390186|ref|XP_005251657|]
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programmed cell death 1 ligand 2 isoform X1 [Homo sapiens]

Protein Classification

Graphical summary

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List of domain hits

 Name Accession Description Interval E-value
IgV_PD-L2 cd20983
Immunoglobulin Variable (IgV) domain of Programmed death ligand 2 (PD-L2); The members here ...
 20-119 7.96e-69

Immunoglobulin Variable (IgV) domain of Programmed death ligand 2 (PD-L2); The members here are composed of the immunoglobulin variable (IgV) domain of Programmed death ligand 2 (PD-L2; also known as B7-DC or CD273). Receptor-binding domain of PD-L2 is a cell-surface ligand that competes with PD-L1 for binding to the immunosuppressive receptor programmed death-1 (PD-1). PD-1 is a member of the CD28/B7 family that plays an important role in negatively regulating immune responses upon interaction with its two ligands, PD-L1 or PD-L2. PD-L2 has a higher affinity for PD-1 but is expressed at lower levels. PD-L2 interaction with PD-1 suppresses T cell proliferation, cytokine production and cytotoxic activity. PD-L2 is expressed on tumor cells, antigen-presenting cells or APCs (such as macrophages, B cells and dendritic cells), and a variety of other immune and nonimmune cells. Tumor expression of PD-L2 may contribute to tumor evasion of immune destruction by inactivating T cells. Thus, PD-L2 is a negative predictor for prognosis among solid cancer patients.


:

Pssm-ID: 409575  Cd Length: 100  Bit Score: 208.19  E-value: 7.96e-69
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 530390186  20 LFTVTVPKELYIIEHGSNVTLECNFDTGSHVNLGAITASLQKVENDTSPHRERATLLEEQLPLGKASFHIPQVQVRDEGQ 99
Cdd:cd20983    1 LFTVTVPKELYTVDHGSNVTLECDFDTGEHVELGAIRASLQKVENDTSLHSERATLLEEQLPLGKALFHIPSVQVRDAGQ 80

                         90       100
                 ....*....|....*....|
gi 530390186 100 YQCIIIYGVAWDYKYLTLKV 119
Cdd:cd20983   81 YRCLIIYGVAWDYKYLTLKV 100
IgC1_PD-L2 cd20986
Immunoglobulin Constant 1 (IgC1) domain of Programmed death ligand 2 (PD-L2); The members here ...
 127-208 4.87e-60

Immunoglobulin Constant 1 (IgC1) domain of Programmed death ligand 2 (PD-L2); The members here are composed of the immunoglobulin Constant 1 (IgC1) domain of Programmed death ligand 2 (PD-L2; also known as B7-DC or CD273). PD-L2 is a cell-surface ligand that competes with PD-L1 for binding to the immunosuppressive receptor programmed death-1 (PD-1). PD-1 is a member of the CD28/B7 family that plays an important role in negatively regulating immune responses upon interaction with its two ligands, PD-L1 or PD-L2. PD-L2 has a higher affinity for PD-1 but is expressed at lower levels. PD-L2 interaction with PD-1 suppresses T cell proliferation, cytokine production and cytotoxic activity. PD-L2 is expressed on tumor cells, antigen-presenting cells or APCs (such as macrophages, B cells and dendritic cells), and a variety of other immune and nonimmune cells. Tumor expression of PD-L2 may contribute to tumor evasion of immune destruction by inactivating T cells. Thus, PD-L2 is a negative predictor for prognosis among solid cancer patients.


:

Pssm-ID: 409578  Cd Length: 82  Bit Score: 185.24  E-value: 4.87e-60
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 530390186 127 NTHILKVPETDEVELTCQATGYPLAEVSWPNVSVPANTSHSRTPEGLYQVTSVLRLKPPPGRNFSCVFWNTHVRELTLAS 206
Cdd:cd20986    1 DTHILEVPGTGEVQLTCQARGYPLAEVSWQNVSVPANTSHTRTPEGLYQVTSVLRLKPQPGRNFSCMFWNAHMKELTSAI 80


                 ..
gi 530390186 207 ID 208
Cdd:cd20986   81 ID 82
 
Name Accession Description Interval E-value
IgV_PD-L2 cd20983
Immunoglobulin Variable (IgV) domain of Programmed death ligand 2 (PD-L2); The members here ...
 20-119 7.96e-69

Immunoglobulin Variable (IgV) domain of Programmed death ligand 2 (PD-L2); The members here are composed of the immunoglobulin variable (IgV) domain of Programmed death ligand 2 (PD-L2; also known as B7-DC or CD273). Receptor-binding domain of PD-L2 is a cell-surface ligand that competes with PD-L1 for binding to the immunosuppressive receptor programmed death-1 (PD-1). PD-1 is a member of the CD28/B7 family that plays an important role in negatively regulating immune responses upon interaction with its two ligands, PD-L1 or PD-L2. PD-L2 has a higher affinity for PD-1 but is expressed at lower levels. PD-L2 interaction with PD-1 suppresses T cell proliferation, cytokine production and cytotoxic activity. PD-L2 is expressed on tumor cells, antigen-presenting cells or APCs (such as macrophages, B cells and dendritic cells), and a variety of other immune and nonimmune cells. Tumor expression of PD-L2 may contribute to tumor evasion of immune destruction by inactivating T cells. Thus, PD-L2 is a negative predictor for prognosis among solid cancer patients.


Pssm-ID: 409575  Cd Length: 100  Bit Score: 208.19  E-value: 7.96e-69
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 530390186  20 LFTVTVPKELYIIEHGSNVTLECNFDTGSHVNLGAITASLQKVENDTSPHRERATLLEEQLPLGKASFHIPQVQVRDEGQ 99
Cdd:cd20983    1 LFTVTVPKELYTVDHGSNVTLECDFDTGEHVELGAIRASLQKVENDTSLHSERATLLEEQLPLGKALFHIPSVQVRDAGQ 80

                         90       100
                 ....*....|....*....|
gi 530390186 100 YQCIIIYGVAWDYKYLTLKV 119
Cdd:cd20983   81 YRCLIIYGVAWDYKYLTLKV 100
IgC1_PD-L2 cd20986
Immunoglobulin Constant 1 (IgC1) domain of Programmed death ligand 2 (PD-L2); The members here ...
 127-208 4.87e-60

Immunoglobulin Constant 1 (IgC1) domain of Programmed death ligand 2 (PD-L2); The members here are composed of the immunoglobulin Constant 1 (IgC1) domain of Programmed death ligand 2 (PD-L2; also known as B7-DC or CD273). PD-L2 is a cell-surface ligand that competes with PD-L1 for binding to the immunosuppressive receptor programmed death-1 (PD-1). PD-1 is a member of the CD28/B7 family that plays an important role in negatively regulating immune responses upon interaction with its two ligands, PD-L1 or PD-L2. PD-L2 has a higher affinity for PD-1 but is expressed at lower levels. PD-L2 interaction with PD-1 suppresses T cell proliferation, cytokine production and cytotoxic activity. PD-L2 is expressed on tumor cells, antigen-presenting cells or APCs (such as macrophages, B cells and dendritic cells), and a variety of other immune and nonimmune cells. Tumor expression of PD-L2 may contribute to tumor evasion of immune destruction by inactivating T cells. Thus, PD-L2 is a negative predictor for prognosis among solid cancer patients.


Pssm-ID: 409578  Cd Length: 82  Bit Score: 185.24  E-value: 4.87e-60
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 530390186 127 NTHILKVPETDEVELTCQATGYPLAEVSWPNVSVPANTSHSRTPEGLYQVTSVLRLKPPPGRNFSCVFWNTHVRELTLAS 206
Cdd:cd20986    1 DTHILEVPGTGEVQLTCQARGYPLAEVSWQNVSVPANTSHTRTPEGLYQVTSVLRLKPQPGRNFSCMFWNAHMKELTSAI 80


                 ..
gi 530390186 207 ID 208
Cdd:cd20986   81 ID 82
IG_like smart00410
Immunoglobulin like; IG domains that cannot be classified into one of IGv1, IGc1, IGc2, IG.
 35-119 2.11e-04

Immunoglobulin like; IG domains that cannot be classified into one of IGv1, IGc1, IGc2, IG.


Pssm-ID: 214653 [Multi-domain]  Cd Length: 85  Bit Score: 39.41  E-value: 2.11e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 530390186    35 GSNVTLECNFDTGSHVNLgaitaSLQKVENDTSPHRERATLLEEQlplGKASFHIPQVQVRDEGQYQCIIIYGVAWDYKY 114
Cdd:smart00410   9 GESVTLSCEASGSPPPEV-----TWYKQGGKLLAESGRFSVSRSG---STSTLTISNVTPEDSGTYTCAATNSSGSASSG 80


                   ....*
gi 530390186   115 LTLKV 119
Cdd:smart00410  81 TTLTV 85
C2-set_2 pfam08205
CD80-like C2-set immunoglobulin domain; These domains belong to the immunoglobulin superfamily.
 138-194 4.10e-04

CD80-like C2-set immunoglobulin domain; These domains belong to the immunoglobulin superfamily.


Pssm-ID: 400489  Cd Length: 89  Bit Score: 38.55  E-value: 4.10e-04
                          10        20        30        40        50        60
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*
gi 530390186  138 EVELTCQAT-GYPLAEVSW----PNVSVPANTSHSRTPEGLYQVTSVLRLKPPP---GRNFSCVF 194
Cdd:pfam08205  16 EVVATCSSAgGKPAPRITWyldgKPLEAAETSSEQDPESGLVTVTSELKLVPSRsdhGQSLTCQV 80
Ig_3 pfam13927
Immunoglobulin domain; This family contains immunoglobulin-like domains.
 22-103 1.61e-03

Immunoglobulin domain; This family contains immunoglobulin-like domains.


Pssm-ID: 464046 [Multi-domain]  Cd Length: 78  Bit Score: 36.77  E-value: 1.61e-03
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 530390186   22 TVTVPKELYIIEHGSNVTLECNFDTGSHVNlgaITASLQKVENDTSPHRERATLLeeqlplGKASFHIPQVQVRDEGQYQ 101
Cdd:pfam13927   3 VITVSPSSVTVREGETVTLTCEATGSPPPT---ITWYKNGEPISSGSTRSRSLSG------SNSTLTISNVTRSDAGTYT 73


                  ..
gi 530390186  102 CI 103
Cdd:pfam13927  74 CV 75
 
Name Accession Description Interval E-value
IgV_PD-L2 cd20983
Immunoglobulin Variable (IgV) domain of Programmed death ligand 2 (PD-L2); The members here ...
 20-119 7.96e-69

Immunoglobulin Variable (IgV) domain of Programmed death ligand 2 (PD-L2); The members here are composed of the immunoglobulin variable (IgV) domain of Programmed death ligand 2 (PD-L2; also known as B7-DC or CD273). Receptor-binding domain of PD-L2 is a cell-surface ligand that competes with PD-L1 for binding to the immunosuppressive receptor programmed death-1 (PD-1). PD-1 is a member of the CD28/B7 family that plays an important role in negatively regulating immune responses upon interaction with its two ligands, PD-L1 or PD-L2. PD-L2 has a higher affinity for PD-1 but is expressed at lower levels. PD-L2 interaction with PD-1 suppresses T cell proliferation, cytokine production and cytotoxic activity. PD-L2 is expressed on tumor cells, antigen-presenting cells or APCs (such as macrophages, B cells and dendritic cells), and a variety of other immune and nonimmune cells. Tumor expression of PD-L2 may contribute to tumor evasion of immune destruction by inactivating T cells. Thus, PD-L2 is a negative predictor for prognosis among solid cancer patients.


Pssm-ID: 409575  Cd Length: 100  Bit Score: 208.19  E-value: 7.96e-69
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 530390186  20 LFTVTVPKELYIIEHGSNVTLECNFDTGSHVNLGAITASLQKVENDTSPHRERATLLEEQLPLGKASFHIPQVQVRDEGQ 99
Cdd:cd20983    1 LFTVTVPKELYTVDHGSNVTLECDFDTGEHVELGAIRASLQKVENDTSLHSERATLLEEQLPLGKALFHIPSVQVRDAGQ 80

                         90       100
                 ....*....|....*....|
gi 530390186 100 YQCIIIYGVAWDYKYLTLKV 119
Cdd:cd20983   81 YRCLIIYGVAWDYKYLTLKV 100
IgC1_PD-L2 cd20986
Immunoglobulin Constant 1 (IgC1) domain of Programmed death ligand 2 (PD-L2); The members here ...
 127-208 4.87e-60

Immunoglobulin Constant 1 (IgC1) domain of Programmed death ligand 2 (PD-L2); The members here are composed of the immunoglobulin Constant 1 (IgC1) domain of Programmed death ligand 2 (PD-L2; also known as B7-DC or CD273). PD-L2 is a cell-surface ligand that competes with PD-L1 for binding to the immunosuppressive receptor programmed death-1 (PD-1). PD-1 is a member of the CD28/B7 family that plays an important role in negatively regulating immune responses upon interaction with its two ligands, PD-L1 or PD-L2. PD-L2 has a higher affinity for PD-1 but is expressed at lower levels. PD-L2 interaction with PD-1 suppresses T cell proliferation, cytokine production and cytotoxic activity. PD-L2 is expressed on tumor cells, antigen-presenting cells or APCs (such as macrophages, B cells and dendritic cells), and a variety of other immune and nonimmune cells. Tumor expression of PD-L2 may contribute to tumor evasion of immune destruction by inactivating T cells. Thus, PD-L2 is a negative predictor for prognosis among solid cancer patients.


Pssm-ID: 409578  Cd Length: 82  Bit Score: 185.24  E-value: 4.87e-60
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 530390186 127 NTHILKVPETDEVELTCQATGYPLAEVSWPNVSVPANTSHSRTPEGLYQVTSVLRLKPPPGRNFSCVFWNTHVRELTLAS 206
Cdd:cd20986    1 DTHILEVPGTGEVQLTCQARGYPLAEVSWQNVSVPANTSHTRTPEGLYQVTSVLRLKPQPGRNFSCMFWNAHMKELTSAI 80


                 ..
gi 530390186 207 ID 208
Cdd:cd20986   81 ID 82
IgV_PDl1 cd20947
Immunoglobulin Variable (IgV) domain of Programmed death ligand 1 (PD-L1); The members here ...
 23-119 1.78e-23

Immunoglobulin Variable (IgV) domain of Programmed death ligand 1 (PD-L1); The members here are composed of the immunoglobulin variable (IgV) domain of Programmed death ligand 1 (PD-L1; also known as Cluster of Differentiation 274 (CD274)). PD-L1 is a cell-surface ligand that competes with PD-L2 for binding to the immunosuppressive receptor programmed death-1 (PD-1). PD-1 is a member of the B7 family that plays an important role in negatively regulating immune responses upon interaction with its two ligands, PD-L1 or PD-L2. Like PD-L2, PD-L1 interacts with PD-1 and suppresses T cell proliferation and cytokine production. The PD-1 receptor is expressed on the surface of activated T cells, while PD-L1 is expressed on cancer cells. When PD-1 and PD-L1 bind together, they form a molecular shield protecting tumor cells from being destroyed by the immune system. Thus, inhibiting the binding of PD-L1 to PD-1 with an antibody leads to killing of tumor cells by T cells. PD-1 inhibitors (such as Pembrolizumab, Nivolumab, and Cemiplimab) and PD-L1 inhibitors (such as Atezolizumab, Avelumab, and Durvalumab ) are an emerging class of immunotherapy that stimulate lymphocytes against tumor cells.


Pssm-ID: 409539  Cd Length: 110  Bit Score: 91.92  E-value: 1.78e-23
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 530390186  23 VTVPKELYIIEHGSNVTLECNFDTGSHVNLGAITASLQKV----------ENDTSP----HRERATLLEEQLPLGKASFH 88
Cdd:cd20947    1 VTVPKDLYVVEYGSNMTIECKFPVEKQLDLAALIVYWEMEdkniiqfvhgEEDLKVqhssYRQRARLLKDQLSLGNAALQ 80

                         90       100       110
                 ....*....|....*....|....*....|.
gi 530390186  89 IPQVQVRDEGQYQCIIIYGVAwDYKYLTLKV 119
Cdd:cd20947   81 ITDVKLQDAGVYRCMISYGGA-DYKRITVKV 110
IgV_B7-H3 cd20934
Immunoglobulin Variable (IgV) domain of B7-H3, a member of the B7 family of immune checkpoint ...
 25-104 2.37e-05

Immunoglobulin Variable (IgV) domain of B7-H3, a member of the B7 family of immune checkpoint molecules; The members here are composed of the immunoglobulin variable (IgV) domain of B7-H3 also known as CD276), a member of the B7 family of immune checkpoint molecules. B7-H3 is an important immune checkpoint member of the B7 family and shares homology with other B7 ligands such as programmed death ligand 1 (PD-L1). The B7 family molecules interact with CD28 on T-cells to provide co-stimulatory signals that regulate T-cell activation and T-helper cell differentiation. Although B7-H3 has been shown to have both co-stimulatory and co-inhibitory effects on T-cell responses, the most current studies describe B7-H3 as a T cell inhibitor that promotes tumor aggressiveness and proliferation. Moreover, B7-H3 is highly overexpressed on a wide range of human solid cancers and promotes tumor growth, metastasis, and drug resistance. Thus, B7-H3 expression in tumors often correlates with both negative prognosis and poor clinical outcome in cancer patients. B7-H3 protein contains a predicted signal peptide, V- and C-like Ig domains (IgV and IgC), a transmembrane region, and an intracellular tail.


Pssm-ID: 409528  Cd Length: 115  Bit Score: 42.59  E-value: 2.37e-05
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 530390186  25 VPKELYIIEHGSNVTLECNFDTGSHVNLG----------------AITASLQKVENDTSPHRERATLLEEQLPLGKASFH 88
Cdd:cd20934    2 VPEDPVVALVGTDATLRCSFSPEPGFSLAqlsvfwqltdtkqlvhSFTESQDQGRDQGSAYANRTALFPDLLAQGNASLR 81

                         90
                 ....*....|....*.
gi 530390186  89 IPQVQVRDEGQYQCII 104
Cdd:cd20934   82 LQRVRVADEGSYTCFV 97
IgC1 cd00098
Immunoglobulin Constant-1 (C1)-set domain; The members here are composed of C1-set domains, ...
 136-193 3.26e-05

Immunoglobulin Constant-1 (C1)-set domain; The members here are composed of C1-set domains, classical Ig-like domains resembling the antibody constant domain. Members of the IgC1 family are components of immunoglobulin, T-cell receptors, CD1 cell surface glycoproteins, secretory glycoproteins A/C, and major histocompatibility complex (MHC) class I/II molecules. In immunoglobulins, each chain is composed of one variable domain (IgV) and one or more IgC domains. These names reflect the fact that the variability in sequences is higher in the variable domain than in the constant domain. The IgV domain is responsible for antigen binding, while the IgC domain is involved in oligomerization and molecular interactions. The structures in C1-set are smaller than those in the V-set; they have one beta sheet that is formed by strands A, B, E, and D and the other strands by G, F, C, and C'.


Pssm-ID: 409354  Cd Length: 95  Bit Score: 41.68  E-value: 3.26e-05
                         10        20        30        40        50        60
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 530390186 136 TDEVELTCQATGY--PLAEVSW--PNVSVPANTSHS---RTPEGLYQVTSVLRLKP---PPGRNFSCV 193
Cdd:cd00098   14 GGKVTLVCLVSGFypKDITVTWlkNGVPLTSGVSTSspvEPNDGTYSVTSSLTVPPsdwDEGATYTCV 81
IgI_3_Contactin cd04968
Third immunoglobulin (Ig) domain of contactin; member of the I-set of Ig superfamily (IgSF) ...
 23-103 8.54e-05

Third immunoglobulin (Ig) domain of contactin; member of the I-set of Ig superfamily (IgSF) domains; The members here are composed of the third immunoglobulin (Ig) domain of contactins. Contactins are neural cell adhesion molecules and are comprised of six Ig domains followed by four fibronectin type III (FnIII) domains anchored to the membrane by glycosylphosphatidylinositol. The first four Ig domains form the intermolecular binding fragment, which arranges as a compact U-shaped module via contacts between Ig domains 1 and 4, and between Ig domains 2 and 3. Contactin-2 (TAG-1, axonin-1) may play a part in the neuronal processes of neurite outgrowth, axon guidance and fasciculation, and neuronal migration. This group also includes contactin-1 and contactin-5. The different contactins show different expression patterns in the central nervous system. During development and in adulthood, contactin-2 is transiently expressed in subsets of central and peripheral neurons. Contactin-5 is expressed specifically in the rat postnatal nervous system, peaking at about 3 weeks postnatal, and a lack of contactin-5 (NB-2) results in an impairment of neuronal activity in the rat auditory system. Contactin-5 is highly expressed in the adult human brain in the occipital lobe and in the amygdala. Contactin-1 is differentially expressed in tumor tissues and may, through a RhoA mechanism, facilitate invasion and metastasis of human lung adenocarcinoma. This group belongs to the I-set of IgSF domains.


Pssm-ID: 409357 [Multi-domain]  Cd Length: 88  Bit Score: 40.61  E-value: 8.54e-05
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 530390186  23 VTVPKELYIIEhGSNVTLECnFDTGSHVNlgaiTASLQKVENDTSPHRERATlleeqlplGKASFHIPQVQVRDEGQYQC 102
Cdd:cd04968    5 VRFPADTYALK-GQTVTLEC-FALGNPVP----QIKWRKVDGSPSSQWEITT--------SEPVLEIPNVQFEDEGTYEC 70


                 .
gi 530390186 103 I 103
Cdd:cd04968   71 E 71
IG_like smart00410
Immunoglobulin like; IG domains that cannot be classified into one of IGv1, IGc1, IGc2, IG.
 35-119 2.11e-04

Immunoglobulin like; IG domains that cannot be classified into one of IGv1, IGc1, IGc2, IG.


Pssm-ID: 214653 [Multi-domain]  Cd Length: 85  Bit Score: 39.41  E-value: 2.11e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 530390186    35 GSNVTLECNFDTGSHVNLgaitaSLQKVENDTSPHRERATLLEEQlplGKASFHIPQVQVRDEGQYQCIIIYGVAWDYKY 114
Cdd:smart00410   9 GESVTLSCEASGSPPPEV-----TWYKQGGKLLAESGRFSVSRSG---STSTLTISNVTPEDSGTYTCAATNSSGSASSG 80


                   ....*
gi 530390186   115 LTLKV 119
Cdd:smart00410  81 TTLTV 85
IgV_B7-H4 cd20984
Immunoglobulin Variable (IgV) domain of B7-H4; The members here are composed of the ...
 35-105 2.16e-04

Immunoglobulin Variable (IgV) domain of B7-H4; The members here are composed of the immunoglobulin variable (IgV) domain of B7-H4 (also known as B7-S1, B7x, or Vtcn1). B7-H4 is one of the B7 family of immune-regulatory ligands that act as negative regulators of T cell function; it contains one IgV domain and one IgC domain. The B7-family consists of structurally related cell-surface protein ligands, which bind to receptors on lymphocytes that regulate immune responses. The binding of B7-H4 to unidentified receptors results in the inhibition of TCR-mediated T cell proliferation, cell-cycle progression and IL-2 production. As a co-inhibitory molecule, B7-H4 is widely expressed in tumor tissues and its expression is significantly associated with poor prognosis in human cancers such as glioma, pancreatic cancer, oral squamous cell carcinoma, renal cell carcinoma, and lung cancer.


Pssm-ID: 409576  Cd Length: 110  Bit Score: 39.89  E-value: 2.16e-04
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 530390186  35 GSNVTLECNFDtgSHVNLGAITASLQKVE---------------NDTSP-HRERATLLEEQLPLGKASFHIPQVQVRDEG 98
Cdd:cd20984   12 GEDGILSCTFT--PDIKLSDIVIQWLKEGdsglvhefkegkdelSRQSPmFRGRTSLFADQVHVGNASLRLKNVQLTDAG 89


                 ....*..
gi 530390186  99 QYQCIII 105
Cdd:cd20984   90 TYLCIIS 96
IgC1_Tapasin_R cd05771
Tapasin-R immunoglobulin-like domain; member of the C1-set of Ig superfamily (IgSF) domains; ...
 138-199 3.02e-04

Tapasin-R immunoglobulin-like domain; member of the C1-set of Ig superfamily (IgSF) domains; The members here are composed of the immunoglobulin-like domain on Tapasin-R. Tapasin is a V-C1 (variable-constant) immunoglobulin superfamily molecule present in the endoplasmic reticulum (ER), where it links MHC class I molecules to the transporter associated with antigen processing (TAP). Tapasin-R is a tapasin-related protein that contains similar structural motifs to Tapasin, with some marked differences, especially in the V domain, transmembrane and cytoplasmic regions. The majority of Tapasin-R is located within the ER; however, there may be some expression of Tapasin-R at the cell surface. Tapasin-R lacks an obvious ER retention signal.


Pssm-ID: 409428  Cd Length: 100  Bit Score: 39.40  E-value: 3.02e-04
                         10        20        30        40        50        60        70
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 530390186 138 EVELTCQATG-YPL-AEVSW-------PNVSVPAN----TSHSRTPEGLYQVTSVLRLKP---PPGRNFSCvfWNTHV 199
Cdd:cd05771   16 PQTLSCHIAGyYPLdVDVEWlreepggSESQVSRDgvslSSHRQSVDGTYSISSYLTLEPgteNRGATYTC--RVTHV 91
C2-set_2 pfam08205
CD80-like C2-set immunoglobulin domain; These domains belong to the immunoglobulin superfamily.
 138-194 4.10e-04

CD80-like C2-set immunoglobulin domain; These domains belong to the immunoglobulin superfamily.


Pssm-ID: 400489  Cd Length: 89  Bit Score: 38.55  E-value: 4.10e-04
                          10        20        30        40        50        60
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*
gi 530390186  138 EVELTCQAT-GYPLAEVSW----PNVSVPANTSHSRTPEGLYQVTSVLRLKPPP---GRNFSCVF 194
Cdd:pfam08205  16 EVVATCSSAgGKPAPRITWyldgKPLEAAETSSEQDPESGLVTVTSELKLVPSRsdhGQSLTCQV 80
IgC1_2_Nectin-2_Necl-5_like cd07703
Second immunoglobulin (Ig) domain of Nectin-2 and Nectin-like protein 5, and similar domains; ...
 142-219 4.76e-04

Second immunoglobulin (Ig) domain of Nectin-2 and Nectin-like protein 5, and similar domains; member of the C1-set of the Ig superfamily (IgSF) domains; The members here are composed of the second immunoglobulin (Ig) domain of nectin-2 (also known as poliovirus receptor related protein 2 or Cluster of Differentiation 112 (CD112)), nectin-like protein 5 (CD155), and similar proteins. Nectins and Nectin-like molecules are a family of Ca(2+)-independent immunoglobulin-like transmembrane glycoproteins belonging to the class of adhesion receptors, consisting of nine members (nectins 1 through 4 and nectin-like proteins 1 through 5). Nectins are synaptic cell adhesion molecules (CAMs) which facilitate adhesion and signaling at various intracellular junctions. Nectins form homophilic cis-dimers, followed by homophilic and heterophilic trans-dimers involved in cell-cell adhesion. Nectin-2 and nectin-3 localize at Sertoli-spermatid junctions where they form heterophilic trans-interactions between the cells that are essential for the formation and maintenance of the junctions and for spermatid development. CD155 is the fifth member in the nectin-like molecule family, and functions as the receptor of poliovirus; therefore, CD155 is also referred to as Necl-5, or PVR. In contrast to all other family members, CD155 lacks self-adhesion capacity, yet it shares with nectins the feature to interact with other nectins. For instance, CD155 heterophilically trans-interacts with nectin-3, thereby contributing significantly to the establishment of adherens junctions between epithelial cells. This group belongs to the Constant 1 (C1)-set of IgSF domains, which has one beta-sheet that is formed by strands A-B-E-D and the other strands by G-F-C-C'.


Pssm-ID: 409500  Cd Length: 97  Bit Score: 38.54  E-value: 4.76e-04
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 530390186 142 TCQAT-GYPLAEVSWPNvSVPANTSHSRTPE---GLYQVTSVLRLKPPP---GRNFSCVfwnthvreltlasIDLQSQME 214
Cdd:cd07703   21 RCVSAnGRPPARISWSS-TLNGNANTTQVPGpdsGTVTVTSEYSLVPTPeanGKEVTCK-------------VEHETLEE 86


                 ....*
gi 530390186 215 PRTHP 219
Cdd:cd07703   87 PQLLP 91
IgV_MOG_like cd05713
Immunoglobulin (Ig)-like domain of myelin oligodendrocyte glycoprotein (MOG); The members here ...
 70-119 8.55e-04

Immunoglobulin (Ig)-like domain of myelin oligodendrocyte glycoprotein (MOG); The members here are composed of the immunoglobulin (Ig)-like domain of myelin oligodendrocyte glycoprotein (MOG). MOG, a minor component of the myelin sheath, is an important CNS-specific autoantigen, linked to the pathogenesis of multiple sclerosis (MS) and experimental autoimmune encephalomyelitis (EAE). It is a transmembrane protein having an extracellular Ig domain. MOG is expressed in the CNS on the outermost lamellae of the myelin sheath, and on the surface of oligodendrocytes, and may participate in the completion, compaction, and/or maintenance of myelin. This group also includes butyrophilin (BTN). BTN is the most abundant protein in bovine milk-fat globule membrane (MFGM).


Pssm-ID: 409378  Cd Length: 114  Bit Score: 38.33  E-value: 8.55e-04
                         10        20        30        40        50
                 ....*....|....*....|....*....|....*....|....*....|
gi 530390186  70 RERATLLEEQLPLGKASFHIPQVQVRDEGQYQCIIIYGVAWDYKYLTLKV 119
Cdd:cd05713   64 RGRTELLKDAIAEGSVALRIHNVRPSDEGQYTCFFRSGSFYEEATLELKV 113
Ig_3 pfam13927
Immunoglobulin domain; This family contains immunoglobulin-like domains.
 22-103 1.61e-03

Immunoglobulin domain; This family contains immunoglobulin-like domains.


Pssm-ID: 464046 [Multi-domain]  Cd Length: 78  Bit Score: 36.77  E-value: 1.61e-03
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 530390186   22 TVTVPKELYIIEHGSNVTLECNFDTGSHVNlgaITASLQKVENDTSPHRERATLLeeqlplGKASFHIPQVQVRDEGQYQ 101
Cdd:pfam13927   3 VITVSPSSVTVREGETVTLTCEATGSPPPT---ITWYKNGEPISSGSTRSRSLSG------SNSTLTISNVTRSDAGTYT 73


                  ..
gi 530390186  102 CI 103
Cdd:pfam13927  74 CV 75
IgC2_D1_D2_LILR_KIR_like cd16843
Immunoglobulin (Ig)-like domain found in Leukocyte Ig-like receptors, Natural killer ...
 32-110 1.68e-03

Immunoglobulin (Ig)-like domain found in Leukocyte Ig-like receptors, Natural killer inhibitory receptors (KIRs) and similar domains; member of Immunoglobulin Constant-2 set of IgSF domains; The members here are composed of the first and second immunoglobulin (Ig)-like domains found in Leukocyte Ig-like receptors (LILRs), Natural killer inhibitory receptors (KIRs, also known as also known as cluster of differentiation (CD) 158), and similar proteins. This group includes LILRB1 (also known as LIR-1), LILRA5 (also known as LIR9), an activating natural cytotoxicity receptor NKp46, the immune-type receptor glycoprotein VI (GPVI), and the IgA-specific receptor Fc-alphaRI (also known as cluster of differentiation (CD) 89). LILRs are a family of immunoreceptors expressed on expressed on T and B cells, on monocytes, dendritic cells, and subgroups of natural killer (NK) cells. The human LILR family contains nine proteins (LILRA1-3, and 5, and LILRB1-5). From functional assays, and as the cytoplasmic domains of various LILRs, for example LILRB1, LILRB2 (also known as LIR-2), and LILRB3 (also known as LIR-3) contain immunoreceptor tyrosine-based inhibitory motifs (ITIMs), it is thought that LIR proteins are inhibitory receptors. Of the eight LIR family proteins, only LILRB1, and LILRB2, show detectable binding to class I MHC molecules; ligands for the other members have yet to be determined. The extracellular portions of the different LIR proteins contain different numbers of Ig-like domains for example, four in the case of LILRB1, and LILRB2, and two in the case of LILRB4 (also known as LIR-5). The activating natural cytotoxicity receptor NKp46 is expressed in natural killer cells, and is organized as an extracellular portion having two Ig-like extracellular domains, a transmembrane domain, and a small cytoplasmic portion. GPVI, which also contains two Ig-like domains, participates in the processes of collagen-mediated platelet activation and arterial thrombus formation. Fc-alphaRI is expressed on monocytes, eosinophils, neutrophils, and macrophages; it mediates IgA-induced immune effector responses such as phagocytosis, antibody-dependent cell-mediated cytotoxicity and respiratory burst. Killer cell immunoglobulin-like receptors (KIRs; also known as CD158 for human KIR) are transmembrane glycoproteins expressed by natural killer cells and subsets of T cells. KIRs are a family of highly polymorphic activating and inhibitory receptors that serve as key regulators of human NK cell function. The KIR proteins are classified by the number of extracellular immunoglobulin domains (2D or 3D) and by whether they have a long (L) or short (S) cytoplasmic domain. KIR proteins with the long cytoplasmic domain transduce inhibitory signals upon ligand binding via an immune tyrosine-based inhibitory motif (ITIM), while KIR proteins with the short cytoplasmic domain lack the ITIM motif and instead associate with the TYRO protein tyrosine kinase binding protein to transduce activating signals. The major ligands for KIR are MHC class I (HLA-A, -B or -C) molecules.


Pssm-ID: 409518 [Multi-domain]  Cd Length: 90  Bit Score: 36.97  E-value: 1.68e-03
                         10        20        30        40        50        60        70
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....
gi 530390186  32 IEHGSNVTLECnfdtgsHVNLGAITASLQKVENDTSPHRERatlleEQLPLGKASFHIPQVQVRDEGQYQCIIIYGVAW 110
Cdd:cd16843   12 VPLGENVTIRC------QGPPEAVLFQLYKEGNSLSQGTVR-----EKEPQNKAEFYIPHMDRNHAGRYRCRYRSGTLW 79
Ig_3 pfam13927
Immunoglobulin domain; This family contains immunoglobulin-like domains.
 133-196 2.27e-03

Immunoglobulin domain; This family contains immunoglobulin-like domains.


Pssm-ID: 464046 [Multi-domain]  Cd Length: 78  Bit Score: 36.39  E-value: 2.27e-03
                          10        20        30        40        50        60
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*.
gi 530390186  133 VPETDEVELTCQATGYPLAEVSW-PNVSVPANTSHSRTPEGLYQVT-SVLRLKPPPGRNFSCVFWN 196
Cdd:pfam13927  13 VREGETVTLTCEATGSPPPTITWyKNGEPISSGSTRSRSLSGSNSTlTISNVTRSDAGTYTCVASN 78
 
Blast search parameters
Data Source: Precalculated data, version = cdd.v.3.21
Preset Options:Database: CDSEARCH/cdd   Low complexity filter: no  Composition Based Adjustment: yes   E-value threshold: 0.01

References:

  • Wang J et al. (2023), "The conserved domain database in 2023", Nucleic Acids Res.51(D)384-8.
  • Lu S et al. (2020), "The conserved domain database in 2020", Nucleic Acids Res.48(D)265-8.
  • Marchler-Bauer A et al. (2017), "CDD/SPARCLE: functional classification of proteins via subfamily domain architectures.", Nucleic Acids Res.45(D)200-3.
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