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Details on Person UniProt:P23083 IGHV1-2

Class:IdReferenceGeneProduct:56750
_chainChangeLogsignal peptide:1-19 added on Fri February 6 2015;chain:20-117 added on Fri February 6 2015
_displayNameUniProt:P23083 IGHV1-2
_timestamp2024-11-03 20:14:46
chainsignal peptide:1-19
chain:20-117
checksumCFCC08BE572F76A8
commentFUNCTION V region of the variable domain of immunoglobulin heavy chains that participates in the antigen recognition (PubMed:24600447). Immunoglobulins, also known as antibodies, are membrane-bound or secreted glycoproteins produced by B lymphocytes. In the recognition phase of humoral immunity, the membrane-bound immunoglobulins serve as receptors which, upon binding of a specific antigen, trigger the clonal expansion and differentiation of B lymphocytes into immunoglobulins-secreting plasma cells. Secreted immunoglobulins mediate the effector phase of humoral immunity, which results in the elimination of bound antigens (PubMed:20176268, PubMed:22158414). The antigen binding site is formed by the variable domain of one heavy chain, together with that of its associated light chain. Thus, each immunoglobulin has two antigen binding sites with remarkable affinity for a particular antigen. The variable domains are assembled by a process called V-(D)-J rearrangement and can then be subjected to somatic hypermutations which, after exposure to antigen and selection, allow affinity maturation for a particular antigen (PubMed:17576170, PubMed:20176268).SUBUNIT Immunoglobulins are composed of two identical heavy chains and two identical light chains; disulfide-linked.SUBCELLULAR LOCATION There are several alleles. The sequence shown is that of IMGT allele IGHV1-2*04.CAUTION For examples of full-length immunoglobulin heavy chains (of different isotypes) see AC P0DOX2, AC P0DOX3, AC P0DOX4, AC P0DOX5 and AC P0DOX6.
descriptionrecommendedName: fullName evidence="7 12"Immunoglobulin heavy variable 1-2 alternativeName: fullName evidence="15"Ig heavy chain V-I region ND alternativeName: fullName evidence="14"Ig heavy chain V-I region V35
geneNameIGHV1-2
identifierP23083
isSequenceChangedFALSE
keyword3D-structure
Adaptive immunity
Cell membrane
Direct protein sequencing
Disulfide bond
Immunity
Immunoglobulin
Immunoglobulin domain
Membrane
Proteomics identification
Pyrrolidone carboxylic acid
Reference proteome
Secreted
Signal
modified[InstanceEdit:84067] Schmidt, EE, 2003-12-18 04:29:09
[InstanceEdit:143527] Schmidt, EE, 2004-11-12 07:45:10
[InstanceEdit:217385] Schmidt, EE, 2008-03-27 06:23:53
[InstanceEdit:354386] Schmidt, EE, 2008-06-18 04:45:12
[InstanceEdit:384350] Kanapin, AA, 2008-11-26 14:00:39
[InstanceEdit:392885] Kanapin, AA, 2009-03-09 12:07:18
[InstanceEdit:400710] Schmidt, EE, 2009-03-25 05:33:35
[InstanceEdit:423310] Kanapin, AA
[InstanceEdit:435478] Kanapin, AA
[InstanceEdit:435871] Kanapin, AA
[InstanceEdit:447347] Kanapin, AA
[InstanceEdit:525883] Kanapin, AA
[InstanceEdit:613449] Kanapin, AA
[InstanceEdit:797602] Kanapin, AA
[InstanceEdit:937368] Yung, CK
[InstanceEdit:1042053] Yung, CK
[InstanceEdit:1220657] Yung, CK
[InstanceEdit:1300696] Yung, CK
[InstanceEdit:1301627] Yung, CK
[InstanceEdit:1551960] Weiser, JD
[InstanceEdit:1995863] Weiser, JD
[InstanceEdit:2132304] Weiser, JD
[InstanceEdit:2265580] Weiser, JD
[InstanceEdit:5433710] Weiser, JD
[InstanceEdit:5618415] Weiser, JD
[InstanceEdit:5634237] Weiser, JD
[InstanceEdit:5673015] Weiser, JD
[InstanceEdit:5691543] Weiser, JD
[InstanceEdit:6791590] Weiser, JD
[InstanceEdit:6807888] Weiser, JD
[InstanceEdit:8856987] Weiser, JD
[InstanceEdit:8869714] Weiser, JD
[InstanceEdit:8934940] Weiser, JD
[InstanceEdit:8944791] Weiser, JD
[InstanceEdit:8987656] Weiser, JD
[InstanceEdit:9037114] Weiser, JD
[InstanceEdit:9637257] Weiser, JD
[InstanceEdit:9657908] Weiser, JD
[InstanceEdit:9676415] Weiser, JD
[InstanceEdit:9715482] Weiser, JD
[InstanceEdit:9730071] Weiser, JD
[InstanceEdit:9852000] Weiser, Joel, 2023-11-03
[InstanceEdit:9917590] Weiser, Joel, 2024-08-09
[InstanceEdit:9926675] Weiser, Joel, 2024-11-03
nameIGHV1-2
referenceDatabase[ReferenceDatabase:2] UniProt
referenceGene[ReferenceDNASequence:8991901] ENSEMBL:ENSG00000211934 IGHV1-2 [Homo sapiens]
secondaryIdentifierHV102_HUMAN
A0A087WSX2
P01744
sequenceLength117
species[Species:48887] Homo sapiens
(referenceEntity)[EntityWithAccessionedSequence:8948191] IGHV1-2 [extracellular region] [Homo sapiens]
[EntityWithAccessionedSequence:8948195] IGHV1-2 [plasma membrane] [Homo sapiens]
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No pathways have been reviewed or authored by UniProt:P23083 IGHV1-2 (56750)