HV102_HUMAN
ID HV102_HUMAN Reviewed; 117 AA.
AC P23083; A0A087WSX2; P01744;
DT 01-NOV-1991, integrated into UniProtKB/Swiss-Prot.
DT 07-SEP-2016, sequence version 2.
DT 03-AUG-2022, entry version 143.
DE RecName: Full=Immunoglobulin heavy variable 1-2 {ECO:0000303|PubMed:11340299, ECO:0000303|Ref.7};
DE AltName: Full=Ig heavy chain V-I region ND {ECO:0000305|PubMed:6815656};
DE AltName: Full=Ig heavy chain V-I region V35 {ECO:0000305|PubMed:2841108};
DE Flags: Precursor;
GN Name=IGHV1-2 {ECO:0000303|PubMed:11340299, ECO:0000303|Ref.7};
OS Homo sapiens (Human).
OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia;
OC Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae;
OC Homo.
OX NCBI_TaxID=9606;
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA] (IMGT ALLELE IGHV1-2*01), AND VARIANTS
RP ARG-69; ARG-86; SER-89 AND VAL-111.
RX PubMed=2841108; DOI=10.1002/j.1460-2075.1988.tb02912.x;
RA Matsuda F., Lee K.H., Nakai S., Sato T., Kodaira M., Zong S.Q., Ohno H.,
RA Fukuhara S., Honjo T.;
RT "Dispersed localization of D segments in the human immunoglobulin heavy-
RT chain locus.";
RL EMBO J. 7:1047-1051(1988).
RN [2]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA] (IMGT ALLELE IGHV1-2*04).
RX PubMed=12508121; DOI=10.1038/nature01348;
RA Heilig R., Eckenberg R., Petit J.-L., Fonknechten N., Da Silva C.,
RA Cattolico L., Levy M., Barbe V., De Berardinis V., Ureta-Vidal A.,
RA Pelletier E., Vico V., Anthouard V., Rowen L., Madan A., Qin S., Sun H.,
RA Du H., Pepin K., Artiguenave F., Robert C., Cruaud C., Bruels T.,
RA Jaillon O., Friedlander L., Samson G., Brottier P., Cure S., Segurens B.,
RA Aniere F., Samain S., Crespeau H., Abbasi N., Aiach N., Boscus D.,
RA Dickhoff R., Dors M., Dubois I., Friedman C., Gouyvenoux M., James R.,
RA Madan A., Mairey-Estrada B., Mangenot S., Martins N., Menard M., Oztas S.,
RA Ratcliffe A., Shaffer T., Trask B., Vacherie B., Bellemere C., Belser C.,
RA Besnard-Gonnet M., Bartol-Mavel D., Boutard M., Briez-Silla S.,
RA Combette S., Dufosse-Laurent V., Ferron C., Lechaplais C., Louesse C.,
RA Muselet D., Magdelenat G., Pateau E., Petit E., Sirvain-Trukniewicz P.,
RA Trybou A., Vega-Czarny N., Bataille E., Bluet E., Bordelais I., Dubois M.,
RA Dumont C., Guerin T., Haffray S., Hammadi R., Muanga J., Pellouin V.,
RA Robert D., Wunderle E., Gauguet G., Roy A., Sainte-Marthe L., Verdier J.,
RA Verdier-Discala C., Hillier L.W., Fulton L., McPherson J., Matsuda F.,
RA Wilson R., Scarpelli C., Gyapay G., Wincker P., Saurin W., Quetier F.,
RA Waterston R., Hood L., Weissenbach J.;
RT "The DNA sequence and analysis of human chromosome 14.";
RL Nature 421:601-607(2003).
RN [3]
RP NUCLEOTIDE SEQUENCE [MRNA], AND VARIANT ARG-86.
RX PubMed=6815656; DOI=10.1073/pnas.79.21.6661;
RA Kenten J.H., Molgaard H.V., Houghton M., Derbyshire R.B., Viney J.,
RA Bell L.O., Gould H.J.;
RT "Cloning and sequence determination of the gene for the human
RT immunoglobulin epsilon chain expressed in a myeloma cell line.";
RL Proc. Natl. Acad. Sci. U.S.A. 79:6661-6665(1982).
RN [4]
RP PROTEIN SEQUENCE OF 20-117, AND PYROGLUTAMATE FORMATION AT GLN-20.
RA Bennich H.H., Johansson S.G.O., von Bahr-Lindstrom H.;
RL (In) Bach M.K. (eds.);
RL Immediate hypersensitivity: modern concepts and developments, pp.1-36,
RL Marcel Dekker, New York (1978).
RN [5]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA] OF 20-116 (IMGT ALLELE IGHV1-2*01), AND
RP VARIANTS ARG-69; ARG-86; SER-89 AND VAL-111.
RX PubMed=7681398; DOI=10.1002/eji.1830230412;
RA Mariette X., Tsapis A., Brouet J.C.;
RT "Nucleotidic sequence analysis of the variable domains of four human
RT monoclonal IgM with an antibody activity to myelin-associated
RT glycoprotein.";
RL Eur. J. Immunol. 23:846-851(1993).
RN [6]
RP NOMENCLATURE.
RX PubMed=11340299; DOI=10.1159/000049189;
RA Lefranc M.P.;
RT "Nomenclature of the human immunoglobulin heavy (IGH) genes.";
RL Exp. Clin. Immunogenet. 18:100-116(2001).
RN [7]
RP NOMENCLATURE.
RA Lefranc M.P., Lefranc G.;
RT "The Immunoglobulin FactsBook.";
RL (In) Lefranc M.P., Lefranc G. (eds.);
RL The Immunoglobulin FactsBook., pp.1-458, Academic Press, London. (2001).
RN [8]
RP REVIEW ON SOMATIC HYPERMUTATION.
RX PubMed=17576170; DOI=10.1146/annurev.genet.41.110306.130340;
RA Teng G., Papavasiliou F.N.;
RT "Immunoglobulin somatic hypermutation.";
RL Annu. Rev. Genet. 41:107-120(2007).
RN [9]
RP REVIEW ON IMMUNOGLOBULINS.
RX PubMed=20176268; DOI=10.1016/j.jaci.2009.09.046;
RA Schroeder H.W. Jr., Cavacini L.;
RT "Structure and function of immunoglobulins.";
RL J. Allergy Clin. Immunol. 125:S41-S52(2010).
RN [10]
RP REVIEW ON FUNCTION.
RX PubMed=22158414; DOI=10.1038/nri3128;
RA McHeyzer-Williams M., Okitsu S., Wang N., McHeyzer-Williams L.;
RT "Molecular programming of B cell memory.";
RL Nat. Rev. Immunol. 12:24-34(2012).
RN [11]
RP NOMENCLATURE.
RX PubMed=24600447; DOI=10.3389/fimmu.2014.00022;
RA Lefranc M.P.;
RT "Immunoglobulin and T Cell Receptor Genes: IMGT((R)) and the Birth and Rise
RT of Immunoinformatics.";
RL Front. Immunol. 5:22-22(2014).
RN [12]
RP X-RAY CRYSTALLOGRAPHY (2.10 ANGSTROMS) OF 20-117, AND DISULFIDE BOND.
RX PubMed=17947238; DOI=10.1074/jbc.m706190200;
RA Makabe K., Nakanishi T., Tsumoto K., Tanaka Y., Kondo H., Umetsu M.,
RA Sone Y., Asano R., Kumagai I.;
RT "Thermodynamic consequences of mutations in vernier zone residues of a
RT humanized anti-human epidermal growth factor receptor murine antibody,
RT 528.";
RL J. Biol. Chem. 283:1156-1166(2008).
CC -!- FUNCTION: V region of the variable domain of immunoglobulin heavy
CC chains that participates in the antigen recognition (PubMed:24600447).
CC Immunoglobulins, also known as antibodies, are membrane-bound or
CC secreted glycoproteins produced by B lymphocytes. In the recognition
CC phase of humoral immunity, the membrane-bound immunoglobulins serve as
CC receptors which, upon binding of a specific antigen, trigger the clonal
CC expansion and differentiation of B lymphocytes into immunoglobulins-
CC secreting plasma cells. Secreted immunoglobulins mediate the effector
CC phase of humoral immunity, which results in the elimination of bound
CC antigens (PubMed:22158414, PubMed:20176268). The antigen binding site
CC is formed by the variable domain of one heavy chain, together with that
CC of its associated light chain. Thus, each immunoglobulin has two
CC antigen binding sites with remarkable affinity for a particular
CC antigen. The variable domains are assembled by a process called V-(D)-J
CC rearrangement and can then be subjected to somatic hypermutations
CC which, after exposure to antigen and selection, allow affinity
CC maturation for a particular antigen (PubMed:20176268, PubMed:17576170).
CC {ECO:0000303|PubMed:17576170, ECO:0000303|PubMed:20176268,
CC ECO:0000303|PubMed:22158414, ECO:0000303|PubMed:24600447}.
CC -!- SUBUNIT: Immunoglobulins are composed of two identical heavy chains and
CC two identical light chains; disulfide-linked.
CC {ECO:0000303|PubMed:20176268}.
CC -!- SUBCELLULAR LOCATION: Secreted {ECO:0000303|PubMed:20176268,
CC ECO:0000303|PubMed:22158414}. Cell membrane
CC {ECO:0000303|PubMed:20176268, ECO:0000303|PubMed:22158414}.
CC -!- POLYMORPHISM: There are several alleles. The sequence shown is that of
CC IMGT allele IGHV1-2*04. {ECO:0000305}.
CC -!- CAUTION: For examples of full-length immunoglobulin heavy chains (of
CC different isotypes) see AC P0DOX2, AC P0DOX3, AC P0DOX4, AC P0DOX5 and
CC AC P0DOX6. {ECO:0000305}.
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DR EMBL; X07448; -; NOT_ANNOTATED_CDS; Genomic_DNA.
DR EMBL; AC246787; -; NOT_ANNOTATED_CDS; Genomic_DNA.
DR PIR; A93933; E1HUND.
DR PIR; S00476; HVHU35.
DR PDB; 1WT5; X-ray; 2.10 A; A=20-117.
DR PDBsum; 1WT5; -.
DR AlphaFoldDB; P23083; -.
DR SMR; P23083; -.
DR DrugBank; DB08294; 2-(4-HYDROXY-3-NITROPHENYL)ACETIC ACID.
DR DrugBank; DB08295; 4-HYDROXY-3-NITROPHENYLACETYL-EPSILON-AMINOCAPROIC ACID ANION.
DR DrugBank; DB08273; 4-HYDROXY-5-IODO-3-NITROPHENYLACETYL-EPSILON-AMINOCAPROIC ACID ANION.
DR IMGT_GENE-DB; IGHV1-2; -.
DR CarbonylDB; P23083; -.
DR BioMuta; IGHV1-2; -.
DR DMDM; 123808; -.
DR jPOST; P23083; -.
DR MassIVE; P23083; -.
DR PeptideAtlas; P23083; -.
DR PRIDE; P23083; -.
DR Ensembl; ENST00000390594.3; ENSP00000375003.2; ENSG00000211934.3.
DR Ensembl; ENST00000633350.1; ENSP00000488290.1; ENSG00000282550.1.
DR UCSC; uc059gfn.1; human.
DR GeneCards; IGHV1-2; -.
DR HGNC; HGNC:5550; IGHV1-2.
DR HPA; ENSG00000211934; Tissue enhanced (intestine, lymphoid tissue).
DR neXtProt; NX_P23083; -.
DR OpenTargets; ENSG00000211934; -.
DR VEuPathDB; HostDB:ENSG00000211934; -.
DR GeneTree; ENSGT00950000183013; -.
DR OMA; WIGRMIT; -.
DR PhylomeDB; P23083; -.
DR PathwayCommons; P23083; -.
DR Reactome; R-HSA-166663; Initial triggering of complement.
DR Reactome; R-HSA-173623; Classical antibody-mediated complement activation.
DR Reactome; R-HSA-198933; Immunoregulatory interactions between a Lymphoid and a non-Lymphoid cell.
DR Reactome; R-HSA-202733; Cell surface interactions at the vascular wall.
DR Reactome; R-HSA-2029481; FCGR activation.
DR Reactome; R-HSA-2029482; Regulation of actin dynamics for phagocytic cup formation.
DR Reactome; R-HSA-2029485; Role of phospholipids in phagocytosis.
DR Reactome; R-HSA-2168880; Scavenging of heme from plasma.
DR Reactome; R-HSA-2454202; Fc epsilon receptor (FCERI) signaling.
DR Reactome; R-HSA-2730905; Role of LAT2/NTAL/LAB on calcium mobilization.
DR Reactome; R-HSA-2871796; FCERI mediated MAPK activation.
DR Reactome; R-HSA-2871809; FCERI mediated Ca+2 mobilization.
DR Reactome; R-HSA-2871837; FCERI mediated NF-kB activation.
DR Reactome; R-HSA-5690714; CD22 mediated BCR regulation.
DR Reactome; R-HSA-9664323; FCGR3A-mediated IL10 synthesis.
DR Reactome; R-HSA-9664422; FCGR3A-mediated phagocytosis.
DR Reactome; R-HSA-977606; Regulation of Complement cascade.
DR Reactome; R-HSA-983695; Antigen activates B Cell Receptor (BCR) leading to generation of second messengers.
DR SignaLink; P23083; -.
DR ChiTaRS; IGHV1-2; human.
DR EvolutionaryTrace; P23083; -.
DR Pharos; P23083; Tdark.
DR PRO; PR:P23083; -.
DR Proteomes; UP000005640; Chromosome 14.
DR RNAct; P23083; protein.
DR Bgee; ENSG00000211934; Expressed in vermiform appendix and 87 other tissues.
DR GO; GO:0009897; C:external side of plasma membrane; IBA:GO_Central.
DR GO; GO:0005576; C:extracellular region; TAS:Reactome.
DR GO; GO:0042571; C:immunoglobulin complex, circulating; IBA:GO_Central.
DR GO; GO:0005886; C:plasma membrane; TAS:Reactome.
DR GO; GO:0003823; F:antigen binding; IBA:GO_Central.
DR GO; GO:0034987; F:immunoglobulin receptor binding; IBA:GO_Central.
DR GO; GO:0050853; P:B cell receptor signaling pathway; IBA:GO_Central.
DR GO; GO:0006958; P:complement activation, classical pathway; IBA:GO_Central.
DR GO; GO:0042742; P:defense response to bacterium; IBA:GO_Central.
DR GO; GO:0006955; P:immune response; NAS:UniProtKB.
DR GO; GO:0045087; P:innate immune response; IBA:GO_Central.
DR GO; GO:0006911; P:phagocytosis, engulfment; IBA:GO_Central.
DR GO; GO:0006910; P:phagocytosis, recognition; IBA:GO_Central.
DR GO; GO:0050871; P:positive regulation of B cell activation; IBA:GO_Central.
DR Gene3D; 2.60.40.10; -; 1.
DR InterPro; IPR007110; Ig-like_dom.
DR InterPro; IPR036179; Ig-like_dom_sf.
DR InterPro; IPR013783; Ig-like_fold.
DR InterPro; IPR013106; Ig_V-set.
DR Pfam; PF07686; V-set; 1.
DR SMART; SM00406; IGv; 1.
DR SUPFAM; SSF48726; SSF48726; 1.
DR PROSITE; PS50835; IG_LIKE; 1.
PE 1: Evidence at protein level;
KW 3D-structure; Adaptive immunity; Cell membrane; Direct protein sequencing;
KW Disulfide bond; Immunity; Immunoglobulin; Immunoglobulin domain; Membrane;
KW Pyrrolidone carboxylic acid; Reference proteome; Secreted; Signal.
FT SIGNAL 1..19
FT /evidence="ECO:0000269|Ref.4"
FT CHAIN 20..117
FT /note="Immunoglobulin heavy variable 1-2"
FT /evidence="ECO:0000269|Ref.4"
FT /id="PRO_0000015245"
FT DOMAIN 20..>117
FT /note="Ig-like"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00114"
FT MOD_RES 20
FT /note="Pyrrolidone carboxylic acid"
FT /evidence="ECO:0000269|Ref.4"
FT DISULFID 41..115
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00114,
FT ECO:0000269|PubMed:17947238, ECO:0007744|PDB:1WT5"
FT VARIANT 69
FT /note="W -> R (in IMGT allele IGHV1-2*01)"
FT /evidence="ECO:0000269|PubMed:2841108,
FT ECO:0000269|PubMed:7681398"
FT /id="VAR_076173"
FT VARIANT 86
FT /note="W -> R (in IMGT allele IGHV1-2*01)"
FT /evidence="ECO:0000269|PubMed:2841108,
FT ECO:0000269|PubMed:7681398"
FT /id="VAR_076174"
FT VARIANT 89
FT /note="M -> S (in IMGT allele IGHV1-2*01, requires 2
FT nucleotide substitutions)"
FT /evidence="ECO:0000269|PubMed:2841108,
FT ECO:0000269|PubMed:7681398"
FT /id="VAR_076175"
FT VARIANT 111
FT /note="A -> V (in IMGT allele IGHV1-2*01)"
FT /evidence="ECO:0000269|PubMed:2841108,
FT ECO:0000269|PubMed:7681398"
FT /id="VAR_076176"
FT CONFLICT 16..21
FT /note="GAHSQV -> RVHSQT (in Ref. 3)"
FT /evidence="ECO:0000305"
FT CONFLICT 31
FT /note="K -> R (in Ref. 3)"
FT /evidence="ECO:0000305"
FT CONFLICT 38
FT /note="K -> R (in Ref. 3)"
FT /evidence="ECO:0000305"
FT CONFLICT 49..56
FT /note="TGYYMHWV -> IDSYIHWI (in Ref. 4; AA sequence)"
FT /evidence="ECO:0000305"
FT CONFLICT 53..54
FT /note="MH -> HI (in Ref. 4; AA sequence)"
FT /evidence="ECO:0000305"
FT CONFLICT 62
FT /note="Q -> H (in Ref. 3)"
FT /evidence="ECO:0000305"
FT CONFLICT 67..68
FT /note="MG -> GV (in Ref. 4; AA sequence)"
FT /evidence="ECO:0000305"
FT CONFLICT 67
FT /note="M -> V (in Ref. 3)"
FT /evidence="ECO:0000305"
FT CONFLICT 81..82
FT /note="QK -> PR (in Ref. 3)"
FT /evidence="ECO:0000305"
FT CONFLICT 93..95
FT /note="TSI -> ASF (in Ref. 3)"
FT /evidence="ECO:0000305"
FT CONFLICT 101..104
FT /note="ELSR -> DLRS (in Ref. 3)"
FT /evidence="ECO:0000305"
FT CONFLICT 110..117
FT /note="TAVYYCAR -> SAVFYCAK (in Ref. 3)"
FT /evidence="ECO:0000305"
FT NON_TER 117
SQ SEQUENCE 117 AA; 13085 MW; CFCC08BE572F76A8 CRC64;
MDWTWRILFL VAAATGAHSQ VQLVQSGAEV KKPGASVKVS CKASGYTFTG YYMHWVRQAP
GQGLEWMGWI NPNSGGTNYA QKFQGWVTMT RDTSISTAYM ELSRLRSDDT AVYYCAR
