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KV109_HUMAN
ID   KV109_HUMAN             Reviewed;         117 AA.
AC   A0A0C4DH69;
DT   18-JAN-2017, integrated into UniProtKB/Swiss-Prot.
DT   01-APR-2015, sequence version 1.
DT   03-AUG-2022, entry version 43.
DE   RecName: Full=Immunoglobulin kappa variable 1-9 {ECO:0000303|PubMed:11549845, ECO:0000303|Ref.3};
DE   Flags: Precursor;
GN   Name=IGKV1-9 {ECO:0000303|PubMed:11549845, ECO:0000303|Ref.3};
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 [LARGE SCALE GENOMIC DNA] (IMGT ALLELE IGKV1-9*01).
RX   PubMed=15815621; DOI=10.1038/nature03466;
RA   Hillier L.W., Graves T.A., Fulton R.S., Fulton L.A., Pepin K.H., Minx P.,
RA   Wagner-McPherson C., Layman D., Wylie K., Sekhon M., Becker M.C.,
RA   Fewell G.A., Delehaunty K.D., Miner T.L., Nash W.E., Kremitzki C., Oddy L.,
RA   Du H., Sun H., Bradshaw-Cordum H., Ali J., Carter J., Cordes M., Harris A.,
RA   Isak A., van Brunt A., Nguyen C., Du F., Courtney L., Kalicki J.,
RA   Ozersky P., Abbott S., Armstrong J., Belter E.A., Caruso L., Cedroni M.,
RA   Cotton M., Davidson T., Desai A., Elliott G., Erb T., Fronick C., Gaige T.,
RA   Haakenson W., Haglund K., Holmes A., Harkins R., Kim K., Kruchowski S.S.,
RA   Strong C.M., Grewal N., Goyea E., Hou S., Levy A., Martinka S., Mead K.,
RA   McLellan M.D., Meyer R., Randall-Maher J., Tomlinson C.,
RA   Dauphin-Kohlberg S., Kozlowicz-Reilly A., Shah N., Swearengen-Shahid S.,
RA   Snider J., Strong J.T., Thompson J., Yoakum M., Leonard S., Pearman C.,
RA   Trani L., Radionenko M., Waligorski J.E., Wang C., Rock S.M.,
RA   Tin-Wollam A.-M., Maupin R., Latreille P., Wendl M.C., Yang S.-P., Pohl C.,
RA   Wallis J.W., Spieth J., Bieri T.A., Berkowicz N., Nelson J.O., Osborne J.,
RA   Ding L., Meyer R., Sabo A., Shotland Y., Sinha P., Wohldmann P.E.,
RA   Cook L.L., Hickenbotham M.T., Eldred J., Williams D., Jones T.A., She X.,
RA   Ciccarelli F.D., Izaurralde E., Taylor J., Schmutz J., Myers R.M.,
RA   Cox D.R., Huang X., McPherson J.D., Mardis E.R., Clifton S.W., Warren W.C.,
RA   Chinwalla A.T., Eddy S.R., Marra M.A., Ovcharenko I., Furey T.S.,
RA   Miller W., Eichler E.E., Bork P., Suyama M., Torrents D., Waterston R.H.,
RA   Wilson R.K.;
RT   "Generation and annotation of the DNA sequences of human chromosomes 2 and
RT   4.";
RL   Nature 434:724-731(2005).
RN   [2]
RP   NOMEMCLATURE.
RX   PubMed=11549845; DOI=10.1159/000049195;
RA   Lefranc M.P.;
RT   "Nomenclature of the human immunoglobulin kappa (IGK) genes.";
RL   Exp. Clin. Immunogenet. 18:161-174(2001).
RN   [3]
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   [4]
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   [5]
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   [6]
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   [7]
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).
CC   -!- FUNCTION: V region of the variable domain of immunoglobulin light
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:20176268, PubMed:22158414). 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 IGKV1-9*01.
CC   -!- CAUTION: For an example of a full-length immunoglobulin kappa light
CC       chain see AC P0DOX7. {ECO:0000305}.
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DR   EMBL; AC245015; -; NOT_ANNOTATED_CDS; Genomic_DNA.
DR   AlphaFoldDB; A0A0C4DH69; -.
DR   SMR; A0A0C4DH69; -.
DR   IMGT_GENE-DB; IGKV1-9; -.
DR   BioMuta; IGKV1-9; -.
DR   jPOST; A0A0C4DH69; -.
DR   MassIVE; A0A0C4DH69; -.
DR   PeptideAtlas; A0A0C4DH69; -.
DR   Ensembl; ENST00000493819.1; ENSP00000419598.1; ENSG00000241755.1.
DR   Ensembl; ENST00000633273.1; ENSP00000488384.1; ENSG00000282758.1.
DR   GeneCards; IGKV1-9; -.
DR   HGNC; HGNC:5744; IGKV1-9.
DR   HPA; ENSG00000241755; Tissue enhanced (intestine, lymphoid tissue, stomach).
DR   neXtProt; NX_A0A0C4DH69; -.
DR   OpenTargets; ENSG00000241755; -.
DR   VEuPathDB; HostDB:ENSG00000241755; -.
DR   GeneTree; ENSGT00940000153048; -.
DR   HOGENOM; CLU_077975_4_1_1; -.
DR   OMA; FTCEASE; -.
DR   PhylomeDB; A0A0C4DH69; -.
DR   SignaLink; A0A0C4DH69; -.
DR   Pharos; A0A0C4DH69; Tdark.
DR   PRO; PR:A0A0C4DH69; -.
DR   Proteomes; UP000005640; Chromosome 2.
DR   RNAct; A0A0C4DH69; protein.
DR   Bgee; ENSG00000241755; Expressed in rectum and 88 other tissues.
DR   GO; GO:0005615; C:extracellular space; IBA:GO_Central.
DR   GO; GO:0019814; C:immunoglobulin complex; IEA:UniProtKB-KW.
DR   GO; GO:0005886; C:plasma membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0002250; P:adaptive immune response; IEA:UniProtKB-KW.
DR   GO; GO:0006955; P:immune response; 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; IPR003599; Ig_sub.
DR   InterPro; IPR013106; Ig_V-set.
DR   Pfam; PF07686; V-set; 1.
DR   SMART; SM00409; IG; 1.
DR   SMART; SM00406; IGv; 1.
DR   SUPFAM; SSF48726; SSF48726; 1.
DR   PROSITE; PS50835; IG_LIKE; 1.
PE   3: Inferred from homology;
KW   Adaptive immunity; Cell membrane; Disulfide bond; Immunity; Immunoglobulin;
KW   Immunoglobulin domain; Membrane; Reference proteome; Secreted; Signal.
FT   SIGNAL          1..22
FT                   /evidence="ECO:0000255"
FT   CHAIN           23..117
FT                   /note="Immunoglobulin kappa variable 1-9"
FT                   /evidence="ECO:0000255"
FT                   /id="PRO_5002181442"
FT   DOMAIN          24..>117
FT                   /note="Ig-like"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00114"
FT   DISULFID        45..110
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00114"
FT   NON_TER         117
SQ   SEQUENCE   117 AA;  12715 MW;  E8C03D524517F79C CRC64;
     MDMRVPAQLL GLLLLWLPGA RCDIQLTQSP SFLSASVGDR VTITCRASQG ISSYLAWYQQ
     KPGKAPKLLI YAASTLQSGV PSRFSGSGSG TEFTLTISSL QPEDFATYYC QQLNSYP
 
 
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