KV240_HUMAN
ID KV240_HUMAN Reviewed; 121 AA.
AC A0A087WW87;
DT 18-JAN-2017, integrated into UniProtKB/Swiss-Prot.
DT 18-JAN-2017, sequence version 2.
DT 03-AUG-2022, entry version 48.
DE RecName: Full=Immunoglobulin kappa variable 2-40 {ECO:0000303|PubMed:11549845, ECO:0000303|Ref.3};
DE Flags: Precursor;
GN Name=IGKV2-40 {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 IGKV2-40*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 IGKV2-40*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; AC244255; -; NOT_ANNOTATED_CDS; Genomic_DNA.
DR AlphaFoldDB; A0A087WW87; -.
DR SMR; A0A087WW87; -.
DR IMGT_GENE-DB; IGKV2-40; -.
DR BioMuta; IGKV2-40; -.
DR jPOST; A0A087WW87; -.
DR MassIVE; A0A087WW87; -.
DR Ensembl; ENST00000620613.1; ENSP00000480029.1; ENSG00000273962.2.
DR UCSC; uc061lrf.1; human.
DR GeneCards; IGKV2-40; -.
DR HGNC; HGNC:5789; IGKV2-40.
DR HPA; ENSG00000273962; Tissue enhanced (intestine, urinary bladder).
DR neXtProt; NX_A0A087WW87; -.
DR VEuPathDB; HostDB:ENSG00000273962; -.
DR PhylomeDB; A0A087WW87; -.
DR ChiTaRS; IGKV2-40; human.
DR Pharos; A0A087WW87; Tdark.
DR PRO; PR:A0A087WW87; -.
DR Proteomes; UP000005640; Chromosome 2.
DR RNAct; A0A087WW87; protein.
DR Bgee; ENSG00000273962; Expressed in spleen and 78 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; 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 3: Inferred from homology;
KW Adaptive immunity; Cell membrane; Disulfide bond; Immunity; Immunoglobulin;
KW Immunoglobulin domain; Membrane; Reference proteome; Secreted; Signal.
FT SIGNAL 1..19
FT /evidence="ECO:0000255"
FT CHAIN 20..121
FT /note="Immunoglobulin kappa variable 2-40"
FT /evidence="ECO:0000255"
FT /id="PRO_0000438683"
FT DOMAIN 20..>121
FT /note="Ig-like"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00114"
FT DISULFID 43..114
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00114"
FT NON_TER 121
SQ SEQUENCE 121 AA; 13310 MW; F0209591EAD58DA0 CRC64;
MRLPAQLLGL LMLWVPGSSE DIVMTQTPLS LPVTPGEPAS ISCRSSQSLL DSDDGNTYLD
WYLQKPGQSP QLLIYTLSYR ASGVPDRFSG SGSGTDFTLK ISRVEAEDVG VYYCMQRIEF
P
