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Overview

Uniprot IDA0M8Q6
Protein NameImmunoglobulin lambda constant 7
Gene NameIGLC7
OrganismHomo sapiens

Kla Sites from experimental identification

Position Flanking peptide
57 KVGVETTKPSKQSNN

Function

Constant region of immunoglobulin light chains. 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)

Protein Sequence

10 GQPKAAPSVT 20 LFPPSSEELQ 30 ANKATLVCLV 40 SDFNPGAVTV 50 AWKADGSPVK 60 VGVETTKPSK 70 QSNNKYAASS 80 YLSLTPEQWK 90 SHRSYSCRVT 100 HEGSTVEKTV APAECS

Gene Ontology

Classification GO ID Description
Cellular Component GO:0005576 extracellular region
Cellular Component GO:0005615 extracellular space
Cellular Component GO:0071735 IgG immunoglobulin complex
Cellular Component GO:0005886 plasma membrane
Molecular Function GO:0003823 antigen binding
Biological Process GO:0002250 adaptive immune response
Biological Process GO:0050853 B cell receptor signaling pathway
Biological Process GO:0016064 immunoglobulin mediated immune response

Reference

[1] Cheng Z, Huang H, Li M, Chen Y. Proteomic analysis identifies PFKP lactylation in SW480 colon cancer cells.. iScience 27(1):108645. 2024 Jan 19. PMID: 38155775.