LCK Gene Summary [Human]

This gene is a member of the Src family of protein tyrosine kinases (PTKs). The encoded protein is a key signaling molecule in the selection and maturation of developing T-cells. It contains N-terminal sites for myristylation and palmitylation, a PTK domain, and SH2 and SH3 domains which are involved in mediating protein-protein interactions with phosphotyrosine-containing and proline-rich motifs, respectively. The protein localizes to the plasma membrane and pericentrosomal vesicles, and binds to cell surface receptors, including CD4 and CD8, and other signaling molecules. Multiple alternatively spliced variants encoding different isoforms have been described. [provided by RefSeq, Aug 2016]

Details

Type
Protein Coding
Official Symbol
LCK
Official Name
LCK proto-oncogene, Src family tyrosine kinase [Source:HGNC Symbol;Acc:HGNC:6524]
Ensembl ID
ENSG00000182866
Bio databases IDs NCBI: 3932 Ensembl: ENSG00000182866
Aliases LCK proto-oncogene, Src family tyrosine kinase
Synonyms Hck-3, IMD22, Lck1, LCK proto-oncogene, Src family tyrosine kinase, Lcktkr, LSK, Lskt, lymphocyte protein tyrosine kinase, p56-LCK, pp58lck, YT16
Species
Human, Homo sapiens
OrthologiesMouseRat

Protein Domains

A protein domain is a distinct structural or functional region within a protein that can evolve, function, and exist independently of the rest of the protein chain. These domains in human LCK often fold into stable, three-dimensional structures and are associated with specific biological functions, such as binding to DNA, other proteins, or small molecules.
  • regulatory domain
  • ATP-binding domain
  • T-cell receptor binding
  • protein-tyrosine kinase
  • Protein kinase domain
  • unique protein domain
  • phospholipase activator
  • identical protein binding
  • activation loop
  • myristoylation sequence
  • CD8 receptor binding
  • serine phosphorylation site
  • Src homology 2 (SH2) domain
  • SH1 domain
  • Tyrosine kinase, catalytic domain
  • membrane targeting signal
  • SH4 domain
  • palmitoylation site
  • Protein kinase (unclassified specificity)
  • protein kinase binding
  • Protein tyrosine and serine/threonine kinase
  • catalytic domain
  • SH2-domain binding
  • lipid raft association site
  • protein phosphatase binding
  • enzyme binding
  • Tyrosine autophosphorylation site
  • antigen binding
  • linker domain
  • phosphotyrosine binding
  • non-membrane spanning protein tyrosine kinase
  • protein binding
  • CD4 receptor binding
  • phosphorylation site
  • Src Homology 3 domain superfamily
  • kinase
  • Serine/Threonine protein kinases, catalytic domain
  • kinase domain
  • ATPase binding
  • phosphoinositide 3-kinase binding
  • binding protein
  • Protein Kinases, catalytic domain
  • tyrosine kinase domain
  • modulatory domain
  • tyrosine phosphorylation site

Top Findings

The most significant associations for this gene, including commonly observed domains, pathway involvement, and functional highlights based on current data.
disease
  • cancer
  • non-small cell lung carcinoma
  • epithelial neoplasia
  • metastatic non-small cell lung cancer
  • severe combined immunodeficiency
  • obesity
  • severe acute respiratory syndrome
  • insulin-dependent diabetes mellitus
  • cutaneous melanoma
  • precursor B-cell acute lymphoblastic leukemia
regulated by
  • LDL
  • lipopolysaccharide
  • adenosine triphosphate
  • IL2
  • CBL
  • APC
  • PTPRC
  • geldanamycin
  • sodium orthovanadate
  • CTNNB1
role in cell
  • expression in
  • number
  • survival
  • production in
  • phosphorylation in
  • migration
  • commitment
  • differentiation
  • binding in
  • apoptosis

Subcellular Expression

Locations within the cell where the protein is known or predicted to be active, providing insight into its function and cellular context.
  • Cytoplasm
  • raft fractions
  • soluble fraction
  • detergent-insoluble fractions
  • membrane fraction
  • endosomal membrane fractions
  • glutaminergic synapse
  • organelle
  • cell surface
  • cell periphery
  • intracellular space
  • perinuclear region
  • cellular membrane
  • Golgi apparatus component
  • cell cortex
  • Plasma Membrane
  • vesicles
  • centrosome
  • membrane compartment
  • intercellular junctions
  • immunological synapses
  • cytosol
  • microdomains
  • recycling endosomes
  • endocytotic vesicle
  • membrane rafts
  • membrane processes
  • perikaryon
  • detergent-soluble fraction
  • cytosolic fraction

Gene Ontology Annotations

Describes the biological processes, cellular components, and molecular functions associated with the human LCK gene, providing context for its role in the cell.

Biological Process

Functions and activities the gene product is involved in
  • peptidyl-tyrosine phosphorylation
  • T cell costimulation
  • hemopoiesis
  • cellular zinc ion homeostasis
  • transmembrane receptor protein tyrosine kinase signaling pathway
  • peptidyl-tyrosine autophosphorylation
  • Fc-gamma receptor signaling pathway
  • response to xenobiotic stimulus
  • protein phosphorylation
  • T cell differentiation
  • positive regulation of T cell receptor signaling pathway
  • positive regulation of T cell activation
  • innate immune response
  • positive regulation of heterotypic cell-cell adhesion
  • leukocyte migration
  • activation of cysteine-type endopeptidase activity involved in apoptotic process
  • release of sequestered calcium ion into cytosol
  • positive regulation of intrinsic apoptotic signaling pathway
  • platelet activation
  • intracellular signal transduction
  • T cell receptor signaling pathway
  • B cell receptor signaling pathway
  • regulation of lymphocyte activation

Cellular Component

Where in the cell the gene product is active
  • pericentriolar material
  • extracellular vesicular exosome
  • membrane raft
  • cytosol
  • plasma membrane
  • immunological synapse

Molecular Function

What the gene product does at the molecular level
  • phosphatidylinositol 3-kinase binding
  • protein kinase binding
  • identical protein binding
  • protein phosphatase binding
  • T cell receptor binding
  • CD4 receptor binding
  • SH2 domain binding
  • receptor binding
  • CD8 receptor binding
  • phosphotyrosine binding
  • protein serine/threonine phosphatase activity
  • ATP binding
  • protein tyrosine kinase activity
  • protein binding
  • non-membrane spanning protein tyrosine kinase activity
  • phospholipase binding
  • phospholipase activator activity
  • ATPase binding

Gene-Specific Assays for Results You Can Trust

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