関: c-src gene、c-src proto-oncogene、src oncogene、v-src gene、v-src oncogene

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(genetics) a segment of DNA that is involved in producing a polypeptide chain; it can include regions preceding and following the coding DNA as well as introns between the exons; it is considered a unit of heredity; "genes were formerly called factors" (同)cistron, factor
informal term for information; "give me the gen on your new line of computers"

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遺伝子

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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2017/07/27 14:53:08」(JST)

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Tyrosine-protein kinase CSK also known as C-terminal Src kinase is an enzyme that, in humans, is encoded by the CSK gene.^[3] This enzyme phosphorylates tyrosine residues located in the C-terminal end of Src-family kinases (SFKs) including SRC, HCK, FYN, LCK, LYN and YES1.^[4]^[5]

Function

This Non-receptor tyrosine-protein kinase plays an important role in the regulation of cell growth, differentiation, migration and immune response. CSK acts by suppressing the activity of the Src family of protein kinases by phosphorylation of Src family members at a conserved C-terminal tail site in Src.^[6]^[7]^[8]^[9] Upon phosphorylation by other kinases, Src-family members engage in intramolecular interactions between the phosphotyrosine tail and the SH2 domain that result in an inactive conformation. To inhibit SFKs, CSK is then recruited to the plasma membrane via binding to transmembrane proteins or adapter proteins located near the plasma membrane and ultimately suppresses signaling through various surface receptors, including T-cell receptor (TCR) and B-cell receptor (BCR) by phosphorylating and maintaining inactive several effector molecules.^[4]^[5]

Role in development and regulation

Tyrosine-protein kinase CSK is involved in the following developmental, metabolic, and signal transduction cascades:

Adherens junction organization, blood coagulation, brain development, cell differentiation, cell migration, cellular response to peptide hormone stimulus, central nervous system development, epidermal growth factor receptor signaling pathway, innate immune response, epithelium morphogenesis, regulation of bone resorption, negative regulation of cell proliferation, negative regulation of ERK1 and ERK2 cascade, negative regulation of Golgi to plasma membrane protein transport, negative regulation of interleukin-6 production, negative regulation of kinase activity, negative regulation of low-density lipoprotein particle clearance, negative regulation of phagocytosis, dendrocyte differentiation, peptidyl-tyrosine autophosphorylation, platelet activation, positive regulation of MAP kinase activity, regulation of cell proliferation, regulation of cytokine production, regulation of Fc receptor mediated stimulatory signaling pathway, T cell costimulation, T cell receptor signaling pathway.^[10]

Expression and subcellular location

CSK is expressed in the lungs and macrophages as well as several other tissues.^[11] Tyrosine-Kinase CSK is mainly present in the cytoplasm, but also found in lipid rafts making cell-cell junction.^[10]

Mutations

Y184F – Abolishes phosphorylation.^[12]
Y304F – Decreases activity by two-thirds and alters conformation.^[12]
S364A – Strong decrease of phosphorylation by PRKACA (the catalytic subunit of protein kinase A).^[13]

Clinical significance

Csk's interaction with a phosphatase ("Lyp", gene product of PTPN22) is possibly associated with the increased autoimmune diseases associated with PTPN22 mutations.^[14]

References

^ "Human PubMed Reference:".
^ "Mouse PubMed Reference:".
^ "Entrez Gene: C-src tyrosine kinase". Retrieved 2013-07-11.
^ ^a ^b Bergman M, Mustelin T, Oetken C, Partanen J, Flint NA, Amrein KE, Autero M, Burn P, Alitalo K (Aug 1992). "The human p50csk tyrosine kinase phosphorylates p56lck at Tyr-505 and down regulates its catalytic activity". The EMBO Journal. 11 (8): 2919–24. PMC 556773 . PMID 1639064.
^ ^a ^b Sun G, Budde RJ (Sep 1997). "Expression, purification, and initial characterization of human Yes protein tyrosine kinase from a bacterial expression system". Archives of Biochemistry and Biophysics. 345 (1): 135–42. PMID 9281320. doi:10.1006/abbi.1997.0236.
^ Nada S, Okada M, MacAuley A, Cooper JA, Nakagawa H (May 1991). "Cloning of a complementary DNA for a protein-tyrosine kinase that specifically phosphorylates a negative regulatory site of p60c-src". Nature. 351 (6321): 69–72. Bibcode:1991Natur.351...69N. PMID 1709258. doi:10.1038/351069a0.
^ Nada S, Yagi T, Takeda H, Tokunaga T, Nakagawa H, Ikawa Y, Okada M, Aizawa S (Jun 1993). "Constitutive activation of Src family kinases in mouse embryos that lack Csk". Cell. 73 (6): 1125–35. PMID 8513497. doi:10.1016/0092-8674(93)90642-4.
^ Chong YP, Chan AS, Chan KC, Williamson NA, Lerner EC, Smithgall TE, Bjorge JD, Fujita DJ, Purcell AW, Scholz G, Mulhern TD, Cheng HC (Nov 2006). "C-terminal Src kinase-homologous kinase (CHK), a unique inhibitor inactivating multiple active conformations of Src family tyrosine kinases". The Journal of Biological Chemistry. 281 (44): 32988–99. PMID 16959780. doi:10.1074/jbc.M602951200.
^ Chong YP, Mulhern TD, Cheng HC (Sep 2005). "C-terminal Src kinase (CSK) and CSK-homologous kinase (CHK)--endogenous negative regulators of Src-family protein kinases". Growth Factors. 23 (3): 233–44. PMID 16243715. doi:10.1080/08977190500178877.
^ ^a ^b Universal protein resource accession number P41240 for "Tyrosine-protein kinase CSK" at UniProt.
^ Bräuninger A, Holtrich U, Strebhardt K, Rübsamen-Waigmann H (Jan 1992). "Isolation and characterization of a human gene that encodes a new subclass of protein tyrosine kinases". Gene. 110 (2): 205–11. PMID 1371489. doi:10.1016/0378-1119(92)90649-a.
^ ^a ^b Joukov V, Vihinen M, Vainikka S, Sowadski JM, Alitalo K, Bergman M (Mar 1997). "Identification of csk tyrosine phosphorylation sites and a tyrosine residue important for kinase domain structure". The Biochemical Journal. 322 (3): 927–35. PMC 1218276 . PMID 9148770. doi:10.1042/bj3220927.
^ Vang T, Torgersen KM, Sundvold V, Saxena M, Levy FO, Skålhegg BS, Hansson V, Mustelin T, Taskén K (Feb 2001). "Activation of the COOH-terminal Src kinase (Csk) by cAMP-dependent protein kinase inhibits signaling through the T cell receptor". The Journal of Experimental Medicine. 193 (4): 497–507. PMC 2195911 . PMID 11181701. doi:10.1084/jem.193.4.497.
^ Fiorillo E, Orrú V, Stanford SM, Liu Y, Salek M, Rapini N, Schenone AD, Saccucci P, Delogu LG, Angelini F, Manca Bitti ML, Schmedt C, Chan AC, Acuto O, Bottini N (Aug 2010). "Autoimmune-associated PTPN22 R620W variation reduces phosphorylation of lymphoid phosphatase on an inhibitory tyrosine residue". The Journal of Biological Chemistry. 285 (34): 26506–18. PMC 2924087 . PMID 20538612. doi:10.1074/jbc.M110.111104.

External links

CSK tyrosine-protein kinase at the US National Library of Medicine Medical Subject Headings (MeSH)

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★リンクテーブル★

リンク元	「src遺伝子」
拡張検索	「c-src gene」「v-src gene」

「src遺伝子」

CSK
Available structures
PDB	Ortholog search: PDBe RCSB
List of PDB id codes
	1BYG, 1CSK, 3D7T, 3D7U, 3EAC, 3EAZ
Identifiers
Aliases	CSK, Src, c-src tyrosine kinase, CSK/Src, non-receptor tyrosine kinase, C-terminal Src kinase
External IDs	MGI: 88537 HomoloGene: 55818 GeneCards: CSK
Gene ontology
Molecular function	• transferase activity; • nucleotide binding; • protein kinase activity; • protein kinase A catalytic subunit binding; • non-membrane spanning protein tyrosine kinase activity; • metal ion binding; • protein C-terminus binding; • protein binding; • identical protein binding; • protein tyrosine kinase activity; • protein phosphatase binding; • proline-rich region binding; • receptor binding; • ATP binding; • kinase activity;
Cellular component	• cytoplasm; • cytosol; • membrane; • cell-cell junction; • extrinsic component of cytoplasmic side of plasma membrane; • plasma membrane; • membrane raft; • extracellular exosome;
Biological process	• cell differentiation; • adaptive immune response; • positive regulation of MAP kinase activity; • epidermal growth factor receptor signaling pathway; • negative regulation of phagocytosis; • phosphorylation; • transmembrane receptor protein tyrosine kinase signaling pathway; • negative regulation of low-density lipoprotein particle clearance; • immune system process; • negative regulation of interleukin-6 production; • T cell costimulation; • oligodendrocyte differentiation; • negative regulation of Golgi to plasma membrane protein transport; • regulation of Fc receptor mediated stimulatory signaling pathway; • regulation of cytokine production; • protein phosphorylation; • brain development; • cellular response to peptide hormone stimulus; • regulation of cell proliferation; • peptidyl-tyrosine autophosphorylation; • negative regulation of ERK1 and ERK2 cascade; • protein autophosphorylation; • innate immune response; • adherens junction organization; • T cell receptor signaling pathway; • negative regulation of cell proliferation; • negative regulation of bone resorption; • negative regulation of kinase activity; • central nervous system development; • peptidyl-tyrosine phosphorylation;
	Sources:Amigo / QuickGO
RNA expression pattern
	More reference expression data
Orthologs
	1445
	12988
	ENSG00000103653
	ENSMUSG00000032312
	P41240
	P41241
	NM_001127190; NM_004383
	NM_007783; NM_001304761
	NP_001120662; NP_004374
	NP_001291690; NP_031809
	Wikidata
View/Edit Human	View/Edit Mouse

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英: src gene
関: src癌遺伝子、v-src遺伝子、v-src癌遺伝子、c-src遺伝子、c-src癌原遺伝子

「c-src gene」

　　[★]

c-src遺伝子

関: c-src proto-oncogene、src gene、src oncogene、v-src gene、v-src oncogene

「v-src gene」

　　[★]

v-src遺伝子

関: c-src gene、c-src proto-oncogene、src gene、src oncogene、v-src oncogene

[1] "Human PubMed Reference:".

[2] "Mouse PubMed Reference:".

[entrez-3] "Entrez Gene: C-src tyrosine kinase". Retrieved 2013-07-11.

[pmid1639064-4] Bergman M, Mustelin T, Oetken C, Partanen J, Flint NA, Amrein KE, Autero M, Burn P, Alitalo K (Aug 1992). "The human p50csk tyrosine kinase phosphorylates p56lck at Tyr-505 and down regulates its catalytic activity". The EMBO Journal. 11 (8): 2919–24. PMC 556773 . PMID 1639064.

[pmid9281320-5] Sun G, Budde RJ (Sep 1997). "Expression, purification, and initial characterization of human Yes protein tyrosine kinase from a bacterial expression system". Archives of Biochemistry and Biophysics. 345 (1): 135–42. PMID 9281320. doi:10.1006/abbi.1997.0236.

[pmid1709258-6] Nada S, Okada M, MacAuley A, Cooper JA, Nakagawa H (May 1991). "Cloning of a complementary DNA for a protein-tyrosine kinase that specifically phosphorylates a negative regulatory site of p60c-src". Nature. 351 (6321): 69–72. Bibcode:1991Natur.351...69N. PMID 1709258. doi:10.1038/351069a0.

[pmid8513497-7] Nada S, Yagi T, Takeda H, Tokunaga T, Nakagawa H, Ikawa Y, Okada M, Aizawa S (Jun 1993). "Constitutive activation of Src family kinases in mouse embryos that lack Csk". Cell. 73 (6): 1125–35. PMID 8513497. doi:10.1016/0092-8674(93)90642-4.

[pmid16959780-8] Chong YP, Chan AS, Chan KC, Williamson NA, Lerner EC, Smithgall TE, Bjorge JD, Fujita DJ, Purcell AW, Scholz G, Mulhern TD, Cheng HC (Nov 2006). "C-terminal Src kinase-homologous kinase (CHK), a unique inhibitor inactivating multiple active conformations of Src family tyrosine kinases". The Journal of Biological Chemistry. 281 (44): 32988–99. PMID 16959780. doi:10.1074/jbc.M602951200.

[pmid16243715-9] Chong YP, Mulhern TD, Cheng HC (Sep 2005). "C-terminal Src kinase (CSK) and CSK-homologous kinase (CHK)--endogenous negative regulators of Src-family protein kinases". Growth Factors. 23 (3): 233–44. PMID 16243715. doi:10.1080/08977190500178877.

[UniProt_P41240-10] Universal protein resource accession number P41240 for "Tyrosine-protein kinase CSK" at UniProt.

[pmid1371489-11] Bräuninger A, Holtrich U, Strebhardt K, Rübsamen-Waigmann H (Jan 1992). "Isolation and characterization of a human gene that encodes a new subclass of protein tyrosine kinases". Gene. 110 (2): 205–11. PMID 1371489. doi:10.1016/0378-1119(92)90649-a.

[Joukov_1997-12] Joukov V, Vihinen M, Vainikka S, Sowadski JM, Alitalo K, Bergman M (Mar 1997). "Identification of csk tyrosine phosphorylation sites and a tyrosine residue important for kinase domain structure". The Biochemical Journal. 322 (3): 927–35. PMC 1218276 . PMID 9148770. doi:10.1042/bj3220927.

[pmid11181701-13] Vang T, Torgersen KM, Sundvold V, Saxena M, Levy FO, Skålhegg BS, Hansson V, Mustelin T, Taskén K (Feb 2001). "Activation of the COOH-terminal Src kinase (Csk) by cAMP-dependent protein kinase inhibits signaling through the T cell receptor". The Journal of Experimental Medicine. 193 (4): 497–507. PMC 2195911 . PMID 11181701. doi:10.1084/jem.193.4.497.

[pmid20538612-14] Fiorillo E, Orrú V, Stanford SM, Liu Y, Salek M, Rapini N, Schenone AD, Saccucci P, Delogu LG, Angelini F, Manca Bitti ML, Schmedt C, Chan AC, Acuto O, Bottini N (Aug 2010). "Autoimmune-associated PTPN22 R620W variation reduces phosphorylation of lymphoid phosphatase on an inhibitory tyrosine residue". The Journal of Biological Chemistry. 285 (34): 26506–18. PMC 2924087 . PMID 20538612. doi:10.1074/jbc.M110.111104.

v t e Enzymes
Activity	Active site Binding site Catalytic triad Oxyanion hole Enzyme promiscuity Catalytically perfect enzyme Coenzyme Cofactor Enzyme catalysis
Regulation	Allosteric regulation Cooperativity Enzyme inhibitor
Classification	EC number Enzyme superfamily Enzyme family List of enzymes
Kinetics	Enzyme kinetics Eadie–Hofstee diagram Hanes–Woolf plot Lineweaver–Burk plot Michaelis–Menten kinetics
Types	EC1 Oxidoreductases (list) EC2 Transferases (list) EC3 Hydrolases (list) EC4 Lyases (list) EC5 Isomerases (list) EC6 Ligases (list)

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src gene