MAPKAPK3

MAPKAPK3
Proteína quinasa 3 activada por MAP quinasas
HUGO 6888
Símbolo MAPKAPK3
Símbolos alt. 3PK, MAPKAP3
Datos genéticos
Locus Cr. 3 p21.31
Bases de datos
Entrez 7867
OMIM 602130
RefSeq NP_004626
UniProt Q16644

La proteína quinasa 3 activada por MAP quinasas (MAPKAPK3) es una enzima codificada en humanos por el gen MAPKAPK3.[1] [2] [3]

Esta proteína pertenece a la familia de las serina/treonina quinasas. MAPKAPK3 actúa como una MAP quinasa activada por quinasas. Las MAP quinasas también actúan como quinasas reguladoras de señales extracelulares (ERKs), siendo así punto de integración de numerosas señales bioquímicas. MAPKAPK3 parece ser activada por inductores de crecimiento y estímulos de estrés en la célula. Estudios in vitro han demostrado que ERK, la MAP quinasa p38 y la quinasa c-Jun N-terminal son capaces de fosforilar y activar a esta quinasa, lo que sugiere un papel de elemento integrador de la señalización tanto en la respuesta a mitosis como a estrés. Esta quinasa interacciona, fosforila y reprime la actividad de E47, un factor de transcripción con un dominio hélice-bucle-hélice implicado en la regulación de la expresión génica específica de tejido y en la diferenciación celular.[3]

Interacciones

La proteína MAPKAPK2 ha demostrado ser capaz de interaccionar con:

Referencias

  1. McLaughlin MM, Kumar S, McDonnell PC, Van Horn S, Lee JC, Livi GP, Young PR (Jun 1996). «Identification of mitogen-activated protein (MAP) kinase-activated protein kinase-3, a novel substrate of CSBP p38 MAP kinase». J Biol Chem 271 (14):  pp. 8488–92. PMID 8626550. 
  2. Sithanandam G, Latif F, Duh FM, Bernal R, Smola U, Li H, Kuzmin I, Wixler V, Geil L, Shrestha S (Jun 1996). «3pK, a new mitogen-activated protein kinase-activated protein kinase located in the small cell lung cancer tumor suppressor gene region». Mol Cell Biol 16 (3):  pp. 868–76. PMID 8622688. 
  3. a b «Entrez Gene: MAPKAPK3 mitogen-activated protein kinase-activated protein kinase 3».
  4. Tanoue, T; Maeda R, Adachi M, Nishida E (Feb. 2001). «Identification of a docking groove on ERK and p38 MAP kinases that regulates the specificity of docking interactions». EMBO J. (England) 20 (3):  pp. 466–79. doi:10.1093/emboj/20.3.466. ISSN 0261-4189. PMID 11157753. 
  5. Neufeld, B; Grosse-Wilde A, Hoffmeyer A, Jordan B W, Chen P, Dinev D, Ludwig S, Rapp U R (Jul. 2000). «Serine/Threonine kinases 3pK and MAPK-activated protein kinase 2 interact with the basic helix-loop-helix transcription factor E47 and repress its transcriptional activity». J. Biol. Chem. (UNITED STATES) 275 (27):  pp. 20239–42. doi:10.1074/jbc.C901040199. ISSN 0021-9258. PMID 10781029. 

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