Homo sapiens Protein: MAPK3
Summary
InnateDB Protein IDBP-240038.6
Last Modified 2014-10-13 [Report errors or provide feedback]
Gene Symbol MAPK3
Protein Name mitogen-activated protein kinase 3
Synonyms ERK-1; ERK1; ERT2; HS44KDAP; HUMKER1A; p44-ERK1; p44-MAPK; P44ERK1; P44MAPK; PRKM3;
Species Homo sapiens
Ensembl Protein ENSP00000378625
InnateDB Gene IDBG-25745 (MAPK3)
Protein Structure
UniProt Annotation
Function Serine/threonine kinase which acts as an essential component of the MAP kinase signal transduction pathway. MAPK1/ERK2 and MAPK3/ERK1 are the 2 MAPKs which play an important role in the MAPK/ERK cascade. They participate also in a signaling cascade initiated by activated KIT and KITLG/SCF. Depending on the cellular context, the MAPK/ERK cascade mediates diverse biological functions such as cell growth, adhesion, survival and differentiation through the regulation of transcription, translation, cytoskeletal rearrangements. The MAPK/ERK cascade plays also a role in initiation and regulation of meiosis, mitosis, and postmitotic functions in differentiated cells by phosphorylating a number of transcription factors. About 160 substrates have already been discovered for ERKs. Many of these substrates are localized in the nucleus, and seem to participate in the regulation of transcription upon stimulation. However, other substrates are found in the cytosol as well as in other cellular organelles, and those are responsible for processes such as translation, mitosis and apoptosis. Moreover, the MAPK/ERK cascade is also involved in the regulation of the endosomal dynamics, including lysosome processing and endosome cycling through the perinuclear recycling compartment (PNRC); as well as in the fragmentation of the Golgi apparatus during mitosis. The substrates include transcription factors (such as ATF2, BCL6, ELK1, ERF, FOS, HSF4 or SPZ1), cytoskeletal elements (such as CANX, CTTN, GJA1, MAP2, MAPT, PXN, SORBS3 or STMN1), regulators of apoptosis (such as BAD, BTG2, CASP9, DAPK1, IER3, MCL1 or PPARG), regulators of translation (such as EIF4EBP1) and a variety of other signaling-related molecules (like ARHGEF2, FRS2 or GRB10). Protein kinases (such as RAF1, RPS6KA1/RSK1, RPS6KA3/RSK2, RPS6KA2/RSK3, RPS6KA6/RSK4, SYK, MKNK1/MNK1, MKNK2/MNK2, RPS6KA5/MSK1, RPS6KA4/MSK2, MAPKAPK3 or MAPKAPK5) and phosphatases (such as DUSP1, DUSP4, DUSP6 or DUSP16) are other substrates which enable the propagation the MAPK/ERK signal to additional cytosolic and nuclear targets, thereby extending the specificity of the cascade. {ECO:0000269PubMed:10393181, ECO:0000269PubMed:10617468, ECO:0000269PubMed:12110590, ECO:0000269PubMed:12356731, ECO:0000269PubMed:12974390, ECO:0000269PubMed:15788397, ECO:0000269PubMed:15952796, ECO:0000269PubMed:16581800, ECO:0000269PubMed:19265199, ECO:0000269PubMed:8325880, ECO:0000269PubMed:9155018, ECO:0000269PubMed:9480836}.
Subcellular Localization Cytoplasm. Nucleus. Note=Autophosphorylation at Thr-207 promotes nuclear localization.
Disease Associations
Tissue Specificity
Comments
Interactions
Number of Interactions This gene and/or its encoded proteins are associated with 238 experimentally validated interaction(s) in this database.
Experimentally validated
Total 238 [view]
Protein-Protein 236 [view]
Protein-DNA 1 [view]
Protein-RNA 0
DNA-DNA 1 [view]
RNA-RNA 0
DNA-RNA 0
Gene Ontology

Molecular Function
Accession GO Term
GO:0004672 protein kinase activity
GO:0004707 MAP kinase activity
GO:0004713 protein tyrosine kinase activity
GO:0005515 protein binding
GO:0005524 ATP binding
GO:0016772 transferase activity, transferring phosphorus-containing groups
GO:0019902 phosphatase binding
Biological Process
GO:0000165 MAPK cascade
GO:0000186 activation of MAPKK activity
GO:0000187 activation of MAPK activity
GO:0001934 positive regulation of protein phosphorylation
GO:0002224 toll-like receptor signaling pathway
GO:0002755 MyD88-dependent toll-like receptor signaling pathway
GO:0002756 MyD88-independent toll-like receptor signaling pathway
GO:0006360 transcription from RNA polymerase I promoter
GO:0006361 transcription initiation from RNA polymerase I promoter
GO:0006468 protein phosphorylation
GO:0006915 apoptotic process
GO:0006975 DNA damage induced protein phosphorylation
GO:0007049 cell cycle
GO:0007173 epidermal growth factor receptor signaling pathway
GO:0007264 small GTPase mediated signal transduction
GO:0007265 Ras protein signal transduction
GO:0007411 axon guidance
GO:0007596 blood coagulation
GO:0008286 insulin receptor signaling pathway
GO:0008543 fibroblast growth factor receptor signaling pathway
GO:0010467 gene expression
GO:0016032 viral process
GO:0016310 phosphorylation
GO:0019221 cytokine-mediated signaling pathway
GO:0030168 platelet activation
GO:0030509 BMP signaling pathway
GO:0032872 regulation of stress-activated MAPK cascade
GO:0033129 positive regulation of histone phosphorylation
GO:0034134 toll-like receptor 2 signaling pathway
GO:0034138 toll-like receptor 3 signaling pathway
GO:0034142 toll-like receptor 4 signaling pathway
GO:0034146 toll-like receptor 5 signaling pathway
GO:0034162 toll-like receptor 9 signaling pathway
GO:0034166 toll-like receptor 10 signaling pathway
GO:0035066 positive regulation of histone acetylation
GO:0035666 TRIF-dependent toll-like receptor signaling pathway
GO:0038083 peptidyl-tyrosine autophosphorylation
GO:0038095 Fc-epsilon receptor signaling pathway
GO:0038096 Fc-gamma receptor signaling pathway involved in phagocytosis
GO:0038123 toll-like receptor TLR1:TLR2 signaling pathway
GO:0038124 toll-like receptor TLR6:TLR2 signaling pathway
GO:0045087 innate immune response
GO:0045944 positive regulation of transcription from RNA polymerase II promoter
GO:0048011 neurotrophin TRK receptor signaling pathway
GO:0051090 regulation of sequence-specific DNA binding transcription factor activity
GO:0051403 stress-activated MAPK cascade
GO:0051493 regulation of cytoskeleton organization
GO:0060397 JAK-STAT cascade involved in growth hormone signaling pathway
GO:0070374 positive regulation of ERK1 and ERK2 cascade
GO:0070498 interleukin-1-mediated signaling pathway
GO:0070849 response to epidermal growth factor
GO:0071260 cellular response to mechanical stimulus
GO:0072584 caveolin-mediated endocytosis
GO:0090170 regulation of Golgi inheritance
GO:2000641 regulation of early endosome to late endosome transport
Cellular Component
GO:0005634 nucleus
GO:0005654 nucleoplasm
GO:0005739 mitochondrion
GO:0005769 early endosome
GO:0005770 late endosome
GO:0005794 Golgi apparatus
GO:0005829 cytosol
GO:0005856 cytoskeleton
GO:0005901 caveola
GO:0005925 focal adhesion
GO:0015630 microtubule cytoskeleton
GO:0070062 extracellular vesicular exosome
Protein Structure and Domains
PDB ID
InterPro IPR000719 Protein kinase domain
IPR001245 Serine-threonine/tyrosine-protein kinase catalytic domain
IPR002290 Serine/threonine/dual specificity protein kinase, catalytic domain
IPR008349 Mitogen-activated protein (MAP) kinase, ERK1/2
IPR008350 Mitogen-activated protein (MAP) kinase, ERK3/4
IPR011009 Protein kinase-like domain
IPR020635 Tyrosine-protein kinase, catalytic domain
PFAM PF00069
PF07714
PRINTS PR00109
PR01770
PR01771
PIRSF
SMART SM00220
SM00219
TIGRFAMs
Post-translational Modifications
Modification
Cross-References
SwissProt P27361
PhosphoSite PhosphoSite-P27361
TrEMBL H0YDH9
UniProt Splice Variant
Entrez Gene 5595
UniGene Hs.861
RefSeq NP_001035145
HUGO HGNC:6877
OMIM 601795
CCDS CCDS42149
HPRD 03479
IMGT
EMBL AC012645 AY033607 BC013992 CH471238 DQ399291 EU332853 M84490 X60188 Z11696
GenPept AAA36142 AAH13992 AAK52329 ABD60302 ABY87542 CAA42744 CAA77754 EAW79912 EAW79915