Q61161 (M4K2_MOUSE) Reviewed, UniProtKB/Swiss-Prot
Last modified
May 1, 2013.
Version 109.
History...
Names·Attributes·General annotation·Ontologies·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize order
Names·Attributes·General annotation·Ontologies·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize orderNames and origin
| Protein names | Recommended name: Mitogen-activated protein kinase kinase kinase kinase 2 EC=2.7.11.1 Alternative name(s): Germinal center kinase Short name=GCK MAPK/ERK kinase kinase kinase 2 Short name=MEK kinase kinase 2 Short name=MEKKK 2 Rab8-interacting protein | ||||
| Gene names |
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| Organism | Mus musculus (Mouse) [Reference proteome] | ||||
| Taxonomic identifier | 10090 [NCBI] | ||||
| Taxonomic lineage | Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Glires › Rodentia › Sciurognathi › Muroidea › Muridae › Murinae › Mus › Mus![]() |
Protein attributes
| Sequence length | 821 AA. |
| Sequence status | Complete. |
| Protein existence | Evidence at protein level |
General annotation (Comments)
| Function | Serine/threonine-protein kinase which acts as an essential component of the MAP kinase signal transduction pathway. Acts as a MAPK kinase kinase kinase (MAP4K) and is an upstream activator of the stress-activated protein kinase/c-Jun N-terminal kinase (SAP/JNK) signaling pathway and to a lesser extend of the p38 MAPKs signaling pathway. Required for the efficient activation of JNKs by TRAF6-dependent stimuli, including pathogen-associated molecular patterns (PAMPs) such as polyinosine-polycytidine (poly(IC)), lipopolysaccharides (LPS), lipid A, peptidoglycan (PGN),or bacterial flagellin. To a lesser degree, IL-1 and engagement of CD40 also stimulate MAP4K2-mediated JNKs activation. The requirement for MAP4K2/GCK is most pronounced for LPS signaling, and extends to LPS stimulation of c-Jun phosphorylation and induction of IL-8. Enhances MAP3K1 oligomerization, which may relieve N-terminal mediated MAP3K1 autoinhibition and lead to activation following autophosphorylation. Mediates also the SAP/JNK signaling pathway and the p38 MAPKs signaling pathway through activation of the MAP3Ks MAP3K10/MLK2 and MAP3K11/MLK3. May play a role in the regulation of vesicle targeting or fusion. regulation of vesicle targeting or fusion. Ref.1 Ref.3 |
| Catalytic activity | ATP + a protein = ADP + a phosphoprotein. Ref.1 |
| Cofactor | Magnesium. Ref.1 |
| Enzyme regulation | The tumor necrosis factor (TNF), as well as endotoxins and proinflammatory stimuli such as polyinosine-polycytidine (poly(IC)), lipopolysaccharides (LPS), peptidoglycan (PGN), flagellin, or lipid A activate MAP4K2 by promoting its autophosphorylation. |
| Subunit structure | Interacts with TRAF2, TRAF6, MAP3K1/MEKK1 and MAP3K11/MLK3 By similarity. Interacts with RAB8A. Ref.1 |
| Subcellular location | Cytoplasm. Basolateral cell membrane; Peripheral membrane protein. Golgi apparatus membrane; Peripheral membrane protein Ref.1. |
| Domain | The PEST domains are Pro-, Glu-, Ser-, and Thr-rich domains. Proteins with PEST domains are frequently targets of degradation by the ubiquitin proteasome. |
| Post-translational modification | Polyubiquitinated through 'Lys-48'-polyubiquitin chains, allowing proteasomal turnover. Ubiquitination requires the kinase activity of MAP4K2/GCK. Autophosphorylated in response to tumor necrosis factor (TNF), endotoxins or proinflammatory stimuli. Autophosphorylation leads to activation. |
| Sequence similarities | Belongs to the protein kinase superfamily. STE Ser/Thr protein kinase family. STE20 subfamily. Contains 1 CNH domain. Contains 1 protein kinase domain. |
Ontologies
Sequence annotation (Features)
| Feature key | Position(s) | Length | Description | Graphical view | Feature identifier | ||||
Molecule processing | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Chain | 1 – 821 | 821 | Mitogen-activated protein kinase kinase kinase kinase 2 | PRO_0000086276 | |||||
Regions | |||||||||
| Domain | 16 – 273 | 258 | Protein kinase | ||||||
| Domain | 483 – 794 | 312 | CNH | ||||||
| Nucleotide binding | 22 – 30 | 9 | ATP By similarity UniProtKB O00506 | ||||||
| Region | 294 – 314 | 21 | PEST1 | ||||||
| Region | 344 – 360 | 17 | PEST2 | ||||||
| Region | 405 – 449 | 45 | PEST3 | ||||||
Sites | |||||||||
| Active site | 136 | 1 | Proton acceptor By similarity UniProtKB O00506 | ||||||
| Binding site | 45 | 1 | ATP By similarity UniProtKB O00506 | ||||||
Amino acid modifications | |||||||||
| Modified residue | 394 | 1 | Phosphoserine By similarity | ||||||
Experimental info | |||||||||
| Sequence conflict | 223 | 1 | L → M in BAC34507. Ref.2 | ||||||
Sequences
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References
Cross-references
Sequence databases | |
|---|---|
| EMBL GenBank DDBJ | U50595 mRNA. Translation: AAC52571.1. AK051036 mRNA. Translation: BAC34507.1. |
| IPI | IPI00117889. |
| RefSeq | NP_033032.1. NM_009006.2. |
| UniGene | Mm.25860. |
3D structure databases | |
| ProteinModelPortal | Q61161. |
| SMR | Q61161. Positions 11-362. |
| ModBase | Search... |
PTM databases | |
| PhosphoSite | Q61161. |
Proteomic databases | |
| PaxDb | Q61161. |
| PRIDE | Q61161. |
Protocols and materials databases | |
| StructuralBiologyKnowledgebase | Search... |
Genome annotation databases | |
| Ensembl | ENSMUST00000025897; ENSMUSP00000025897; ENSMUSG00000024948. |
| GeneID | 26412. |
| KEGG | mmu:26412. |
| UCSC | uc008gie.1. mouse. |
Organism-specific databases | |
| CTD | 5871. |
| MGI | MGI:1346883. Map4k2. |
Phylogenomic databases | |
| eggNOG | COG0515. |
| GeneTree | ENSGT00690000101936. |
| HOGENOM | HOG000230824. |
| HOVERGEN | HBG036702. |
| InParanoid | Q61161. |
| KO | K04414. |
| OMA | PGLFEQR. |
| OrthoDB | EOG4V6ZG4. |
Gene expression databases | |
| ArrayExpress | Q61161. |
| Bgee | Q61161. |
| Genevestigator | Q61161. |
| GermOnline | ENSMUSG00000024948. Mus musculus. |
Family and domain databases | |
| InterPro | IPR001180. Citron. IPR011009. Kinase-like_dom. IPR021160. MAPKKKK. IPR000719. Prot_kinase_cat_dom. IPR017441. Protein_kinase_ATP_BS. IPR002290. Ser/Thr_dual-sp_kinase_dom. [Graphical view] |
| Pfam | PF00780. CNH. 1 hit. PF00069. Pkinase. 1 hit. [Graphical view] |
| PIRSF | PIRSF038172. MAPKKKK. 1 hit. |
| SMART | SM00036. CNH. 1 hit. SM00220. S_TKc. 1 hit. [Graphical view] |
| SUPFAM | SSF56112. Kinase_like. 1 hit. |
| PROSITE | PS50219. CNH. 1 hit. PS00107. PROTEIN_KINASE_ATP. 1 hit. PS50011. PROTEIN_KINASE_DOM. 1 hit. PS00108. PROTEIN_KINASE_ST. False negative. [Graphical view] |
| ProtoNet | Search... |
Other | |
| NextBio | 304405. |
| SOURCE | Search... |
Entry information
| Entry name | M4K2_MOUSE | ||||||||
| Accession | Primary (citable) accession number: Q61161 | ||||||||
| Entry history |
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| Entry status | Reviewed (UniProtKB/Swiss-Prot) | ||||||||
| Annotation program | Chordata Protein Annotation Program | ||||||||
Relevant documents
| Human and mouse protein kinases Human and mouse protein kinases: classification and index |
| MGD cross-references Mouse Genome Database (MGD) cross-references in UniProtKB/Swiss-Prot |
| SIMILARITY comments Index of protein domains and families |

Clusters with
