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UniProt functional annotation for Q9NQU5 | ||
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| UniProt code: Q9NQU5. |
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| Organism: | |
Homo sapiens (Human). |
| Taxonomy: | |
Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo. |
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| Function: | |
Serine/threonine protein kinase that plays a role in the regulation of gene transcription. The kinase activity is induced by various effectors including AR or MAP2K6/MAPKK6. Phosphorylates the DNA-binding domain of androgen receptor/AR and thereby inhibits AR- mediated transcription. Inhibits also ESR1-mediated transcription. May play a role in cytoskeleton regulation by interacting with IQGAP1. May protect cells from apoptosis through phosphorylation of BAD. {ECO:0000269|PubMed:14573606, ECO:0000269|PubMed:20054820}. |
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| Catalytic activity: | |
Reaction=ATP + L-seryl-[protein] = ADP + H(+) + O-phospho-L-seryl- [protein]; Xref=Rhea:RHEA:17989, Rhea:RHEA-COMP:9863, Rhea:RHEA- COMP:11604, ChEBI:CHEBI:15378, ChEBI:CHEBI:29999, ChEBI:CHEBI:30616, ChEBI:CHEBI:83421, ChEBI:CHEBI:456216; EC=2.7.11.1; |
| Catalytic activity: | |
Reaction=ATP + L-threonyl-[protein] = ADP + H(+) + O-phospho-L- threonyl-[protein]; Xref=Rhea:RHEA:46608, Rhea:RHEA-COMP:11060, Rhea:RHEA-COMP:11605, ChEBI:CHEBI:15378, ChEBI:CHEBI:30013, ChEBI:CHEBI:30616, ChEBI:CHEBI:61977, ChEBI:CHEBI:456216; EC=2.7.11.1; |
| Subunit: | |
Interacts tightly with GTP-bound but not GDP-bound CDC42/p21 and RAC1 (By similarity). Interacts with the androgen receptor AR and the estrogen receptor ESR1. Interacts with IQGAP1 and PPM1B. {ECO:0000250, ECO:0000269|PubMed:11278661, ECO:0000269|PubMed:11773441, ECO:0000269|PubMed:18642328, ECO:0000269|Ref.13}. |
| Subcellular location: | |
Cytoplasm. Nucleus. Note=Cotranslocates into nucleus with AR in response to androgen induction. |
| Tissue specificity: | |
Selectively expressed in brain and testis, with lower levels in multiple tissues including prostate and breast. {ECO:0000269|PubMed:11278661, ECO:0000269|PubMed:11773441}. |
| Ptm: | |
Autophosphorylated. Phosphorylated by MAP2K6//MAPKK6, leading to PAK6 activation. {ECO:0000269|PubMed:15550393, ECO:0000269|Ref.12}. |
| Similarity: | |
Belongs to the protein kinase superfamily. STE Ser/Thr protein kinase family. STE20 subfamily. {ECO:0000305}. |
Annotations taken from UniProtKB at the EBI.