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- Table of Contents
Facts about Ribosomal protein S6 kinase alpha-1.
Phosphorylates RPS6 in response to serum or EGF via an mTOR-independent mechanism and promotes translation initiation by facilitating assembly of the pre-initiation complicated. In response to insulin, phosphorylates EIF4B, improving EIF4B affinity for the EIF3 complicated and stimulating cap-dependent translation.
| Human | |
|---|---|
| Gene Name: | RPS6KA1 |
| Uniprot: | Q15418 |
| Entrez: | 6195 |

| Belongs to: |
|---|
| protein kinase superfamily |

90kD, polypeptide 1); EC 2.7.11; EC 2.7.11.1,90 kDa ribosomal protein S6 kinase 1; HU-1; MAP kinase-activated protein kinase 1a; MAPK-activated protein kinase 1a; MAPKAP kinase 1a; MAPKAPK-1a; MAPKAPL1A; p90RSK1; p90S6K; ribosomal protein S6 kinase alpha 1; ribosomal protein S6 kinase alpha-1; ribosomal protein S6 kinase, 90kD, polypeptide 1; ribosomal protein S6 kinase, 90kDa, polypeptide 1; Ribosomal S6 kinase 1; RPS6KA1; RSK; RSK1; RSK-1; RSK1p90-RSK 1; S6K-alpha 1; S6K-alpha-1
Mass (kDA):
82.723 kDA

| Human | |
|---|---|
| Location: | 1p36.11 |
| Sequence: | 1; NC_000001.11 (26529761..26575028) |
Nucleus. Cytoplasm.






PMID: 8141249 by Moller D.E., et al. Human rsk isoforms: cloning and characterization of tissue-specific expression.
PMID: 9687510 by Deak M., et al. Mitogen- and stress-activated protein kinase-1 (MSK1) is directly activated by MAPK and SAPK2/p38, and may mediate activation of CREB.