Molecular Target Synopsis
Domains and Structures
Drugs and Clinical Candidates
Ligand Efficiency Plot
Family Cladogram
Interaction Network
Gene Expression
Gene Copy Number Variation
Germline Genetics

RPS6KA6 (Q9UK32) - Overview - Molecular Target Synopsis


RPS6KA6, Ribosomal protein S6 kinase alpha-6
Enzyme Classification
UniProt Q9UK32

Also Known as KS6A6_HUMAN, RPS6KA6, RSK4

Constitutively active serine/threonine-protein kinase that exhibits growth-factor-independent kinase activity and that may participate in p53/TP53-dependent cell growth arrest signaling and play an inhibitory role during embryogenesis. Forms a complex with MAPK3/ERK1 but not with MAPK9 or MAPK14 in serum-starved cells.

Isoforms / Transcripts (Protein Coding)

Protein Length Ensembl Gene Ensembl Transcript Ensembl Protein Uniprot Isoform

Sub-cellular localization

UniProt: RPS6KA6 is active in the following subcellular-locations: cytoplasm, cytosol, nucleus.
GO terms: RPS6KA6 is active in the following subcellular-locations: cytosol, fibrillar center, mitochondrion, nucleolus, nucleoplasm, nucleus.

GO terms

Gene Copy Number Variation

In COSMIC - Cell Lines Project RPS6KA6 has gain in 2 cell-lines, loss in 31 cell-lines and no signal in 972 cell-lines. (see details)

Gene Expression

In NCI60, the highest expressing cell lines are: PC_3, MCF7, HL_60

In Array Express (RNA-seq of 675 commonly used human cancer cell lines), the highest expressing cell lines are: NCI-H146, COR-L47, MHH-NB-11

In Array Express (RNA-seq of long poly adenylated RNA and long non poly adenylated RNA from ENCODE cell lines), the highest expressing cell lines are: SK-N-SH, HSMM, HMEC

(see details)

RNA Interference

RPS6KA6 was reported in the following RNAI studies:

Cell - Large Scale Profiling of Kinase Dependencies in Cancer Cell Lines, the highest RNAi cell lines are: MFM223, A549. (see details)

3D Structures

At greater than 75% identity similarity to RPS6KA6 there are:
22 structures (23 chains) solved
20 are solved in complex with at least one small molecule ligand

(see details)
Molecular Target 3D Synopsis

Screening and Chemistry

RPS6KA6 has been screened with 711 compounds (1473 bioactivities), 14 compounds have bioactivities that show binding affinity of <= 500nM (19 bioactivities). (see details)