RPS6KA3

Ribosomal protein S6 kinase A3 P51812 KS6A3_HUMAN
Protein Coding Chr X Xp22.12 Swiss-Prot reviewed Entrez 6197
Mutations
2,925
CL 133 · Tissue 2,776
Samples
310
CL 33 · Tissue 273
Peptides
257
unique mutant peptides
Transcripts
10
isoforms mutated

Stats by Source

Total, split by cell line (COSMIC CL / DepMap / PubMed) vs tissue (COSMIC primary tissue)

How the counts split by source
Stats by Source

Total = all mutations for this gene across every source.

Cell line = COSMIC Cell Lines Project + DepMap + PubMed.

Tissue = COSMIC primary-tissue (patient tumour) samples.

Total can exceed cell line + tissue: COSMIC tissue-derived models sit only in global, and a peptide can be shared across both.

TotalCell lineTissue
Mutations2,9251332,776
Samples31033273
Peptides25722232

Function

RPS6KA3 · Ribosomal protein S6 kinase A3

This gene encodes a member of the RSK (ribosomal S6 kinase) family of serine/threonine kinases. This kinase contains 2 non-identical kinase catalytic domains and phosphorylates various substrates, including members of the mitogen-activated kinase (MAPK) signalling pathway. The activity of this protein has been implicated in controlling cell growth and differentiation. Mutations in this gene have been associated with Coffin-Lowry syndrome (CLS). [provided by RefSeq, Jul 2008].

Isoforms & Proteins

10 transcripts · UniProt mapping is sequence-verified (AA-safe)

About the isoform mapping
Isoforms & Proteins

Each Ensembl transcript (ENST) this gene is mutated on, with its matched UniProt accession.

The mapping is sequence-verified: the UniProt sequence is identical to the transcript translation, so amino-acid positions line up exactly. A * marks an unreviewed (TrEMBL) entry.

Counts are mutations and unique mutant peptides on each transcript.

TranscriptUniProtMutationsPeptides
ENST00000379565 P51812 324 247
ENST00000457145 B1AXG1* 289 228
ENST00000642835 B7ZB17* 289 227
ENST00000643085 B7ZB17* 289 227
ENST00000643337 B7ZB17* 289 227
ENST00000643402 B7ZB17* 289 227
ENST00000644893 B4DG22* 289 227
ENST00000645270 B7ZB17* 289 227
ENST00000646610 B7ZB17* 289 227
ENST00000647265 B7ZB17* 289 227

Gene Properties

Type
Protein Coding
Chromosome
X
Cytoband
Xp22.12
Entrez ID
Aliases
CLSHU-3ISPK-1MAPKAPK1BMRX19RSK

Recurrent Mutations

All 247 amino-acid changes on canonical ENST00000379565 · needle height = samples · drag the mini-map to zoom

What this lollipop shows
Recurrent Mutations

A lollipop / needle plot – the standard way to show recurrent mutations along a protein (as used by cBioPortal and MutationMapper).

X-axis = amino-acid position in the protein.

Needle height & head size = how often that exact amino-acid change was observed (its recurrence). Tall/large heads are mutational hotspots.

The most recurrent changes are labelled; hover any needle for the change, position and counts.

Mutation frequency across cancer types

% of samples with a missense/complex mutation in RPS6KA3 · cell line vs tissue

How this frequency is counted
Cancer-type mutation frequency

For each cancer type, the fraction of samples that carry at least one missense/complex mutation anywhere in RPS6KA3 – counted as distinct samples (a sample counts once no matter how many mutations it has).

Split into cell line and tissue; each cell shows mutated / total and the percentage. Cohorts with <20 samples are omitted. Ordered by combined frequency.

Cancer typeCell linesTissue samples
Chronic Myelogenous Leukemia
2/25 8%
0/0 0%
T-Lymphoblastic Leukemia
2/40 5%
0/0 0%
Endometrial Carcinoma
2/42 5%
27/612 4%
Unknown
1/10 10%
0/29 0%
Cervical Carcinoma
1/35 3%
8/422 2%
Hepatocellular Carcinoma
0/46 0%
38/2210 2%
Melanoma
0/210 0%
29/1899 2%
Squamous Cell Lung Carcinoma
0/57 0%
11/810 1%
Bladder Carcinoma
0/58 0%
12/956 1%
Colorectal Carcinoma
7/143 5%
31/3239 1%
Gastric Carcinoma
3/74 4%
16/1809 1%
Other Sarcomas
0/69 0%
7/699 1%
Gastrointestinal Stromal Tumour
0/0 0%
1/133 1%
Small Cell Lung Carcinoma
0/9 0%
5/752 1%
Breast Carcinoma
3/144 2%
19/3264 1%
Biliary Tract Carcinoma
1/54 2%
5/950 1%
Ovarian Carcinoma
3/109 3%
3/998 0%
Head and Neck Carcinoma
1/85 1%
8/1574 1%
Glioma
0/52 0%
11/2127 1%
Esophageal Squamous Cell Carcinoma
0/51 0%
12/2550 0%
Mesothelioma
0/62 0%
1/165 1%
Non-Small Cell Lung Carcinoma
0/304 0%
7/1390 0%
Neuroendocrine Tumour
1/154 1%
2/577 0%
Meningioma
1/3 33%
0/252 0%
Esophageal Carcinoma
0/23 0%
3/769 0%
Other Solid Cancers
0/94 0%
6/1515 0%
Plasma Cell Myeloma
1/44 2%
0/305 0%
Neuroblastoma
0/87 0%
3/1331 0%
Kidney Carcinoma
0/85 0%
4/1862 0%
Thyroid Gland Carcinoma
0/45 0%
3/1592 0%

Mutation Distribution

Where RPS6KA3 is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in RPS6KA3 were found in each tissue, across the whole database.

Each bar is a tissue (cell-line and tissue names are merged to the standard tissue), split into cell line and tissue (patient tumour) contributions.

This shows the cancer-context where this gene is recurrently altered.

GTEx Expression

Median TPM across 54 healthy tissues

GTEx Portal ↗
About the expression data
GTEx Expression

Median gene expression (TPM) in normal, non-cancer human tissues from the GTEx project.

Useful for judging tumour specificity – a strong neoantigen target ideally comes from a gene with low expression in healthy tissues.

Scroll or drag the mini-axis below the chart to browse all tissues.

Mutations

All 2,925 mutations in RPS6KA3

About the mutation list
Mutations

Every mutation record for this gene, across all samples and sources.

The Sample column links to the cell line (cell-line samples) or the tissue type (tissue samples).

Use the Type / Source filters, the search box, and column sorting to explore; each CAN-IMMUNE ID opens the full mutation & peptide view.

IDSampleTranscriptAA Change CDSTypeSourceMutant PeptideWild-type Peptide