PRKACB

Protein kinase cAMP-activated catalytic subunit beta P22694 KAPCB_HUMAN
Protein Coding Chr 1 1p31.1 Swiss-Prot reviewed Entrez 5567
Mutations
1,391
CL 144 · Tissue 1,246
Samples
185
CL 36 · Tissue 148
Peptides
222
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
Mutations1,3911441,246
Samples18536148
Peptides22232198

Function

PRKACB · Protein kinase cAMP-activated catalytic subunit beta

The protein encoded by this gene is a member of the serine/threonine protein kinase family. The encoded protein is a catalytic subunit of cAMP (cyclic AMP)-dependent protein kinase, which mediates signalling though cAMP. cAMP signaling is important to a number of processes, including cell proliferaton and differentiation. Multiple alternatively spliced transcript variants encoding distinct isoforms have been observed. [provided by RefSeq, Jul 2014].

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
ENST00000370685 P22694-2 192 146
ENST00000446538 P22694-9 163 126
ENST00000614872 P22694-6 159 125
ENST00000610703 P22694-3 156 120
ENST00000370689 P22694 153 125
ENST00000610457 A0A087WVC4* 138 111
ENST00000394839 P22694-10 133 109
ENST00000370680 B1APG3* 103 76
ENST00000370688 P22694-8 99 75
ENST00000370684 B1APF9* 95 71

Gene Properties

Type
Protein Coding
Chromosome
1
Cytoband
1p31.1
Entrez ID
Aliases
CAFD2PKA C-betaPKACB

Recurrent Mutations

All 146 amino-acid changes on canonical ENST00000370685 · 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 PRKACB · 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 PRKACB – 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%
Oral Cavity Carcinoma
1/54 2%
0/0 0%
Endometrial Carcinoma
2/42 5%
10/612 2%
Non-Small Cell Lung Carcinoma
5/304 2%
20/1390 1%
Chondrosarcoma
0/14 0%
1/75 1%
Glioblastoma
1/98 1%
0/0 0%
Melanoma
1/210 0%
15/1899 1%
Squamous Cell Lung Carcinoma
0/57 0%
6/810 1%
Bladder Carcinoma
2/58 3%
5/956 1%
Neuroendocrine Tumour
2/154 1%
3/577 1%
Gastric Carcinoma
1/74 1%
10/1809 1%
Non-Cancerous
2/104 2%
3/830 0%
Small Cell Lung Carcinoma
0/9 0%
4/752 1%
Colorectal Carcinoma
6/143 4%
11/3239 0%
Cervical Carcinoma
0/35 0%
2/422 0%
Hepatocellular Carcinoma
1/46 2%
9/2210 0%
Ovarian Carcinoma
2/109 2%
2/998 0%
Head and Neck Carcinoma
2/85 2%
3/1574 0%
Esophageal Squamous Cell Carcinoma
0/51 0%
7/2550 0%
Kidney Carcinoma
0/85 0%
5/1862 0%
Breast Carcinoma
3/144 2%
6/3264 0%
Other Sarcomas
1/69 1%
1/699 0%
Esophageal Carcinoma
0/23 0%
2/769 0%
B-Cell Non-Hodgkins Lymphoma
2/88 2%
4/2534 0%
Medulloblastoma
0/0 0%
1/450 0%
Glioma
0/52 0%
4/2127 0%
Thyroid Gland Carcinoma
0/45 0%
3/1592 0%
Other Blood Cancers
0/61 0%
5/2725 0%
Pancreatic Carcinoma
0/89 0%
2/1611 0%
Other Solid Cancers
0/94 0%
2/1515 0%

Mutation Distribution

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

Mutation counts by tissue
Mutation Distribution

How many mutations in PRKACB 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 1,391 mutations in PRKACB

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