RABGGTB

Rab geranylgeranyltransferase subunit beta P53611 PGTB2_HUMAN
Protein Coding Chr 1 1p31.1 Swiss-Prot reviewed Entrez 5876
Mutations
224
CL 47 · Tissue 173
Samples
157
CL 35 · Tissue 119
Peptides
127
unique mutant peptides
Transcripts
2
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
Mutations22447173
Samples15735119
Peptides12725102

Function

RABGGTB · Rab geranylgeranyltransferase subunit beta

This gene encodes the beta-subunit of the enzyme Rab geranylgeranyl-transferase (RabGGTase), which belongs to the protein prenyltransferase family. RabGGTase catalyzes the post-translational addition of geranylgeranyl groups to C-terminal cysteine residues of Rab GTPases. Three small nucleolar RNA genes are present in the intronic regions of this gene. Alternately spliced transcript variants have been observed for this gene. A pseudogene associated with this gene is located on chromosome 3. [provided by RefSeq, Jan 2013].

Isoforms & Proteins

2 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
ENST00000319942 P53611 164 124
ENST00000370826 Q5T4U8* 60 50

Gene Properties

Type
Protein Coding
Chromosome
1
Cytoband
1p31.1
Entrez ID
Aliases
GGTB

Recurrent Mutations

All 124 amino-acid changes on canonical ENST00000319942 · 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 RABGGTB · 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 RABGGTB – 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
T-Lymphoblastic Leukemia
2/40 5%
0/0 0%
Glioblastoma
2/98 2%
0/0 0%
Endometrial Carcinoma
2/42 5%
11/612 2%
Squamous Cell Lung Carcinoma
2/57 4%
9/810 1%
Colorectal Carcinoma
14/143 10%
21/3239 1%
Non-Small Cell Lung Carcinoma
4/304 1%
9/1390 1%
Neuroendocrine Tumour
2/154 1%
2/577 0%
Bladder Carcinoma
0/58 0%
5/956 1%
Burkitts Lymphoma
0/32 0%
1/196 1%
Melanoma
1/210 0%
8/1899 0%
Biliary Tract Carcinoma
0/54 0%
4/950 0%
Glioma
0/52 0%
8/2127 0%
Other Solid Cancers
0/94 0%
6/1515 0%
Breast Carcinoma
4/144 3%
7/3264 0%
Hepatocellular Carcinoma
0/46 0%
7/2210 0%
Head and Neck Carcinoma
0/85 0%
5/1574 0%
Ovarian Carcinoma
1/109 1%
2/998 0%
Cervical Carcinoma
0/35 0%
1/422 0%
Pancreatic Carcinoma
0/89 0%
3/1611 0%
Gastric Carcinoma
0/74 0%
3/1809 0%
Kidney Carcinoma
0/85 0%
3/1862 0%
Small Cell Lung Carcinoma
0/9 0%
1/752 0%
Thyroid Gland Carcinoma
0/45 0%
2/1592 0%
Non-Cancerous
0/104 0%
1/830 0%
B-Cell Non-Hodgkins Lymphoma
0/88 0%
2/2534 0%
Neuroblastoma
0/87 0%
1/1331 0%
B-Lymphoblastic Leukemia
1/55 2%
0/2640 0%

Mutation Distribution

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

Mutation counts by tissue
Mutation Distribution

How many mutations in RABGGTB 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 224 mutations in RABGGTB

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