FAM173B

ATP synthase subunit C lysine N-methyltransferase Q6P4H8 ACKMT_HUMAN
Swiss-Prot reviewed
Mutations
311
CL 61 · Tissue 246
Samples
139
CL 27 · Tissue 110
Peptides
103
unique mutant peptides
Transcripts
3
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
Mutations31161246
Samples13927110
Peptides1032381

Function

FAM173B · ATP synthase subunit C lysine N-methyltransferase

Mitochondrial protein-lysine N-methyltransferase that trimethylates ATP synthase subunit C, ATP5MC1 and ATP5MC2. Trimethylation is required for proper incorporation of the C subunit into the ATP synthase complex and mitochondrial respiration (PubMed:29444090, PubMed:30530489). Promotes chronic pain (PubMed:29444090). Involved in persistent inflammatory and neuropathic pain: methyltransferase activity in the mitochondria of sensory neurons promotes chronic pain via a pathway that depends on the production of reactive oxygen species (ROS) and on the engagement of spinal cord microglia (PubMed:29444090)

Isoforms & Proteins

3 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
ENST00000511437 Q6P4H8 143 89
ENST00000510047 Q6P4H8-2 131 79
ENST00000280330 J3KN90* 37 26

Gene Properties

Recurrent Mutations

All 89 amino-acid changes on canonical ENST00000511437 · 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 FAM173B · 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 FAM173B – 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
Chordoma
2/7 29%
0/13 0%
Gastrointestinal Stromal Tumour
0/0 0%
4/133 3%
Endometrial Carcinoma
0/42 0%
6/612 1%
Squamous Cell Lung Carcinoma
1/57 2%
7/810 1%
Non-Small Cell Lung Carcinoma
6/304 2%
7/1390 0%
Colorectal Carcinoma
4/143 3%
20/3239 1%
Melanoma
2/210 1%
12/1899 1%
Gastric Carcinoma
2/74 3%
8/1809 0%
Esophageal Squamous Cell Carcinoma
0/51 0%
13/2550 1%
Cervical Carcinoma
0/35 0%
2/422 0%
Burkitts Lymphoma
0/32 0%
1/196 1%
Ovarian Carcinoma
3/109 3%
1/998 0%
Non-Cancerous
0/104 0%
3/830 0%
Ewings Sarcoma
1/63 2%
0/262 0%
Neuroendocrine Tumour
2/154 1%
0/577 0%
Small Cell Lung Carcinoma
0/9 0%
2/752 0%
Pancreatic Carcinoma
1/89 1%
3/1611 0%
Bladder Carcinoma
0/58 0%
2/956 0%
B-Cell Non-Hodgkins Lymphoma
0/88 0%
5/2534 0%
Other Solid Cancers
1/94 1%
2/1515 0%
Esophageal Carcinoma
0/23 0%
1/769 0%
Head and Neck Carcinoma
0/85 0%
2/1574 0%
Breast Carcinoma
0/144 0%
4/3264 0%
Kidney Carcinoma
0/85 0%
2/1862 0%
Prostate Carcinoma
1/13 8%
1/2105 0%
Neuroblastoma
0/87 0%
1/1331 0%
Thyroid Gland Carcinoma
0/45 0%
1/1592 0%
Glioma
0/52 0%
1/2127 0%
B-Lymphoblastic Leukemia
1/55 2%
0/2640 0%
Hepatocellular Carcinoma
0/46 0%
1/2210 0%

Mutation Distribution

Where FAM173B is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in FAM173B 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 311 mutations in FAM173B

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