BTN1A1

Butyrophilin subfamily 1 member A1 Q13410 BT1A1_HUMAN
Protein Coding Chr 6 6p22.2 Swiss-Prot reviewed Entrez 696
Mutations
395
CL 64 · Tissue 329
Samples
359
CL 59 · Tissue 298
Peptides
271
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
Mutations39564329
Samples35959298
Peptides27139236

Function

BTN1A1 · Butyrophilin subfamily 1 member A1

Butyrophilin is the major protein associated with fat droplets in the milk. It is a member of the immunoglobulin superfamily. It may have a cell surface receptor function. The human butyrophilin gene is localized in the major histocompatibility complex (MHC) class I region of 6p and may have arisen relatively recently in evolution by the shuffling of exons between 2 ancestral gene families [provided by RefSeq, Jul 2008].

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
ENST00000244513 Q13410 358 259
ENST00000684113 Q13410 37 33

Gene Properties

Type
Protein Coding
Chromosome
6
Cytoband
6p22.2
Entrez ID
Aliases
BTBTNBTN1

Recurrent Mutations

All 259 amino-acid changes on canonical ENST00000244513 · 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 BTN1A1 · 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 BTN1A1 – 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
6/40 15%
0/0 0%
Gastrointestinal Stromal Tumour
0/0 0%
6/133 5%
Chronic Myelogenous Leukemia
1/25 4%
0/0 0%
Endometrial Carcinoma
3/42 7%
20/612 3%
Melanoma
7/210 3%
45/1899 2%
Squamous Cell Lung Carcinoma
1/57 2%
14/810 2%
Non-Small Cell Lung Carcinoma
4/304 1%
23/1390 2%
Other Solid Cancers
2/94 2%
21/1515 1%
Bladder Carcinoma
2/58 3%
11/956 1%
Colorectal Carcinoma
3/143 2%
34/3239 1%
Small Cell Lung Carcinoma
0/9 0%
8/752 1%
Ovarian Carcinoma
1/109 1%
10/998 1%
Mesothelioma
2/62 3%
0/165 0%
Other Sarcomas
2/69 3%
4/699 1%
Head and Neck Carcinoma
1/85 1%
12/1574 1%
Esophageal Carcinoma
2/23 9%
4/769 1%
Hodgkins Lymphoma
1/16 6%
0/122 0%
Esophageal Squamous Cell Carcinoma
2/51 4%
15/2550 1%
Gastric Carcinoma
1/74 1%
11/1809 1%
Biliary Tract Carcinoma
0/54 0%
6/950 1%
Hepatocellular Carcinoma
0/46 0%
12/2210 1%
Germ Cell Tumour
0/25 0%
1/169 1%
Breast Carcinoma
7/144 5%
10/3264 0%
Thyroid Gland Carcinoma
0/45 0%
8/1592 0%
Rhabdomyosarcoma
0/33 0%
1/171 1%
Cervical Carcinoma
0/35 0%
2/422 0%
Kidney Carcinoma
3/85 4%
5/1862 0%
Glioma
0/52 0%
7/2127 0%
Plasma Cell Myeloma
1/44 2%
0/305 0%
Neuroendocrine Tumour
2/154 1%
0/577 0%

Mutation Distribution

Where BTN1A1 is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in BTN1A1 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 52 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 395 mutations in BTN1A1

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