BTN2A1

Butyrophilin subfamily 2 member A1 Q7KYR7 BT2A1_HUMAN
Protein Coding Chr 6 6p22.2 Swiss-Prot reviewed Entrez 11120
Mutations
968
CL 161 · Tissue 791
Samples
290
CL 61 · Tissue 225
Peptides
232
unique mutant peptides
Transcripts
5
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
Mutations968161791
Samples29061225
Peptides23238197

Function

BTN2A1 · Butyrophilin subfamily 2 member A1

This gene encodes a member of the immunoglobulin superfamily. The gene is located in a cluster of butyrophilin-like genes in the juxta-telomeric region of the major histocompatibility complex on chromosome 6. A pseudogene of this gene has been identified in this cluster. The encoded protein is an integral plasma membrane protein involved in lipid, fatty-acid, and sterol metabolism. Alterations in this gene may be associated with several disease states including metabolic syndrome. Multiple alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2013].

Isoforms & Proteins

5 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
ENST00000312541 Q7KYR7 319 218
ENST00000541522 Q7KYR7-5 264 191
ENST00000429381 Q7KYR7-4 192 136
ENST00000469185 Q7KYR7-6 192 136
ENST00000709934 H7BYC3* 1 1

Gene Properties

Type
Protein Coding
Chromosome
6
Cytoband
6p22.2
Entrez ID
Aliases
BK14H9.1BT2.1BTF1BTN2.1DJ3E1.1

Recurrent Mutations

All 218 amino-acid changes on canonical ENST00000312541 · 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 BTN2A1 · 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 BTN2A1 – 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
Endometrial Carcinoma
6/42 14%
14/612 2%
T-Lymphoblastic Leukemia
1/40 2%
0/0 0%
Melanoma
2/210 1%
31/1899 2%
Gastrointestinal Stromal Tumour
0/0 0%
2/133 2%
Squamous Cell Lung Carcinoma
4/57 7%
9/810 1%
Non-Small Cell Lung Carcinoma
11/304 4%
14/1390 1%
Hodgkins Lymphoma
0/16 0%
2/122 2%
Colorectal Carcinoma
8/143 6%
29/3239 1%
Neuroendocrine Tumour
7/154 5%
1/577 0%
Cervical Carcinoma
1/35 3%
4/422 1%
Glioblastoma
1/98 1%
0/0 0%
Bladder Carcinoma
0/58 0%
10/956 1%
Non-Cancerous
2/104 2%
6/830 1%
Other Solid Cancers
4/94 4%
8/1515 1%
Gastric Carcinoma
1/74 1%
13/1809 1%
Hepatocellular Carcinoma
1/46 2%
14/2210 1%
Glioma
0/52 0%
13/2127 1%
Head and Neck Carcinoma
1/85 1%
8/1574 1%
Germ Cell Tumour
0/25 0%
1/169 1%
Esophageal Carcinoma
0/23 0%
4/769 1%
Rhabdomyosarcoma
0/33 0%
1/171 1%
Medulloblastoma
0/0 0%
2/450 0%
Ovarian Carcinoma
1/109 1%
3/998 0%
Esophageal Squamous Cell Carcinoma
0/51 0%
8/2550 0%
Biliary Tract Carcinoma
3/54 6%
0/950 0%
Plasma Cell Myeloma
0/44 0%
1/305 0%
Breast Carcinoma
1/144 1%
9/3264 0%
Pancreatic Carcinoma
2/89 2%
3/1611 0%
Other Sarcomas
1/69 1%
1/699 0%
Kidney Carcinoma
2/85 2%
3/1862 0%

Mutation Distribution

Where BTN2A1 is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in BTN2A1 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 968 mutations in BTN2A1

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