BACH1

BTB domain and CNC homolog 1 O14867 BACH1_HUMAN
Protein Coding Chr 21 21q21.3 Swiss-Prot reviewed Entrez 571
Mutations
601
CL 86 · Tissue 508
Samples
293
CL 54 · Tissue 236
Peptides
240
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
Mutations60186508
Samples29354236
Peptides24036206

Function

BACH1 · BTB domain and CNC homolog 1

This gene encodes a transcription factor that belongs to the cap'n'collar type of basic region leucine zipper factor family (CNC-bZip). The encoded protein contains broad complex, tramtrack, bric-a-brac/poxvirus and zinc finger (BTB/POZ) domains, which is atypical of CNC-bZip family members. These BTB/POZ domains facilitate protein-protein interactions and formation of homo- and/or hetero-oligomers. When this encoded protein forms a heterodimer with MafK, it functions as a repressor of Maf recognition element (MARE) and transcription is repressed. Multiple alternatively spliced transcript variants have been identified for this gene. [provided by RefSeq, May 2009].

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
ENST00000286800 O14867 315 240
ENST00000399921 O14867 286 226

Gene Properties

Type
Protein Coding
Chromosome
21
Cytoband
21q21.3
Entrez ID
Aliases
BACH-1BTBD24

Recurrent Mutations

All 240 amino-acid changes on canonical ENST00000286800 · 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 BACH1 · 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 BACH1 – 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%
Endometrial Carcinoma
2/42 5%
26/612 4%
T-Cell Non-Hodgkins Lymphoma
1/26 4%
0/0 0%
Hodgkins Lymphoma
3/16 19%
0/122 0%
Glioblastoma
2/98 2%
0/0 0%
Cervical Carcinoma
0/35 0%
7/422 2%
Colorectal Carcinoma
5/143 4%
39/3239 1%
Non-Small Cell Lung Carcinoma
11/304 4%
11/1390 1%
Melanoma
1/210 0%
25/1899 1%
Bladder Carcinoma
4/58 7%
8/956 1%
Acute Myeloid Leukemia
1/90 1%
0/0 0%
Squamous Cell Lung Carcinoma
2/57 4%
7/810 1%
Gastric Carcinoma
3/74 4%
15/1809 1%
Osteosarcoma
2/45 4%
0/166 0%
Adrenocortical Carcinoma
0/3 0%
1/112 1%
Neuroendocrine Tumour
3/154 2%
3/577 1%
Ovarian Carcinoma
3/109 3%
4/998 0%
Other Solid Cancers
0/94 0%
10/1515 1%
Glioma
0/52 0%
13/2127 1%
Pancreatic Carcinoma
0/89 0%
9/1611 1%
Hepatocellular Carcinoma
0/46 0%
12/2210 1%
Germ Cell Tumour
0/25 0%
1/169 1%
Rhabdomyosarcoma
1/33 3%
0/171 0%
Mesothelioma
0/62 0%
1/165 1%
Neuroblastoma
3/87 3%
3/1331 0%
Biliary Tract Carcinoma
0/54 0%
4/950 0%
Non-Cancerous
0/104 0%
3/830 0%
Head and Neck Carcinoma
0/85 0%
5/1574 0%
Plasma Cell Myeloma
1/44 2%
0/305 0%
Kidney Carcinoma
0/85 0%
5/1862 0%

Mutation Distribution

Where BACH1 is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in BACH1 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 601 mutations in BACH1

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