BLOC1S1

Biogenesis of lysosomal organelles complex 1 subunit 1 P78537 BL1S1_HUMAN
Protein Coding Chr 12 12q13.2 Swiss-Prot reviewed Entrez 2647
Mutations
158
CL 21 · Tissue 136
Samples
61
CL 12 · Tissue 48
Peptides
50
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
Mutations15821136
Samples611248
Peptides50943

Function

BLOC1S1 · Biogenesis of lysosomal organelles complex 1 subunit 1

BLOC1S1 is a component of the ubiquitously expressed BLOC1 multisubunit protein complex. BLOC1 is required for normal biogenesis of specialized organelles of the endosomal-lysosomal system, such as melanosomes and platelet dense granules (Starcevic and Dell'Angelica, 2004 [PubMed 15102850]).[supplied by OMIM, Mar 2008].

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
ENST00000548925 P78537 60 44
ENST00000549147 F8VP73* 42 33
ENST00000547076 G8JLQ3* 22 18
ENST00000548556 G8JLQ3* 22 18
ENST00000551926 F8W606* 12 11

Gene Properties

Type
Protein Coding
Chromosome
12
Cytoband
12q13.2
Entrez ID
Aliases
BLOS1BORCS1GCN5L1MICoART14

Recurrent Mutations

All 44 amino-acid changes on canonical ENST00000548925 · 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 BLOC1S1 · 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 BLOC1S1 – 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
Acute Myeloid Leukemia
1/90 1%
0/0 0%
Neuroendocrine Tumour
4/154 3%
0/577 0%
Burkitts Lymphoma
0/32 0%
1/196 1%
Endometrial Carcinoma
0/42 0%
2/612 0%
Bladder Carcinoma
1/58 2%
2/956 0%
Colorectal Carcinoma
2/143 1%
8/3239 0%
Melanoma
0/210 0%
6/1899 0%
Gastric Carcinoma
0/74 0%
4/1809 0%
Non-Small Cell Lung Carcinoma
0/304 0%
3/1390 0%
Head and Neck Carcinoma
0/85 0%
3/1574 0%
Pancreatic Carcinoma
0/89 0%
3/1611 0%
Breast Carcinoma
0/144 0%
5/3264 0%
Glioma
1/52 2%
2/2127 0%
Other Sarcomas
0/69 0%
1/699 0%
Small Cell Lung Carcinoma
0/9 0%
1/752 0%
Thyroid Gland Carcinoma
0/45 0%
2/1592 0%
Other Solid Cancers
0/94 0%
2/1515 0%
Non-Cancerous
0/104 0%
1/830 0%
Biliary Tract Carcinoma
0/54 0%
1/950 0%
Kidney Carcinoma
2/85 2%
0/1862 0%
Hepatocellular Carcinoma
0/46 0%
2/2210 0%
B-Cell Non-Hodgkins Lymphoma
1/88 1%
0/2534 0%

Mutation Distribution

Where BLOC1S1 is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in BLOC1S1 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 158 mutations in BLOC1S1

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