MUC1 Mucin 1, cell surface associated P15941-8 MUC1_HUMAN
Protein Coding Chr 1 1q22 Swiss-Prot reviewed Entrez 4582
Mutations
1,895
CL 255 · Tissue 1,564
Samples
209
CL 29 · Tissue 173
Peptides
384
unique mutant peptides
Transcripts
18
isoforms mutated

Stats by Source

Global, split by cell line (COSMIC CL / DepMap / PubMed) vs tissue (COSMIC primary tissue)

How the counts split by source
Stats by Source

Global = all mutations for this gene across every source.

Cell line = COSMIC Cell Lines Project + DepMap + PubMed.

Tissue = COSMIC primary-tissue (patient tumour) samples.

Global can exceed cell line + tissue: COSMIC tissue-derived models sit only in global, and a peptide can be shared across both.

GlobalCell lineTissue
Mutations1,8952551,564
Samples20929173
Peptides38462328

Function

MUC1 · Mucin 1, cell surface associated

This gene encodes a membrane-bound protein that is a member of the mucin family. Mucins are O-glycosylated proteins that play an essential role in forming protective mucous barriers on epithelial surfaces. These proteins also play a role in intracellular signaling. This protein is expressed on the apical surface of epithelial cells that line the mucosal surfaces of many different tissues including lung, breast stomach and pancreas. This protein is proteolytically cleaved into alpha and beta subunits that form a heterodimeric complex. The N-terminal alpha subunit functions in cell-adhesion and the C-terminal beta subunit is involved in cell signaling. Overexpression, aberrant intracellular localization, and changes in glycosylation of this protein have been associated with carcinomas. This gene is known to contain a highly polymorphic variable number tandem repeats (VNTR) domain. Alternate splicing results in multiple transcript variants.[provided by RefSeq, Feb 2011].

Isoforms & Proteins

18 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
ENST00000620103 A0A0C4DGW3* 188 154
ENST00000337604 P15941-8 151 121
ENST00000368392 P15941-11 137 108
ENST00000368390 P15941-7 127 103
ENST00000457295 A0A0A0MSH4* 122 100
ENST00000368398 P15941-6 114 93
ENST00000610359 A0A087X0L2* 109 89
ENST00000343256 P15941-10 108 82
ENST00000338684 A0A0A0MRB3* 107 88
ENST00000438413 B1AVQ7* 104 85
ENST00000615517 A6ZIE4* 101 80
ENST00000342482 P15941-16 91 71
ENST00000368389 P15941-9 87 72
ENST00000368393 P15941-13 87 75
ENST00000368396 P15941-12 83 68
ENST00000471283 A0A087X264* 74 60
ENST00000614519 A0A087WZZ6* 53 47
ENST00000462215 A0A087WWM2* 52 48

Gene Properties

Type
Protein Coding
Chromosome
1
Cytoband
1q22
Entrez ID
Aliases
ADMCKDADMCKD1ADTKD2CA 15-3CD227Ca15-3

Recurrent Mutations

Top recurrent amino-acid changes along the protein · needle height = number of mutations

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 Distribution

Where MUC1 is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in MUC1 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 1,895 mutations in MUC1

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 CDSTypeSourcePeptide