SUN3

Sad1 and UNC84 domain containing 3 Q8TAQ9 SUN3_HUMAN
Protein Coding Chr 7 7p12.3 Swiss-Prot reviewed Entrez 256979
Mutations
722
CL 112 · Tissue 606
Samples
227
CL 50 · Tissue 176
Peptides
189
unique mutant peptides
Transcripts
4
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
Mutations722112606
Samples22750176
Peptides18932158

Function

SUN3 · Sad1 and UNC84 domain containing 3

Predicted to enable protein-membrane adaptor activity. Predicted to be involved in nuclear envelope organization. Predicted to be integral component of nuclear inner membrane. Predicted to be part of meiotic nuclear membrane microtubule tethering complex. Predicted to be active in nuclear envelope. [provided by Alliance of Genome Resources, Apr 2022]

Isoforms & Proteins

4 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
ENST00000297325 Q8TAQ9 235 156
ENST00000395572 Q8TAQ9 204 146
ENST00000412142 Q8TAQ9-3 176 130
ENST00000438771 Q8TAQ9-2 107 73

Gene Properties

Type
Protein Coding
Chromosome
7
Cytoband
7p12.3
Entrez ID
Aliases
SUNC1

Recurrent Mutations

All 156 amino-acid changes on canonical ENST00000297325 · 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 SUN3 · 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 SUN3 – 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
3/42 7%
9/612 1%
Melanoma
2/210 1%
35/1899 2%
Non-Small Cell Lung Carcinoma
12/304 4%
11/1390 1%
Other Solid Cancers
2/94 2%
18/1515 1%
Osteosarcoma
2/45 4%
0/166 0%
Colorectal Carcinoma
5/143 4%
26/3239 1%
Gastrointestinal Stromal Tumour
0/0 0%
1/133 1%
Squamous Cell Lung Carcinoma
0/57 0%
6/810 1%
Neuroendocrine Tumour
4/154 3%
1/577 0%
Head and Neck Carcinoma
2/85 2%
9/1574 1%
Gastric Carcinoma
2/74 3%
9/1809 0%
Cervical Carcinoma
0/35 0%
2/422 0%
Burkitts Lymphoma
1/32 3%
0/196 0%
Small Cell Lung Carcinoma
0/9 0%
3/752 0%
Esophageal Carcinoma
0/23 0%
3/769 0%
Ovarian Carcinoma
1/109 1%
3/998 0%
Esophageal Squamous Cell Carcinoma
2/51 4%
7/2550 0%
Kidney Carcinoma
3/85 4%
3/1862 0%
Ewings Sarcoma
0/63 0%
1/262 0%
Biliary Tract Carcinoma
0/54 0%
3/950 0%
Breast Carcinoma
2/144 1%
8/3264 0%
Thyroid Gland Carcinoma
0/45 0%
4/1592 0%
Medulloblastoma
0/0 0%
1/450 0%
Hepatocellular Carcinoma
0/46 0%
5/2210 0%
Bladder Carcinoma
0/58 0%
2/956 0%
Neuroblastoma
1/87 1%
1/1331 0%
Glioma
0/52 0%
3/2127 0%
Other Sarcomas
1/69 1%
0/699 0%
B-Cell Non-Hodgkins Lymphoma
2/88 2%
0/2534 0%

Mutation Distribution

Where SUN3 is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in SUN3 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 41 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 722 mutations in SUN3

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