SMYD3

SET and MYND domain containing 3 Q9H7B4 SMYD3_HUMAN
Protein Coding Chr 1 1q44 Swiss-Prot reviewed Entrez 64754
Mutations
530
CL 80 · Tissue 444
Samples
235
CL 42 · Tissue 189
Peptides
182
unique mutant peptides
Transcripts
3
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
Mutations53080444
Samples23542189
Peptides18229152

Function

SMYD3 · SET and MYND domain containing 3

This gene encodes a histone methyltransferase which functions in RNA polymerase II complexes by an interaction with a specific RNA helicase. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Dec 2011].

Isoforms & Proteins

3 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
ENST00000490107 Q9H7B4 241 171
ENST00000630181 Q9H7B4-3 200 156
ENST00000403792 B0QZ88* 89 56

Gene Properties

Type
Protein Coding
Chromosome
1
Cytoband
1q44
Entrez ID
Aliases
KMT3EZMYND1ZNFN3A1bA74P14.1

Recurrent Mutations

All 171 amino-acid changes on canonical ENST00000490107 · 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 SMYD3 · 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 SMYD3 – 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
Chronic Myelogenous Leukemia
2/25 8%
0/0 0%
Gastrointestinal Stromal Tumour
0/0 0%
6/133 5%
Thymic Epithelial Tumor
0/0 0%
1/39 3%
Endometrial Carcinoma
3/42 7%
6/612 1%
Melanoma
2/210 1%
23/1899 1%
Non-Small Cell Lung Carcinoma
4/304 1%
15/1390 1%
Neuroendocrine Tumour
6/154 4%
2/577 0%
Squamous Cell Lung Carcinoma
2/57 4%
7/810 1%
Other Solid Cancers
1/94 1%
14/1515 1%
Gastric Carcinoma
1/74 1%
15/1809 1%
Colorectal Carcinoma
5/143 4%
22/3239 1%
Bladder Carcinoma
2/58 3%
5/956 1%
Biliary Tract Carcinoma
2/54 4%
4/950 0%
Small Cell Lung Carcinoma
0/9 0%
4/752 1%
Germ Cell Tumour
0/25 0%
1/169 1%
Hepatocellular Carcinoma
0/46 0%
11/2210 0%
Burkitts Lymphoma
0/32 0%
1/196 1%
Cervical Carcinoma
0/35 0%
2/422 0%
Head and Neck Carcinoma
0/85 0%
7/1574 0%
Prostate Carcinoma
1/13 8%
8/2105 0%
Other Sarcomas
3/69 4%
0/699 0%
Breast Carcinoma
1/144 1%
11/3264 0%
Thyroid Gland Carcinoma
0/45 0%
5/1592 0%
Glioma
0/52 0%
6/2127 0%
Non-Cancerous
0/104 0%
2/830 0%
Other Blood Cancers
0/61 0%
5/2725 0%
Pancreatic Carcinoma
0/89 0%
3/1611 0%
B-Lymphoblastic Leukemia
4/55 7%
0/2640 0%
Esophageal Squamous Cell Carcinoma
2/51 4%
2/2550 0%
Kidney Carcinoma
0/85 0%
3/1862 0%

Mutation Distribution

Where SMYD3 is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in SMYD3 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 530 mutations in SMYD3

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