MYLK

Myosin light chain kinase Q15746 MYLK_HUMAN
Protein Coding Chr 3 3q21.1 Swiss-Prot reviewed Entrez 4638
Mutations
4,443
CL 633 · Tissue 3,744
Samples
1,114
CL 215 · Tissue 881
Peptides
895
unique mutant peptides
Transcripts
12
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
Mutations4,4436333,744
Samples1,114215881
Peptides895153751

Function

MYLK · Myosin light chain kinase

This gene, a muscle member of the immunoglobulin gene superfamily, encodes myosin light chain kinase which is a calcium/calmodulin dependent enzyme. This kinase phosphorylates myosin regulatory light chains to facilitate myosin interaction with actin filaments to produce contractile activity. This gene encodes both smooth muscle and nonmuscle isoforms. In addition, using a separate promoter in an intron in the 3' region, it encodes telokin, a small protein identical in sequence to the C-terminus of myosin light chain kinase, that is independently expressed in smooth muscle and functions to stabilize unphosphorylated myosin filaments. A pseudogene is located on the p arm of chromosome 3. Four transcript variants that produce four isoforms of the calcium/calmodulin dependent enzyme have been identified as well as two transcripts that produce two isoforms of telokin. Additional variants have been identified but lack full length transcripts. [provided by RefSeq, Jul 2008].

Isoforms & Proteins

12 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
ENST00000360304 Q15746 1,329 854
ENST00000360772 Q15746-3 1,136 748
ENST00000346322 Q15746-4 1,012 652
ENST00000693689 Q15746-2 796 513
ENST00000418370 Q15746-8 65 53
ENST00000583087 Q15746-8 57 48
ENST00000685744 Q15746-10 29 23
ENST00000578202 A0A8J9G5A3* 13 12
ENST00000686039 A0A8I5KUH4* 3 3
ENST00000508240 Q15746-9 1 1
ENST00000685021 Q15746-7 1 1
ENST00000686761 Q15746 1 1

Gene Properties

Type
Protein Coding
Chromosome
3
Cytoband
3q21.1
Entrez ID
Aliases
AAT7KRPMLCKMLCK1MLCK108MLCK210

Recurrent Mutations

All 854 amino-acid changes on canonical ENST00000360304 · 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 MYLK · 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 MYLK – 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
5/40 12%
0/0 0%
Endometrial Carcinoma
15/42 36%
51/612 8%
Melanoma
20/210 10%
161/1899 8%
T-Cell Non-Hodgkins Lymphoma
2/26 8%
0/0 0%
Gastrointestinal Stromal Tumour
0/0 0%
10/133 8%
Squamous Cell Lung Carcinoma
7/57 12%
32/810 4%
Gastric Carcinoma
5/74 7%
72/1809 4%
Glioblastoma
4/98 4%
0/0 0%
Non-Small Cell Lung Carcinoma
19/304 6%
44/1390 3%
Bladder Carcinoma
5/58 9%
31/956 3%
Colorectal Carcinoma
22/143 15%
92/3239 3%
Other Solid Cancers
3/94 3%
48/1515 3%
Other Sarcomas
7/69 10%
12/699 2%
Esophageal Squamous Cell Carcinoma
11/51 22%
51/2550 2%
Small Cell Lung Carcinoma
0/9 0%
18/752 2%
Acute Myeloid Leukemia
2/90 2%
0/0 0%
Mesothelioma
3/62 5%
2/165 1%
Ewings Sarcoma
3/63 5%
4/262 2%
Ovarian Carcinoma
7/109 6%
15/998 2%
Head and Neck Carcinoma
12/85 14%
20/1574 1%
Thyroid Gland Carcinoma
2/45 4%
29/1592 2%
Oral Cavity Carcinoma
1/54 2%
0/0 0%
Cervical Carcinoma
2/35 6%
6/422 1%
Biliary Tract Carcinoma
0/54 0%
17/950 2%
Neuroendocrine Tumour
8/154 5%
4/577 1%
Esophageal Carcinoma
2/23 9%
11/769 1%
Non-Cancerous
0/104 0%
15/830 2%
Meningioma
0/3 0%
4/252 2%
Germ Cell Tumour
1/25 4%
2/169 1%
Osteosarcoma
3/45 7%
0/166 0%

Mutation Distribution

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

Mutation counts by tissue
Mutation Distribution

How many mutations in MYLK 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 4,443 mutations in MYLK

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