CKMT1B

Chr 15

creatine kinase, mitochondrial 1B

Also known as: CKMT, CKMT1, UMTCK

Mitochondrial creatine (MtCK) kinase is responsible for the transfer of high energy phosphate from mitochondria to the cytosolic carrier, creatine. It belongs to the creatine kinase isoenzyme family. It exists as two isoenzymes, sarcomeric MtCK and ubiquitous MtCK, encoded by separate genes. Mitochondrial creatine kinase occurs in two different oligomeric forms: dimers and octamers, in contrast to the exclusively dimeric cytosolic creatine kinase isoenzymes. Many malignant cancers with poor prognosis have shown overexpression of ubiquitous mitochondrial creatine kinase; this may be related to high energy turnover and failure to eliminate cancer cells via apoptosis. Ubiquitous mitochondrial creatine kinase has 80% homology with the coding exons of sarcomeric mitochondrial creatine kinase. Two genes located near each other on chromosome 15 have been identified which encode identical mitochondrial creatine kinase proteins. [provided by RefSeq, Jul 2008]

ResearchGenerating clinical summary…
0
Active trials
14
Pubs (1 yr)
—
P/LP submissions
—
P/LP missense
1.36
LOEUF
DN
Mechanism· predicted
Some data sources returned errors (1)

omim: Error: OMIM fetch failed: 429

Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

Tolerant — LoF & missense variants common in population
LoF Constraint?
1.36LOEUF
pLI 0.000
Z-score 0.74
OE 0.75 (0.44–1.36)
Tolerant

Highly tolerant — LoF variants common in population

Missense Constraint?
0.53Z-score
OE missense 0.86 (0.73–1.02)
96 obs / 111.9 exp
Tolerant

Mild missense constraint

Observed / Expected Ratios?
LoF OE?0.75 (0.44–1.36)
0≤0.351.4
Missense OE?0.86 (0.73–1.02)
0≤0.61.4
Synonymous OE?0.88
0≤1.21.6
LoF obs/exp: 8 / 10.6Missense obs/exp: 96 / 111.9Syn Z: 0.59

ClinVar Variant Classifications

0 submitted variants in ClinVar

Protein Context — Lollipop Plot

CKMT1B · protein map & ClinVar variants

Showing all ClinVar variants across the protein. Search a specific variant to highlight its position.

Clinical Trials

Active and recruiting trials from ClinicalTrials.gov

No active trials found for this gene.

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