CKMT1B

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]

Description

Creatine kinase, mitochondrial 1B

Tissue specificity

Tissue enhanced (brain, esophagus, intestine)

Predicted location

Intracellular

Protein family

Enzymes
FDA approved drug targets
Mapped to neXtProt
Mapped to UniProt SWISS-PROT
Metabolic proteins
Predicted intracellular proteins

Chromosome

15 (43593054 - 43604901)

Ensembl ID

ENSG00000237289  (ver. 103.38)

Orthologs

-

UniProt

P12532

neXtProt

NX_P12532

Human splice variants

Protein structure