Difference between revisions of "Phosphatase Subfamily TIMM50"
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| − | TIMM50 (or TIM50) is named after translocase of inner mitochondrial membrane 50 homolog (S. cerevisiae) <cite>Yamamoto</cite> <cite>Meinecke</cite>. It is a subunit of the TIM23 complex that | + | TIMM50 (or TIM50) is named after translocase of inner mitochondrial membrane 50 homolog (S. cerevisiae) <cite>Yamamoto</cite> <cite>Meinecke</cite>. It is a subunit of the TIM23 complex that translocates proteins across the outer and inner mitochondrial membranes. It lacks the DxDx[T|V] motif at catalytic site, and so is a predicted pseudophosphatase, but has been reported to have catalytic activity. |
===Evolution=== | ===Evolution=== | ||
| − | TIMM50 is conserved from yeast to human. | + | TIMM50 is conserved from yeast to human. The single human member is [http://www.ncbi.nlm.nih.gov/gene/92609 Human TIMM50]. |
===Domain Structure=== | ===Domain Structure=== | ||
===Catalytic activity=== | ===Catalytic activity=== | ||
| − | TIMM50 has been show to possess a phosphatase activity toward both phospho-serine/threonine and phospho-tyrosine in vitro assay <cite>Guo04</cite>. | + | TIMM50 has been show to possess a phosphatase activity toward both phospho-serine/threonine and phospho-tyrosine in an ''in vitro'' assay <cite>Guo04</cite>. |
===Related Kinases=== | ===Related Kinases=== | ||
1) Raf. High throughput yeast two-hybrid assay show Raf kinase can interact with TIMM50, as well as FCP1. The paper also guessed Raf is the substrate of TIMM50 <cite>Raf</cite>, but actually TIMM50 lacks the catalytic motif. (Note: Raf also interacts with FCP1 in the paper). | 1) Raf. High throughput yeast two-hybrid assay show Raf kinase can interact with TIMM50, as well as FCP1. The paper also guessed Raf is the substrate of TIMM50 <cite>Raf</cite>, but actually TIMM50 lacks the catalytic motif. (Note: Raf also interacts with FCP1 in the paper). | ||
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===References=== | ===References=== | ||
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#Meinecke pmid=16763150 | #Meinecke pmid=16763150 | ||
</biblio> | </biblio> | ||
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Revision as of 04:53, 9 May 2016
Phosphatase Classification: FCP: TIMM50
TIMM50 (or TIM50) is named after translocase of inner mitochondrial membrane 50 homolog (S. cerevisiae) [1] [2]. It is a subunit of the TIM23 complex that translocates proteins across the outer and inner mitochondrial membranes. It lacks the DxDx[T|V] motif at catalytic site, and so is a predicted pseudophosphatase, but has been reported to have catalytic activity.
Evolution
TIMM50 is conserved from yeast to human. The single human member is Human TIMM50.
Domain Structure
Catalytic activity
TIMM50 has been show to possess a phosphatase activity toward both phospho-serine/threonine and phospho-tyrosine in an in vitro assay [3].
Related Kinases
1) Raf. High throughput yeast two-hybrid assay show Raf kinase can interact with TIMM50, as well as FCP1. The paper also guessed Raf is the substrate of TIMM50 [4], but actually TIMM50 lacks the catalytic motif. (Note: Raf also interacts with FCP1 in the paper).
References
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