smpB [Thu Oct 01 2015 13:51:44 GMT+0200 (CEST)]

tmRNA-binding protein

Locus: BSU33600

Isoelectric point: 10.00

Molecular weight: 17.00 kDa

Function: trans-translation

Product: tmRNA-binding protein

Essential: no

Synonyms: yvaI

Genomic Context

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Categories containing this gene/protein

• Information processing → Protein synthesis, modification and degradation → Translation → Translation/ other

Categories containing this gene/protein

• translation, sporulation/ other

Gene

Coordinates on the chromosome (coding sequence): 3,451,248 -> 3,451,718

Phenotypes of a mutant

• impaired growth at high and low temperatures PubMed
• inactivation of smpB reduces sporulation efficiency to 23% that of wild type cells; delayed entry into sporulation PubMed

The protein

Protein family

• smpB family (according to Swiss-Prot)

Structure

• 1P6V (from Aquifex aeolicus, 55% identity, complex with the tRNA domain of SsrA) PubMed

Localization

• cytoplasm (according to Swiss-Prot)

Interactions

• SmpB-SsrA

Expression and Regulation

Operon

• secG-yvaK-rnr-smpB-ssrA PubMed
• yvaK-rnr-smpB-ssrA PubMed
• smpB-ssrA PubMed

Regulation

• yvaK: SigB PubMed

Labs working on this gene/protein

• Chet Price, Davis, USA homepage

References

Reviews

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Original publications

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