iolI [Tue Dec 13 2016 11:16:37 GMT+0100 (CET)]

inosose isomerase, converts 2KMI to 1-keto-D-chiro-inositol

locus: BSU39680

pI: 4.66

mw: 31.00 kDa

function: myo-inositol catabolism

product: inosose isomerase,
converts 2KMI to 1-keto-D-chiro-inositol

essential: no

synonyms: yxdH

Genomic Context

categories

• [category|SW 2|Metabolism] → [category|SW 2.2|Carbon metabolism] → [category|SW 2.2.2|Utilization of specific carbon sources] → [category|SW 2.2.2.16|Utilization of inositol]

[SW|Categories] containing this gene/protein

• [SW|utilization of specific carbon sources]

This gene is a member of the following [SW|regulons]

• [SW|CcpA regulon], [SW|IolR regulon]

Gene

Coordinates on the chromosome (coding sequence): 4,073,974 -> 4,074,810

The protein

Catalyzed reaction/ biological activity

• 2,4,6/3,5-pentahydroxycyclohexanone = 2,3,5/4,6-pentahydroxycyclohexanone (according to Swiss-Prot)

Protein family

• iolI family (according to Swiss-Prot)

Structure

• [PDB|1L60]

Expression and Regulation

Operon

• ''[protein|search|iolA]-[protein|search|iolB]-[protein|search|iolC]-[protein|search|iolD]-[protein|search|iolE]-[protein|search|iolF]-[protein|search|iolG]-[protein|search|iolH]-[protein|search|iolI]-[protein|search|iolJ]'' [Pubmed|9226270]

[SW|Sigma factor]

• [protein|search|SigA] [Pubmed|9226270]

Regulation

• repressed by glucose ([protein|search|CcpA]) [Pubmed|10666464]
• induced by inositol ([protein|search|IolR]) [Pubmed|9887260,9226270]

Regulatory mechanism

• [protein|search|IolR]: transcription repression [Pubmed|9887260,9226270]
• [protein|search|CcpA]: transcription repression [Pubmed|10666464]

Labs working on this gene/protein

• [SW|Yasutaro Fujita], University of Fukuyama, Japan
• [[Ken-ichi Yoshida]], Kobe University, Japan

References

• 9226270,9887260,18310071