XylB

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  • Description: xylulokinase

Gene name xylB
Synonyms yncA
Essential no
Product xylulokinase
Function utilization of xylan and xylose
Metabolic function and regulation of this protein in SubtiPathways:
Sugar catabolism
MW, pI 55 kDa, 6.459
Gene length, protein length 1497 bp, 499 aa
Immediate neighbours xylA, yncB
Get the DNA and protein sequences
(Barbe et al., 2009)
Genetic context
XylB context.gif
This image was kindly provided by SubtiList







The gene

Basic information

  • Locus tag: BSU17610

Phenotypes of a mutant

Database entries

  • DBTBS entry: [1]
  • SubtiList entry: [2]

Additional information

The protein

Basic information/ Evolution

  • Catalyzed reaction/ biological activity: ATP + D-xylulose = ADP + D-xylulose 5-phosphate (according to Swiss-Prot)
  • Protein family: FGGY kinase family (according to Swiss-Prot)
  • Paralogous protein(s):

Extended information on the protein

  • Kinetic information:
  • Domains:
  • Modification:
  • Cofactor(s):
  • Effectors of protein activity:
  • Interactions:
  • Localization:

Database entries

  • Structure:
  • KEGG entry: [3]

Additional information

Expression and regulation

  • Regulation: repressed by glucose (CcpA) , carbon catabolite repression (CcpA), induction by xylose (XylR)
  • Regulatory mechanism: CcpA: transcription repression, CcpA: transcription repression, XylR: transcription repression
  • Additional information:

Biological materials

  • Mutant:
  • Expression vector:
  • lacZ fusion:
  • GFP fusion:
  • two-hybrid system:
  • Antibody:

Labs working on this gene/protein

Wolfgang Hillen, Erlangen University, Germany Homepage

Your additional remarks

References