ScpB

• Description: DNA segregation and condensation protein
  
  

Gene name	scpB
Synonyms	ypuH
Essential	no
Product	DNA segregation and condensation protein
Function	maintenance of chromosome structure
Gene expression levels in SubtiExpress: scpB
Interactions involving this protein in SubtInteract: ScpB
MW, pI	21 kDa, 4.25
Gene length, protein length	591 bp, 197 aa
Immediate neighbours	ypuI, scpA
Sequences	Protein DNA DNA_with_flanks
Genetic context This image was kindly provided by SubtiList
Expression at a glance   PubMed

Categories containing this gene/protein

DNA condensation/ segregation

This gene is a member of the following regulons

stringent response

The gene

Basic information

• Locus tag: BSU23210

Database entries

• DBTBS entry: [1]

• SubtiList entry: [2]

The protein

Basic information/ Evolution

• Catalyzed reaction/ biological activity:

• Protein family: scpB family (according to Swiss-Prot)

• Paralogous protein(s):

Extended information on the protein

• Kinetic information:

• Domains:

• Modification:

• Cofactor(s):

• Effectors of protein activity:

• Interactions:
  • forms dimers PubMed
  • ScpB-Smc PubMed, this interaction takes place only in the presence of ScpA PubMed
  • ScpA-ScpB PubMed

• Localization:
  • nucleoid (Multiple) PubMed
  • the (Smc)2-ScpA-ScpB complex forms two bipolar assemblies on the chromosome, one in each cell half PubMed

Database entries

• Structure:
  • 4I98 (complex between ScpA (aa 1-160)-ScpB (aa 1-183) PubMed

• UniProt: P35155

• KEGG entry: [3]

• E.C. number:

Expression and regulation

• Operon: scpA-scpB-ypuI PubMed

• Expression browser: scpB PubMed

• Sigma factor:

• Regulation:
  • RelA dependent downregulation (Class I) during stringent response PubMed

• Regulatory mechanism:

• Additional information:

Biological materials

• Mutant:

• Expression vector:

• lacZ fusion:

• GFP fusion:

• two-hybrid system:

• Antibody:

References

Reviews

Rodrigo Reyes-Lamothe, Emilien Nicolas, David J Sherratt
Chromosome replication and segregation in bacteria.
Annu Rev Genet: 2012, 46;121-43
[PubMed:22934648] [WorldCat.org] [DOI] (I p)