Sco

• Description: accessory lipoprotein required for assembly of the Cu(A) center of cytochrome c oxidase caa3
  
  

Gene name	ypmQ
Synonyms
Essential	no
Product	oxidoreductase
Function	maturation of cytochrome C oxidase caa3
Interactions involving this protein in SubtInteract: Sco
MW, pI	21 kDa, 4.81
Gene length, protein length	579 bp, 193 aa
Immediate neighbours	ypmR, ypmP
Get the DNA and protein sequences (Barbe et al., 2009)
Genetic context This image was kindly provided by SubtiList

Categories containing this gene/protein

respiration, membrane proteins

The gene

Basic information

• Locus tag: BSU21750

Expression

Database entries

• DBTBS entry: no entry

• SubtiList entry: [1]

The protein

Basic information/ Evolution

• Catalyzed reaction/ biological activity: electron transfer to the maturing oxidase CtaC PubMed

• Protein family:

• Paralogous protein(s):

Extended information on the protein

• Kinetic information:

• Domains:

• Modification:

• Cofactor(s): contains copper bound by two cysteines and a histidine residue PubMed

• Effectors of protein activity:

• Interactions:
  • Sco-CtaC PubMed

• Localization: cell membrane PubMed

Database entries

• Structure: 1XZO

• UniProt: P54178

• KEGG entry: [2]

• E.C. number:

Expression and regulation

• Operon:

• Sigma factor:

• Regulation:

• Regulatory mechanism:

• Additional information:

Biological materials

• Mutant:

• Expression vector:

• lacZ fusion:

• GFP fusion:

• two-hybrid system:

• Antibody:

References

Additional publications: PubMed

Mark Lai, Katherine C Yam, Diann Andrews, Bruce C Hill
Copper binding traps the folded state of the SCO protein from Bacillus subtilis.
Biochim Biophys Acta: 2012, 1824(2);292-302
[PubMed:22036877] [WorldCat.org] [DOI] (P p)

Bruce C Hill, Diann Andrews
Differential affinity of BsSCO for Cu(II) and Cu(I) suggests a redox role in copper transfer to the Cu(A) center of cytochrome c oxidase.
Biochim Biophys Acta: 2012, 1817(6);948-54
[PubMed:21945854] [WorldCat.org] [DOI] (P p)

Brian Bennett, Bruce C Hill
Avoiding premature oxidation during the binding of Cu(II) to a dithiolate site in BsSCO. A rapid freeze-quench EPR study.
FEBS Lett: 2011, 585(6);861-4
[PubMed:21333651] [WorldCat.org] [DOI] (I p)

Gnana S Siluvai, Mary Mayfield, Mark J Nilges, Serena Debeer George, Ninian J Blackburn
Anatomy of a red copper center: spectroscopic identification and reactivity of the copper centers of Bacillus subtilis Sco and its Cys-to-Ala variants.
J Am Chem Soc: 2010, 132(14);5215-26
[PubMed:20232870] [WorldCat.org] [DOI] (I p)

Gnana S Siluvai, Michiko M Nakano, Mary Mayfield, Mark J Nilges, Ninian J Blackburn
H135A controls the redox activity of the Sco copper center. Kinetic and spectroscopic studies of the His135Ala variant of Bacillus subtilis Sco.
Biochemistry: 2009, 48(51);12133-44
[PubMed:19921776] [WorldCat.org] [DOI] (I p)

David E Davidson, Bruce C Hill
Stability of oxidized, reduced and copper bound forms of Bacillus subtilis Sco.
Biochim Biophys Acta: 2009, 1794(2);275-81
[PubMed:19027886] [WorldCat.org] [DOI] (P p)

Luisa Andruzzi, Michiko Nakano, Mark J Nilges, Ninian J Blackburn
Spectroscopic studies of metal binding and metal selectivity in Bacillus subtilis BSco, a Homologue of the Yeast Mitochondrial Protein Sco1p.
J Am Chem Soc: 2005, 127(47);16548-58
[PubMed:16305244] [WorldCat.org] [DOI] (P p)

Jenny Bengtsson, Claes von Wachenfeldt, Lena Winstedt, Per Nygaard, Lars Hederstedt
CtaG is required for formation of active cytochrome c oxidase in Bacillus subtilis.
Microbiology (Reading): 2004, 150(Pt 2);415-425
[PubMed:14766920] [WorldCat.org] [DOI] (P p)

Diann Andrews, Jennifer Rattenbury, Vijay Anand, Neil R Mattatall, Bruce C Hill
Expression, purification, and characterization of BsSco, an accessory protein involved in the assembly of cytochrome c oxidase in Bacillus subtilis.
Protein Expr Purif: 2004, 33(1);57-65
[PubMed:14680962] [WorldCat.org] [DOI] (P p)

N R Mattatall, J Jazairi, B C Hill
Characterization of YpmQ, an accessory protein required for the expression of cytochrome c oxidase in Bacillus subtilis.
J Biol Chem: 2000, 275(37);28802-9
[PubMed:10837475] [WorldCat.org] [DOI] (P p)