CotA

• Description: laccase, bilirubin oxidase, spore coat protein (outer)
  
  

Gene name	cotA
Synonyms	pig
Essential	no
Product	laccase, bilirubin oxidase
Function	resistance of the spore
Gene expression levels in SubtiExpress: cotA
MW, pI	58 kDa, 5.89
Gene length, protein length	1539 bp, 513 aa
Immediate neighbours	yeaA, gabP
Get the DNA and protein sequences (Barbe et al., 2009)
Genetic context This image was kindly provided by SubtiList
Expression at a glance   PubMed

Categories containing this gene/protein

sporulation proteins

This gene is a member of the following regulons

SigK regulon

The gene

Basic information

• Locus tag: BSU06300

Database entries

• DBTBS entry: [1]

• SubtiList entry: [2]

The protein

Basic information/ Evolution

• Catalyzed reaction/ biological activity:

• Protein family:

• Paralogous protein(s):

Extended information on the protein

• Kinetic information:

• Domains:

• Modification:

• Cofactor(s):

• Effectors of protein activity:

• Interactions:

• Localization:
  • outer spore coat, more abundant at the mother cell-distal pole of the forespore PubMed

Database entries

• Structure: 2BHF (reduced form)

• UniProt: P07788

• KEGG entry: [3]

• E.C. number:

Expression and regulation

• Operon: cotA (according to DBTBS)

• Expression browser: cotA PubMed

• Sigma factor: SigK PubMed

• Regulation:

• Regulatory mechanism:

• Additional information:

Biological materials

• Mutant:
  • 1S101 ( cotA::cat), PubMed, available at BGSC
  • 1S134 ( cotA::kan), PubMed, available at BGSC

• Expression vector:

• lacZ fusion:

• GFP fusion:

• two-hybrid system:

• Antibody:

References

Additional publications: PubMed

Catarina S Silva, João M Damas, Zhenjia Chen, Vânia Brissos, Lígia O Martins, Cláudio M Soares, Peter F Lindley, Isabel Bento
The role of Asp116 in the reductive cleavage of dioxygen to water in CotA laccase: assistance during the proton-transfer mechanism.
Acta Crystallogr D Biol Crystallogr: 2012, 68(Pt 2);186-93
[PubMed:22281748] [WorldCat.org] [DOI] (I p)

André T Fernandes, Manuela M Pereira, Catarina S Silva, Peter F Lindley, Isabel Bento, Eduardo Pinho Melo, Lígia O Martins
The removal of a disulfide bridge in CotA-laccase changes the slower motion dynamics involved in copper binding but has no effect on the thermodynamic stability.
J Biol Inorg Chem: 2011, 16(4);641-51
[PubMed:21369750] [WorldCat.org] [DOI] (I p)

Isabel Bento, Catarina S Silva, Zhenjia Chen, Lígia O Martins, Peter F Lindley, Cláudio M Soares
Mechanisms underlying dioxygen reduction in laccases. Structural and modelling studies focusing on proton transfer.
BMC Struct Biol: 2010, 10;28
[PubMed:20822511] [WorldCat.org] [DOI] (I e)

Nirupama Gupta, Edgardo T Farinas
Directed evolution of CotA laccase for increased substrate specificity using Bacillus subtilis spores.
Protein Eng Des Sel: 2010, 23(8);679-82
[PubMed:20551082] [WorldCat.org] [DOI] (I p)

Zhenjia Chen, Paulo Durão, Catarina S Silva, Manuela M Pereira, Smilja Todorovic, Peter Hildebrandt, Isabel Bento, Peter F Lindley, Lígia O Martins
The role of Glu498 in the dioxygen reactivity of CotA-laccase from Bacillus subtilis.
Dalton Trans: 2010, 39(11);2875-82
[PubMed:20200715] [WorldCat.org] [DOI] (I p)

Daisuke Imamura, Ritsuko Kuwana, Hiromu Takamatsu, Kazuhito Watabe
Localization of proteins to different layers and regions of Bacillus subtilis spore coats.
J Bacteriol: 2010, 192(2);518-24
[PubMed:19933362] [WorldCat.org] [DOI] (I p)

Leif Steil, Mónica Serrano, Adriano O Henriques, Uwe Völker
Genome-wide analysis of temporally regulated and compartment-specific gene expression in sporulating cells of Bacillus subtilis.
Microbiology (Reading): 2005, 151(Pt 2);399-420
[PubMed:15699190] [WorldCat.org] [DOI] (P p)

M F Hullo, I Moszer, A Danchin, I Martin-Verstraete
CotA of Bacillus subtilis is a copper-dependent laccase.
J Bacteriol: 2001, 183(18);5426-30
[PubMed:11514528] [WorldCat.org] [DOI] (P p)

L Zheng, R Halberg, S Roels, H Ichikawa, L Kroos, R Losick
Sporulation regulatory protein GerE from Bacillus subtilis binds to and can activate or repress transcription from promoters for mother-cell-specific genes.
J Mol Biol: 1992, 226(4);1037-50
[PubMed:1518043] [WorldCat.org] [DOI] (P p)

K Sandman, L Kroos, S Cutting, P Youngman, R Losick
Identification of the promoter for a spore coat protein gene in Bacillus subtilis and studies on the regulation of its induction at a late stage of sporulation.
J Mol Biol: 1988, 200(3);461-73
[PubMed:3135411] [WorldCat.org] [DOI] (P p)

W Donovan, L B Zheng, K Sandman, R Losick
Genes encoding spore coat polypeptides from Bacillus subtilis.
J Mol Biol: 1987, 196(1);1-10
[PubMed:2821284] [WorldCat.org] [DOI] (P p)