YyaF

• Description: GTP-binding protein/ GTPase
  
  

Gene name	yyaF
Synonyms
Essential	no
Product	GTP-binding protein/ GTPase
Function	unknown
Gene expression levels in SubtiExpress: yyaF
MW, pI	39 kDa, 4.659
Gene length, protein length	1098 bp, 366 aa
Immediate neighbours	rpsF, yyaE
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

GTP-binding proteins, proteins of unknown function

This gene is a member of the following regulons

ComK regulon

The gene

Basic information

• Locus tag: BSU40920

Database entries

• BsubCyc: BSU40920

• DBTBS entry: [1]

• SubtiList entry: [2]

The protein

Basic information/ Evolution

• Catalyzed reaction/ biological activity: Binds and hydrolyzes GTP and readily exchanges GDP for GTP

• Protein family: EngD subfamily (according to Swiss-Prot) Era/Obg family

• Paralogous protein(s): Era, Obg, YphC, YsxC, RbgA, YqeH, ThdF, YyaF, YnbA

Extended information on the protein

• Kinetic information:

• Domains:

• Modification:

• Cofactor(s):

• Effectors of protein activity:

• Interactions:

• Localization:

Database entries

• BsubCyc: BSU40920

• Structure:

• UniProt: P37518

• KEGG entry: [3]

• E.C. number:

Expression and regulation

• Operon: yyaF-rpsF-ssbA-rpsR PubMed

• Expression browser: yyaF PubMed

• Sigma factor:

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

• Additional information:
  • number of protein molecules per cell (minimal medium with glucose and ammonium): 1515 PubMed
  • number of protein molecules per cell (complex medium with amino acids, without glucose): 3274 PubMed

Biological materials

• Mutant:

• Expression vector:
  • for expression/ purification from B. subtilis with N-terminal Strep-tag, for SPINE, in pGP380: pGP836, available in Stülke lab
  • for expression/ purification from E. coli with N-terminal His-tag, in pWH844: pGP844, available in Stülke lab

• lacZ fusion:

• GFP fusion:

• two-hybrid system:

• Antibody:

Labs working on this gene/protein

Naotake Ogasawara, Nara, Japan

References

Reviews

Natalie Verstraeten, Maarten Fauvart, Wim Versées, Jan Michiels
The universally conserved prokaryotic GTPases.
Microbiol Mol Biol Rev: 2011, 75(3);507-42, second and third pages of table of contents
[PubMed:21885683] [WorldCat.org] [DOI] (I p)

Original publications

Cordula Lindner, Reindert Nijland, Mariska van Hartskamp, Sierd Bron, Leendert W Hamoen, Oscar P Kuipers
Differential expression of two paralogous genes of Bacillus subtilis encoding single-stranded DNA binding protein.
J Bacteriol: 2004, 186(4);1097-105
[PubMed:14762004] [WorldCat.org] [DOI] (P p)

Takuya Morimoto, Pek Chin Loh, Tomohiro Hirai, Kei Asai, Kazuo Kobayashi, Shigeki Moriya, Naotake Ogasawara
Six GTP-binding proteins of the Era/Obg family are essential for cell growth in Bacillus subtilis.
Microbiology (Reading): 2002, 148(Pt 11);3539-3552
[PubMed:12427945] [WorldCat.org] [DOI] (P p)

Christine Eymann, Georg Homuth, Christian Scharf, Michael Hecker
Bacillus subtilis functional genomics: global characterization of the stringent response by proteome and transcriptome analysis.
J Bacteriol: 2002, 184(9);2500-20
[PubMed:11948165] [WorldCat.org] [DOI] (P p)

Mitsuo Ogura, Hirotake Yamaguchi, Kazuo Kobayashi, Naotake Ogasawara, Yasutaro Fujita, Teruo Tanaka
Whole-genome analysis of genes regulated by the Bacillus subtilis competence transcription factor ComK.
J Bacteriol: 2002, 184(9);2344-51
[PubMed:11948146] [WorldCat.org] [DOI] (P p)