RbgA

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  • Description: assembly of the 50S subunit of the ribosome

Gene name rbgA
Synonyms ylqF
Essential yes PubMed
Product GTPase
Function ribosome assembly
Gene expression levels in SubtiExpress: rbgA
MW, pI 31 kDa, 9.528
Gene length, protein length 846 bp, 282 aa
Immediate neighbours rplS, rnhB
Sequences Protein DNA DNA_with_flanks
Genetic context
YlqF context.gif
This image was kindly provided by SubtiList
Expression at a glance   PubMed
RbgA expression.png















Categories containing this gene/protein

translation, essential genes, GTP-binding proteins

This gene is a member of the following regulons

The gene

Basic information

  • Locus tag: BSU16050

Phenotypes of a mutant

  • essential PubMed
  • depletion confers a slow growth phenotype, and induces an abnormality of the in vivo ribosome profile, with an increased level of 45S precursors and a decreased level of 70S ribosomes PubMed
  • premature 45S particles accumulated in YlqF-depleted cells lack several proteins, including L16, L28, L33, L35 and L36 PubMed

Database entries

  • DBTBS entry: no entry
  • SubtiList entry: [1]

Additional information

The protein

Basic information/ Evolution

  • Catalyzed reaction/ biological activity: Binds and hydrolyzes GTP and readily exchanges GDP for GTP
  • Protein family: MTG1 subfamily (according to Swiss-Prot) Era/Obg family

Extended information on the protein

  • Kinetic information:
  • Domains:
    • RNA-binding domain at the C-terminus PubMed
  • Modification:
  • Effectors of protein activity:

Database entries

  • KEGG entry: [2]
  • E.C. number:

Additional information

Expression and regulation

  • Operon:
  • Regulation:
  • Regulatory mechanism:
  • Additional information:

Biological materials

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

Labs working on this gene/protein

Naotake Ogasawara, Nara, Japan

Your additional remarks

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)

Robert A Britton
Role of GTPases in bacterial ribosome assembly.
Annu Rev Microbiol: 2009, 63;155-76
[PubMed:19575570] [WorldCat.org] [DOI] (I p)


Original publications

Ahmad Jomaa, Nikhil Jain, Joseph H Davis, James R Williamson, Robert A Britton, Joaquin Ortega
Functional domains of the 50S subunit mature late in the assembly process.
Nucleic Acids Res: 2014, 42(5);3419-35
[PubMed:24335279] [WorldCat.org] [DOI] (I p)

Ningning Li, Yuling Chen, Qiang Guo, Yixiao Zhang, Yi Yuan, Chengying Ma, Haiteng Deng, Jianlin Lei, Ning Gao
Cryo-EM structures of the late-stage assembly intermediates of the bacterial 50S ribosomal subunit.
Nucleic Acids Res: 2013, 41(14);7073-83
[PubMed:23700310] [WorldCat.org] [DOI] (I p)

Megha Gulati, Nikhil Jain, Baskaran Anand, Balaji Prakash, Robert A Britton
Mutational analysis of the ribosome assembly GTPase RbgA provides insight into ribosome interaction and ribosome-stimulated GTPase activation.
Nucleic Acids Res: 2013, 41(5);3217-27
[PubMed:23325847] [WorldCat.org] [DOI] (I p)

David Achila, Megha Gulati, Nikhil Jain, Robert A Britton
Biochemical characterization of ribosome assembly GTPase RbgA in Bacillus subtilis.
J Biol Chem: 2012, 287(11);8417-23
[PubMed:22267738] [WorldCat.org] [DOI] (I p)

Laura Schaefer, William C Uicker, Catherine Wicker-Planquart, Anne-Emmanuelle Foucher, Jean-Michel Jault, Robert A Britton
Multiple GTPases participate in the assembly of the large ribosomal subunit in Bacillus subtilis.
J Bacteriol: 2006, 188(23);8252-8
[PubMed:16997968] [WorldCat.org] [DOI] (P p)

William C Uicker, Laura Schaefer, Robert A Britton
The essential GTPase RbgA (YlqF) is required for 50S ribosome assembly in Bacillus subtilis.
Mol Microbiol: 2006, 59(2);528-40
[PubMed:16390447] [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)