RnjA

• Description: RNase J1
  
  

Gene name	rnjA
Synonyms	ykqC
Essential	yes PubMed
Product	RNase J1
Function	RNA processing
Gene expression levels in SubtiExpress: rnjA
Interactions involving this protein in SubtInteract: RNase J1
Metabolic function and regulation of this protein in SubtiPathways: Ile, Leu, Val, Coenzyme A
MW, pI	61 kDa, 5.902
Gene length, protein length	1665 bp, 555 aa
Immediate neighbours	adeC, ykzG
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

Rnases, essential genes

The gene

Basic information

• Locus tag: BSU14530

Phenotypes of a mutant

• essential PubMed
• a study from the lab of Ciaran Condon reports that rnjA is non-essential and that the mutant is strongly impaired in sporulation, genetic competence and many other phenotypes PubMed

Database entries

• DBTBS entry: no entry

• SubtiList entry: [1]

The protein

Basic information/ Evolution

• Catalyzed reaction/ biological activity: endonuclease and 5'-3' exonuclease

• Protein family: RNase J subfamily (according to Swiss-Prot)

• Paralogous protein(s): RnjB

RNAs affected by rnjA

• hbs
• thrS
• yhxA-glpP (in a RppH-dependent manner) PubMed

Extended information on the protein

• Kinetic information:

• Domains:

• Modification:

• Cofactor(s):

• Effectors of protein activity:

• Interactions:
  • part of the RNA degradosome PubMed
  • RnjA-RnjB PubMed
  • RnjA-PfkA PubMed
  • RnjA-PnpA PubMed, K(D) of the interaction: 250 nM PubMed
  • RnjA-Rny PubMed
  • RnjA-CshA PubMed

• Localization: cytoplasm (according to Swiss-Prot)

Database entries

• Structure: 3ZQ4 PubMed

• UniProt: Q45493

• KEGG entry: [2]

• E.C. number:

Additional information

• subject to Clp-dependent proteolysis upon glucose starvation PubMed
• required for thrS RNA processing, involved in maturation of the 5’-end of the16S rRNA

Expression and regulation

• Operon:

• Expression browser: rnjA PubMed

• Sigma factor:

• Regulation:

• Regulatory mechanism:

• Additional information: subject to Clp-dependent proteolysis upon glucose starvation PubMed

Biological materials

• Mutant: GP41 (rnjA under control of p(xyl)), available in Stülke lab; SSB342 (rnjA under pspac), cat, available in Harald Putzer lab

• Expression vector:
  • for chromosomal expression of RNase J1-Strep (spc): GP1034, available in Jörg Stülke's lab
  • for chromosomal expression of RNase J1-Strep (cat): GP1042, available in Jörg Stülke's lab

• lacZ fusion: pGP418 (in pAC7), available in Jörg Stülke's lab

• GFP fusion:

• two-hybrid system: B. pertussis adenylate cyclase-based bacterial two hybrid system (BACTH), available in Jörg Stülke's lab

• FLAG-tag construct:
  • GP1020 (spc, based on pGP1331), available in Jörg Stülke's lab
  • GP1075 (aphA3), available in Jörg Stülke's lab

• Antibody:

Labs working on this gene/protein

Harald Putzer, IBPC Paris, France Homepage

David Bechhofer, Mount Sinai School, New York, USA Homepage

Ciaran Condon, IBPC, Paris, France Homepage