MiaA

• Description: tRNA isopentenylpyrophosphate transferase
  
  

Gene name	miaA
Synonyms
Essential	no
Product	tRNA isopentenylpyrophosphate transferase
Function	tRNA modification
Gene expression levels in SubtiExpress: miaA
MW, pI	35 kDa, 6.002
Gene length, protein length	942 bp, 314 aa
Immediate neighbours	ymaF, hfq
Sequences	Protein DNA Advanced_DNA
Genetic context This image was kindly provided by SubtiList
Expression at a glance   PubMed

Categories containing this gene/protein

translation

The gene

Basic information

• Locus tag: BSU17330

Database entries

• DBTBS entry: no entry

• SubtiList entry: [1]

Additional information

• A mutation was found in this gene after evolution under relaxed selection for sporulation PubMed

The protein

Basic information/ Evolution

• Catalyzed reaction/ biological activity: Isopentenyl diphosphate + tRNA = diphosphate + tRNA containing 6-isopentenyladenosine (according to Swiss-Prot)

• Protein family: IPP transferase family (according to Swiss-Prot)

• Paralogous protein(s):

Extended information on the protein

• Kinetic information:

• Domains:

• Modification:

• Cofactor(s):

• Effectors of protein activity:

• Interactions:

• Localization:

Database entries

• Structure:

• UniProt: O31795

• KEGG entry: [2]

• E.C. number: 2.5.1.8

Expression and regulation

• Operon:

• Expression browser: miaA PubMed

• Sigma factor:

• Regulation:

• Regulatory mechanism:

• Additional information:

Biological materials

• Mutant:

• Expression vector:

• lacZ fusion:

• GFP fusion:

• two-hybrid system:

• Antibody:

References

The corresponding gene/ protein in other bacteria

J Zhao, H E Leung, M E Winkler
The miaA mutator phenotype of Escherichia coli K-12 requires recombination functions.
J Bacteriol: 2001, 183(5);1796-800
[PubMed:11160115] [WorldCat.org] [DOI] (P p)

J M Durand, G R Björk, A Kuwae, M Yoshikawa, C Sasakawa
The modified nucleoside 2-methylthio-N6-isopentenyladenosine in tRNA of Shigella flexneri is required for expression of virulence genes.
J Bacteriol: 1997, 179(18);5777-82
[PubMed:9294434] [WorldCat.org] [DOI] (P p)

J Caillet, L Droogmans
Molecular cloning of the Escherichia coli miaA gene involved in the formation of delta 2-isopentenyl adenosine in tRNA.
J Bacteriol: 1988, 170(9);4147-52
[PubMed:3045085] [WorldCat.org] [DOI] (P p)