Cca

• Description: tRNA nucleotidyltransferase, maturation of the single-copy tRNACys, which lacks an encoded CCA 3' end
  
  

Gene name	cca
Synonyms	papS, ypjI
Essential	yes PubMed
Product	tRNA nucleotidyltransferase
Function	tRNA modification
MW, pI	45 kDa, 8.041
Gene length, protein length	1191 bp, 397 aa
Immediate neighbours	birA, bshA
Get the DNA and protein sequences (Barbe et al., 2009)
Genetic context This image was kindly provided by SubtiList

The gene

Basic information

• Locus tag: BSU22450

Phenotypes of a mutant

essential PubMed

Database entries

• DBTBS entry: no entry

• SubtiList entry: [1]

Categories containing this gene/protein

translation, essential genes

The protein

Basic information/ Evolution

• Catalyzed reaction/ biological activity: ATP + tRNA(n) = diphosphate + tRNA(n+1) (according to Swiss-Prot)

• Protein family: the protein is similar to the E. coli poly(A) polymerase

• Paralogous protein(s):

Extended information on the protein

• Kinetic information:

• Domains:

• Modification:

• Cofactor(s):

• Effectors of protein activity:

• Interactions:

• Localization:

Database entries

• Structure: 1MIV (Geobacillus stearothermophilus 44% identity)

• UniProt: P42977

• KEGG entry: [2]

• E.C. number: 2.7.7.25

Expression and regulation

• Operon: ypjD-dapB-mgsA-bshB1-bshA-cca-birA PubMed

• Sigma factor:

• Regulation:

• Regulatory mechanism:

• Additional information:

Biological materials

• Mutant:

• Expression vector:

• lacZ fusion:

• GFP fusion:

• two-hybrid system:

• Antibody:

References

Reviews

Heike Betat, Christiane Rammelt, Mario Mörl
tRNA nucleotidyltransferases: ancient catalysts with an unusual mechanism of polymerization.
Cell Mol Life Sci: 2010, 67(9);1447-63
[PubMed:20155482] [WorldCat.org] [DOI] (I p)

Stefan Vörtler, Mario Mörl
tRNA-nucleotidyltransferases: highly unusual RNA polymerases with vital functions.
FEBS Lett: 2010, 584(2);297-302
[PubMed:19883645] [WorldCat.org] [DOI] (I p)

Anne Neuenfeldt, Andrea Just, Heike Betat, Mario Mörl
Evolution of tRNA nucleotidyltransferases: a small deletion generated CC-adding enzymes.
Proc Natl Acad Sci U S A: 2008, 105(23);7953-8
[PubMed:18523015] [WorldCat.org] [DOI] (I p)

Yong Xiong, Thomas A Steitz
A story with a good ending: tRNA 3'-end maturation by CCA-adding enzymes.
Curr Opin Struct Biol: 2006, 16(1);12-7
[PubMed:16364630] [WorldCat.org] [DOI] (P p)

Operon and expression

Ahmed Gaballa, Gerald L Newton, Haike Antelmann, Derek Parsonage, Heather Upton, Mamta Rawat, Al Claiborne, Robert C Fahey, John D Helmann
Biosynthesis and functions of bacillithiol, a major low-molecular-weight thiol in Bacilli.
Proc Natl Acad Sci U S A: 2010, 107(14);6482-6
[PubMed:20308541] [WorldCat.org] [DOI] (I p)