Difference between revisions of "AddB"
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* '''Operon:''' ''[[addB]]-[[addA]]'' {{PubMed|1646786}} | * '''Operon:''' ''[[addB]]-[[addA]]'' {{PubMed|1646786}} | ||
| − | * '''[ | + | * '''Expression browser:''' [http://genome.jouy.inra.fr/cgi-bin/seb/viewdetail.py?id=addB_1136320_1139820_1 addB] {{PubMed|22383849}} |
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| + | * '''Sigma factor:''' [[SigA]] {{PubMed|7746142}} | ||
* '''Regulation:''' | * '''Regulation:''' | ||
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* '''Regulatory mechanism:''' | * '''Regulatory mechanism:''' | ||
| − | * '''Additional information:''' | + | * '''Additional information:''' |
=Biological materials = | =Biological materials = | ||
Revision as of 17:23, 12 April 2012
- Description: ATP-dependent deoxyribonuclease (subunit B)
| Gene name | addB |
| Synonyms | |
| Essential | no |
| Product | ATP-dependent deoxyribonuclease (subunit B)) |
| Function | DNA repair/ recombination |
| Interactions involving this protein in SubtInteract: AddB | |
| MW, pI | 134 kDa, 5.39 |
| Gene length, protein length | 3498 bp, 1166 aa |
| Immediate neighbours | yhjR, addA |
| Get the DNA and protein sequences (Barbe et al., 2009) | |
Genetic context 
This image was kindly provided by SubtiList
| |
Contents
Categories containing this gene/protein
DNA repair/ recombination, genetic competence
This gene is a member of the following regulons
The gene
Basic information
- Locus tag: BSU10620
Phenotypes of a mutant
Database entries
- DBTBS entry: [1]
- SubtiList entry: [2]
Additional information
The protein
Basic information/ Evolution
- Catalyzed reaction/ biological activity:
- the enzyme is functional as a heterodimer of the AddA and AddB subunits, that it is a rapid and processive DNA helicase, and that it catalyses DNA unwinding using one single-stranded DNA motor of 3'→5' polarity located in the AddA subunit PubMed
- the AddB subunit contains a second putative ATP-binding pocket, but this does not contribute to the observed helicase activity and may instead be involved in the recognition of recombination hotspot sequences PubMed
- Protein family: uvrD-like helicase C-terminal domain (according to Swiss-Prot)
- Paralogous protein(s):
Extended information on the protein
- Kinetic information:
- Domains:
- Modification:
- Cofactor(s):
- Effectors of protein activity:
Database entries
- Structure: 1Y26 (the riboswitch in complex with adenine)
- UniProt: P23477
- KEGG entry: [3]
- E.C. number:
Additional information
Expression and regulation
- Regulatory mechanism:
- Additional information:
Biological materials
- Mutant: GP1106 (addAB, spc), available in Stülke lab
- Expression vector:
- lacZ fusion:
- GFP fusion:
- two-hybrid system:
- Antibody:
Labs working on this gene/protein
- Mark Dillingham, Bristol, U.K. (homepage)
Your additional remarks
References
Reviews
Joseph T P Yeeles, Mark S Dillingham
The processing of double-stranded DNA breaks for recombinational repair by helicase-nuclease complexes.
DNA Repair (Amst): 2010, 9(3);276-85
[PubMed:20116346]
[WorldCat.org]
[DOI]
(I p)
Original publications
Additional publications: PubMed
Natalia Fili, Christopher P Toseland, Mark S Dillingham, Martin R Webb, Justin E Molloy
A single-molecule approach to visualize the unwinding activity of DNA helicases.
Methods Mol Biol: 2011, 778;193-214
[PubMed:21809208]
[WorldCat.org]
[DOI]
(I p)
Natali Fili, Gregory I Mashanov, Christopher P Toseland, Christopher Batters, Mark I Wallace, Joseph T P Yeeles, Mark S Dillingham, Martin R Webb, Justin E Molloy
Visualizing helicases unwinding DNA at the single molecule level.
Nucleic Acids Res: 2010, 38(13);4448-57
[PubMed:20350930]
[WorldCat.org]
[DOI]
(I p)
Joseph T P Yeeles, Richard Cammack, Mark S Dillingham
An iron-sulfur cluster is essential for the binding of broken DNA by AddAB-type helicase-nucleases.
J Biol Chem: 2009, 284(12);7746-55
[PubMed:19129187]
[WorldCat.org]
[DOI]
(P p)
Joseph T P Yeeles, Mark S Dillingham
A dual-nuclease mechanism for DNA break processing by AddAB-type helicase-nucleases.
J Mol Biol: 2007, 371(1);66-78
[PubMed:17570399]
[WorldCat.org]
[DOI]
(P p)
Alexander Serganov, Yu-Ren Yuan, Olga Pikovskaya, Anna Polonskaia, Lucy Malinina, Anh Tuân Phan, Claudia Hobartner, Ronald Micura, Ronald R Breaker, Dinshaw J Patel
Structural basis for discriminative regulation of gene expression by adenine- and guanine-sensing mRNAs.
Chem Biol: 2004, 11(12);1729-41
[PubMed:15610857]
[WorldCat.org]
[DOI]
(P p)
F Chédin, S D Ehrlich, S C Kowalczykowski
The Bacillus subtilis AddAB helicase/nuclease is regulated by its cognate Chi sequence in vitro.
J Mol Biol: 2000, 298(1);7-20
[PubMed:10756102]
[WorldCat.org]
[DOI]
(P p)
F Chédin, P Noirot, V Biaudet, S D Ehrlich
A five-nucleotide sequence protects DNA from exonucleolytic degradation by AddAB, the RecBCD analogue of Bacillus subtilis.
Mol Microbiol: 1998, 29(6);1369-77
[PubMed:9781875]
[WorldCat.org]
[DOI]
(P p)
B J Haijema, L W Hamoen, J Kooistra, G Venema, D van Sinderen
Expression of the ATP-dependent deoxyribonuclease of Bacillus subtilis is under competence-mediated control.
Mol Microbiol: 1995, 15(2);203-11
[PubMed:7746142]
[WorldCat.org]
[DOI]
(P p)
J Kooistra, B J Haijema, G Venema
The Bacillus subtilis addAB genes are fully functional in Escherichia coli.
Mol Microbiol: 1993, 7(6);915-23
[PubMed:8387145]
[WorldCat.org]
[DOI]
(P p)
J Kooistra, G Venema
Cloning, sequencing, and expression of Bacillus subtilis genes involved in ATP-dependent nuclease synthesis.
J Bacteriol: 1991, 173(12);3644-55
[PubMed:1646786]
[WorldCat.org]
[DOI]
(P p)
