Difference between revisions of "PurB"
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=Expression and regulation= | =Expression and regulation= | ||
| − | * '''Operon:''' | + | * '''Operon:''' ''[[purE]]-[[purK]]-[[purB]]-[[purC]]-[[purS]]-[[purQ]]-[[purL]]-[[purF]]-[[purM]]-[[purN]]-[[purH]]-[[purD]]'' [http://www.ncbi.nlm.nih.gov/sites/entrez/3036807 PubMed] |
| − | * '''[[Sigma factor]]:''' | + | * '''[[Sigma factor]]:''' [[SigA]] [http://www.ncbi.nlm.nih.gov/sites/entrez/3036807 PubMed] |
* '''Regulation:''' | * '''Regulation:''' | ||
| + | ** repressed in the presence of adenine or adenosine([[PurR]]) [http://www.ncbi.nlm.nih.gov/sites/entrez/2536750 PubMed] | ||
| + | ** repressed in the presence of guanine([[G-box]]) [http://www.ncbi.nlm.nih.gov/sites/entrez/3036807 PubMed] | ||
* '''Regulatory mechanism:''' | * '''Regulatory mechanism:''' | ||
| + | ** [[PurR]]: transcription repression (molecular inducer: PRPP) [http://www.ncbi.nlm.nih.gov/sites/entrez/2536750 PubMed] | ||
| + | ** [[G-box]]: transcription termination/ antitermination ([[riboswitch]]) [http://www.ncbi.nlm.nih.gov/sites/entrez/3036807 PubMed1] [http://www.ncbi.nlm.nih.gov/sites/entrez/12787499 PubMed2] | ||
| − | * '''Additional information:''' subject to Clp-dependent proteolysis upon glucose starvation [http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Abstract&list_uids=+17981983 PubMed] | + | * '''Additional information:''' subject to Clp-dependent proteolysis upon glucose starvation [http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Abstract&list_uids=+17981983 PubMed] |
=Biological materials = | =Biological materials = | ||
Revision as of 19:54, 31 May 2009
- Description: adenylsuccinate lyase
| Gene name | purB |
| Synonyms | |
| Essential | no |
| Product | adenylsuccinate lyase |
| Function | purine biosynthesis |
| MW, pI | 49 kDa, 5.822 |
| Gene length, protein length | 1293 bp, 431 aa |
| Immediate neighbours | purK, purC |
| Get the DNA and protein sequences (Barbe et al., 2009) | |
Genetic context 
This image was kindly provided by SubtiList
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Contents
The gene
Basic information
- Coordinates:
Phenotypes of a mutant
Database entries
- DBTBS entry: [1]
- SubtiList entry: [2]
Additional information
The protein
Basic information/ Evolution
- Catalyzed reaction/ biological activity: N(6)-(1,2-dicarboxyethyl)AMP = fumarate + AMP (according to Swiss-Prot)
- Protein family: Adenylosuccinate lyase subfamily (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: 1F1O
- Swiss prot entry: P12047
- KEGG entry: BSU06440
- E.C. number: 4.3.2.2
Additional information
- subject to Clp-dependent proteolysis upon glucose starvation PubMed
Expression and regulation
- Regulation:
- Regulatory mechanism:
- Additional information: subject to Clp-dependent proteolysis upon glucose starvation PubMed
Biological materials
- Mutant:
- Expression vector:
- lacZ fusion:
- GFP fusion:
- two-hybrid system:
- Antibody:
