purB
168
adenylsuccinate lyase
locus
BSU_06440
Molecular weight
49.32 kDa
pI
5.82
function
purine biosynthesis
product
adenylsuccinate lyase
essential
no
ec
4.3.2.2
synonyms
purB
Outlinks
Genomic Context
Categories containing this gene/protein
List of homologs in different organisms, belongs to COG0015 (Galperin et al., 2021)
This gene is a member of the following regulons
Gene
Coordinates
700,232 701,527
Phenotypes of a mutant
poor growth [pubmed|28189581]
non-transformable [pubmed|28189581]
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The protein
Catalyzed reaction/ biological activity
N6-(1,2-dicarboxyethyl)-AMP --> AMP + fumarate (according to UniProt)
(2S)-2-[5-amino-1-(5-phospho--D-ribosyl)imidazole-4-carboxamido]succinate --> 5-amino-1-(5-phospho--D-ribosyl)imidazole-4-carboxamide + fumarate (according to UniProt)
Protein family
[wiki|lyase 1 family] (according to UniProt)
Structure
[PDB|1F1O]
[AF|P12047]
Additional information
subject to Clp-dependent proteolysis upon glucose starvation [PubMed|17981983]
belongs to the 100 most abundant proteins [PubMed|15378759]
Expression and Regulation
Operons
genes
[gene|1A9F7847AA1EB2A264842B44CD1B1A21F0AF6E57|purE]-[gene|0DA73E4D1935F6A91BE251EF2704A11DE5D81174|purK]-[gene|29FF54E2B9F4A11811F5E15885A4C02A259C7B35|purB]-[gene|447D12E940C7F45B6C5015844F9DED9D513CD6E5|purC]-[gene|CCD4DA969086181CFA33D6D241F2CAAE02E0C758|purS]-[gene|DEE856E83E790EB57F103F7A9156408AF090995D|purQ]-[gene|D34203FAA84C19B34B3CB5F00AC2E2663FFA344D|purL]-[gene|4AA5AF9C7CE8D0A9FD3A47650ECF130BCBEE1952|purF]-[gene|AD0DE9457D70DF02FA0F58867B24ABF236FAF65A|purM]-[gene|7B30F27D6C459437967A64467E52961F4A9E0F2C|purN]-[gene|54CE8EB2F5D1F9AEAA497E1F60248C9B2250B01E|purH]-[gene|9BBA22B09C6DD6C36E043D44B0F54BD0FFA5BA0E|purD]
description
[Pubmed|3036807]
regulation
expression activated by glucose (4.4 fold) [Pubmed|12850135]
regulatory mechanism
G-box: RNA switch, ([wiki|riboswitch]) [pubmed|3036807,12787499], in [regulon|other_regulator:G-box|G-box]
[protein|A8C82F5825DE0921DA6B4ACDE0CC31EC7749273C|purR]: repression, (molecular inducer: PRPP) [Pubmed|7638212,2536750], in [regulon|protein:A8C82F5825DE0921DA6B4ACDE0CC31EC7749273C|purR regulon]
sigma factors
[protein|360F48D576DE950DF79C1A2677B7A35A8D8CC30C|sigA]: sigma factor, [Pubmed|3036807], in [regulon|protein:360F48D576DE950DF79C1A2677B7A35A8D8CC30C|sigA regulon]
Biological materials
Mutant
BKE06440 ([gene|29FF54E2B9F4A11811F5E15885A4C02A259C7B35|purB]::erm trpC2) available at [http://bgsc.org/getdetail.php?bgscid=BKE06440 BGSC], [Pubmed|28189581], upstream reverse: _UP1_TTCAGGTCTTGAATAACGTT, downstream forward: _UP4_TAGAAGAAGCTTTTAGCGGC
BKK06440 ([gene|29FF54E2B9F4A11811F5E15885A4C02A259C7B35|purB]::kan trpC2) available at [http://bgsc.org/getdetail.php?bgscid=BKK06440 BGSC], [Pubmed|28189581], upstream reverse: _UP1_TTCAGGTCTTGAATAACGTT, downstream forward: _UP4_TAGAAGAAGCTTTTAGCGGC
References
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Time of last update: 2024-08-27 21:17:31
Author of last update: Melvin.boenninger