pyrK

dihydroorotic acid dehydrogenase (electron transfer subunit)

locus: BSU_15530

pI: 5.58

mw: 27.95 kDa

protein length: 256 aa

gene length: 771 bp

function: pyrimidine biosynthesis

product: dihydroorotic acid dehydrogenase (electron transfer subunit)

essential: no

synonyms: pyrDII,ylxD

Genomic Context

categories

• [category|SW 2|Metabolism] → [category|SW 2.5|Nucleotide metabolism] → [category|SW 2.5.2|Biosynthesis/ acquisition of nucleotides] → [category|SW 2.5.2.4|Biosynthesis/ acquisition of pyrimidine nucleotides]

Gene

Coordinates: 1,626,948 → 1,627,718

The protein

Protein family

• PyrK family (single member, according to UniProt)

[SW|Domains]

• [SW|FAD-binding FR-type domain] (aa 1-101) (according to UniProt)

[SW|Cofactors]

• [2Fe-2S] cluster [pubmed|29292548,11188687]
• FAD [pubmed|11188687]

Structure

• [PDB|1EP1] (from Lactococcus lactis, 46% identity) [pubmed|11188687]

additional information

• belongs to the 100 [SW|most abundant proteins] [PubMed|15378759]

Expression and Regulation

Operons

• genes: [gene|6D9CEDC7737CCFA838EBC142CD735E066C950AD2|pyrR]-[gene|A5C26E10085868A0A193C450DF58D54C636B7C2D|pyrP]-[gene|B83462A50FDDD20FE9BD4681824E30AAD10F506B|pyrB]-[gene|CA16FD3507DCCADB1E01DF25B42C3405C9205B05|pyrC]-[gene|E7741ED6F15044900BDC5F0584246469D2D4D586|pyrAA]-[gene|D57DC8A53E52BC4A2EA894E3C9FD983592882918|pyrAB]-[gene|C20A05AE4CE8AEE0DA767334935CC64106A7FCCB|pyrK]-[gene|E533BEF28579CD04B24E2C728737269E35224450|pyrD]-[gene|5D0D0D2413377FCA92440334E92B5A27A5963D9E|pyrF]-[gene|0197A037D2AF049B295E1DA60187D4614B2BAC51|pyrE]
  description: [Pubmed|8206849]

  sigma factors

  • [protein|360F48D576DE950DF79C1A2677B7A35A8D8CC30C|SigA]: sigma factor, [Pubmed|1709162], in [regulon|360F48D576DE950DF79C1A2677B7A35A8D8CC30C|SigA regulon]

  regulatory mechanism

  • [protein|6D9CEDC7737CCFA838EBC142CD735E066C950AD2|PyrR]: termination/ antitermination, via [SW|RNA switch], in [regulon|6D9CEDC7737CCFA838EBC142CD735E066C950AD2|PyrR regulon]

  regulation

  • induced in the absence of uridine nucleotides ([protein|search|PyrR]) [Pubmed|8206849]

Biological materials

Mutant

• BKE15530 (Δ[gene|C20A05AE4CE8AEE0DA767334935CC64106A7FCCB|pyrK]::erm trpC2) available at [http://www.bgsc.org/getdetail.php?bgscid=BKE15530 BGSC], [Pubmed|28189581], upstream reverse: _UP1_ACATACTGTCAAATACGCTT, downstream forward: _UP4_AAAGCTCAGGAGGTGGCGCT
• BKK15530 (Δ[gene|C20A05AE4CE8AEE0DA767334935CC64106A7FCCB|pyrK]::kan trpC2) available at [http://www.bgsc.org/getdetail.php?bgscid=BKK15530 BGSC], [Pubmed|28189581], upstream reverse: _UP1_ACATACTGTCAAATACGCTT, downstream forward: _UP4_AAAGCTCAGGAGGTGGCGCT

References

• 8206849,8759868,1709162,10545205,15378759,11188687