6-pyruvoyltetrahydropterin synthase, synthesis of the modified ribonucleotide queuosine
function
tRNA modification
product
6-pyruvoyltetrahydropterin synthase
Genomic Context
categories
[category|SW 3|Information processing] → [category|SW 3.3|Protein synthesis, modification and degradation] → [category|SW 3.3.1|Translation] → [category|SW 3.3.1.8|tRNA modification and maturation]Gene
Coordinates
1,440,100 → 1,440,549
The protein
Catalyzed reaction/ biological activity
7,8-dihydroneopterin 3'-triphosphate + H2O --> 6-carboxy-5,6,7,8-tetrahydropterin + acetaldehyde + 2 H+ + triphosphate (according to UniProt)Protein family
PTPS family (single member, according to UniProt)Structure
[PDB|3QN0] (from E. coli, 33% identity) [pubmed|24816091]Expression and Regulation
Operons
genes
[gene|1925DFD1162E744E9175D07EC0FD72A75C79C6BF|queC]-[gene|BA6DD5C9AB9BFF9759E9ECC46CE3DF4EB7E67F52|queD]-[gene|F5189CAA5EF43FCF95E593E095F84B3BE486B347|queE]-[gene|5F96500CC46CC4DAECEBAD34EC50B10548E6D0F9|queF]
description
[Pubmed|14660578]
regulatory mechanism
[regulon|preQ1 riboswitch|preQ1 riboswitch]: antitermination, in the absence of queuosine [Pubmed|19285444], in [regulon|preQ1 riboswitch|preQ1 riboswitch]regulation
repressed in the presence of queuosine ([SW|preQ1 riboswitch]) [Pubmed|19285444]view in new tabBiological materials
Mutant
MGNA-B325 (ykvK::erm), available at the [https://shigen.nig.ac.jp/bsub/resource/strainGeneDisrupted/detail/1324 NBRP B. subtilis, Japan]BKE13730 (Δ[gene|BA6DD5C9AB9BFF9759E9ECC46CE3DF4EB7E67F52|queD]::erm trpC2) available at [http://www.bgsc.org/getdetail.php?bgscid=BKE13730 BGSC], [Pubmed|28189581], upstream reverse: _UP1_ATTTATGCACGCTCTCCTTT, downstream forward: _UP4_TGAATGGCTAAAGGAATTCCBKK13730 (Δ[gene|BA6DD5C9AB9BFF9759E9ECC46CE3DF4EB7E67F52|queD]::kan trpC2) available at [http://www.bgsc.org/getdetail.php?bgscid=BKK13730 BGSC], [Pubmed|28189581], upstream reverse: _UP1_ATTTATGCACGCTCTCCTTT, downstream forward: _UP4_TGAATGGCTAAAGGAATTCCReferences
16411777,18259064,14660578,19285444,17384645,24816091