4KWV | pdb_00004kwv

Crystal Structure of human apo-QPRT


Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
BSigma70_r2,Sigma70_nere4kwvB1 A: alpha bundlesX: TIM beta/alpha-barrelH: TIM barrelsT: TIM barrelsF: Sigma70_r2,Sigma70_nerECOD (develop294)
CSigma70_r2,Sigma70_nere4kwvC1 A: alpha bundlesX: TIM beta/alpha-barrelH: TIM barrelsT: TIM barrelsF: Sigma70_r2,Sigma70_nerECOD (develop294)
DSigma70_r2,Sigma70_nere4kwvD1 A: alpha bundlesX: TIM beta/alpha-barrelH: TIM barrelsT: TIM barrelsF: Sigma70_r2,Sigma70_nerECOD (develop294)
ESigma70_r2,Sigma70_nere4kwvE1 A: alpha bundlesX: TIM beta/alpha-barrelH: TIM barrelsT: TIM barrelsF: Sigma70_r2,Sigma70_nerECOD (develop294)
FATPaseInh_sub_ze4kwvF1 A: alpha bundlesX: Flavodoxin-likeH: FXYD familyT: FXYD familyF: ATPaseInh_sub_zECOD (develop294)
ASigma70_r2,Sigma70_nere4kwvA1 A: alpha bundlesX: TIM beta/alpha-barrelH: TIM barrelsT: TIM barrelsF: Sigma70_r2,Sigma70_nerECOD (develop294)

Domain Annotation: CATH CATH Database Homepage

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
A, B, C, D, E
PF02749Quinolinate phosphoribosyl transferase, N-terminal domain (QRPTase_N)Quinolinate phosphoribosyl transferase, N-terminal domainQuinolinate phosphoribosyl transferase (QPRTase) or nicotinate-nucleotide pyrophosphorylase EC:2.4.2.19 is involved in the de novo synthesis of NAD in both prokaryotes and eukaryotes. It catalyses the reaction of quinolinic acid with 5-phosphoribosyl ...Quinolinate phosphoribosyl transferase (QPRTase) or nicotinate-nucleotide pyrophosphorylase EC:2.4.2.19 is involved in the de novo synthesis of NAD in both prokaryotes and eukaryotes. It catalyses the reaction of quinolinic acid with 5-phosphoribosyl-1-pyrophosphate (PRPP) in the presence of Mg2+ to give rise to nicotinic acid mononucleotide (NaMN), pyrophosphate and carbon dioxide [1,2]. The QA substrate is bound between the C-terminal domain of one subunit, and the N-terminal domain of the other. The N-terminal domain has an alpha/beta hammerhead fold.
Domain
A, B, C, D, E
PF01729Quinolinate phosphoribosyl transferase, C-terminal domain (QRPTase_C)Quinolinate phosphoribosyl transferase, C-terminal domainQuinolinate phosphoribosyl transferase (QPRTase) or nicotinate-nucleotide pyrophosphorylase EC:2.4.2.19 is involved in the de novo synthesis of NAD in both prokaryotes and eukaryotes. It catalyses the reaction of quinolinic acid with 5-phosphoribosyl ...Quinolinate phosphoribosyl transferase (QPRTase) or nicotinate-nucleotide pyrophosphorylase EC:2.4.2.19 is involved in the de novo synthesis of NAD in both prokaryotes and eukaryotes. It catalyses the reaction of quinolinic acid with 5-phosphoribosyl-1-pyrophosphate (PRPP) in the presence of Mg2+ to give rise to nicotinic acid mononucleotide (NaMN), pyrophosphate and carbon dioxide [1,2]. The QA substrate is bound between the C-terminal domain of one subunit, and the N-terminal domain of the other. The C-terminal domain has a 7 beta-stranded TIM barrel-like fold.
Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
A, B, C, D, E
Nicotinate-nucleotide pyrophosphorylase [carboxylating]