pyrroloquinoline quinone biosynthesis protein PqqB may be involved in the transport of pyrroloquinoline quinone (PQQ) and its precursor to the cytoplasm
coenzyme PQQ biosynthesis protein B; This model describes coenzyme PQQ biosynthesis protein B, ...
3-303
1.41e-152
coenzyme PQQ biosynthesis protein B; This model describes coenzyme PQQ biosynthesis protein B, a gene required for the biosynthesis of pyrrolo-quinoline-quinone (coenzyme PQQ). PQQ is required for some glucose dehydrogenases and alcohol dehydrogenases. Note that this gene appears to be required for PQQ in biosynthesis in Methylobacterium extorquens (under the name pqqG) and in Klebiella pneumoniae but that the equivalent pqqV in Acinetobacter calcoaceticus is not necessary for heterologous expression of PQQ biosynthesis in E. coli. Based on this latter finding, it is suggested (Goosen, et al. 1989) that PqqB might be a transporter or a PQQ-dependent enzyme rather than a PQQ biosynthesis enzyme. [Biosynthesis of cofactors, prosthetic groups, and carriers, Other]
Pssm-ID: 273977 [Multi-domain] Cd Length: 302 Bit Score: 429.16 E-value: 1.41e-152
Coenzyme pyrroloquinoline quinone (PQQ) synthesis protein B and related proteins; MBL-fold ...
1-221
1.62e-130
Coenzyme pyrroloquinoline quinone (PQQ) synthesis protein B and related proteins; MBL-fold metallo hydrolase domainhydrolase domain; PQQB is essential for the synthesis of the cofactor pyrroloquinoline quinone (PQQ) in Klebsiella pneumonia. PqqB is not directly involved in the PQQ biosynthesis but may serve as a carrier for PQQ when PQQ is released from PqqC. Members of this subgroup belong to the MBL-fold metallo-hydrolase superfamily which is comprised mainly of hydrolytic enzymes which carry out a variety of biological functions.
Pssm-ID: 293832 [Multi-domain] Cd Length: 220 Bit Score: 370.03 E-value: 1.62e-130
coenzyme PQQ biosynthesis protein B; This model describes coenzyme PQQ biosynthesis protein B, ...
3-303
1.41e-152
coenzyme PQQ biosynthesis protein B; This model describes coenzyme PQQ biosynthesis protein B, a gene required for the biosynthesis of pyrrolo-quinoline-quinone (coenzyme PQQ). PQQ is required for some glucose dehydrogenases and alcohol dehydrogenases. Note that this gene appears to be required for PQQ in biosynthesis in Methylobacterium extorquens (under the name pqqG) and in Klebiella pneumoniae but that the equivalent pqqV in Acinetobacter calcoaceticus is not necessary for heterologous expression of PQQ biosynthesis in E. coli. Based on this latter finding, it is suggested (Goosen, et al. 1989) that PqqB might be a transporter or a PQQ-dependent enzyme rather than a PQQ biosynthesis enzyme. [Biosynthesis of cofactors, prosthetic groups, and carriers, Other]
Pssm-ID: 273977 [Multi-domain] Cd Length: 302 Bit Score: 429.16 E-value: 1.41e-152
Coenzyme pyrroloquinoline quinone (PQQ) synthesis protein B and related proteins; MBL-fold ...
1-221
1.62e-130
Coenzyme pyrroloquinoline quinone (PQQ) synthesis protein B and related proteins; MBL-fold metallo hydrolase domainhydrolase domain; PQQB is essential for the synthesis of the cofactor pyrroloquinoline quinone (PQQ) in Klebsiella pneumonia. PqqB is not directly involved in the PQQ biosynthesis but may serve as a carrier for PQQ when PQQ is released from PqqC. Members of this subgroup belong to the MBL-fold metallo-hydrolase superfamily which is comprised mainly of hydrolytic enzymes which carry out a variety of biological functions.
Pssm-ID: 293832 [Multi-domain] Cd Length: 220 Bit Score: 370.03 E-value: 1.62e-130
uncharacterized subgroup of the MBL-fold_metallo-hydrolase superfamily; MBL-fold metallo; ...
1-161
6.06e-16
uncharacterized subgroup of the MBL-fold_metallo-hydrolase superfamily; MBL-fold metallo; Members of the MBL-fold metallohydrolase superfamily are mainly hydrolytic enzymes which carry out a variety of biological functions. The class B metal beta-lactamases (MBLs) for which this fold was named perform only a small fraction of the activities included in this superfamily.Activities carried out by superfamily members include class B beta-lactamases, hydroxyacylglutathione hydrolases, AHL (acyl homoserine lactone) lactonases, persulfide dioxygenases, flavodiiron proteins, cleavage and polyadenylation specificity factors such as the Int9 and Int11 subunits of Integrator, Sdsa1-like and AtsA-like arylsulfatases, 5'-exonucleases human SNM1A and yeast Pso2p, ribonuclease J and ribonuclease Z, cyclic nucleotide phosphodiesterases, insecticide hydrolases, and proteins required for natural transformation competence. Classical members of the superfamily are di-, or less commonly mono-, zinc-ion-dependent hydrolases, however the diversity of biological roles is reflected in variations in the active site metallo-chemistry. Some members of this subgroup are named as octanoyltransferase (also known as lipoate-protein ligase B).
Pssm-ID: 293837 [Multi-domain] Cd Length: 193 Bit Score: 74.43 E-value: 6.06e-16
phosphodiesterase Escherichia coli PhnP and related proteins; MBL-fold metallo hydrolase ...
1-160
1.73e-09
phosphodiesterase Escherichia coli PhnP and related proteins; MBL-fold metallo hydrolase domain; Escherichia coli PhnP catalyzes the hydrolysis of 5-phospho-D-ribose-1,2-cyclic phosphate to D-ribose-1,5-bisphosphate, a step in the C-P lyase pathway. Members of this subgroup belong to the MBL-fold metallo-hydrolase superfamily. Members of this subgroup belong to the MBL-fold metallo-hydrolase superfamily which is comprised mainly of hydrolytic enzymes which carry out a variety of biological functions.
Pssm-ID: 293822 [Multi-domain] Cd Length: 186 Bit Score: 56.09 E-value: 1.73e-09
mainly hydrolytic enzymes and related proteins which carry out various biological functions; ...
41-196
4.36e-03
mainly hydrolytic enzymes and related proteins which carry out various biological functions; MBL-fold metallohydrolase domain; Members of the MBL-fold metallohydrolase superfamily are mainly hydrolytic enzymes which carry out a variety of biological functions. The class B metal beta-lactamases (MBLs) for which this fold was named perform only a small fraction of the activities included in this superfamily. Activities carried out by superfamily members include class B beta-lactamases which can catalyze the hydrolysis of a wide range of beta-lactam antibiotics, hydroxyacylglutathione hydrolases (also called glyoxalase II) which hydrolyze S-d-lactoylglutathione to d-lactate in the second step of the glycoxlase system, AHL lactonases which catalyze the hydrolysis and opening of the homoserine lactone rings of acyl homoserine lactones (AHLs), persulfide dioxygenase which catalyze the oxidation of glutathione persulfide to glutathione and persulfite in the mitochondria, flavodiiron proteins which catalyze the reduction of oxygen and/or nitric oxide to water or nitrous oxide respectively, cleavage and polyadenylation specificity factors such as the Int9 and Int11 subunits of Integrator, Sdsa1-like and AtsA-like arylsulfatases, 5'-exonucleases human SNM1A and yeast Pso2p, ribonuclease J which has both 5'-3' exoribonucleolytic and endonucleolytic activity and ribonuclease Z which catalyzes the endonucleolytic removal of the 3' extension of the majority of tRNA precursors, cyclic nucleotide phosphodiesterases which decompose cyclic adenosine and guanosine 3', 5'-monophosphate (cAMP and cGMP) respectively, insecticide hydrolases, and proteins required for natural transformation competence. The diversity of biological roles is reflected in variations in the active site metallo-chemistry, for example classical members of the superfamily are di-, or less commonly mono-, zinc-ion-dependent hydrolases, human persulfide dioxygenase ETHE1 is a mono-iron binding member of the superfamily; Arabidopsis thaliana hydroxyacylglutathione hydrolases incorporates iron, manganese, and zinc in its dinuclear metal binding site, and flavodiiron proteins contains a diiron site.
Pssm-ID: 293792 [Multi-domain] Cd Length: 188 Bit Score: 37.65 E-value: 4.36e-03
Database: CDSEARCH/cdd Low complexity filter: no Composition Based Adjustment: yes E-value threshold: 0.01
References:
Wang J et al. (2023), "The conserved domain database in 2023", Nucleic Acids Res.51(D)384-8.
Lu S et al. (2020), "The conserved domain database in 2020", Nucleic Acids Res.48(D)265-8.
Marchler-Bauer A et al. (2017), "CDD/SPARCLE: functional classification of proteins via subfamily domain architectures.", Nucleic Acids Res.45(D)200-3.
of the residues that compose this conserved feature have been mapped to the query sequence.
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(labeled illustration) Standard Display shows only the best scoring domain model from each source, in each hit category listed below for each region on the query sequence.
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