mainly hydrolytic enzymes and related proteins which carry out various biological functions; ...
75-743
1.38e-152
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.
The actual alignment was detected with superfamily member TIGR00361:
Pssm-ID: 451500 [Multi-domain] Cd Length: 662 Bit Score: 460.13 E-value: 1.38e-152
DNA internalization-related competence protein ComEC/Rec2; Apparant orthologs are found in 5 ...
75-743
1.38e-152
DNA internalization-related competence protein ComEC/Rec2; Apparant orthologs are found in 5 species so far (Haemophilus influenzae, Escherichia coli, Bacillus subtilis, Neisseria gonorrhoeae, Streptococcus pneumoniae), of which all but E. coli are model systems for the study of competence for natural transformation. This protein is a predicted multiple membrane-spanning protein likely to be involved in DNA internalization. In a large number of bacterial species not known to exhibit competence, this protein is replaced by a half-length N-terminal homolog of unknown function, modelled by the related model ComEC_N-term. The role for this protein in species that are not naturally transformable is unknown. [Cellular processes, DNA transformation]
Pssm-ID: 273036 [Multi-domain] Cd Length: 662 Bit Score: 460.13 E-value: 1.38e-152
DNA uptake channel protein ComEC C-terminal domain, metallo-beta-lactamase superfamily ...
517-749
3.46e-75
DNA uptake channel protein ComEC C-terminal domain, metallo-beta-lactamase superfamily [Intracellular trafficking, secretion, and vesicular transport];
Pssm-ID: 441904 [Multi-domain] Cd Length: 253 Bit Score: 244.00 E-value: 3.46e-75
Competence protein ComA, ComEC and related proteins; MBL-fold metallo hydrolase domain; This ...
517-689
1.39e-43
Competence protein ComA, ComEC and related proteins; MBL-fold metallo hydrolase domain; This subgroup includes proteins required for natural transformation competence including Neisseria gonorrhoeae ComA, Pseudomonas stutzeri ComA, Bacillus subtilis ComEC (also known as ComE operon protein 3) and Haemophilus influenza ORF2 encoded by the rec-2 gene, as well as Escherichia coli YcaI which does not mediate spontaneous plasmid transformation on nutrient-containing agar plates. It also includes the phosphorylcholine esterase (Pce) domain of choline-binding protein e from streptococcus pneumonia. 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: 293817 [Multi-domain] Cd Length: 179 Bit Score: 155.37 E-value: 1.39e-43
Competence protein; Members of this family are integral membrane proteins with 6 predicted ...
199-449
2.06e-35
Competence protein; Members of this family are integral membrane proteins with 6 predicted transmembrane helices. Some members of this family have been shown to be essential for bacterial competence in uptake of extracellular DNA. These proteins may transport DNA across the cell membrane. These proteins contain a highly conserved motif in the amino terminal transmembrane region that has two histidines that may form a metal binding site.
Pssm-ID: 461044 [Multi-domain] Cd Length: 269 Bit Score: 135.42 E-value: 2.06e-35
Metallo-beta-lactamase superfamily; Apart from the beta-lactamases a number of other proteins ...
536-713
7.76e-09
Metallo-beta-lactamase superfamily; Apart from the beta-lactamases a number of other proteins contain this domain. These proteins include thiolesterases, members of the glyoxalase II family, that catalyse the hydrolysis of S-D-lactoyl-glutathione to form glutathione and D-lactic acid and a competence protein that is essential for natural transformation in Neisseria gonorrhoeae and could be a transporter involved in DNA uptake. Except for the competence protein these proteins bind two zinc ions per molecule as cofactor.
Pssm-ID: 214854 [Multi-domain] Cd Length: 177 Bit Score: 55.64 E-value: 7.76e-09
DNA internalization-related competence protein ComEC/Rec2; Apparant orthologs are found in 5 ...
75-743
1.38e-152
DNA internalization-related competence protein ComEC/Rec2; Apparant orthologs are found in 5 species so far (Haemophilus influenzae, Escherichia coli, Bacillus subtilis, Neisseria gonorrhoeae, Streptococcus pneumoniae), of which all but E. coli are model systems for the study of competence for natural transformation. This protein is a predicted multiple membrane-spanning protein likely to be involved in DNA internalization. In a large number of bacterial species not known to exhibit competence, this protein is replaced by a half-length N-terminal homolog of unknown function, modelled by the related model ComEC_N-term. The role for this protein in species that are not naturally transformable is unknown. [Cellular processes, DNA transformation]
Pssm-ID: 273036 [Multi-domain] Cd Length: 662 Bit Score: 460.13 E-value: 1.38e-152
DNA uptake channel protein ComEC C-terminal domain, metallo-beta-lactamase superfamily ...
517-749
3.46e-75
DNA uptake channel protein ComEC C-terminal domain, metallo-beta-lactamase superfamily [Intracellular trafficking, secretion, and vesicular transport];
Pssm-ID: 441904 [Multi-domain] Cd Length: 253 Bit Score: 244.00 E-value: 3.46e-75
Competence protein ComA, ComEC and related proteins; MBL-fold metallo hydrolase domain; This ...
517-689
1.39e-43
Competence protein ComA, ComEC and related proteins; MBL-fold metallo hydrolase domain; This subgroup includes proteins required for natural transformation competence including Neisseria gonorrhoeae ComA, Pseudomonas stutzeri ComA, Bacillus subtilis ComEC (also known as ComE operon protein 3) and Haemophilus influenza ORF2 encoded by the rec-2 gene, as well as Escherichia coli YcaI which does not mediate spontaneous plasmid transformation on nutrient-containing agar plates. It also includes the phosphorylcholine esterase (Pce) domain of choline-binding protein e from streptococcus pneumonia. 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: 293817 [Multi-domain] Cd Length: 179 Bit Score: 155.37 E-value: 1.39e-43
Competence protein; Members of this family are integral membrane proteins with 6 predicted ...
199-449
2.06e-35
Competence protein; Members of this family are integral membrane proteins with 6 predicted transmembrane helices. Some members of this family have been shown to be essential for bacterial competence in uptake of extracellular DNA. These proteins may transport DNA across the cell membrane. These proteins contain a highly conserved motif in the amino terminal transmembrane region that has two histidines that may form a metal binding site.
Pssm-ID: 461044 [Multi-domain] Cd Length: 269 Bit Score: 135.42 E-value: 2.06e-35
ComEC/Rec2-related protein; The related model ComEC_Rec2 (TIGR00361) describes a set of ...
220-419
8.15e-25
ComEC/Rec2-related protein; The related model ComEC_Rec2 (TIGR00361) describes a set of proteins of ~ 700-800 residues, one each from a number of different species, of which most can become competent for natural transformation with exogenous DNA. The best-studied examples are ComEC from Bacillus subtilis and Rec-2 from Haemophilus influenzae, where the protein appears to form part of the DNA import structure. This model represents a region found in full-length ComEC/Rec2 and shorter homologs of unknown function from large number of additional bacterial species, most of which are not known to become competent for transformation (an exception is Helicobacter pylori). [Unknown function, General]
Pssm-ID: 273035 [Multi-domain] Cd Length: 171 Bit Score: 101.68 E-value: 8.15e-25
Metallo-beta-lactamase superfamily; Apart from the beta-lactamases a number of other proteins ...
536-713
7.76e-09
Metallo-beta-lactamase superfamily; Apart from the beta-lactamases a number of other proteins contain this domain. These proteins include thiolesterases, members of the glyoxalase II family, that catalyse the hydrolysis of S-D-lactoyl-glutathione to form glutathione and D-lactic acid and a competence protein that is essential for natural transformation in Neisseria gonorrhoeae and could be a transporter involved in DNA uptake. Except for the competence protein these proteins bind two zinc ions per molecule as cofactor.
Pssm-ID: 214854 [Multi-domain] Cd Length: 177 Bit Score: 55.64 E-value: 7.76e-09
hydroxyacylglutathione hydrolase, MBL-fold metallo-hydrolase domain; hydroxyacylglutathione hydrolase (EC 3.1.2.6, also known as, glyoxalase II; S-2-hydroxylacylglutathione hydrolase; hydroxyacylglutathione hydrolase; acetoacetylglutathione hydrolase). In the second step of the glycoxlase system this enzyme hydrolyzes S-d-lactoylglutathione to d-lactate and regenerates glutathione in the process. It has broad substrate specificity for glutathione thiol esters, hydrolyzing a number of these species to their corresponding carboxylic acids and reduced glutathione. It appears to hydrolyze 2-hydroxy thiol esters with greatest efficiency. It belongs to the MBL-fold metallo-hydrolase superfamily which is comprised mainly of hydrolytic enzymes which carry out a variety of biological functions.
Pssm-ID: 293809 [Multi-domain] Cd Length: 165 Bit Score: 54.00 E-value: 2.42e-08
Methanocaldococcus jannaschii dihydropteroate synthase, Thermoanaerobacter tengcongensis Tflp, and related proteins; MBL-fold metallo hydrolase domain; This subgroup includes Methanocaldococcus jannaschii 7,8-dihydropterin-6-methyl-4-(beta-D-ribofuranosyl)-aminobenzene-5'-phosphate synthase (EC 2.5.1.15), a folate biosynthetic enzyme also known as dihydropteroate synthase and 7,8 dihydropteroate synthase. Thermoanaerobacter tengcongensis Tflp is a ferredoxin-like member. 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: 293799 Cd Length: 269 Bit Score: 52.24 E-value: 4.34e-07
mainly hydrolytic enzymes and related proteins which carry out various biological functions; ...
518-665
8.46e-05
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: 44.20 E-value: 8.46e-05
uncharacterized subgroup which includes Sulfolobus tokodaii ST1585 protein; MBL-fold metallo ...
536-603
1.76e-04
uncharacterized subgroup which includes Sulfolobus tokodaii ST1585 protein; MBL-fold metallo hydrolase domain; This subgroup includes the uncharacterized Sulfolobus tokodaii ST1585 protein. 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. The class B metal beta-lactamases (MBLs) from which this fold was named are only a small fraction of the activities which are 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.
Pssm-ID: 293812 [Multi-domain] Cd Length: 215 Bit Score: 43.64 E-value: 1.76e-04
Bacillus amyloliquefaciens BaeB and related proteins; MBL-fold metallo hydrolase domain; ...
562-634
2.19e-04
Bacillus amyloliquefaciens BaeB and related proteins; MBL-fold metallo hydrolase domain; Bacillus amyloliquefaciens BaeB may play a role in the synthesis of the antibiotic polyketide bacillaene. 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: 293833 [Multi-domain] Cd Length: 174 Bit Score: 42.52 E-value: 2.19e-04
Salmonella enterica serovar typhimurium YcbL and related proteins; MBL-fold metallo hydrolase ...
562-635
3.44e-04
Salmonella enterica serovar typhimurium YcbL and related proteins; MBL-fold metallo hydrolase domain; This subgroup includes Salmonella enterica serovar typhimurium YcbL which has type II hydroxyacylglutathione hydrolase (EC 3.1.2.6, also known as glyoxalase II) activity, and has a single metal ion binding site, and Thermus thermophilus TTHA1623 which does not have GLX2 activity and has two metal ion binding sites with a glyoxalase II-type metal coordination. 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: 293823 [Multi-domain] Cd Length: 190 Bit Score: 42.15 E-value: 3.44e-04
quorum-quenching N-acyl-homoserine lactonase, MBL-fold metallo-hydrolase domain; Acyl Homoserine Lactones (also known as AHLs) are signal molecules which coordinate gene expression in quorum sensing, in many Gram-negative bacteria. Quorum-quenching N-acyl-homoserine lactonase (also known as AHL lactonase, N-acyl-L-homoserine lactone hydrolase, EC 3.1.1.81) catalyzes the hydrolysis and opening of the homoserine lactone rings of AHLs, a reaction that can block quorum sensing. These enzymes 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: 293815 [Multi-domain] Cd Length: 238 Bit Score: 38.73 E-value: 7.18e-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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