carbon-nitrogen hydrolase family protein similar to nitrilase, which is involved in the reduction of organic nitrogen compounds and ammonia production, breaks carbon-nitrogen bonds and depends on a Glu-Lys-Cys catalytic triad
Nitrilase superfamily, including nitrile- or amide-hydrolyzing enzymes and amide-condensing ...
62-425
3.07e-39
Nitrilase superfamily, including nitrile- or amide-hydrolyzing enzymes and amide-condensing enzymes; This superfamily (also known as the C-N hydrolase superfamily) contains hydrolases that break carbon-nitrogen bonds; it includes nitrilases, cyanide dihydratases, aliphatic amidases, N-terminal amidases, beta-ureidopropionases, biotinidases, pantotheinase, N-carbamyl-D-amino acid amidohydrolases, the glutaminase domain of glutamine-dependent NAD+ synthetase, apolipoprotein N-acyltransferases, and N-carbamoylputrescine amidohydrolases, among others. These enzymes depend on a Glu-Lys-Cys catalytic triad, and work through a thiol acylenzyme intermediate. Members of this superfamily generally form homomeric complexes, the basic building block of which is a homodimer. These oligomers include dimers, tetramers, hexamers, octamers, tetradecamers, octadecamers, as well as variable length helical arrangements and homo-oligomeric spirals. These proteins have roles in vitamin and co-enzyme metabolism, in detoxifying small molecules, in the synthesis of signaling molecules, and in the post-translational modification of proteins. They are used industrially, as biocatalysts in the fine chemical and pharmaceutical industry, in cyanide remediation, and in the treatment of toxic effluent. This superfamily has been classified previously in the literature, based on global and structure-based sequence analysis, into thirteen different enzyme classes (referred to as 1-13). This hierarchy includes those thirteen classes and a few additional subfamilies. A putative distant relative, the plasmid-borne TraB family, has not been included in the hierarchy.
The actual alignment was detected with superfamily member PRK13825:
Pssm-ID: 448250 [Multi-domain] Cd Length: 388 Bit Score: 145.16 E-value: 3.07e-39
Apolipoprotein N-acyl transferase (class 9 nitrilases); ALP N-acyl transferase (Lnt), is an ...
228-425
1.91e-05
Apolipoprotein N-acyl transferase (class 9 nitrilases); ALP N-acyl transferase (Lnt), is an essential membrane-bound enzyme in gram-negative bacteria, which catalyzes the N-acylation of apolipoproteins, the final step in lipoprotein maturation. This is a reverse amidase (i.e. condensation) reaction. This subgroup belongs to a larger nitrilase superfamily comprised of nitrile- or amide-hydrolyzing enzymes and amide-condensing enzymes, which depend on a Glu-Lys-Cys catalytic triad. This superfamily has been classified in the literature based on global and structure based sequence analysis into thirteen different enzyme classes (referred to as 1-13), this subgroup corresponds to class 9.
Pssm-ID: 143595 Cd Length: 270 Bit Score: 46.05 E-value: 1.91e-05
Apolipoprotein N-acyl transferase (class 9 nitrilases); ALP N-acyl transferase (Lnt), is an ...
228-425
1.91e-05
Apolipoprotein N-acyl transferase (class 9 nitrilases); ALP N-acyl transferase (Lnt), is an essential membrane-bound enzyme in gram-negative bacteria, which catalyzes the N-acylation of apolipoproteins, the final step in lipoprotein maturation. This is a reverse amidase (i.e. condensation) reaction. This subgroup belongs to a larger nitrilase superfamily comprised of nitrile- or amide-hydrolyzing enzymes and amide-condensing enzymes, which depend on a Glu-Lys-Cys catalytic triad. This superfamily has been classified in the literature based on global and structure based sequence analysis into thirteen different enzyme classes (referred to as 1-13), this subgroup corresponds to class 9.
Pssm-ID: 143595 Cd Length: 270 Bit Score: 46.05 E-value: 1.91e-05
Uncharacterized subgroup of the nitrilase superfamily (putative class 13 nitrilases); The ...
251-314
5.03e-03
Uncharacterized subgroup of the nitrilase superfamily (putative class 13 nitrilases); The nitrilase superfamily is comprised of nitrile- or amide-hydrolyzing enzymes and amide-condensing enzymes, which depend on a Glu-Lys-Cys catalytic triad. This superfamily has been classified in the literature based on global and structure based sequence analysis into thirteen different enzyme classes (referred to as 1-13). Class 13 represents proteins that at the time were difficult to place in a distinct similarity group; this subgroup represents either a new class or one that was included previously in class 13. Members of this superfamily generally form homomeric complexes, the basic building block of which is a homodimer.
Pssm-ID: 143605 Cd Length: 255 Bit Score: 38.33 E-value: 5.03e-03
Nitrilase superfamily, including nitrile- or amide-hydrolyzing enzymes and amide-condensing ...
247-303
8.37e-03
Nitrilase superfamily, including nitrile- or amide-hydrolyzing enzymes and amide-condensing enzymes; This superfamily (also known as the C-N hydrolase superfamily) contains hydrolases that break carbon-nitrogen bonds; it includes nitrilases, cyanide dihydratases, aliphatic amidases, N-terminal amidases, beta-ureidopropionases, biotinidases, pantotheinase, N-carbamyl-D-amino acid amidohydrolases, the glutaminase domain of glutamine-dependent NAD+ synthetase, apolipoprotein N-acyltransferases, and N-carbamoylputrescine amidohydrolases, among others. These enzymes depend on a Glu-Lys-Cys catalytic triad, and work through a thiol acylenzyme intermediate. Members of this superfamily generally form homomeric complexes, the basic building block of which is a homodimer. These oligomers include dimers, tetramers, hexamers, octamers, tetradecamers, octadecamers, as well as variable length helical arrangements and homo-oligomeric spirals. These proteins have roles in vitamin and co-enzyme metabolism, in detoxifying small molecules, in the synthesis of signaling molecules, and in the post-translational modification of proteins. They are used industrially, as biocatalysts in the fine chemical and pharmaceutical industry, in cyanide remediation, and in the treatment of toxic effluent. This superfamily has been classified previously in the literature, based on global and structure-based sequence analysis, into thirteen different enzyme classes (referred to as 1-13). This hierarchy includes those thirteen classes and a few additional subfamilies. A putative distant relative, the plasmid-borne TraB family, has not been included in the hierarchy.
Pssm-ID: 143587 [Multi-domain] Cd Length: 253 Bit Score: 37.69 E-value: 8.37e-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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