alanine dehydrogenase catalyzes the NAD(+)-dependent oxidative deamination of L-alanine to pyruvate, and the reverse reaction, the reductive amination of pyruvate; alanine dehydrogenase catalyzes the reversible oxidative deamination of L-alanine to pyruvate
Alanine dehydrogenase (includes sporulation protein SpoVN) [Amino acid transport and ...
1-371
0e+00
Alanine dehydrogenase (includes sporulation protein SpoVN) [Amino acid transport and metabolism]; Alanine dehydrogenase (includes sporulation protein SpoVN) is part of the Pathway/BioSystem: Urea cycle
:
Pssm-ID: 440450 [Multi-domain] Cd Length: 372 Bit Score: 657.85 E-value: 0e+00
Alanine dehydrogenase (includes sporulation protein SpoVN) [Amino acid transport and ...
1-371
0e+00
Alanine dehydrogenase (includes sporulation protein SpoVN) [Amino acid transport and metabolism]; Alanine dehydrogenase (includes sporulation protein SpoVN) is part of the Pathway/BioSystem: Urea cycle
Pssm-ID: 440450 [Multi-domain] Cd Length: 372 Bit Score: 657.85 E-value: 0e+00
Alanine dehydrogenase NAD-binding and catalytic domains; Alanine dehydrogenase (L-AlaDH) ...
1-359
0e+00
Alanine dehydrogenase NAD-binding and catalytic domains; Alanine dehydrogenase (L-AlaDH) catalyzes the NAD-dependent conversion of pyruvate to L-alanine via reductive amination. Like formate dehydrogenase and related enzymes, L-AlaDH is comprised of 2 domains connected by a long alpha helical stretch, each resembling a Rossmann fold NAD-binding domain. The NAD-binding domain is inserted within the linear sequence of the more divergent catalytic domain. Ligand binding and active site residues are found in the cleft between the subdomains. L-AlaDH is typically hexameric and is critical in carbon and nitrogen metabolism in micro-organisms.
Pssm-ID: 240630 [Multi-domain] Cd Length: 359 Bit Score: 600.55 E-value: 0e+00
alanine dehydrogenase; The family of known L-alanine dehydrogenases (EC 1.4.1.1) includes ...
1-370
3.12e-151
alanine dehydrogenase; The family of known L-alanine dehydrogenases (EC 1.4.1.1) includes representatives from the Proteobacteria, Firmicutes, Cyanobacteria, and Actinobacteria, all with about 50 % identity or better. An outlier to this group in both sequence and gap pattern is the homolog from Helicobacter pylori, an epsilon division Proteobacteria, which must be considered a putative alanine dehydrogenase. In Mycobacterium smegmatis and M. tuberculosis, the enzyme doubles as a glycine dehydrogenase (1.4.1.10), running in the reverse direction (glyoxylate amination to glycine, with conversion of NADH to NAD+). Related proteins include saccharopine dehydrogenase and the N-terminal half of the NAD(P) transhydrogenase alpha subunit. All of these related proteins bind NAD and/or NADP. [Energy metabolism, Amino acids and amines]
Pssm-ID: 129609 [Multi-domain] Cd Length: 370 Bit Score: 431.26 E-value: 3.12e-151
Alanine dehydrogenase (includes sporulation protein SpoVN) [Amino acid transport and ...
1-371
0e+00
Alanine dehydrogenase (includes sporulation protein SpoVN) [Amino acid transport and metabolism]; Alanine dehydrogenase (includes sporulation protein SpoVN) is part of the Pathway/BioSystem: Urea cycle
Pssm-ID: 440450 [Multi-domain] Cd Length: 372 Bit Score: 657.85 E-value: 0e+00
Alanine dehydrogenase NAD-binding and catalytic domains; Alanine dehydrogenase (L-AlaDH) ...
1-359
0e+00
Alanine dehydrogenase NAD-binding and catalytic domains; Alanine dehydrogenase (L-AlaDH) catalyzes the NAD-dependent conversion of pyruvate to L-alanine via reductive amination. Like formate dehydrogenase and related enzymes, L-AlaDH is comprised of 2 domains connected by a long alpha helical stretch, each resembling a Rossmann fold NAD-binding domain. The NAD-binding domain is inserted within the linear sequence of the more divergent catalytic domain. Ligand binding and active site residues are found in the cleft between the subdomains. L-AlaDH is typically hexameric and is critical in carbon and nitrogen metabolism in micro-organisms.
Pssm-ID: 240630 [Multi-domain] Cd Length: 359 Bit Score: 600.55 E-value: 0e+00
alanine dehydrogenase; The family of known L-alanine dehydrogenases (EC 1.4.1.1) includes ...
1-370
3.12e-151
alanine dehydrogenase; The family of known L-alanine dehydrogenases (EC 1.4.1.1) includes representatives from the Proteobacteria, Firmicutes, Cyanobacteria, and Actinobacteria, all with about 50 % identity or better. An outlier to this group in both sequence and gap pattern is the homolog from Helicobacter pylori, an epsilon division Proteobacteria, which must be considered a putative alanine dehydrogenase. In Mycobacterium smegmatis and M. tuberculosis, the enzyme doubles as a glycine dehydrogenase (1.4.1.10), running in the reverse direction (glyoxylate amination to glycine, with conversion of NADH to NAD+). Related proteins include saccharopine dehydrogenase and the N-terminal half of the NAD(P) transhydrogenase alpha subunit. All of these related proteins bind NAD and/or NADP. [Energy metabolism, Amino acids and amines]
Pssm-ID: 129609 [Multi-domain] Cd Length: 370 Bit Score: 431.26 E-value: 3.12e-151
Alanine dehydrogenase and related dehydrogenases; Alanine dehydrogenase/Transhydrogenase, such ...
3-325
7.83e-97
Alanine dehydrogenase and related dehydrogenases; Alanine dehydrogenase/Transhydrogenase, such as the hexameric L-alanine dehydrogenase of Phormidium lapideum, contain 2 Rossmann fold-like domains linked by an alpha helical region. Related proteins include Saccharopine Dehydrogenase (SDH), bifunctional lysine ketoglutarate reductase /saccharopine dehydrogenase enzyme, N(5)-(carboxyethyl)ornithine synthase, and Rubrum transdehydrogenase. Alanine dehydrogenase (L-AlaDH) catalyzes the NAD-dependent conversion of pyrucate to L-alanine via reductive amination. Transhydrogenases found in bacterial and inner mitochondrial membranes link NAD(P)(H)-dependent redox reactions to proton translocation. The energy of the proton electrochemical gradient (delta-p), generated by the respiratory electron transport chain, is consumed by transhydrogenase in NAD(P)+ reduction. Transhydrogenase is likely involved in the regulation of the citric acid cycle. Rubrum transhydrogenase has 3 components, dI, dII, and dIII. dII spans the membrane while dI and dIII protrude on the cytoplasmic/matirx side. DI contains 2 domains with Rossmann folds, linked by a long alpha helix, and contains a NAD binding site. Two dI polypeptides (represented in this sub-family) spontaneously form a heterotrimer with one dIII in the absence of dII. In the heterotrimer, both dI chains may bind NAD, but only one is well-ordered. dIII also binds a well-ordered NADP, but in a different orientation than classical Rossmann domains.
Pssm-ID: 240621 [Multi-domain] Cd Length: 317 Bit Score: 290.85 E-value: 7.83e-97
Rubrum transdehydrogenase NAD-binding and catalytic domains; Transhydrogenases found in ...
1-310
2.83e-47
Rubrum transdehydrogenase NAD-binding and catalytic domains; Transhydrogenases found in bacterial and inner mitochondrial membranes link NAD(P)(H)-dependent redox reactions to proton translocation. The energy of the proton electrochemical gradient (delta-p), generated by the respiratory electron transport chain, is consumed by transhydrogenase in NAD(P)+ reduction. Transhydrogenase is likely involved in the regulation of the citric acid cycle. Rubrum transhydrogenase has 3 components, dI, dII, and dIII. dII spans the membrane while dI and dIII protrude on the cytoplasmic/matrix side. DI contains 2 domains in Rossmann-like folds, linked by a long alpha helix, and contains a NAD binding site. Two dI polypeptides (represented in this sub-family) spontaneously form a heterotrimer with dIII in the absence of dII. In the heterotrimer, both dI chains may bind NAD, but only one is well-ordered. dIII also binds a well-ordered NADP, but in a different orientation than a classical Rossmann domain.
Pssm-ID: 240629 [Multi-domain] Cd Length: 363 Bit Score: 164.12 E-value: 2.83e-47
Formate/glycerate dehydrogenases, D-specific 2-hydroxy acid dehydrogenases and related ...
3-324
1.49e-44
Formate/glycerate dehydrogenases, D-specific 2-hydroxy acid dehydrogenases and related dehydrogenases; The formate/glycerate dehydrogenase like family contains a diverse group of enzymes such as formate dehydrogenase (FDH), glycerate dehydrogenase (GDH), D-lactate dehydrogenase, L-alanine dehydrogenase, and S-Adenosylhomocysteine hydrolase, that share a common 2-domain structure. Despite often low sequence identity, these proteins typically have a characteristic arrangement of 2 similar domains of the alpha/beta Rossmann fold NAD+ binding form. The NAD(P) binding domain is inserted within the linear sequence of the mostly N-terminal catalytic domain. Structurally, these domains are connected by extended alpha helices and create a cleft in which NAD(P) is bound, primarily to the C-terminal portion of the 2nd (internal) domain. While many members of this family are dimeric, alanine DH is hexameric and phosphoglycerate DH is tetrameric. 2-hydroxyacid dehydrogenases are enzymes that catalyze the conversion of a wide variety of D-2-hydroxy acids to their corresponding keto acids. The general mechanism is (R)-lactate + acceptor to pyruvate + reduced acceptor. Formate dehydrogenase (FDH) catalyzes the NAD+-dependent oxidation of formate ion to carbon dioxide with the concomitant reduction of NAD+ to NADH. FDHs of this family contain no metal ions or prosthetic groups. Catalysis occurs though direct transfer of a hydride ion to NAD+ without the stages of acid-base catalysis typically found in related dehydrogenases.
Pssm-ID: 240631 [Multi-domain] Cd Length: 310 Bit Score: 155.85 E-value: 1.49e-44
N(5)-(carboxyethyl)ornithine synthase; N(5)-(carboxyethyl)ornithine synthase (ceo_syn) catalyzes the NADP-dependent conversion of N5-(L-1-carboxyethyl)-L-ornithine to L-ornithine + pyruvate. Ornithine plays a key role in the urea cycle, which in mammals is used in arginine biosynthesis, and is a precursor in polyamine synthesis. ceo_syn is related to the NAD-dependent L-alanine dehydrogenases. Like formate dehydrogenase and related enzymes, ceo_syn is comprised of 2 domains connected by a long alpha helical stretch, each resembling a Rossmann fold NAD-binding domain. The NAD-binding domain is inserted within the linear sequence of the more divergent catalytic domain. These ceo_syn proteins have a partially conserved NAD-binding motif and active site residues that are characteristic of related enzymes such as Saccharopine Dehydrogenase.
Pssm-ID: 240658 [Multi-domain] Cd Length: 295 Bit Score: 137.36 E-value: 1.03e-37
Saccharopine Dehydrogenase like proteins; Saccharopine Dehydrogenase (SDH) and related ...
3-322
4.76e-08
Saccharopine Dehydrogenase like proteins; Saccharopine Dehydrogenase (SDH) and related proteins, including bifunctional lysine ketoglutarate reductase/SDH enzymes and N(5)-(carboxyethyl)ornithine synthases. SDH catalyzes the final step in the reversible NAD-dependent oxidative deamination of saccharopine to alpha-ketoglutarate and lysine, in the alpha-aminoadipate pathway of L-lysine biosynthesis. SDH is structurally related to formate dehydrogenase and similar enzymes, having a 2-domain structure in which a Rossmann-fold NAD(P)-binding domain is inserted within the linear sequence of a catalytic domain of related structure. Bifunctional lysine ketoglutarate reductase/SDH protein is a pair of enzymes linked on a single polypeptide chain that catalyze the initial, consecutive steps of lysine degradation. These proteins are related to the 2-domain saccharopine dehydrogenases.
Pssm-ID: 240623 [Multi-domain] Cd Length: 319 Bit Score: 54.16 E-value: 4.76e-08
bifunctional lysine ketoglutarate reductase /saccharopine dehydrogenase enzyme; Bifunctional lysine ketoglutarate reductase /saccharopine dehydrogenase protein is a pair of enzymes linked on a single polypeptide chain that catalyze the initial, consecutive steps of lysine degradation. These proteins are related to the 2-domain saccharopine dehydrogenases. Along with formate dehydrogenase and similar enzymes, SDH consists paired domains resembling Rossmann folds in which the NAD-binding domain is inserted within the linear sequence of the catalytic domain. In this bifunctional enzyme, the LKR domain is N-terminal of the SDH domain. These proteins have a close match to the active site motif of SDHs, and an NAD-binding site motif that is a partial match to that found in SDH and other FDH-related proteins.
Pssm-ID: 240665 [Multi-domain] Cd Length: 433 Bit Score: 48.32 E-value: 4.61e-06
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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