S-adenosyl L-homocystein hydrolase [Arabidopsis thaliana]
Protein Classification
PLN02494 family protein( domain architecture ID 11476891)
PLN02494 family protein
List of domain hits
| Name | Accession | Description | Interval | E-value | |||||||
| PLN02494 | PLN02494 | adenosylhomocysteinase |
9-485 | 0e+00 | |||||||
adenosylhomocysteinase : Pssm-ID: 178111 [Multi-domain] Cd Length: 477 Bit Score: 1057.54 E-value: 0e+00
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| Name | Accession | Description | Interval | E-value | |||||||
| PLN02494 | PLN02494 | adenosylhomocysteinase |
9-485 | 0e+00 | |||||||
adenosylhomocysteinase Pssm-ID: 178111 [Multi-domain] Cd Length: 477 Bit Score: 1057.54 E-value: 0e+00
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| AdoHcyase | pfam05221 | S-adenosyl-L-homocysteine hydrolase; |
13-484 | 0e+00 | |||||||
S-adenosyl-L-homocysteine hydrolase; Pssm-ID: 461594 Cd Length: 429 Bit Score: 884.48 E-value: 0e+00
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| AdoHcyase | smart00996 | S-adenosyl-L-homocysteine hydrolase; |
15-484 | 0e+00 | |||||||
S-adenosyl-L-homocysteine hydrolase; Pssm-ID: 214963 [Multi-domain] Cd Length: 426 Bit Score: 848.75 E-value: 0e+00
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| SAM1 | COG0499 | S-adenosylhomocysteine hydrolase [Coenzyme transport and metabolism]; |
13-477 | 0e+00 | |||||||
S-adenosylhomocysteine hydrolase [Coenzyme transport and metabolism]; Pssm-ID: 440265 [Multi-domain] Cd Length: 420 Bit Score: 766.90 E-value: 0e+00
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| SAHH | cd00401 | S-Adenosylhomocysteine Hydrolase, NAD-binding and catalytic domains; S-adenosyl-L-homocysteine ... |
23-473 | 0e+00 | |||||||
S-Adenosylhomocysteine Hydrolase, NAD-binding and catalytic domains; S-adenosyl-L-homocysteine hydrolase (SAHH, AdoHycase) catalyzes the hydrolysis of S-adenosyl-L-homocysteine (AdoHyc) to form adenosine (Ado) and homocysteine (Hcy). The equilibrium lies far on the side of AdoHyc synthesis, but in nature the removal of Ado and Hyc is sufficiently fast, so that the net reaction is in the direction of hydrolysis. Since AdoHyc is a potent inhibitor of S-adenosyl-L-methionine dependent methyltransferases, AdoHycase plays a critical role in the modulation of the activity of various methyltransferases. The enzyme forms homotetramers, with each monomer binding one molecule of NAD+. Pssm-ID: 240619 [Multi-domain] Cd Length: 402 Bit Score: 746.97 E-value: 0e+00
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| ahcY | TIGR00936 | adenosylhomocysteinase; This enzyme hydrolyzes adenosylhomocysteine as part of a cycle for the ... |
23-477 | 0e+00 | |||||||
adenosylhomocysteinase; This enzyme hydrolyzes adenosylhomocysteine as part of a cycle for the regeneration of the methyl donor S-adenosylmethionine. Species that lack this enzyme are likely to have adenosylhomocysteine nucleosidase (EC 3.2.2.9), an enzyme which also acts as 5'-methyladenosine nucleosidase (see TIGR01704). [Energy metabolism, Amino acids and amines] Pssm-ID: 213572 Cd Length: 407 Bit Score: 592.84 E-value: 0e+00
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| Name | Accession | Description | Interval | E-value | |||||||
| PLN02494 | PLN02494 | adenosylhomocysteinase |
9-485 | 0e+00 | |||||||
adenosylhomocysteinase Pssm-ID: 178111 [Multi-domain] Cd Length: 477 Bit Score: 1057.54 E-value: 0e+00
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| AdoHcyase | pfam05221 | S-adenosyl-L-homocysteine hydrolase; |
13-484 | 0e+00 | |||||||
S-adenosyl-L-homocysteine hydrolase; Pssm-ID: 461594 Cd Length: 429 Bit Score: 884.48 E-value: 0e+00
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| PTZ00075 | PTZ00075 | Adenosylhomocysteinase; Provisional |
13-485 | 0e+00 | |||||||
Adenosylhomocysteinase; Provisional Pssm-ID: 240258 Cd Length: 476 Bit Score: 875.91 E-value: 0e+00
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| AdoHcyase | smart00996 | S-adenosyl-L-homocysteine hydrolase; |
15-484 | 0e+00 | |||||||
S-adenosyl-L-homocysteine hydrolase; Pssm-ID: 214963 [Multi-domain] Cd Length: 426 Bit Score: 848.75 E-value: 0e+00
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| PRK05476 | PRK05476 | S-adenosyl-L-homocysteine hydrolase; Provisional |
7-479 | 0e+00 | |||||||
S-adenosyl-L-homocysteine hydrolase; Provisional Pssm-ID: 235488 [Multi-domain] Cd Length: 425 Bit Score: 769.67 E-value: 0e+00
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| SAM1 | COG0499 | S-adenosylhomocysteine hydrolase [Coenzyme transport and metabolism]; |
13-477 | 0e+00 | |||||||
S-adenosylhomocysteine hydrolase [Coenzyme transport and metabolism]; Pssm-ID: 440265 [Multi-domain] Cd Length: 420 Bit Score: 766.90 E-value: 0e+00
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| SAHH | cd00401 | S-Adenosylhomocysteine Hydrolase, NAD-binding and catalytic domains; S-adenosyl-L-homocysteine ... |
23-473 | 0e+00 | |||||||
S-Adenosylhomocysteine Hydrolase, NAD-binding and catalytic domains; S-adenosyl-L-homocysteine hydrolase (SAHH, AdoHycase) catalyzes the hydrolysis of S-adenosyl-L-homocysteine (AdoHyc) to form adenosine (Ado) and homocysteine (Hcy). The equilibrium lies far on the side of AdoHyc synthesis, but in nature the removal of Ado and Hyc is sufficiently fast, so that the net reaction is in the direction of hydrolysis. Since AdoHyc is a potent inhibitor of S-adenosyl-L-methionine dependent methyltransferases, AdoHycase plays a critical role in the modulation of the activity of various methyltransferases. The enzyme forms homotetramers, with each monomer binding one molecule of NAD+. Pssm-ID: 240619 [Multi-domain] Cd Length: 402 Bit Score: 746.97 E-value: 0e+00
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| ahcY | TIGR00936 | adenosylhomocysteinase; This enzyme hydrolyzes adenosylhomocysteine as part of a cycle for the ... |
23-477 | 0e+00 | |||||||
adenosylhomocysteinase; This enzyme hydrolyzes adenosylhomocysteine as part of a cycle for the regeneration of the methyl donor S-adenosylmethionine. Species that lack this enzyme are likely to have adenosylhomocysteine nucleosidase (EC 3.2.2.9), an enzyme which also acts as 5'-methyladenosine nucleosidase (see TIGR01704). [Energy metabolism, Amino acids and amines] Pssm-ID: 213572 Cd Length: 407 Bit Score: 592.84 E-value: 0e+00
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| AdoHcyase_NAD | pfam00670 | S-adenosyl-L-homocysteine hydrolase, NAD binding domain; |
240-403 | 5.78e-110 | |||||||
S-adenosyl-L-homocysteine hydrolase, NAD binding domain; Pssm-ID: 395543 [Multi-domain] Cd Length: 162 Bit Score: 322.38 E-value: 5.78e-110
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| AdoHcyase_NAD | smart00997 | S-adenosyl-L-homocysteine hydrolase, NAD binding domain; |
240-403 | 4.47e-98 | |||||||
S-adenosyl-L-homocysteine hydrolase, NAD binding domain; Pssm-ID: 198065 [Multi-domain] Cd Length: 162 Bit Score: 292.05 E-value: 4.47e-98
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| FDH_GDH_like | cd12154 | Formate/glycerate dehydrogenases, D-specific 2-hydroxy acid dehydrogenases and related ... |
57-423 | 2.91e-43 | |||||||
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: 155.08 E-value: 2.91e-43
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| 2-Hacid_dh_C | pfam02826 | D-isomer specific 2-hydroxyacid dehydrogenase, NAD binding domain; This domain is inserted ... |
260-349 | 3.57e-07 | |||||||
D-isomer specific 2-hydroxyacid dehydrogenase, NAD binding domain; This domain is inserted into the catalytic domain, the large dehydrogenase and D-lactate dehydrogenase families in SCOP. N-terminal portion of which is represented by family pfam00389. Pssm-ID: 427007 [Multi-domain] Cd Length: 178 Bit Score: 50.19 E-value: 3.57e-07
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| 2-Hacid_dh_1 | cd05300 | Putative D-isomer specific 2-hydroxyacid dehydrogenase; 2-Hydroxyacid dehydrogenases catalyze ... |
260-349 | 4.59e-06 | |||||||
Putative D-isomer specific 2-hydroxyacid dehydrogenase; 2-Hydroxyacid dehydrogenases 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/glycerate and related dehydrogenases of the D-specific 2-hydroxyacid dehydrogenase superfamily include groups such as formate dehydrogenase, glycerate dehydrogenase, L-alanine dehydrogenase, and S-adenosylhomocysteine hydrolase. Despite often low sequence identity, these proteins typically have a characteristic arrangement of 2 similar subdomains of the alpha/beta Rossmann fold NAD+ binding form. The NAD+ binding domain is inserted within the linear sequence of the mostly N-terminal catalytic domain, which has a similar domain structure to the internal NAD binding domain. Structurally, these domains are connected by extended alpha helices and create a cleft in which NAD is bound, primarily to the C-terminal portion of the 2nd (internal) domain. Some related proteins have similar structural subdomains but with a tandem arrangement of the catalytic and NAD-binding subdomains in the linear sequence. While many members of this family are dimeric, alanine DH is hexameric and phosphoglycerate DH is tetrameric. 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 the hydride ion to NAD+ without the stages of acid-base catalysis typically found in related dehydrogenases. FDHs are found in all methylotrophic microorganisms in energy production and in the stress responses of plants. Pssm-ID: 240625 [Multi-domain] Cd Length: 313 Bit Score: 48.29 E-value: 4.59e-06
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| 2-Hacid_dh_11 | cd12175 | Putative D-isomer specific 2-hydroxyacid dehydrogenases, NAD-binding and catalytic domains; ... |
258-349 | 1.62e-05 | |||||||
Putative D-isomer specific 2-hydroxyacid dehydrogenases, NAD-binding and catalytic domains; 2-Hydroxyacid dehydrogenases 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/glycerate and related dehydrogenases of the D-specific 2-hydroxyacid dehydrogenase superfamily include groups such as formate dehydrogenase, glycerate dehydrogenase, L-alanine dehydrogenase, and S-adenosylhomocysteine hydrolase. Despite often low sequence identity, these proteins typically have a characteristic arrangement of 2 similar subdomains of the alpha/beta Rossmann fold NAD+ binding form. The NAD+ binding domain is inserted within the linear sequence of the mostly N-terminal catalytic domain, which has a similar domain structure to the internal NAD binding domain. Structurally, these domains are connected by extended alpha helices and create a cleft in which NAD is bound, primarily to the C-terminal portion of the 2nd (internal) domain. Some related proteins have similar structural subdomain but with a tandem arrangement of the catalytic and NAD-binding subdomains in the linear sequence. While many members of this family are dimeric, alanine DH is hexameric and phosphoglycerate DH is tetrameric. Pssm-ID: 240652 [Multi-domain] Cd Length: 311 Bit Score: 46.80 E-value: 1.62e-05
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| 2-Hacid_dh_6 | cd12165 | Putative D-isomer specific 2-hydroxyacid dehydrogenases; 2-Hydroxyacid dehydrogenases catalyze ... |
258-349 | 3.44e-05 | |||||||
Putative D-isomer specific 2-hydroxyacid dehydrogenases; 2-Hydroxyacid dehydrogenases 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/glycerate and related dehydrogenases of the D-specific 2-hydroxyacid dehydrogenase superfamily include groups such as formate dehydrogenase, glycerate dehydrogenase, L-alanine dehydrogenase, and S-adenosylhomocysteine hydrolase. Despite often low sequence identity, these proteins typically have a characteristic arrangement of 2 similar subdomains of the alpha/beta Rossmann fold NAD+ binding form. The NAD+ binding domain is inserted within the linear sequence of the mostly N-terminal catalytic domain, which has a similar domain structure to the internal NAD binding domain. Structurally, these domains are connected by extended alpha helices and create a cleft in which NAD is bound, primarily to the C-terminal portion of the 2nd (internal) domain. Some related proteins have similar structural subdomain but with a tandem arrangement of the catalytic and NAD-binding subdomains in the linear sequence. While many members of this family are dimeric, alanine DH is hexameric and phosphoglycerate DH is tetrameric. Pssm-ID: 240642 [Multi-domain] Cd Length: 314 Bit Score: 45.70 E-value: 3.44e-05
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| TrkA | COG0569 | Trk/Ktr K+ transport system regulatory component TrkA/KtrA/KtrC, RCK domain [Inorganic ion ... |
266-327 | 3.57e-05 | |||||||
Trk/Ktr K+ transport system regulatory component TrkA/KtrA/KtrC, RCK domain [Inorganic ion transport and metabolism, Signal transduction mechanisms]; Pssm-ID: 440335 [Multi-domain] Cd Length: 296 Bit Score: 45.44 E-value: 3.57e-05
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| 2-Hacid_dh_12 | cd12177 | Putative D-isomer specific 2-hydroxyacid dehydrogenases, NAD-binding and catalytic domains; ... |
260-347 | 3.96e-05 | |||||||
Putative D-isomer specific 2-hydroxyacid dehydrogenases, NAD-binding and catalytic domains; 2-Hydroxyacid dehydrogenases 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/glycerate and related dehydrogenases of the D-specific 2-hydroxyacid dehydrogenase superfamily include groups such as formate dehydrogenase, glycerate dehydrogenase, L-alanine dehydrogenase, and S-adenosylhomocysteine hydrolase. Despite often low sequence identity, these proteins typically have a characteristic arrangement of 2 similar subdomains of the alpha/beta Rossmann fold NAD+ binding form. The NAD+ binding domain is inserted within the linear sequence of the mostly N-terminal catalytic domain, which has a similar domain structure to the internal NAD binding domain. Structurally, these domains are connected by extended alpha helices and create a cleft in which NAD is bound, primarily to the C-terminal portion of the 2nd (internal) domain. Some related proteins have similar structural subdomain but with a tandem arrangement of the catalytic and NAD-binding subdomains in the linear sequence. While many members of this family are dimeric, alanine DH is hexameric and phosphoglycerate DH is tetrameric. Pssm-ID: 240654 [Multi-domain] Cd Length: 321 Bit Score: 45.39 E-value: 3.96e-05
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| PGDH_like_2 | cd12172 | Putative D-3-Phosphoglycerate Dehydrogenases, NAD-binding and catalytic domains; ... |
260-347 | 7.38e-05 | |||||||
Putative D-3-Phosphoglycerate Dehydrogenases, NAD-binding and catalytic domains; Phosphoglycerate dehydrogenases (PGDHs) catalyze the initial step in the biosynthesis of L-serine from D-3-phosphoglycerate. PGDHs come in 3 distinct structural forms, with this first group being related to 2-hydroxy acid dehydrogenases, sharing structural similarity to formate and glycerate dehydrogenases of the D-specific 2-hydroxyacid dehydrogenase superfamily, which also include groups such as L-alanine dehydrogenase and S-adenosylhomocysteine hydrolase. Despite often low sequence identity, these proteins typically have a characteristic arrangement of 2 similar subdomains of the alpha/beta Rossmann fold NAD+ binding form. The NAD+ binding domain is inserted within the linear sequence of the mostly N-terminal catalytic domain, which has a similar domain structure to the internal NAD binding domain. Structurally, these domains are connected by extended alpha helices and create a cleft in which NAD is bound, primarily to the C-terminal portion of the 2nd (internal) domain. Some related proteins have similar structural subdomain but with a tandem arrangement of the catalytic and NAD-binding subdomains in the linear sequence. Many, not all, members of this family are dimeric. Pssm-ID: 240649 [Multi-domain] Cd Length: 306 Bit Score: 44.79 E-value: 7.38e-05
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| PGDH_2 | cd05303 | Phosphoglycerate dehydrogenase (PGDH) NAD-binding and catalytic domains; Phosphoglycerate ... |
260-347 | 1.07e-04 | |||||||
Phosphoglycerate dehydrogenase (PGDH) NAD-binding and catalytic domains; Phosphoglycerate dehydrogenase (PGDH) catalyzes the initial step in the biosynthesis of L-serine from D-3-phosphoglycerate. PGDH comes in 3 distinct structural forms, with this first group being related to 2-hydroxy acid dehydrogenases, sharing structural similarity to formate and glycerate dehydrogenases. PGDH in E. coli and Mycobacterium tuberculosis form tetramers, with subunits containing a Rossmann-fold NAD binding domain. Formate/glycerate and related dehydrogenases of the D-specific 2-hydroxyacid dehydrogenase superfamily include groups such as formate dehydrogenase, glycerate dehydrogenase, L-alanine dehydrogenase, and S-Adenosylhomocysteine Hydrolase. Despite often low sequence identity, these proteins typically have a characteristic arrangement of 2 similar subdomains of the alpha/beta Rossmann fold NAD+ binding form. The NAD+ binding domain is inserted within the linear sequence of the mostly N-terminal catalytic domain, which has a similar domain structure to the internal NAD binding domain. Structurally, these domains are connected by extended alpha helices and create a cleft in which NAD is bound, primarily to the C-terminal portion of the 2nd (internal) domain. Some related proteins have similar structural subdomain but with a tandem arrangement of the catalytic and NAD-binding subdomains in the linear sequence. Pssm-ID: 240628 [Multi-domain] Cd Length: 301 Bit Score: 44.07 E-value: 1.07e-04
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| LDH | cd12186 | D-Lactate dehydrogenase and D-2-Hydroxyisocaproic acid dehydrogenase (D-HicDH), NAD-binding ... |
263-347 | 2.08e-04 | |||||||
D-Lactate dehydrogenase and D-2-Hydroxyisocaproic acid dehydrogenase (D-HicDH), NAD-binding and catalytic domains; D-Lactate dehydrogenase (LDH) catalyzes the interconversion of pyruvate and lactate, and is a member of the 2-hydroxyacid dehydrogenases family. LDH is homologous to D-2-hydroxyisocaproic acid dehydrogenase(D-HicDH) and shares the 2 domain structure of formate dehydrogenase. D-HicDH is a NAD-dependent member of the hydroxycarboxylate dehydrogenase family, and shares the Rossmann fold typical of many NAD binding proteins. HicDH from Lactobacillus casei forms a monomer and catalyzes the reaction R-CO-COO(-) + NADH + H+ to R-COH-COO(-) + NAD+. D-HicDH, like the structurally distinct L-HicDH, exhibits low side-chain R specificity, accepting a wide range of 2-oxocarboxylic acid side chains. Formate/glycerate and related dehydrogenases of the D-specific 2-hydroxyacid dehydrogenase superfamily include groups such as formate dehydrogenase, glycerate dehydrogenase, L-alanine dehydrogenase, and S-Adenosylhomocysteine Hydrolase. Despite often low sequence identity, these proteins typically have a characteristic arrangement of 2 similar subdomains of the alpha/beta Rossmann fold NAD+ binding form. The NAD+ binding domain is inserted within the linear sequence of the mostly N-terminal catalytic domain, which has a similar domain structure to the internal NAD binding domain. Structurally, these domains are connected by extended alpha helices and create a cleft in which NAD is bound, primarily to the C-terminal portion of the 2nd (internal) domain. Pssm-ID: 240662 Cd Length: 329 Bit Score: 43.29 E-value: 2.08e-04
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| 2-Hacid_dh_10 | cd12171 | Putative D-isomer specific 2-hydroxyacid dehydrogenases; 2-Hydroxyacid dehydrogenases catalyze ... |
259-347 | 3.84e-04 | |||||||
Putative D-isomer specific 2-hydroxyacid dehydrogenases; 2-Hydroxyacid dehydrogenases 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/glycerate and related dehydrogenases of the D-specific 2-hydroxyacid dehydrogenase superfamily include groups such as formate dehydrogenase, glycerate dehydrogenase, L-alanine dehydrogenase, and S-adenosylhomocysteine hydrolase. Despite often low sequence identity, these proteins typically have a characteristic arrangement of 2 similar subdomains of the alpha/beta Rossmann fold NAD+ binding form. The NAD+ binding domain is inserted within the linear sequence of the mostly N-terminal catalytic domain, which has a similar domain structure to the internal NAD binding domain. Structurally, these domains are connected by extended alpha helices and create a cleft in which NAD is bound, primarily to the C-terminal portion of the 2nd (internal) domain. Some related proteins have similar structural subdomain but with a tandem arrangement of the catalytic and NAD-binding subdomains in the linear sequence. While many members of this family are dimeric, alanine DH is hexameric and phosphoglycerate DH is tetrameric. Pssm-ID: 240648 [Multi-domain] Cd Length: 310 Bit Score: 42.53 E-value: 3.84e-04
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| TrkA_N | pfam02254 | TrkA-N domain; This domain is found in a wide variety of proteins. These proteins include ... |
266-345 | 6.18e-04 | |||||||
TrkA-N domain; This domain is found in a wide variety of proteins. These proteins include potassium channels, phosphoesterases, and various other transporters. This domain binds to NAD. Pssm-ID: 426679 [Multi-domain] Cd Length: 115 Bit Score: 39.43 E-value: 6.18e-04
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| AlaDh_PNT_C | smart01002 | Alanine dehydrogenase/PNT, C-terminal domain; Alanine dehydrogenase catalyzes the ... |
261-348 | 9.53e-04 | |||||||
Alanine dehydrogenase/PNT, C-terminal domain; Alanine dehydrogenase catalyzes the NAD-dependent reversible reductive amination of pyruvate into alanine. Pssm-ID: 214966 [Multi-domain] Cd Length: 149 Bit Score: 39.80 E-value: 9.53e-04
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| Kch | COG1226 | Voltage-gated potassium channel Kch [Inorganic ion transport and metabolism]; |
265-358 | 1.02e-03 | |||||||
Voltage-gated potassium channel Kch [Inorganic ion transport and metabolism]; Pssm-ID: 440839 [Multi-domain] Cd Length: 279 Bit Score: 40.87 E-value: 1.02e-03
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| PRK12829 | PRK12829 | short chain dehydrogenase; Provisional |
255-320 | 2.00e-03 | |||||||
short chain dehydrogenase; Provisional Pssm-ID: 183778 [Multi-domain] Cd Length: 264 Bit Score: 40.04 E-value: 2.00e-03
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| PRK14191 | PRK14191 | bifunctional methylenetetrahydrofolate dehydrogenase/methenyltetrahydrofolate cyclohydrolase ... |
224-349 | 2.68e-03 | |||||||
bifunctional methylenetetrahydrofolate dehydrogenase/methenyltetrahydrofolate cyclohydrolase FolD; Pssm-ID: 172679 [Multi-domain] Cd Length: 285 Bit Score: 39.75 E-value: 2.68e-03
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| PRK08324 | PRK08324 | bifunctional aldolase/short-chain dehydrogenase; |
261-331 | 3.37e-03 | |||||||
bifunctional aldolase/short-chain dehydrogenase; Pssm-ID: 236241 [Multi-domain] Cd Length: 681 Bit Score: 39.83 E-value: 3.37e-03
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| SDR_c12 | cd08944 | classical (c) SDR, subgroup 12; These are classical SDRs, with the canonical active site ... |
260-294 | 4.34e-03 | |||||||
classical (c) SDR, subgroup 12; These are classical SDRs, with the canonical active site tetrad and glycine-rich NAD-binding motif. SDRs are a functionally diverse family of oxidoreductases that have a single domain with a structurally conserved Rossmann fold (alpha/beta folding pattern with a central beta-sheet), an NAD(P)(H)-binding region, and a structurally diverse C-terminal region. Classical SDRs are typically about 250 residues long, while extended SDRs are approximately 350 residues. Sequence identity between different SDR enzymes are typically in the 15-30% range, but the enzymes share the Rossmann fold NAD-binding motif and characteristic NAD-binding and catalytic sequence patterns. These enzymes catalyze a wide range of activities including the metabolism of steroids, cofactors, carbohydrates, lipids, aromatic compounds, and amino acids, and act in redox sensing. Classical SDRs have an TGXXX[AG]XG cofactor binding motif and a YXXXK active site motif, with the Tyr residue of the active site motif serving as a critical catalytic residue (Tyr-151, human 15-hydroxyprostaglandin dehydrogenase (15-PGDH) numbering). In addition to the Tyr and Lys, there is often an upstream Ser (Ser-138, 15-PGDH numbering) and/or an Asn (Asn-107, 15-PGDH numbering) contributing to the active site; while substrate binding is in the C-terminal region, which determines specificity. The standard reaction mechanism is a 4-pro-S hydride transfer and proton relay involving the conserved Tyr and Lys, a water molecule stabilized by Asn, and nicotinamide. Extended SDRs have additional elements in the C-terminal region, and typically have a TGXXGXXG cofactor binding motif. Complex (multidomain) SDRs such as ketoreductase domains of fatty acid synthase have a GGXGXXG NAD(P)-binding motif and an altered active site motif (YXXXN). Fungal type ketoacyl reductases have a TGXXXGX(1-2)G NAD(P)-binding motif. Some atypical SDRs have lost catalytic activity and/or have an unusual NAD(P)-binding motif and missing or unusual active site residues. Reactions catalyzed within the SDR family include isomerization, decarboxylation, epimerization, C=N bond reduction, dehydratase activity, dehalogenation, Enoyl-CoA reduction, and carbonyl-alcohol oxidoreduction. Pssm-ID: 187648 [Multi-domain] Cd Length: 246 Bit Score: 39.01 E-value: 4.34e-03
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| NAD_bind_Leu_Phe_Val_DH | cd01075 | NAD(P) binding domain of leucine dehydrogenase, phenylalanine dehydrogenase, and valine ... |
242-322 | 7.55e-03 | |||||||
NAD(P) binding domain of leucine dehydrogenase, phenylalanine dehydrogenase, and valine dehydrogenase; Amino acid dehydrogenase (DH) is a widely distributed family of enzymes that catalyzes the oxidative deamination of an amino acid to its keto acid and ammonia with concomitant reduction of NADP+. For example, leucine DH catalyzes the reversible oxidative deamination of L-leucine and several other straight or branched chain amino acids to the corresponding 2-oxoacid derivative. Amino acid DH -like NAD(P)-binding domains are members of the Rossmann fold superfamily and include glutamate, leucine, and phenylalanine DHs, methylene tetrahydrofolate DH, methylene-tetrahydromethanopterin DH, methylene-tetrahydropholate DH/cyclohydrolase, Shikimate DH-like proteins, malate oxidoreductases, and glutamyl tRNA reductase. Amino acid DHs catalyze the deamination of amino acids to keto acids with NAD(P)+ as a cofactor. The NAD(P)-binding Rossmann fold superfamily includes a wide variety of protein families including NAD(P)- binding domains of alcohol DHs, tyrosine-dependent oxidoreductases, glyceraldehyde-3-phosphate DH, lactate/malate DHs, formate/glycerate DHs, siroheme synthases, 6-phosphogluconate DH, amino acid DHs, repressor rex, NAD-binding potassium channel domain, CoA-binding, and ornithine cyclodeaminase-like domains. These domains have an alpha-beta-alpha configuration. NAD binding involves numerous hydrogen and van der Waals contacts. Pssm-ID: 133444 Cd Length: 200 Bit Score: 37.57 E-value: 7.55e-03
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