MqnA family menaquinone biosynthesis protein such as chorismate dehydratase that catalyzes the dehydration of chorismate into 3-[(1-carboxyvinyl)oxy]benzoate, a step in the biosynthesis of menaquinone, a lipid-soluble molecule that participates in the bacterial electron transport chain
The conserved hypothetical protein SCO4506 exhibits the type 2 periplasmic-binidng protein ...
1-257
4.21e-102
The conserved hypothetical protein SCO4506 exhibits the type 2 periplasmic-binidng protein fold; This group includes the SCO4506 protein from Streptomyces coelicolor and related hypothetical proteins. SCO4506 is an ortholog of Ttha1568 (MqnD) from Thermus thermophilies HB8. MqnD is an enzyme within an alternative menaquinone biosynthetic pathway that catalyzes the conversion of cyclic de-hypoxanthine futalosine to 1,4-dihydroxy-6-naphthoate. Menaquinone (MK; vitamin K) is an essential lipid-soluble carrier that shuttles electrons between membrane-bound protein complexes in the electron transport chain. SCO4506 has significant structural homology with the members of type 2 periplasmic-binding fold protein superfamily. The PBP2 proteins are typically comprised of two globular subdomains connected by a flexible hinge and bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap.
:
Pssm-ID: 270352 Cd Length: 256 Bit Score: 297.93 E-value: 4.21e-102
The conserved hypothetical protein SCO4506 exhibits the type 2 periplasmic-binidng protein ...
1-257
4.21e-102
The conserved hypothetical protein SCO4506 exhibits the type 2 periplasmic-binidng protein fold; This group includes the SCO4506 protein from Streptomyces coelicolor and related hypothetical proteins. SCO4506 is an ortholog of Ttha1568 (MqnD) from Thermus thermophilies HB8. MqnD is an enzyme within an alternative menaquinone biosynthetic pathway that catalyzes the conversion of cyclic de-hypoxanthine futalosine to 1,4-dihydroxy-6-naphthoate. Menaquinone (MK; vitamin K) is an essential lipid-soluble carrier that shuttles electrons between membrane-bound protein complexes in the electron transport chain. SCO4506 has significant structural homology with the members of type 2 periplasmic-binding fold protein superfamily. The PBP2 proteins are typically comprised of two globular subdomains connected by a flexible hinge and bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap.
Pssm-ID: 270352 Cd Length: 256 Bit Score: 297.93 E-value: 4.21e-102
Chorismate dehydratase (menaquinone biosynthesis, futalosine pathway) [Coenzyme transport and ...
1-267
2.07e-99
Chorismate dehydratase (menaquinone biosynthesis, futalosine pathway) [Coenzyme transport and metabolism]; Chorismate dehydratase (menaquinone biosynthesis, futalosine pathway) is part of the Pathway/BioSystem: Menaquinone biosynthesis
Pssm-ID: 441036 Cd Length: 268 Bit Score: 291.74 E-value: 2.07e-99
Menaquinone biosynthesis; This family includes two enzymes which are involved in menaquinone ...
3-257
1.50e-53
Menaquinone biosynthesis; This family includes two enzymes which are involved in menaquinone biosynthesis. One which catalyzes the conversion of cyclic de-hypoxanthine futalosine to 1,4-dihydroxy-6-naphthoate, and one which may be involved in the conversion of chorismate to futalosine. These enzymes comprise two domains with alpha/beta structures, a large domain and a small domain. A pocket between the two domains may form the active site, a conserved histidine located within this pocket could be the catalytic base.
Pssm-ID: 426881 Cd Length: 252 Bit Score: 174.27 E-value: 1.50e-53
The conserved hypothetical protein SCO4506 exhibits the type 2 periplasmic-binidng protein ...
1-257
4.21e-102
The conserved hypothetical protein SCO4506 exhibits the type 2 periplasmic-binidng protein fold; This group includes the SCO4506 protein from Streptomyces coelicolor and related hypothetical proteins. SCO4506 is an ortholog of Ttha1568 (MqnD) from Thermus thermophilies HB8. MqnD is an enzyme within an alternative menaquinone biosynthetic pathway that catalyzes the conversion of cyclic de-hypoxanthine futalosine to 1,4-dihydroxy-6-naphthoate. Menaquinone (MK; vitamin K) is an essential lipid-soluble carrier that shuttles electrons between membrane-bound protein complexes in the electron transport chain. SCO4506 has significant structural homology with the members of type 2 periplasmic-binding fold protein superfamily. The PBP2 proteins are typically comprised of two globular subdomains connected by a flexible hinge and bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap.
Pssm-ID: 270352 Cd Length: 256 Bit Score: 297.93 E-value: 4.21e-102
Chorismate dehydratase (menaquinone biosynthesis, futalosine pathway) [Coenzyme transport and ...
1-267
2.07e-99
Chorismate dehydratase (menaquinone biosynthesis, futalosine pathway) [Coenzyme transport and metabolism]; Chorismate dehydratase (menaquinone biosynthesis, futalosine pathway) is part of the Pathway/BioSystem: Menaquinone biosynthesis
Pssm-ID: 441036 Cd Length: 268 Bit Score: 291.74 E-value: 2.07e-99
Menaquinone biosynthesis; This family includes two enzymes which are involved in menaquinone ...
3-257
1.50e-53
Menaquinone biosynthesis; This family includes two enzymes which are involved in menaquinone biosynthesis. One which catalyzes the conversion of cyclic de-hypoxanthine futalosine to 1,4-dihydroxy-6-naphthoate, and one which may be involved in the conversion of chorismate to futalosine. These enzymes comprise two domains with alpha/beta structures, a large domain and a small domain. A pocket between the two domains may form the active site, a conserved histidine located within this pocket could be the catalytic base.
Pssm-ID: 426881 Cd Length: 252 Bit Score: 174.27 E-value: 1.50e-53
Menaquinone biosynthetic enzyme and related hypothetical proteins; the type 2 ...
1-194
9.78e-14
Menaquinone biosynthetic enzyme and related hypothetical proteins; the type 2 periplasmic-binding protein fold; This family represents MqnD, an enzyme within the alternative menaquinone biosynthetic pathway, and related conserved hypothetical proteins. Menaquinone (MK; vitamin K) is an essential lipid-soluble carrier that shuttles electrons between membrane-bound protein complexes in the electron transport chain. The members include Ttha1568, MqnD from Thermus thermophiles HB8, and the conserved hypothetical proteins SCO4506 from Streptomyces coelicolor, Af1704 from Archaeoglobus DSM 4304, Dr0370 from Deinococcus radiodurans, and Ca3427 from candida albicans. They all have significant structural homology with the members of type 2 periplasmic-binding fold protein superfamily (PBP2). The PBP2 proteins are typically comprised of two globular subdomains connected by a flexible hinge and bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap.
Pssm-ID: 270252 [Multi-domain] Cd Length: 261 Bit Score: 69.37 E-value: 9.78e-14
1,4-dihydroxy-6-naphtoate synthase (menaquinone biosynthesis, futalosine pathway) [Coenzyme transport and metabolism]; 1,4-dihydroxy-6-naphtoate synthase (menaquinone biosynthesis, futalosine pathway) is part of the Pathway/BioSystem: Menaquinone biosynthesis
Pssm-ID: 441710 Cd Length: 276 Bit Score: 40.12 E-value: 8.42e-04
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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