HPr kinase/phosphorylase catalyzes the ATP- as well as the pyrophosphate-dependent phosphorylation of 'Ser-46' in HPr, a phosphocarrier protein of the phosphoenolpyruvate-dependent sugar phosphotransferase system (PTS); also catalyzes the pyrophosphate-producing, inorganic phosphate-dependent dephosphorylation (phosphorolysis) of seryl-phosphorylated HPr (P-Ser-HPr)
Hpr(Ser) kinase/phosphatase; Members of this family are the bifunctional enzyme, HPr kinase ...
11-314
5.50e-132
Hpr(Ser) kinase/phosphatase; Members of this family are the bifunctional enzyme, HPr kinase/phosphatase. All members of the seed alignment (n=57) have a gene tightly clustered with a gene for the phospocarrier protein HPr, its target. [Regulatory functions, Protein interactions, Signal transduction, PTS]
:
Pssm-ID: 273214 Cd Length: 300 Bit Score: 377.58 E-value: 5.50e-132
Hpr(Ser) kinase/phosphatase; Members of this family are the bifunctional enzyme, HPr kinase ...
11-314
5.50e-132
Hpr(Ser) kinase/phosphatase; Members of this family are the bifunctional enzyme, HPr kinase/phosphatase. All members of the seed alignment (n=57) have a gene tightly clustered with a gene for the phospocarrier protein HPr, its target. [Regulatory functions, Protein interactions, Signal transduction, PTS]
Pssm-ID: 273214 Cd Length: 300 Bit Score: 377.58 E-value: 5.50e-132
HPr Serine kinase C-terminal domain; This family represents the C terminal kinase domain of ...
140-310
7.69e-74
HPr Serine kinase C-terminal domain; This family represents the C terminal kinase domain of Hpr Serine/threonine kinase PtsK. This kinase is the sensor in a multicomponent phosphorelay system in control of carbon catabolic repression in bacteria. This kinase in unusual in that it recognizes the tertiary structure of its target and is a member of a novel family unrelated to any previously described protein phosphorylating enzymes. X-ray analysis of the full-length crystalline enzyme from Staphylococcus xylosus at a resolution of 1.95 A shows the enzyme to consist of two clearly separated domains that are assembled in a hexameric structure resembling a three-bladed propeller.
Pssm-ID: 462176 Cd Length: 171 Bit Score: 225.05 E-value: 7.69e-74
HprK/P, the bifunctional histidine-containing protein kinase/phosphatase, controls the ...
149-293
3.91e-51
HprK/P, the bifunctional histidine-containing protein kinase/phosphatase, controls the phosphorylation state of the phosphocarrier protein HPr and regulates the utilization of carbon sources by gram-positive bacteria. It catalyzes both the ATP-dependent phosphorylation of Ser-46 of HPr and its dephosphorylation by phosphorolysis. The latter reaction uses inorganic phosphate as substrate and produces pyrophosphate. Phosphoenolpyruvate carboxykinase (PEPCK) and the C-terminal catalytic domain of HprK/P are structurally similar with conserved active site residues suggesting these two phosphotransferases have related functions. The HprK/P N-terminal domain is structurally similar to the N-terminal domains of the MurE and MurF amino acid ligases.
Pssm-ID: 238899 Cd Length: 149 Bit Score: 166.26 E-value: 3.91e-51
Hpr(Ser) kinase/phosphatase; Members of this family are the bifunctional enzyme, HPr kinase ...
11-314
5.50e-132
Hpr(Ser) kinase/phosphatase; Members of this family are the bifunctional enzyme, HPr kinase/phosphatase. All members of the seed alignment (n=57) have a gene tightly clustered with a gene for the phospocarrier protein HPr, its target. [Regulatory functions, Protein interactions, Signal transduction, PTS]
Pssm-ID: 273214 Cd Length: 300 Bit Score: 377.58 E-value: 5.50e-132
HPr Serine kinase C-terminal domain; This family represents the C terminal kinase domain of ...
140-310
7.69e-74
HPr Serine kinase C-terminal domain; This family represents the C terminal kinase domain of Hpr Serine/threonine kinase PtsK. This kinase is the sensor in a multicomponent phosphorelay system in control of carbon catabolic repression in bacteria. This kinase in unusual in that it recognizes the tertiary structure of its target and is a member of a novel family unrelated to any previously described protein phosphorylating enzymes. X-ray analysis of the full-length crystalline enzyme from Staphylococcus xylosus at a resolution of 1.95 A shows the enzyme to consist of two clearly separated domains that are assembled in a hexameric structure resembling a three-bladed propeller.
Pssm-ID: 462176 Cd Length: 171 Bit Score: 225.05 E-value: 7.69e-74
HprK/P, the bifunctional histidine-containing protein kinase/phosphatase, controls the ...
149-293
3.91e-51
HprK/P, the bifunctional histidine-containing protein kinase/phosphatase, controls the phosphorylation state of the phosphocarrier protein HPr and regulates the utilization of carbon sources by gram-positive bacteria. It catalyzes both the ATP-dependent phosphorylation of Ser-46 of HPr and its dephosphorylation by phosphorolysis. The latter reaction uses inorganic phosphate as substrate and produces pyrophosphate. Phosphoenolpyruvate carboxykinase (PEPCK) and the C-terminal catalytic domain of HprK/P are structurally similar with conserved active site residues suggesting these two phosphotransferases have related functions. The HprK/P N-terminal domain is structurally similar to the N-terminal domains of the MurE and MurF amino acid ligases.
Pssm-ID: 238899 Cd Length: 149 Bit Score: 166.26 E-value: 3.91e-51
HPr Serine kinase N terminus; This family represents the N-terminal region of Hpr Serine ...
11-138
8.50e-32
HPr Serine kinase N terminus; This family represents the N-terminal region of Hpr Serine/threonine kinase PtsK. This kinase is the sensor in a multicomponent phospho-relay system in control of carbon catabolic repression in bacteria. This kinase in unusual in that it recognizes the tertiary structure of its target and is a member of a novel family unrelated to any previously described protein phosphorylating enzymes. X-ray analysis of the full-length crystalline enzyme from Staphylococcus xylosus at a resolution of 1.95 A shows the enzyme to consist of two clearly separated domains that are assembled in a hexameric structure resembling a three-bladed propeller. The blades are formed by two N-terminal domains each, and the compact central hub assembles the C-terminal kinase domains.
Pssm-ID: 460614 Cd Length: 125 Bit Score: 115.18 E-value: 8.50e-32
Phosphoenolpyruvate carboxykinase (PEPCK), a critical gluconeogenic enzyme, catalyzes the ...
149-210
4.34e-09
Phosphoenolpyruvate carboxykinase (PEPCK), a critical gluconeogenic enzyme, catalyzes the first committed step in the diversion of tricarboxylic acid cycle intermediates toward gluconeogenesis. It catalyzes the reversible decarboxylation and phosphorylation of oxaloacetate to yield phosphoenolpyruvate and carbon dioxide, using a nucleotide molecule (ATP or GTP) for the phosphoryl transfer, and has a strict requirement for divalent metal ions for activity. PEPCK's separate into two phylogenetic groups based on their nucleotide substrate specificity (the ATP-, and GTP-dependent groups).HprK/P, the bifunctional histidine-containing protein kinase/phosphatase, controls the phosphorylation state of the phosphocarrier protein HPr and regulates the utilization of carbon sources by gram-positive bacteria. It catalyzes both the ATP-dependent phosphorylation of HPr and its dephosphorylation by phosphorolysis. PEPCK and the C-terminal catalytic domain of HprK/P are structurally similar with conserved active site residues suggesting that these two phosphotransferases have related functions.
Pssm-ID: 238418 [Multi-domain] Cd Length: 107 Bit Score: 53.45 E-value: 4.34e-09
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.
Click on the triangle to view details about the feature, including a multiple sequence alignment
of your query sequence and the protein sequences used to curate the domain model,
where hash marks (#) above the aligned sequences show the location of the conserved feature residues.
The thumbnail image, if present, provides an approximate view of the feature's location in 3 dimensions.
Click on the triangle for interactive 3D structure viewing options.
Functional characterization of the conserved domain architecture found on the query.
Click here to see more details.
This image shows a graphical summary of conserved domains identified on the query sequence.
The Show Concise/Full Display button at the top of the page can be used to select the desired level of detail: only top scoring hits
(labeled illustration) or all hits
(labeled illustration).
Domains are color coded according to superfamilies
to which they have been assigned. Hits with scores that pass a domain-specific threshold
(specific hits) are drawn in bright colors.
Others (non-specific hits) and
superfamily placeholders are drawn in pastel colors.
if a domain or superfamily has been annotated with functional sites (conserved features),
they are mapped to the query sequence and indicated through sets of triangles
with the same color and shade of the domain or superfamily that provides the annotation. Mouse over the colored bars or triangles to see descriptions of the domains and features.
click on the bars or triangles to view your query sequence embedded in a multiple sequence alignment of the proteins used to develop the corresponding domain model.
The table lists conserved domains identified on the query sequence. Click on the plus sign (+) on the left to display full descriptions, alignments, and scores.
Click on the domain model's accession number to view the multiple sequence alignment of the proteins used to develop the corresponding domain model.
To view your query sequence embedded in that multiple sequence alignment, click on the colored bars in the Graphical Summary portion of the search results page,
or click on the triangles, if present, that represent functional sites (conserved features)
mapped to the query sequence.
Concise Display shows only the best scoring domain model, in each hit category listed below except non-specific hits, for each region on the query sequence.
(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.
(labeled illustration) Full Display shows all domain models, in each hit category below, that meet or exceed the RPS-BLAST threshold for statistical significance.
(labeled illustration) Four types of hits can be shown, as available,
for each region on the query sequence:
specific hits meet or exceed a domain-specific e-value threshold
(illustrated example)
and represent a very high confidence that the query sequence belongs to the same protein family as the sequences use to create the domain model
non-specific hits
meet or exceed the RPS-BLAST threshold for statistical significance (default E-value cutoff of 0.01, or an E-value selected by user via the
advanced search options)
the domain superfamily to which the specific and non-specific hits belong
multi-domain models that were computationally detected and are likely to contain multiple single domains
Retrieve proteins that contain one or more of the domains present in the query sequence, using the Conserved Domain Architecture Retrieval Tool
(CDART).
Modify your query to search against a different database and/or use advanced search options
