ROK (Repressor, ORF, Kinase) family protein functions as a sugar kinase or may act as a transcriptional regulator involved in carbohydrate-dependent transcriptional control
ATPase-like domain of the ASKHA (Acetate and Sugar Kinases/Hsc70/Actin) superfamily; The ASKHA ...
79-395
4.21e-32
ATPase-like domain of the ASKHA (Acetate and Sugar Kinases/Hsc70/Actin) superfamily; The ASKHA superfamily, also known as actin-like ATPase domain superfamily, includes acetate and sugar kinases, heat-shock cognate 70 (Hsp70) and actin family proteins. They either function as conformational hydrolases (e.g. Hsp70, actin) that perform simple ATP hydrolysis, or as metabolite kinases (e.g. glycerol kinase) that catalyze the transfer of a phosphoryl group from ATP to their cognate substrates. Both activities depend on the presence of specific metal cations. ASKHA superfamily members share a common core fold that includes an actin-like ATPase domain consisting of two subdomains (denoted I _ II) with highly similar ribonuclease (RNase) H-like folds. The fold of each subdomain is characterized by a central five strand beta-sheet and flanking alpha-helices. The two subdomains form an active site cleft in which ATP binds at the bottom. Another common feature of ASKHA superfamily members is the coupling of phosphoryl-group transfer to conformational rearrangement, leading to domain closure. Substrate binding triggers protein motion.
The actual alignment was detected with superfamily member cd24074:
Pssm-ID: 483947 [Multi-domain] Cd Length: 322 Bit Score: 123.58 E-value: 4.21e-32
ATPase-like domain of protein Mlc and similar proteins; Mlc, also called making large colonies ...
79-395
4.21e-32
ATPase-like domain of protein Mlc and similar proteins; Mlc, also called making large colonies protein, acts as a transcriptional repressor that regulates the expression of proteins that are part of the phosphotransferase system for sugar uptake. It regulates the expression of malT. Members of this subfamily belong to the kinase (ROK) family, a group of proteins that have sugar kinase and/or transcriptional repressor activities.
Pssm-ID: 466924 [Multi-domain] Cd Length: 322 Bit Score: 123.58 E-value: 4.21e-32
ATPase-like domain of protein Mlc and similar proteins; Mlc, also called making large colonies ...
79-395
4.21e-32
ATPase-like domain of protein Mlc and similar proteins; Mlc, also called making large colonies protein, acts as a transcriptional repressor that regulates the expression of proteins that are part of the phosphotransferase system for sugar uptake. It regulates the expression of malT. Members of this subfamily belong to the kinase (ROK) family, a group of proteins that have sugar kinase and/or transcriptional repressor activities.
Pssm-ID: 466924 [Multi-domain] Cd Length: 322 Bit Score: 123.58 E-value: 4.21e-32
ATPase-like domain of N-acetylglucosamine repressor (NagC) and similar proteins; NagC acts as ...
92-395
9.19e-11
ATPase-like domain of N-acetylglucosamine repressor (NagC) and similar proteins; NagC acts as a repressor of the nagEBACD operon involved in the uptake and degradation of the amino sugars, N-acetyl-D-glucosamine (GlcNAc) and glucosamine (GlcN). It acts both as an activator and a repressor for the transcription of the glmSU operon, encoding proteins necessary for the synthesis of GlcN (glmS) and the formation of UDP-GlcNAc (glmU). Members of this subfamily belong to the kinase (ROK) family, a group of proteins that have sugar kinase and/or transcriptional repressor activities.
Pssm-ID: 466925 [Multi-domain] Cd Length: 315 Bit Score: 62.38 E-value: 9.19e-11
ATPase-like domain of Staphylococcus aureus xylose repressor (XylR) and similar proteins; This ...
92-354
2.24e-10
ATPase-like domain of Staphylococcus aureus xylose repressor (XylR) and similar proteins; This subfamily includes a group of uncharacterized proteins similar to Staphylococcus aureus xylose repressor (SaXylR), which belongs to the kinase (ROK) family, a group of proteins that have sugar kinase and/or transcriptional repressor activities. SaXylR acts as a transcriptional repressor of xylose-utilizing enzymes. It lacks the cysteine-rich zinc-binding motif, which presents in other family members.
Pssm-ID: 466927 [Multi-domain] Cd Length: 295 Bit Score: 61.02 E-value: 2.24e-10
nucleotide-binding domain (NBD) of Thermotoga maritima N-acetylglucosamine kinase (TM1224) and ...
91-385
2.46e-09
nucleotide-binding domain (NBD) of Thermotoga maritima N-acetylglucosamine kinase (TM1224) and similar proteins; This subfamily includes a group of uncharacterized proteins similar to N-acetylglucosamine kinase (Tm1224; EC 2.7.1.59) from Thermotoga maritima, which belongs to kinase (ROK) family, a group of proteins that have sugar kinase and/or transcriptional repressor activities. Tm1224 lacks the cysteine-rich zinc-binding motif, which presents in other family members.
Pssm-ID: 466909 [Multi-domain] Cd Length: 305 Bit Score: 57.98 E-value: 2.46e-09
ATPase-like domain of Listeria monocytogenes Lmo0178 and similar proteins; This subfamily ...
92-336
3.51e-08
ATPase-like domain of Listeria monocytogenes Lmo0178 and similar proteins; This subfamily includes a group of uncharacterized proteins similar to Listeria monocytogenes Lmo0178 protein, which is a predicted transcription repressor belonging to the kinase (ROK) family, a group of proteins that have sugar kinase and/or transcriptional repressor activities.
Pssm-ID: 466921 [Multi-domain] Cd Length: 312 Bit Score: 54.60 E-value: 3.51e-08
ATPase-like domain of Escherichia coli protein YphH and similar proteins; This subfamily ...
83-343
2.08e-05
ATPase-like domain of Escherichia coli protein YphH and similar proteins; This subfamily includes a group of uncharacterized proteins similar to Escherichia coli protein YphH that belongs to the kinase (ROK) family, a group of proteins that have sugar kinase and/or transcriptional repressor activities.
Pssm-ID: 466922 [Multi-domain] Cd Length: 308 Bit Score: 45.87 E-value: 2.08e-05
ATPase-like domain of the ROK (Repressor, ORF, Kinase) domain family; The ROK family ...
91-214
2.97e-05
ATPase-like domain of the ROK (Repressor, ORF, Kinase) domain family; The ROK family corresponds to a group of proteins including sugar kinases, transcriptional repressors, and yet uncharacterized open reading frames. ROK family sugar kinases phosphorylate a range of structurally distinct hexoses including the key carbon source D-glucose, various glucose epimers, and several acetylated hexosamines. The sugar kinases include N-acetyl-D-glucosamine kinase (NAGK; EC 2.7.1.59), polyphosphate glucokinase (PPGK; EC 2.7.1.63/EC 2.7.1.2), glucokinase (GLK; EC 2.7.1.2), fructokinase (FRK; EC 2.7.1.4), hexokinase (HK; EC 2.7.1.1), D-allose kinase (AlsK; EC 2.7.1.55), bifunctional UDP-N-acetylglucosamine 2-epimerase/N-acetylmannosamine kinase (GNE; EC 3.2.1.183/EC 2.7.1.60), N-acetylmannosamine kinase (NanK; EC 2.7.1.60), beta-glucoside kinase (BglK; EC 2.7.1.85), and N-acetylglucosamine kinase (EC 2.7.1.59). The family also contains the repressor proteins, such as N-acetylglucosamine repressor (NagC), xylose repressor (XylR), cyclobis-(1-6)-alpha-nigerosyl repressor (CYANR) and protein Mlc. ROK kinases harbor a conserved N-terminal ATP binding motif of sequence DxGxT, while ROK repressors possess a N-terminal extension that contains a canonical helix-turn-helix DNA binding motif. The ROK family proteins belong to the ASKHA (Acetate and Sugar Kinases/Hsc70/Actin) superfamily of phosphotransferases, all members of which share a common characteristic five-stranded beta sheet occurring in both the N- and C-terminal domains.
Pssm-ID: 466849 [Multi-domain] Cd Length: 239 Bit Score: 45.15 E-value: 2.97e-05
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
