DEXH-box helicase domain of DEAD-like helicase restriction enzyme family proteins; This family ...
12-163
4.96e-15
DEXH-box helicase domain of DEAD-like helicase restriction enzyme family proteins; This family is composed of helicase restriction enzymes and similar proteins such as TFIIH basal transcription factor complex helicase XPB subunit. These proteins are part of the DEAD-like helicase superfamily, a diverse family of proteins involved in ATP-dependent RNA or DNA unwinding. This domain contains the ATP-binding region.
Pssm-ID: 350684 [Multi-domain] Cd Length: 146 Bit Score: 72.34 E-value: 4.96e-15
DEXH-box helicase domain of DEAD-like helicase restriction enzyme family proteins; This family ...
12-163
4.96e-15
DEXH-box helicase domain of DEAD-like helicase restriction enzyme family proteins; This family is composed of helicase restriction enzymes and similar proteins such as TFIIH basal transcription factor complex helicase XPB subunit. These proteins are part of the DEAD-like helicase superfamily, a diverse family of proteins involved in ATP-dependent RNA or DNA unwinding. This domain contains the ATP-binding region.
Pssm-ID: 350684 [Multi-domain] Cd Length: 146 Bit Score: 72.34 E-value: 4.96e-15
DEXH-box helicase domain of RapA; In bacteria, RapA is an RNA polymerase (RNAP)-associated ...
12-165
8.20e-11
DEXH-box helicase domain of RapA; In bacteria, RapA is an RNA polymerase (RNAP)-associated SWI2/SNF2 (switch/sucrose non-fermentable) protein that mediates RNAP recycling during transcription. The ATPase activity of RapA is stimulated by its interaction with RNAP and inhibited by its N-terminal domain. The conformational changes of RapA and its interaction with RNAP are essential for RNAP recycling. RapA is part of the DEAD-like helicase superfamily, a diverse family of proteins involved in ATP-dependent RNA or DNA unwinding. This domain contains the ATP-binding region.
Pssm-ID: 350769 [Multi-domain] Cd Length: 207 Bit Score: 61.54 E-value: 8.20e-11
DEXH-box helicase domain of type III restriction enzyme res subunit; Members of this model ...
12-171
1.66e-10
DEXH-box helicase domain of type III restriction enzyme res subunit; Members of this model includes both type I and type III restriction enzymes. Both are hetero-oligomeric proteins. Type I REs are encoded by three closely linked genes: a specificity subunit (HsdS or S) for recognizing a DNA sequence, a methylation subunit (HsdM or M) for methylating the recognized target bases, and a restriction subunit (HsdR or R) for the translocation and random cleavage of non-methylated DNA. They show diverse catalytic activities, including methyltransferase (MTase), ATP hydrolase (ATPase), DNA translocation and restriction activities. These enzymes cut at a site that differs, and is a random distance (at least 1000 bp) away, from their recognition site. Cleavage at these random sites follows a process of DNA translocation, which shows that these enzymes are also molecular motors. The recognition site is asymmetrical and is composed of two specific portions: one containing 3-4 nucleotides, and another containing 4-5 nucleotides, separated by a non-specific spacer of about 6-8 nucleotides. Type III enzymes are composed of two subunits, Res and Mod. The Mod subunit recognizes the DNA sequence specific for the system and is a modification methyltransferase; as such, it is functionally equivalent to the M and S subunits of type I restriction endonucleases. Res is required for restriction, although it has no enzymatic activity on its own. Type III enzymes recognize short 5-6 bp-long asymmetric DNA sequences and cleave 25-27 bp downstream to leave short, single-stranded 5' protrusions. They require the presence of two inversely oriented unmethylated recognition sites for restriction to occur. These enzymes methylate only one strand of the DNA, at the N-6 position of adenosyl residues, so newly replicated DNA will have only one strand methylated, which is sufficient to protect against restriction. Both type I and type III REs are members of the DEAD-like helicase superfamily, a diverse family of proteins involved in ATP-dependent RNA or DNA unwinding. This domain contains the ATP-binding region.
Pssm-ID: 350790 [Multi-domain] Cd Length: 163 Bit Score: 59.88 E-value: 1.66e-10
N-terminal DEAD/H-box helicase domain of superfamily 2 helicases; The DEAD/H-like superfamily ...
30-162
1.82e-09
N-terminal DEAD/H-box helicase domain of superfamily 2 helicases; The DEAD/H-like superfamily 2 helicases comprise a diverse family of proteins involved in ATP-dependent RNA or DNA unwinding. This N-terminal domain contains the ATP-binding region.
Pssm-ID: 350668 [Multi-domain] Cd Length: 146 Bit Score: 56.26 E-value: 1.82e-09
DEXH-box helicase domain of endoribonuclease Dicer; Dicer ribonucleases cleave double-stranded RNA (dsRNA) precursors to generate microRNAs (miRNAs) and small interfering RNAs (siRNAs). In concert with Argonautes, these small RNAs bind complementary mRNAs to down-regulate their expression. miRNAs are processed by Dicer from small hairpins, while siRNAs are typically processed from longer dsRNA, from endogenous sources, or exogenous sources such as viral replication intermediates. Some organisms, such as Homo sapiens and Caenorhabditis elegans, encode one Dicer that generates miRNAs and siRNAs, but other organisms have multiple dicers with specialized functions. Dicers exist throughout eukaryotes, and a subset have an N-terminal helicase domain of the RIG-I-like receptor (RLR) subgroup. RLRs often function in innate immunity and Dicer helicase domains sometimes show differences in activity that correlate with roles in immunity. Dicer is a member of the DEAD-like helicase superfamily, a diverse family of proteins involved in ATP-dependent RNA or DNA unwinding. This domain contains the ATP-binding region.
Pssm-ID: 350792 [Multi-domain] Cd Length: 200 Bit Score: 48.03 E-value: 2.98e-06
DEAD/DEAH box helicase; Members of this family include the DEAD and DEAH box helicases. ...
16-166
3.32e-06
DEAD/DEAH box helicase; Members of this family include the DEAD and DEAH box helicases. Helicases are involved in unwinding nucleic acids. The DEAD box helicases are involved in various aspects of RNA metabolism, including nuclear transcription, pre mRNA splicing, ribosome biogenesis, nucleocytoplasmic transport, translation, RNA decay and organellar gene expression.
Pssm-ID: 425570 [Multi-domain] Cd Length: 165 Bit Score: 47.24 E-value: 3.32e-06
DEXH/Q-box helicase domain of DEAD-like helicase Snf family proteins; Sucrose Non-Fermenting ...
12-163
3.12e-04
DEXH/Q-box helicase domain of DEAD-like helicase Snf family proteins; Sucrose Non-Fermenting (SNF) proteins DEAD-like helicases superfamily. A diverse family of proteins involved in ATP-dependent RNA or DNA unwinding. This domain contains the ATP-binding region.
Pssm-ID: 350677 [Multi-domain] Cd Length: 182 Bit Score: 41.78 E-value: 3.12e-04
DEXH-box helicase domain of DEAD-like helicase Ski2 family proteins; Ski2-like RNA helicases ...
15-138
3.65e-04
DEXH-box helicase domain of DEAD-like helicase Ski2 family proteins; Ski2-like RNA helicases play an important role in RNA degradation, processing, and splicing pathways. They belong to the type II DEAD box helicase superfamily, a diverse family of proteins involved in ATP-dependent RNA or DNA unwinding. This domain contains the ATP-binding region.
Pssm-ID: 350679 [Multi-domain] Cd Length: 181 Bit Score: 41.48 E-value: 3.65e-04
DEXH-box helicase domain of DEAD-like helicase RIG-I family proteins; Members of the RIG-I ...
11-136
8.00e-03
DEXH-box helicase domain of DEAD-like helicase RIG-I family proteins; Members of the RIG-I family include FANCM, dicer, Hef, and the RIG-I-like receptors. Fanconi anemia group M (FANCM) protein is a DNA-dependent ATPase component of the Fanconi anemia (FA) core complex required for the normal activation of the FA pathway, leading to monoubiquitination of the FANCI-FANCD2 complex in response to DNA damage, cellular resistance to DNA cross-linking drugs, and prevention of chromosomal breakage. Dicer ribonucleases cleave double-stranded RNA (dsRNA) precursors to generate microRNAs (miRNAs) and small interfering RNAs (siRNAs). Hef (helicase-associated endonuclease fork-structure) is involved in stalled replication fork repair. RIG-I-like receptors (RLRs) sense cytoplasmic viral RNA and comprises RIG-I, RLR-2/MDA5 (melanoma differentiation-associated protein 5) and RLR-3/LGP2 (laboratory of genetics and physiology 2). The RIG-I family is part of the DEAD-like helicase superfamily, a diverse family of proteins involved in ATP-dependent RNA or DNA unwinding. This domain contains the ATP-binding region.
Pssm-ID: 350685 [Multi-domain] Cd Length: 201 Bit Score: 37.80 E-value: 8.00e-03
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
