Viral methyltransferase; This RNA methyltransferase domain is found in a wide range of ssRNA ...
561-813
3.32e-23
Viral methyltransferase; This RNA methyltransferase domain is found in a wide range of ssRNA viruses, including Hordei-, Tobra-, Tobamo-, Bromo-, Clostero- and Caliciviruses. This methyltransferase is involved in mRNA capping. Capping of mRNA enhances its stability. This usually occurs in the nucleus. Therefore, many viruses that replicate in the cytoplasm encode their own. This is a specific guanine-7-methyltransferase domain involved in viral mRNA cap0 synthesis. Specificity for guanine 7 position is shown by NMR in and in vivo role in cap synthesis. Based on secondary structure prediction, the basic fold is believed to be similar to the common AdoMet-dependent methyltransferase fold. A curious feature of this methyltransferase domain is that it together with flanking sequences seems to have guanylyltransferase activity coupled to the methyltransferase activity. The domain is found throughout the so-called Alphavirus superfamily, (including alphaviruses and several other groups). It forms the defining, unique feature of this superfamily.
The actual alignment was detected with superfamily member pfam01660:
Pssm-ID: 480762 Cd Length: 308 Bit Score: 102.38 E-value: 3.32e-23
Viral (Superfamily 1) RNA helicase; Helicase activity for this family has been demonstrated ...
1690-1953
2.09e-20
Viral (Superfamily 1) RNA helicase; Helicase activity for this family has been demonstrated and NTPase activity. This helicase has multiple roles at different stages of viral RNA replication, as dissected by mutational analysis.
The actual alignment was detected with superfamily member pfam01443:
Pssm-ID: 366646 [Multi-domain] Cd Length: 227 Bit Score: 92.06 E-value: 2.09e-20
Viral methyltransferase; This RNA methyltransferase domain is found in a wide range of ssRNA ...
561-813
3.32e-23
Viral methyltransferase; This RNA methyltransferase domain is found in a wide range of ssRNA viruses, including Hordei-, Tobra-, Tobamo-, Bromo-, Clostero- and Caliciviruses. This methyltransferase is involved in mRNA capping. Capping of mRNA enhances its stability. This usually occurs in the nucleus. Therefore, many viruses that replicate in the cytoplasm encode their own. This is a specific guanine-7-methyltransferase domain involved in viral mRNA cap0 synthesis. Specificity for guanine 7 position is shown by NMR in and in vivo role in cap synthesis. Based on secondary structure prediction, the basic fold is believed to be similar to the common AdoMet-dependent methyltransferase fold. A curious feature of this methyltransferase domain is that it together with flanking sequences seems to have guanylyltransferase activity coupled to the methyltransferase activity. The domain is found throughout the so-called Alphavirus superfamily, (including alphaviruses and several other groups). It forms the defining, unique feature of this superfamily.
Pssm-ID: 396298 Cd Length: 308 Bit Score: 102.38 E-value: 3.32e-23
Viral (Superfamily 1) RNA helicase; Helicase activity for this family has been demonstrated ...
1690-1953
2.09e-20
Viral (Superfamily 1) RNA helicase; Helicase activity for this family has been demonstrated and NTPase activity. This helicase has multiple roles at different stages of viral RNA replication, as dissected by mutational analysis.
Pssm-ID: 366646 [Multi-domain] Cd Length: 227 Bit Score: 92.06 E-value: 2.09e-20
DEXQD-box helicase domain of UvrD; UvrD is a highly conserved helicase involved in mismatch ...
1690-1758
4.73e-03
DEXQD-box helicase domain of UvrD; UvrD is a highly conserved helicase involved in mismatch repair, nucleotide excision repair, and recombinational repair. It plays a critical role in maintaining genomic stability and facilitating DNA lesion repair in many prokaryotic species including Helicobacter pylori and Escherichia coli. UvrD 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: 350690 [Multi-domain] Cd Length: 189 Bit Score: 40.19 E-value: 4.73e-03
Viral methyltransferase; This RNA methyltransferase domain is found in a wide range of ssRNA ...
561-813
3.32e-23
Viral methyltransferase; This RNA methyltransferase domain is found in a wide range of ssRNA viruses, including Hordei-, Tobra-, Tobamo-, Bromo-, Clostero- and Caliciviruses. This methyltransferase is involved in mRNA capping. Capping of mRNA enhances its stability. This usually occurs in the nucleus. Therefore, many viruses that replicate in the cytoplasm encode their own. This is a specific guanine-7-methyltransferase domain involved in viral mRNA cap0 synthesis. Specificity for guanine 7 position is shown by NMR in and in vivo role in cap synthesis. Based on secondary structure prediction, the basic fold is believed to be similar to the common AdoMet-dependent methyltransferase fold. A curious feature of this methyltransferase domain is that it together with flanking sequences seems to have guanylyltransferase activity coupled to the methyltransferase activity. The domain is found throughout the so-called Alphavirus superfamily, (including alphaviruses and several other groups). It forms the defining, unique feature of this superfamily.
Pssm-ID: 396298 Cd Length: 308 Bit Score: 102.38 E-value: 3.32e-23
Viral (Superfamily 1) RNA helicase; Helicase activity for this family has been demonstrated ...
1690-1953
2.09e-20
Viral (Superfamily 1) RNA helicase; Helicase activity for this family has been demonstrated and NTPase activity. This helicase has multiple roles at different stages of viral RNA replication, as dissected by mutational analysis.
Pssm-ID: 366646 [Multi-domain] Cd Length: 227 Bit Score: 92.06 E-value: 2.09e-20
DEXQD-box helicase domain of UvrD; UvrD is a highly conserved helicase involved in mismatch ...
1690-1758
4.73e-03
DEXQD-box helicase domain of UvrD; UvrD is a highly conserved helicase involved in mismatch repair, nucleotide excision repair, and recombinational repair. It plays a critical role in maintaining genomic stability and facilitating DNA lesion repair in many prokaryotic species including Helicobacter pylori and Escherichia coli. UvrD 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: 350690 [Multi-domain] Cd Length: 189 Bit Score: 40.19 E-value: 4.73e-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.
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Functional characterization of the conserved domain architecture found on the query.
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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
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if a domain or superfamily has been annotated with functional sites (conserved features),
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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)
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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
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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
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the domain superfamily to which the specific and non-specific hits belong
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Retrieve proteins that contain one or more of the domains present in the query sequence, using the Conserved Domain Architecture Retrieval Tool
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