Ribonuclease PH; Ribonuclease PH (RNase PH)-like 3'-5' exoribonucleases are enzymes that ...
10-236
2.42e-149
Ribonuclease PH; Ribonuclease PH (RNase PH)-like 3'-5' exoribonucleases are enzymes that catalyze the 3' to 5' processing and decay of RNA substrates. Structurally all members of this family form hexameric rings (trimers of dimers). Bacterial RNase PH forms a homohexameric ring, and removes nucleotide residues following the -CCA terminus of tRNA.
Pssm-ID: 206767 [Multi-domain] Cd Length: 227 Bit Score: 415.47 E-value: 2.42e-149
ribonuclease PH; This bacterial enzyme, ribonuclease PH, performs the final 3'-trimming and ...
2-237
2.07e-146
ribonuclease PH; This bacterial enzyme, ribonuclease PH, performs the final 3'-trimming and modification of tRNA precursors. This model is restricted absolutely to bacteria. Related families outside the model include proteins described as probable exosome complex exonucleases (rRNA processing) and polyribonucleotide nucleotidyltransferases (mRNA degradation). The most divergent member within the family is RNase PH from Deinococcus radiodurans. [Transcription, RNA processing]
Pssm-ID: 131021 Cd Length: 236 Bit Score: 408.67 E-value: 2.07e-146
3' exoribonuclease family, domain 1; This family includes 3'-5' exoribonucleases. Ribonuclease ...
10-138
3.01e-32
3' exoribonuclease family, domain 1; This family includes 3'-5' exoribonucleases. Ribonuclease PH contains a single copy of this domain, and removes nucleotide residues following the -CCA terminus of tRNA. Polyribonucleotide nucleotidyltransferase (PNPase) contains two tandem copies of the domain. PNPase is involved in mRNA degradation in a 3'-5' direction. The exosome is a 3'-5' exoribonuclease complex that is required for 3' processing of the 5.8S rRNA. Three of its five protein components contain a copy of this domain. A hypothetical protein from S. pombe appears to belong to an uncharacterized subfamily. This subfamily is found in both eukaryotes and archaebacteria.
Pssm-ID: 426074 [Multi-domain] Cd Length: 129 Bit Score: 114.61 E-value: 3.01e-32
Ribonuclease PH; Ribonuclease PH (RNase PH)-like 3'-5' exoribonucleases are enzymes that ...
10-236
2.42e-149
Ribonuclease PH; Ribonuclease PH (RNase PH)-like 3'-5' exoribonucleases are enzymes that catalyze the 3' to 5' processing and decay of RNA substrates. Structurally all members of this family form hexameric rings (trimers of dimers). Bacterial RNase PH forms a homohexameric ring, and removes nucleotide residues following the -CCA terminus of tRNA.
Pssm-ID: 206767 [Multi-domain] Cd Length: 227 Bit Score: 415.47 E-value: 2.42e-149
ribonuclease PH; This bacterial enzyme, ribonuclease PH, performs the final 3'-trimming and ...
2-237
2.07e-146
ribonuclease PH; This bacterial enzyme, ribonuclease PH, performs the final 3'-trimming and modification of tRNA precursors. This model is restricted absolutely to bacteria. Related families outside the model include proteins described as probable exosome complex exonucleases (rRNA processing) and polyribonucleotide nucleotidyltransferases (mRNA degradation). The most divergent member within the family is RNase PH from Deinococcus radiodurans. [Transcription, RNA processing]
Pssm-ID: 131021 Cd Length: 236 Bit Score: 408.67 E-value: 2.07e-146
RNase PH-like 3'-5' exoribonucleases; RNase PH-like 3'-5' exoribonucleases are enzymes that ...
11-226
3.32e-36
RNase PH-like 3'-5' exoribonucleases; RNase PH-like 3'-5' exoribonucleases are enzymes that catalyze the 3' to 5' processing and decay of RNA substrates. Evolutionarily related members can be fond in prokaryotes, archaea, and eukaryotes. Bacterial ribonuclease PH contains a single copy of this domain, and removes nucleotide residues following the -CCA terminus of tRNA. Polyribonucleotide nucleotidyltransferase (PNPase) contains two tandem copies of the domain and is involved in mRNA degradation in a 3'-5' direction. Archaeal exosomes contain two individually encoded RNase PH-like 3'-5' exoribonucleases and are required for 3' processing of the 5.8S rRNA. The eukaryotic exosome core is composed of six individually encoded RNase PH-like subunits, but it is not a phosphorolytic enzyme per se; it directly associates with Rrp44 and Rrp6, which are hydrolytic exoribonucleases related to bacterial RNase II/R and RNase D. All members of the RNase PH-like family form ring structures by oligomerization of six domains or subunits, except for a total of 3 subunits with tandem repeats in the case of PNPase, with a central channel through which the RNA substrate must pass to gain access to the phosphorolytic active sites.
Pssm-ID: 206766 [Multi-domain] Cd Length: 218 Bit Score: 127.83 E-value: 3.32e-36
RRP41 subunit of archaeal exosome; The RRP41 subunit of the archaeal exosome is a member of ...
10-236
5.33e-33
RRP41 subunit of archaeal exosome; The RRP41 subunit of the archaeal exosome is a member of the RNase_PH family, named after the bacterial Ribonuclease PH, a 3'-5' exoribonuclease. Structurally all members of this family form hexameric rings (trimers of dimers). In archaea, the ring is formed by three Rrp41:Rrp42 dimers. The central chamber within the ring contains three phosphorolytic active sites located in an Rrp41 pocket at the interface between Rrp42 and Rrp41. The ring is capped by three copies of Rrp4 and/or Csl4 which contain putative RNA interaction domains. The archaeal exosome degrades single-stranded RNA (ssRNA) in the 3'-5' direction, but also can catalyze the reverse reaction of adding nucleoside diphosphates to the 3'-end of RNA which has been shown to lead to the formation of poly-A-rich tails on RNA.
Pssm-ID: 206771 [Multi-domain] Cd Length: 214 Bit Score: 119.36 E-value: 5.33e-33
3' exoribonuclease family, domain 1; This family includes 3'-5' exoribonucleases. Ribonuclease ...
10-138
3.01e-32
3' exoribonuclease family, domain 1; This family includes 3'-5' exoribonucleases. Ribonuclease PH contains a single copy of this domain, and removes nucleotide residues following the -CCA terminus of tRNA. Polyribonucleotide nucleotidyltransferase (PNPase) contains two tandem copies of the domain. PNPase is involved in mRNA degradation in a 3'-5' direction. The exosome is a 3'-5' exoribonuclease complex that is required for 3' processing of the 5.8S rRNA. Three of its five protein components contain a copy of this domain. A hypothetical protein from S. pombe appears to belong to an uncharacterized subfamily. This subfamily is found in both eukaryotes and archaebacteria.
Pssm-ID: 426074 [Multi-domain] Cd Length: 129 Bit Score: 114.61 E-value: 3.01e-32
RRP41 subunit of eukaryotic exosome; The RRP41 subunit of eukaryotic exosome is a member of ...
2-231
3.59e-23
RRP41 subunit of eukaryotic exosome; The RRP41 subunit of eukaryotic exosome is a member of the RNase_PH family, named after the bacterial Ribonuclease PH, a 3'-5' exoribonuclease. Structurally all members of this family form hexameric rings (trimers of Rrp41-Rrp45, Rrp46-Rrp43, and Mtr3-Rrp42 dimers). The eukaryotic exosome core is composed of six individually encoded RNase PH-like subunits and three additional proteins (Rrp4, Csl4 and Rrp40) that form a stable cap and contain RNA-binding domains. The RNase PH-like subunits are no longer phosphorolytic enzymes, the exosome directly associates with Rrp44 and Rrp6, hydrolytic exoribonucleases related to bacterial RNase II/R and RNase D. The exosome plays an important role in RNA turnover. It plays a crucial role in the maturation of stable RNA species such as rRNA, snRNA and snoRNA, quality control of mRNA, and the degradation of RNA processing by-products and non-coding transcripts.
Pssm-ID: 206775 [Multi-domain] Cd Length: 226 Bit Score: 93.76 E-value: 3.59e-23
RRP42 subunit of archaeal exosome; The RRP42 subunit of the archaeal exosome is a member of ...
2-221
3.15e-16
RRP42 subunit of archaeal exosome; The RRP42 subunit of the archaeal exosome is a member of the RNase_PH family, named after the bacterial Ribonuclease PH, a 3'-5' exoribonuclease. Structurally all members of this family form hexameric rings (trimers of dimers). In archaea, the ring is formed by three Rrp41:Rrp42 dimers. The central chamber within the ring contains three phosphorolytic active sites located in an Rrp41 pocket at the interface between Rrp42 and Rrp41. The ring is capped by three copies of Rrp4 and/or Csl4 which contain putative RNA interaction domains. The archaeal exosome degrades single-stranded RNA (ssRNA) in the 3'-5' direction, but also can catalyze the reverse reaction of adding nucleoside diphosphates to the 3'-end of RNA which has been shown to lead to the formation of poly-A-rich tails on RNA. It is required for 3' processing of the 5.8S rRNA.
Pssm-ID: 206770 [Multi-domain] Cd Length: 256 Bit Score: 75.72 E-value: 3.15e-16
3' exoribonuclease family, domain 2; This family includes 3'-5' exoribonucleases. Ribonuclease ...
157-224
6.41e-12
3' exoribonuclease family, domain 2; This family includes 3'-5' exoribonucleases. Ribonuclease PH contains a single copy of this domain, and removes nucleotide residues following the -CCA terminus of tRNA. Polyribonucleotide nucleotidyltransferase (PNPase) contains two tandem copies of the domain. PNPase is involved in mRNA degradation in a 3'-5' direction. The exosome is a 3'-5' exoribonuclease complex that is required for 3' processing of the 5.8S rRNA. Three of its five protein components, Swiss:P46948 Swiss:Q12277 and Swiss:P25359 contain a copy of this domain. Swiss:Q10205, a hypothetical protein from S. pombe appears to belong to an uncharacterized subfamily. This subfamily is found in both eukaryotes and archaebacteria.
Pssm-ID: 427466 [Multi-domain] Cd Length: 67 Bit Score: 59.51 E-value: 6.41e-12
MTR3 subunit of eukaryotic exosome; The MTR3 subunit of eukaryotic exosome is a member of the ...
11-231
1.65e-11
MTR3 subunit of eukaryotic exosome; The MTR3 subunit of eukaryotic exosome is a member of the RNase_PH family, named after the bacterial Ribonuclease PH, a 3'-5' exoribonuclease. Structurally all members of this family form hexameric rings (trimers of Rrp41-Rrp45, Rrp46-Rrp43, and Mtr3-Rrp42 dimers). The eukaryotic exosome core is composed of six individually encoded RNase PH-like subunits and three additional proteins (Rrp4, Csl4 and Rrp40) that form a stable cap and contain RNA-binding domains. The RNase PH-like subunits are no longer phosphorolytic enzymes, the exosome directly associates with Rrp44 and Rrp6, hydrolytic exoribonucleases related to bacterial RNase II/R and RNase D. The exosome plays an important role in RNA turnover. It plays a crucial role in the maturation of stable RNA species such as rRNA, snRNA and snoRNA, quality control of mRNA, and the degradation of RNA processing by-products and non-coding transcripts.
Pssm-ID: 206776 [Multi-domain] Cd Length: 210 Bit Score: 61.81 E-value: 1.65e-11
RRP45 subunit of eukaryotic exosome; The RRP45 subunit of eukaryotic exosome is a member of ...
2-123
2.89e-09
RRP45 subunit of eukaryotic exosome; The RRP45 subunit of eukaryotic exosome is a member of the RNase_PH family, named after the bacterial Ribonuclease PH, a 3'-5' exoribonuclease. Structurally all members of this family form hexameric rings (trimers of Rrp41-Rrp45, Rrp46-Rrp43, and Mtr3-Rrp42 dimers). The eukaryotic exosome core is composed of six individually encoded RNase PH-like subunits and three additional proteins (Rrp4, Csl4 and Rrp40) that form a stable cap and contain RNA-binding domains. The RNase PH-like subunits are no longer phosphorolytic enzymes, the exosome directly associates with Rrp44 and Rrp6, hydrolytic exoribonucleases related to bacterial RNase II/R and RNase D. The exosome plays an important role in RNA turnover. It plays a crucial role in the maturation of stable RNA species such as rRNA, snRNA and snoRNA, quality control of mRNA, and the degradation of RNA processing by-products and non-coding transcripts.
Pssm-ID: 206773 [Multi-domain] Cd Length: 259 Bit Score: 56.00 E-value: 2.89e-09
RRP43 subunit of eukaryotic exosome; The RRP43 subunit of eukaryotic exosome is a member of ...
5-223
1.56e-03
RRP43 subunit of eukaryotic exosome; The RRP43 subunit of eukaryotic exosome is a member of the RNase_PH family, named after the bacterial Ribonuclease PH, a 3'-5' exoribonuclease. Structurally all members of this family form hexameric rings (trimers of Rrp41-Rrp45, Rrp46-Rrp43, and Mtr3-Rrp42 dimers). The eukaryotic exosome core is composed of six individually encoded RNase PH-like subunits and three additional proteins (Rrp4, Csl4 and Rrp40) that form a stable cap and contain RNA-binding domains. The RNase PH-like subunits are no longer phosphorolytic enzymes, the exosome directly associates with Rrp44 and Rrp6, hydrolytic exoribonucleases related to bacterial RNase II/R and RNase D. The exosome plays an important role in RNA turnover. It plays a crucial role in the maturation of stable RNA species such as rRNA, snRNA and snoRNA, quality control of mRNA, and the degradation of RNA processing by-products and non-coding transcripts.
Pssm-ID: 206774 [Multi-domain] Cd Length: 261 Bit Score: 39.08 E-value: 1.56e-03
RRP46 subunit of eukaryotic exosome; The RRP46 subunit of eukaryotic exosome is a member of ...
11-228
3.00e-03
RRP46 subunit of eukaryotic exosome; The RRP46 subunit of eukaryotic exosome is a member of the RNase_PH family, named after the bacterial Ribonuclease PH, a 3'-5' exoribonuclease. Structurally all members of this family form hexameric rings (trimers of Rrp41-Rrp45, Rrp46-Rrp43, and Mtr3-Rrp42 dimers). The eukaryotic exosome core is composed of six individually encoded RNase PH-like subunits and three additional proteins (Rrp4, Csl4 and Rrp40) that form a stable cap and contain RNA-binding domains. The RNase PH-like subunits are no longer phosphorolytic enzymes, the exosome directly associates with Rrp44 and Rrp6, hydrolytic exoribonucleases related to bacterial RNase II/R and RNase D. The exosome plays an important role in RNA turnover. It plays a crucial role in the maturation of stable RNA species such as rRNA, snRNA and snoRNA, quality control of mRNA, and the degradation of RNA processing by-products and non-coding transcripts.
Pssm-ID: 206777 [Multi-domain] Cd Length: 199 Bit Score: 37.54 E-value: 3.00e-03
Polyribonucleotide nucleotidyltransferase, repeat 1; Polyribonucleotide nucleotidyltransferase (PNPase) is a member of the RNase_PH family, named after the bacterial Ribonuclease PH, a 3'-5' exoribonuclease. Structurally, all members of this family form hexameric rings. In the case of PNPase the complex is a trimer, since each monomer contains two tandem copies of the domain. PNPase is involved in mRNA degradation in a 3'-5' direction and in quality control of ribosomal RNA precursors. It is part of the RNA degradosome complex and binds to the scaffolding domain of the endoribonuclease RNase E.
Pssm-ID: 206768 [Multi-domain] Cd Length: 229 Bit Score: 37.88 E-value: 3.36e-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
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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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