Summary: Viral/Archaeal nuclease
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Viral/Archaeal nuclease Provide feedback
This family of proteins is found in archaea and viruses. Proteins in this family are typically between 211 and 244 amino acids in length. These proteins are nucleases from fusseloviruses and sulfolobus archaea.
Steczkiewicz K, Muszewska A, Knizewski L, Rychlewski L, Ginalski K;, Nucleic Acids Res. 2012;40:7016-7045.: Sequence, structure and functional diversity of PD-(D/E)XK phosphodiesterase superfamily. PUBMED:22638584 EPMC:22638584
This tab holds annotation information from the InterPro database.
InterPro entry IPR022012
This family of proteins represented by Sulfolobus spindle-shaped virus (Ragged Hills) ORF D212; the structure of whcih has been reported [PUBMED:20375162]. The structure of D212 clearly reveals a type II restriction endonuclease fold and identifies the hallmark PD-(D/E)XK catalytic motif that is spatially conserved in this nuclease superfamily. This fold and its associated catalytic residues are also found in nucleases, where they play roles in DNA replication, repair, recombination, and other processes requiring nuclease activity. The function of D212 in the phage replication cycle remains unknown, it is speculated to be a Holliday juction resolvase [PUBMED:20375162].
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This clan includes a large number of nuclease families related to holliday junction resolvases [1,2].
The clan contains the following 127 members:ArenaCapSnatch BamHI BpuJI_N BpuSI_N Bse634I BsuBI_PstI_RE Cas_APE2256 Cas_Cas02710 Cas_Cas4 Cas_Csm6 Cas_DxTHG Cas_NE0113 CoiA Csa1 Dna2 DpnI DpnII DUF1016 DUF1780 DUF1887 DUF2034 DUF2161 DUF234 DUF2357 DUF2726 DUF2800 DUF2887 DUF3799 DUF3883 DUF4143 DUF4263 DUF4420 DUF559 EcoRI EcoRII-C eIF-3_zeta Endonuc-BglII Endonuc-BsobI Endonuc-EcoRV Endonuc-FokI_C Endonuc-HincII Endonuc-MspI Endonuc-PvuII Endonuc_BglI Endonuc_Holl ERCC4 Exo5 Flu_PA Herpes_alk_exo Herpes_UL24 Hjc HSDR_N HSDR_N_2 L_protein_N McrBC MepB MmcB-like Mrr_cat Mrr_cat_2 MutH MvaI_BcnI NaeI NERD NgoMIV_restric NotI NucS PDCD9 PDDEXK_1 PDDEXK_10 PDDEXK_2 PDDEXK_3 PDDEXK_4 PDDEXK_5 PDDEXK_7 PDDEXK_9 Pet127 Phage_endo_I R-HINP1I Rad10 RAI1 RAP RE_AlwI RE_ApaLI RE_Bpu10I RE_Bsp6I RE_CfrBI RE_Eco47II RE_EcoO109I RE_HaeII RE_HindIII RE_HindVP RE_HpaII RE_LlaJI RE_LlaMI RE_MjaI RE_NgoBV RE_NgoPII RE_SacI RE_ScaI RE_SinI RE_TaqI RE_TdeIII RE_XamI RE_XcyI RecU RestrictionMunI RestrictionSfiI RmuC RNA_pol_Rpb5_N Sen15 SfsA Spo0A_C TBPIP_N ThaI Tn7_Tnp_TnsA_N Transposase_31 tRNA_int_endo Tsp45I Uma2 UPF0102 VirArc_Nuclease VRR_NUC Vsr XhoI XisH YaeQ YqaJ
We make a range of alignments for each Pfam-A family:
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- Representative Proteomes (RPs) at 15%, 35%, 55% and 75% co-membership thresholds
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Curation and family details
|Author:||Mistry J, Gavin OL|
|Number in seed:||3|
|Number in full:||7|
|Average length of the domain:||151.00 aa|
|Average identity of full alignment:||18 %|
|Average coverage of the sequence by the domain:||65.17 %|
|HMM build commands:||
build method: hmmbuild -o /dev/null HMM SEED
search method: hmmsearch -Z 26740544 -E 1000 --cpu 4 HMM pfamseq
|Family (HMM) version:||7|
|Download:||download the raw HMM for this family|
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For those sequences which have a structure in the Protein DataBank, we use the mapping between UniProt, PDB and Pfam coordinate systems from the PDBe group, to allow us to map Pfam domains onto UniProt sequences and three-dimensional protein structures. The table below shows the structures on which the VirArc_Nuclease domain has been found. There are 2 instances of this domain found in the PDB. Note that there may be multiple copies of the domain in a single PDB structure, since many structures contain multiple copies of the same protein seqence.
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