| IED ID | IndEnz0002000948 |
| Enzyme Type ID | protease000948 |
| Protein Name |
Genome polyprotein Cleaved into: Protein p18; Protein p32; NTPase EC 3.6.1.15 p39 ; Protein p30; Viral genome-linked protein VPg p13 ; Protease-polymerase Pro-Pol EC 2.7.7.48 EC 3.4.22.66 |
| Gene Name | ORF1 |
| Organism | Canine calicivirus (strain 48) (CaCV) |
| Taxonomic Lineage | Viruses Riboviria Orthornavirae Pisuviricota Pisoniviricetes Picornavirales Caliciviridae Vesivirus unclassified Vesivirus Canine vesivirus Canine calicivirus (strain 48) (CaCV) |
| Enzyme Sequence | MASAIALSSSTAQNKITLKSVASRLQQTDDPDIRVWSQSVGFHLQFSNWKCANAFCRFVTDAYNLTPYKECARSITRQLTSLSNYLSAQTGVSVSGTQFLLSPSDVEVPVAKTGESVSDIMVPSYSVNGTSMEFDSMAQLAQALTTGFTFSVNDAQIGNAPAQTGESVSGTGFIAEACPSCALYDKCPNCTSELINDDGSSQSPGDIPHWTHHKIASGIVNILSSDMSSMEDDDFANIAAHVKKALGTNSHPANNDMSKDQLNWLLNIAEASLIRKADRTALPMNAARIAARRGWREKLFNEPADKLYTLLRKSKDSFQKSAIWGILFEKASNAKHYTEIVFQDIVKLIKEECNPSNNFYFKVMAQSFLDHFRMLVIDNPDPVANLPKFILKLKPLNLKMIIENHENTAEGWIVTLTAVAELYGWLEFAVDLVPKIVSELYDLLTSATQKCFSMVRELLTNLNILKAESFDFTNPFWYALAALLSYFVTGFLPNNAKCSAIKQTLNGATTLVAGITAIQKLAAMFSAWSNESVVDDLSTKVIGLTEADNPTVTQDIDAVTNLQIMAEQLKDQIKLKTLDPTFQPYLPVLRNLMSTTDSVISHCAKRKALATQRTAPVCIILTGPAGCGKTTLAYAIANRLSAQKPSVLNLNIDHHDAYTGNEVCIIDEFDSNPDSKFVEFVVEMVNTNPMLLNCDLIENKGKTFSSKYVIMTSNNETPVKPNSTRAPPFYRRVRIIDVTNPGVMSFKYENPGQEVPSYLFSNDFNHLSMSMRGFGAFSKTRVIDPEGRKTCGLEGPPGQRVDVDDIVRYMQRMYRENQMNFKSEAGNNRLKTPRFAFVTQRKHVDTVYKILAAAKTTYNGYYSLTKDSFDVNEGHNIGSSVFVVGDDKEIPHNCKIFRCNHLAMFRHPELAHIEGDNFRAALGVTMSDQDVTLMFYHIRGKHIQDEVRLDELPANHHIVTVHSVYDMAWALNRHLSLTGKWQALKAVYDLYMTPDILPAALRHWMDNTKFSSDHVVTQFIVPGGTIILETCNGARMWATSRRLIRAGGISNNNGPEGGFRFGSIAPRDIPWSEILREFLNLISLIWSRVKGATIVLTALLLYMKRYKPRSEAKGKTKGGRGAIRHGGKGIVLSDDEYDEWREFNMEKRMDMSVDEFLMLKHRAALGSDDTGAIQFRSWWTARQMRESTGLDHDDVTVIGKGGVRHEVHRTEIMKAPKQKKKSFAWGEDMYAEGDGKIVNHVNAIVPVTGLCGEHIGYAVHIGHGKCISLKHVLKTGSYVFNQKPIDVTFDGELAHFQIQQPPSSAAPVTFSSKPTRDPWGRSVSTEWKHDTYNTTAGKMYGSICWTATRTQPGDCGLPYVDRAGQVVGLHAGSGGDSAPGRKIVIPVTKFKLPSNTVLSNRFWKEEAPTISYKGLTVQETGVNKAVLKGTNYHVSPAHVDDYQDCTHQPANLGAQDERYPVSLTSIVINNLEPYKQPTQGPPTEVLNKAYNMLVQHYEPLIPKATTHLEMGDAFAALNVKTSCGPYITGRKKDHIDPETGKWDETLRNHINARWSLATQGVPIPHEYQLGLKDELRPKDKIAVGKRRLIWGCDVGVAVVAASAFKEVSSAIMAMSEFDFIQVGINMDGTAVETLYKRLYTPGTHRYCVDYSKWDSTQPPNVTRMSLELLRHFTDKSPVVDSAVATLSSPSIAVFGGVSFKTNGGLPSGMPLTSILNSLNHCLLVGSAIIQVLESKGVDVNWNIYDTIDLFTYGDDGVYIVPNFVHSVMPEVFSCLSSYGLKPTRTDKSSAPITEIPLSEPIEFLKRQFVRNQFGVRALLDRSSLIRQFYYIKGKNTMEWTKPPEQIDLTSRTAQLQVVMLYASQHGREFYKKCLDYYQLAMEYEGIKLDAPTYDEALAKYNANFNGVEDCDLLPAGYDEHRLDKIVFEN |
| Enzyme Length | 1929 |
| Uniprot Accession Number | Q8V736 |
| Absorption | |
| Active Site | ACT_SITE 1271; /note=For 3CLpro activity; /evidence=ECO:0000255|PROSITE-ProRule:PRU01242; ACT_SITE 1292; /note=For 3CLpro activity; /evidence=ECO:0000255|PROSITE-ProRule:PRU01242; ACT_SITE 1355; /note=For 3CLpro activity; /evidence=ECO:0000255|PROSITE-ProRule:PRU01242 |
| Activity Regulation | |
| Binding Site | |
| Calcium Binding | |
| catalytic Activity | CATALYTIC ACTIVITY: Reaction=a ribonucleoside 5'-triphosphate + H2O = a ribonucleoside 5'-diphosphate + H(+) + phosphate; Xref=Rhea:RHEA:23680, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378, ChEBI:CHEBI:43474, ChEBI:CHEBI:57930, ChEBI:CHEBI:61557; EC=3.6.1.15; CATALYTIC ACTIVITY: Reaction=a ribonucleoside 5'-triphosphate + RNA(n) = diphosphate + RNA(n+1); Xref=Rhea:RHEA:21248, Rhea:RHEA-COMP:14527, Rhea:RHEA-COMP:17342, ChEBI:CHEBI:33019, ChEBI:CHEBI:61557, ChEBI:CHEBI:140395; EC=2.7.7.48; Evidence={ECO:0000255|PROSITE-ProRule:PRU00539}; CATALYTIC ACTIVITY: Reaction=Endopeptidase with a preference for cleavage when the P1 position is occupied by Glu-|-Xaa and the P1' position is occupied by Gly-|-Yaa.; EC=3.4.22.66; Evidence={ECO:0000255|PROSITE-ProRule:PRU01242}; |
| DNA Binding | |
| EC Number | 3.6.1.15; 2.7.7.48; 3.4.22.66 |
| Enzyme Function | FUNCTION: NTPase presumably plays a role in replication. Despite having similarities with helicases, does not seem to display any helicase activity (By similarity). {ECO:0000250}.; FUNCTION: Viral genome-linked protein is covalently linked to the 5'-end of the positive-strand, negative-strand genomic RNAs and subgenomic RNA. Acts as a genome-linked replication primer. May recruit ribosome to viral RNA thereby promoting viral proteins translation (By similarity). {ECO:0000250}.; FUNCTION: Protease-polymerase processes the polyprotein: Pro-Pol is first released by autocleavage, then all other proteins are cleaved. Cleaves host translation initiation factor eIF4G1 and eIF4G2 thereby inducing a shutdown of host protein synthesis. This shutdown may not prevent viral mRNA from being translated since viral Vpg replaces the cap. May cleave host polyadenylate-binding protein thereby inhibiting cellular translation. It is also an RNA-directed RNA polymerase which replicates genomic and antigenomic viral RNA by recognizing specific signals. Transcribes also a subgenomic mRNA by initiating RNA synthesis internally on antigenomic RNA. This sgRNA codes for structural proteins. Catalyzes the covalent attachment VPg with viral RNAs (By similarity). {ECO:0000250}. |
| Temperature Dependency | |
| PH Dependency | |
| Pathway | |
| nucleotide Binding | NP_BIND 623..630; /note=ATP; /evidence=ECO:0000255|PROSITE-ProRule:PRU00551 |
| Features | Active site (3); Chain (7); Domain (3); Modified residue (1); Nucleotide binding (1); Site (5) |
| Keywords | ATP-binding;Covalent protein-RNA linkage;Host-virus interaction;Hydrolase;Nucleotide-binding;Nucleotidyltransferase;Phosphoprotein;Protease;RNA-directed RNA polymerase;Thiol protease;Transferase;Viral RNA replication |
| Interact With | |
| Induction | |
| Subcellular Location | |
| Modified Residue | MOD_RES 1137; /note=O-(5'-phospho-RNA)-tyrosine; /evidence=ECO:0000250 |
| Post Translational Modification | PTM: Specific enzymatic cleavages in vivo yield mature proteins. Pro-Pol is first autocatalytically cleaved, then processes the whole polyprotein (By similarity). {ECO:0000250}.; PTM: VPg is uridylylated by the polymerase and is covalently attached to the 5'-end of the polyadenylated genomic and subgenomic RNAs. This uridylylated form acts as a nucleotide-peptide primer for the polymerase (By similarity). {ECO:0000250}. |
| Signal Peptide | |
| Structure 3D | |
| Cross Reference PDB | - |
| Mapped Pubmed ID | - |
| Motif | |
| Gene Encoded By | |
| Mass | 214,806 |
| Kinetics | |
| Metal Binding | |
| Rhea ID | RHEA:23680; RHEA:21248 |
| Cross Reference Brenda |