Entry Database : PDB / ID : 2a5k Structure visualization Downloads & linksTitle Crystal structures of SARS coronavirus main peptidase inhibited by an aza-peptide epoxide in space group P212121 Components3C-like peptidase Details Keywords HYDROLASE / cysteine peptidase / 3C-like / N-finger / chymotrypsin-like fold / long loop / alpha-helical domain / dimer / catalytic dyad / specificity pockets / aza-peptide epoxide / substrate-like inhibitor / C-S covalent bond / epoxide stereochemistryFunction / homology Function and homology informationFunction Domain/homology Component
viral RNA-directed RNA polymerase complex / viral replication complex formation and maintenance / exoribonuclease complex / symbiont-mediated suppression of host TRAF-mediated signal transduction => GO:0039527 / : / : / : / cytoplasmic viral factory / positive regulation of ubiquitin-specific protease activity / symbiont-mediated suppression of host translation ... viral RNA-directed RNA polymerase complex / viral replication complex formation and maintenance / exoribonuclease complex / symbiont-mediated suppression of host TRAF-mediated signal transduction => GO:0039527 / : / : / : / cytoplasmic viral factory / positive regulation of ubiquitin-specific protease activity / symbiont-mediated suppression of host translation / : / : / endopeptidase complex / endoribonuclease complex / mRNA capping enzyme complex / positive stranded viral RNA replication / positive regulation of RNA biosynthetic process / Assembly of the SARS-CoV-1 Replication-Transcription Complex (RTC) / Maturation of replicase proteins / protein K48-linked deubiquitination / Transcription of SARS-CoV-1 sgRNAs / Translation of Replicase and Assembly of the Replication Transcription Complex / Replication of the SARS-CoV-1 genome / K48-linked deubiquitinase activity / protein K63-linked deubiquitination / host cell endoplasmic reticulum / K63-linked deubiquitinase activity / RNA-templated transcription / SARS-CoV-1 modulates host translation machinery / viral transcription / protein autoprocessing / 7-methylguanosine mRNA capping / membrane => GO:0016020 / positive regulation of viral genome replication / DNA helicase activity / Transferases; Transferring one-carbon groups; Methyltransferases / helicase activity / protein processing / SARS-CoV-1 activates/modulates innate immune responses / double-stranded RNA binding / 5'-3' RNA helicase activity / Lyases; Phosphorus-oxygen lyases / ISG15-specific peptidase activity / Hydrolases; Acting on ester bonds; Exoribonucleases producing 5'-phosphomonoesters / host cell endoplasmic reticulum-Golgi intermediate compartment / double membrane vesicle viral factory outer membrane / 3'-5'-RNA exonuclease activity / SARS coronavirus main proteinase / 5'-3' DNA helicase activity / host cell endosome / single-stranded 3'-5' DNA helicase activity / double-stranded DNA helicase activity / symbiont-mediated degradation of host mRNA / forked DNA-dependent helicase activity / mRNA guanylyltransferase / symbiont-mediated suppression of host ISG15-protein conjugation / symbiont-mediated suppression of host toll-like receptor signaling pathway / G-quadruplex RNA binding / four-way junction helicase activity / symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of IRF3 activity / omega peptidase activity / endonuclease activity / mRNA (guanine-N7)-methyltransferase / methyltransferase cap1 / host cell Golgi apparatus / symbiont-mediated suppression of host NF-kappaB cascade / symbiont-mediated perturbation of host ubiquitin-like protein modification / DNA helicase / methyltransferase cap1 activity / ubiquitinyl hydrolase 1 / cysteine-type deubiquitinase activity / mRNA 5'-cap (guanine-N7-)-methyltransferase activity / host cell cytoplasm / Hydrolases; Acting on peptide bonds (peptidases); Cysteine endopeptidases / single-stranded RNA binding / protein dimerization activity / host cell perinuclear region of cytoplasm / regulation of autophagy / viral protein processing / lyase activity / RNA helicase / symbiont-mediated suppression of host type I interferon-mediated signaling pathway / symbiont-mediated suppression of host gene expression / viral translational frameshifting / symbiont-mediated activation of host autophagy / RNA-directed RNA polymerase / cysteine-type endopeptidase activity / viral RNA genome replication / RNA-directed RNA polymerase activity / DNA-templated transcription / ATP hydrolysis activity / proteolysis / zinc ion binding / ATP binding / identical protein binding / membrane Similarity search - Function Non-structural protein 3, SUD-N macrodomain, SARS-CoV / Viral superfamily 1 RNA helicase core domain / main proteinase (3clpro) structure, domain 3 / main proteinase (3clpro) structure, domain 3 / RNA-dependent RNA polymerase, SARS-CoV-like / Nonstructural protein 14, betacoronavirus / NSP15, NendoU domain, coronavirus / Nonstructural protein 15, middle domain, alpha/betacoronavirus / Nonstructural protein 15, N-terminal domain, alpha/beta-coronavirus / NSP14, guanine-N7-methyltransferase domain, coronavirus ... Non-structural protein 3, SUD-N macrodomain, SARS-CoV / Viral superfamily 1 RNA helicase core domain / main proteinase (3clpro) structure, domain 3 / main proteinase (3clpro) structure, domain 3 / RNA-dependent RNA polymerase, SARS-CoV-like / Nonstructural protein 14, betacoronavirus / NSP15, NendoU domain, coronavirus / Nonstructural protein 15, middle domain, alpha/betacoronavirus / Nonstructural protein 15, N-terminal domain, alpha/beta-coronavirus / NSP14, guanine-N7-methyltransferase domain, coronavirus / Coronavirus (CoV) guanine-N7-methyltransferase (N7-MTase) domain profile. / Coronavirus (CoV) Nsp15 N-terminal oligomerization domain profile. / NSP12 RNA-dependent RNA polymerase, coronavirus / : / Coronavirus Nsp12 RNA-dependent RNA polymerase (RdRp) domain profile. / Coronavirus Nsp12 Interface domain profile. / : / : / Coronavirus Nonstructural protein 13, 1B domain / Coronavirus Non-structural protein 13, zinc-binding domain / Coronavirus Nonstructural protein 13, stalk domain / Nidovirus 2-O-methyltransferase / Nidovirus 2'-O-methyltransferase (2'-O-MTase) domain profile. / Non-structural protein NSP15, N-terminal domain superfamily, coronavirus / Non-structural protein NSP15, middle domain superfamily / Coronavirus replicase NSP15, N-terminal oligomerization / Nonstructural protein 15, middle domain, coronavirus / Nonstructural protein 13, 1B domain, coronavirus / Coronavirus replicase NSP15, middle domain / Coronavirus replicase NSP15, N-terminal oligomerisation / Nidovirus 3'-5' exoribonuclease domain / Nidovirus 3'-5' exoribonuclease (ExoN) domain profile. / Non-structural protein NSP16, coronavirus-like / Non-structural protein 14, coronavirus / RNA polymerase, N-terminal, coronavirus / Coronavirus 2'-O-methyltransferase / Coronavirus proofreading exoribonuclease / Coronavirus RNA-dependent RNA polymerase, N-terminal / Nonstructural protein 13, zinc-binding domain, coronavirus-like / Coronaviridae zinc-binding (CV ZBD) domain profile. / Arterivirus Nsp11 N-terminal/Coronavirus NSP15 middle domain / Arterivirus Nsp11 N-terminal/coronavirus NSP15 middle (AV-Nsp11N/CoV-Nsp15M) domain profile. / Nidoviral uridylate-specific endoribonuclease (NendoU) domain profile. / Nidovirus RdRp-associated nucleotidyl transferase (NiRAN) domain / Nidovirus RdRp-associated nucleotidyl transferase (NiRAN) domain profile. / Endoribonuclease EndoU-like / NendoU domain, nidovirus / Coronavirus replicase NSP15, uridylate-specific endoribonuclease / : / DNA2/NAM7 helicase-like, C-terminal / AAA domain / (+) RNA virus helicase core domain / (+)RNA virus helicase core domain profile. / Non-structural protein NSP3, SUD-N (Mac2) domain, betacoronavirus / Sarbecovirus Nsp3c-N domain profile. / Non-structural protein NSP3, N-terminal, betacoronavirus / Polyprotein cleavage domain PL2pro superfamily, betacoronavirus / Non-structural protein NSP3, SUD-N (Mac2) domain superfamily, betacoronavirus / Betacoronavirus SUD-C domain / Betacoronavirus replicase NSP3, N-terminal / NSP1 globular domain superfamily, betacoronavirus / Non-structural protein 2, SARS-CoV-like / Betacoronavirus Nsp3c-M domain profile. / NSP1, globular domain, betacoronavirus / Non-structural protein NSP3, SUD-M domain, betacoronavirus / Non-structural protein NSP3, SUD-M domain superfamily, betacoronavirus / Betacoronavirus replicase NSP1 / Betacoronavirus single-stranded poly(A) binding domain / NSP1, C-terminal domain, betacoronavirus / : / Betacoronavirus (BetaCoV) Nsp1 C-terminal domain profile. / Betacoronavirus Nsp3e group 2-specific marker (G2M) domain profile. / Betacoronavirus Nsp3c-C domain profile. / Betacoronavirus Nsp3e nucleic acid-binding (NAB) domain profile. / DPUP/SUD, C-terminal, betacoronavirus / Non-structural protein NSP3, nucleic acid-binding domain, betacoronavirus / Non-structural protein NSP3A domain-like superfamily / Non-structural protein NSP3, nucleic acid-binding domain superfamily, betacoronavirus / Non-structural protein 6, betacoronavirus / Betacoronavirus nucleic acid-binding (NAB) / Papain-like viral protease, palm and finger domains, coronavirus / Papain-like protease, N-terminal domain superfamily, coronavirus / Coronavirus replicase NSP2, N-terminal / : / Coronavirus replicase NSP2, C-terminal / Coronavirus (CoV) Nsp2 middle domain profile. / NSP1, globular domain, alpha/betacoronavirus / Coronavirus (CoV) Nsp1 globular domain profile. / Coronavirus (CoV) Nsp2 N-terminal domain profile. / Coronavirus (CoV) Nsp2 C-terminal domain profile. / Nonstructural protein 2, N-terminal domain, coronavirus / Non-structural protein 2, C-terminal domain, coronavirus / NSP3, second ubiquitin-like (Ubl) domain, coronavirus / Coronavirus Nsp3a Ubl domain profile. / Coronavirus Nsp3d Ubl domain profile. / NSP3, first ubiquitin-like (Ubl) domain, coronavirus / Peptidase family C16 domain profile. / : / : / Coronavirus replicase NSP7 Similarity search - Domain/homologyBiological species SARS coronavirusMethod X-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution : 2.3 Å DetailsAuthors Lee, T.-W. / Cherney, M.M. / Huitema, C. / Liu, J. / James, K.E. / Powers, J.C. / Eltis, L.D. / James, M.N. CitationJournal : J.Mol.Biol. / Year : 2005Title : Crystal Structures of the Main Peptidase from the SARS Coronavirus Inhibited by a Substrate-like Aza-peptide EpoxideAuthors : Lee, T.-W. / Cherney, M.M. / Huitema, C. / Liu, J. / James, K.E. / Powers, J.C. / Eltis, L.D. / James, M.N. History Deposition Jun 30, 2005 Deposition site : RCSB / Processing site : RCSBRevision 1.0 Oct 25, 2005 Provider : repository / Type : Initial releaseRevision 1.1 Oct 16, 2007 Group : Version format complianceRevision 1.2 Jul 13, 2011 Group : Version format complianceRevision 1.3 Aug 23, 2023 Group : Data collection / Database references ... Data collection / Database references / Derived calculations / Refinement description Category : chem_comp_atom / chem_comp_bond ... chem_comp_atom / chem_comp_bond / database_2 / pdbx_initial_refinement_model / struct_conn / struct_ref_seq_dif / struct_site Item : _database_2.pdbx_DOI / _database_2.pdbx_database_accession ... _database_2.pdbx_DOI / _database_2.pdbx_database_accession / _struct_conn.pdbx_leaving_atom_flag / _struct_conn.ptnr1_auth_comp_id / _struct_conn.ptnr1_auth_seq_id / _struct_conn.ptnr1_label_asym_id / _struct_conn.ptnr1_label_atom_id / _struct_conn.ptnr1_label_comp_id / _struct_conn.ptnr1_label_seq_id / _struct_conn.ptnr2_auth_comp_id / _struct_conn.ptnr2_auth_seq_id / _struct_conn.ptnr2_label_asym_id / _struct_conn.ptnr2_label_atom_id / _struct_conn.ptnr2_label_comp_id / _struct_conn.ptnr2_label_seq_id / _struct_ref_seq_dif.details / _struct_site.pdbx_auth_asym_id / _struct_site.pdbx_auth_comp_id / _struct_site.pdbx_auth_seq_id Revision 1.4 Nov 13, 2024 Group : Structure summary / Category : pdbx_entry_details / pdbx_modification_feature
Show all Show less Remark 600 HETEROGEN BEFORE BINDING TO THE PEPTIDASE, CBM, CBO AND OBN FORM AN EPOXIDE RING IN AZP. UPON ... HETEROGEN BEFORE BINDING TO THE PEPTIDASE, CBM, CBO AND OBN FORM AN EPOXIDE RING IN AZP. UPON BINDING TO THE PEPTIDASE, CYS145 SG NUCLEOPHILLICALLY ATTACKS CBM, RESULTING IN THE OPENING OF THE RING AND THE INVERSION OF THE CONFIGURATIONS OF CBM AND CBO.