Structure of PDB 1uk4 Chain B Binding Site BS01

Receptor Information

>1uk4 Chain B (length=302)

SGFRKMAFPSGKVEGCMVQVTCGTTTLNGLWLDDTVYCPRHVICTAEDML
NPNYEDLLIRKSNHSFLVQAGNVQLRVIGHSMQNCLLRLKVDTSNPKTPK
YKFVRIQPGQTFSVLACYNGSPSGVYQCAMRPNHTIKGSFLNGSCGSVGF
NIDYDCVSFCYMHHMELPTGVHAGTDLEGKFYGPFVDRQTAQAAGTDTTI
TLNVLAWLYAAVINGDRWFLNRFTTTLNDFNLVAMKYNYEPLTQDHVDIL
GPLSAQTGIAVLDMCAALKELLQNGMNGRTILGSTILEDEFTPFDVVRQC
SG

Ligand information

>1uk4 Chain H (length=5) Species: 32630 (synthetic construct)

NSTLQ

Receptor-Ligand Complex Structure

Structure summary

• PDB: 1uk4 The crystal structures of severe acute respiratory syndrome virus main protease and its complex with an inhibitor
• Resolution: 2.5 Å
• Binding residue (original residue number in PDB): H41 M49 G143 S144 C145 M165 E166 P168 R188 Q189 T190 Q192
• Binding residue (residue number reindexed from 1): H41 M49 G143 S144 C145 M165 E166 P168 R188 Q189 T190 Q192

Enzymatic activity

• Catalytic site (original residue number in PDB): H41 G143 C145
• Catalytic site (residue number reindexed from 1): H41 G143 C145
• Enzyme Commision number: 2.1.1.-
  2.1.1.56: mRNA (guanine-N(7))-methyltransferase.
  2.1.1.57: methyltransferase cap1.
  2.7.7.48: RNA-directed RNA polymerase.
  2.7.7.50: mRNA guanylyltransferase.
  3.1.13.-
  3.4.19.12: ubiquitinyl hydrolase 1.
  3.4.22.-
  3.4.22.69: SARS coronavirus main proteinase.
  3.6.4.12: DNA helicase.
  3.6.4.13: RNA helicase.
  4.6.1.-

Gene Ontology

Molecular Function

• GO:0008233 peptidase activity

Biological Process

• GO:0019082 viral protein processing

External links

• PDB: RCSB:1uk4, PDBe:1uk4, PDBj:1uk4
• PDBsum: 1uk4
• PubMed: 14585926
• UniProt: P0C6X7|R1AB_SARS Replicase polyprotein 1ab (Gene Name=rep)