Structure of PDB 8sqk Chain A Binding Site BS04

Receptor Information

>8sqk Chain A (length=929) Species: 2697049 (Severe acute respiratory syndrome coronavirus 2)

SADAQSFLNRVCGVSAARLTPCGTGTSTDVVYRAFDIYNDKVAGFAKFLK
TNCCRFQEKDEDDNLIDSYFVVKRHTFSNYQHEETIYNLLKDCPAVAKHD
FFKFRIDGDMVPHISRQRLTKYTMADLVYALRHFDEGNCDTLKEILVTYN
CCDDDYFNKKDWYDFVENPDILRVYANLGERVRQALLKTVQFCDAMRNAG
IVGVLTLDNQDLNGNWYDFGDFIQTTPGSGVPVVDSYYSLLMPILTLTRA
LTAESHVDTDLTKPYIKWDLLKYDFTEERLKLFDRYFKYWDQTYHPNCVN
CLDDRCILHCANFNVLFSTVFPPTSFGPLVRKIFVDGVPFVVSTGYHFRE
LGVVHNQDVNLHSSRLSFKELLVYAADPAMHAASGNLLLDKRTTCFSVAA
LTNNVAFQTVKPGNFNKDFYDFAVSKGFFKEGSSVELKHFFFAQDGNAAI
SDYDYYRYNLPTMCDIRQLLFVVEVVDKYFDCYDGGCINANQVIVNNLDK
SAGFPFNKWGKARLYYDSMSYEDQDALFAYTKRNVIPTITQMNLKYAISA
KNRARTVAGVSICSTMTNRQFHQKLLKSIAATRGATVVIGTSKFYGGWHN
MLKTVYSDVENPHLMGWDYPKCDRAMPNMLRIMASLVLARKHTTCCSLSH
RFYRLANECAQVLSEMVMCGGSLYVKPGGTSSGDATTAYANSVFNICQAV
TANVNALLSTDGNKIADKYVRNLQHRLYECLYRNRDVDTDFVNEFYAYLR
KHFSMMILSDDAVVCFNSTYASQGLVASIKNFKSVLYYQNNVFMSEAKCW
TETDLTKGPHEFCSQHTMLVKQGDDYVYLPYPDPSRILGAGCFVDDIVKT
DGTLMIERFVSLAIDAYPLTKHPNQEYADVFHLYLQYIRKLHDELTGHML
DMYSVMLTNDNTSRYWEPEFYEAMYTPHT

Ligand information

• Ligand ID: VSN
• InChI: InChI=1S/C10H15N5O10P2S/c11-10-13-7-4(8(18)14-10)12-2-15(7)9-6(17)5(16)3(24-9)1-23-26(19,20)25-27(21,22)28/h2-3,5-6,9,16-17H,1H2,(H,19,20)(H2,21,22,28)(H3,11,13,14,18)/t3-,5-,6-,9-/m1/s1
• InChIKey: QJXJXBXFIOTYHB-UUOKFMHZSA-N
• SMILES:
  CACTVS 3.385: NC1=Nc2n(cnc2C(=O)N1)[C@@H]3O[C@H](CO[P](O)(=O)O[P](O)(O)=S)[C@@H](O)[C@H]3O
  OpenEye OEToolkits 2.0.7: c1nc2c(n1[C@H]3[C@@H]([C@@H]([C@H](O3)COP(=O)(O)OP(=S)(O)O)O)O)N=C(NC2=O)N
  ACDLabs 12.01: OP(O)(=S)OP(=O)(O)OCC1OC(n2cnc3c2N=C(N)NC3=O)C(O)C1O
  OpenEye OEToolkits 2.0.7: c1nc2c(n1C3C(C(C(O3)COP(=O)(O)OP(=S)(O)O)O)O)N=C(NC2=O)N
  CACTVS 3.385: NC1=Nc2n(cnc2C(=O)N1)[CH]3O[CH](CO[P](O)(=O)O[P](O)(O)=S)[CH](O)[CH]3O
• Formula: C10 H15 N5 O10 P2 S
• Name: 5'-O-[(R)-hydroxy(thiophosphonooxy)phosphoryl]guanosine
• PDB chain: 8sqk Chain A Residue 1001

Receptor-Ligand Complex Structure

Structure summary

• PDB: 8sqk Structural and functional insights into the enzymatic plasticity of the SARS-CoV-2 NiRAN domain.
• Resolution: 3.01 Å
• Binding residue (original residue number in PDB): S682 D760
• Binding residue (residue number reindexed from 1): S682 D760
• Annotation score: 3

Enzymatic activity

• Enzyme Commision number: 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:0003723 RNA binding
• GO:0003968 RNA-dependent RNA polymerase activity
• GO:0005524 ATP binding

Biological Process

• GO:0006351 DNA-templated transcription
• GO:0039694 viral RNA genome replication

External links

• PDB: RCSB:8sqk, PDBe:8sqk, PDBj:8sqk
• PDBsum: 8sqk
• PubMed: 37890482
• UniProt: P0DTD1|R1AB_SARS2 Replicase polyprotein 1ab (Gene Name=rep)