Structure of PDB 5sai Chain B

Receptor sequence
>5saiB (length=348) Species: 2697049 (Severe acute respiratory syndrome coronavirus 2) [Search protein sequence]
AMSLENVAFNVVNKGHFDGQQGEVPVSIINNTVYTKVDGVDVELFENKTT
LPVNVAFELWAKRNIKPVPEVKILNNLGVDIAANTVIWDYKRDAPAHIST
IGVCSMTDIAKKPTETICAPLTVFFDGRVDGQVDLFRNARNGVLITEGSV
KGLQPSVGPKQASLNGVTLIGEAVKTQFNYYKKVDGVVQQLPETYFTQSR
NLQEFKPRSQMEIDFLELAMDEFIERYKLEGYAFEHIVYGDFSHSQLGGL
HLLIGLAKRFKESPFELEDFIPMDSTVKNYFITDAQTGSSKCVCSVIDLL
LDDFVEIIKSQDLSVVSKVVKVTIDYTEISFMLWCKDGHVETFYPKLQ
3D structure
PDB5sai Allosteric regulation and crystallographic fragment screening of SARS-CoV-2 NSP15 endoribonuclease.
ChainB
Resolution2.022 Å
3D
structure
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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.-
Interaction with ligand
Site
#		 Ligand Ligand
chain		 Binding residues on receptor
(original residue number in PDB)		 Binding residues on receptor
(residue number reindexed from 1)		 Binding affinity
BS01 ZQM B R135 L151 K181 V186 R137 L153 K183 V188
External links
PDB RCSB:5sai, PDBe:5sai, PDBj:5sai
PDBsum5sai
PubMed37115000
UniProtP0DTD1|R1AB_SARS2 Replicase polyprotein 1ab (Gene Name=rep)

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