6WVN

Crystal Structure of Nsp16-Nsp10 from SARS-CoV-2 in Complex with 7-methyl-GpppA and S-Adenosylmethionine.


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.178 
  • R-Value Work: 0.162 
  • R-Value Observed: 0.163 

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Ligand Structure Quality Assessment 


This is version 1.1 of the entry. See complete history


Literature

High-resolution structures of the SARS-CoV-2 2'- O -methyltransferase reveal strategies for structure-based inhibitor design.

Rosas-Lemus, M.Minasov, G.Shuvalova, L.Inniss, N.L.Kiryukhina, O.Brunzelle, J.Satchell, K.J.F.

(2020) Sci Signal 13

  • DOI: 10.1126/scisignal.abe1202
  • Primary Citation of Related Structures:  
    6W4H, 6W75, 6WJT, 6WKQ, 6WQ3, 6WRZ, 6WVN

  • PubMed Abstract: 
  • There are currently no antiviral therapies specific for SARS-CoV-2, the virus responsible for the global pandemic disease COVID-19. To facilitate structure-based drug design, we conducted an x-ray crystallographic study of the SARS-CoV-2 nsp16-nsp10 2'- O -methyltransferase complex, which methylates Cap-0 viral mRNAs to improve viral protein translation and to avoid host immune detection ...

    There are currently no antiviral therapies specific for SARS-CoV-2, the virus responsible for the global pandemic disease COVID-19. To facilitate structure-based drug design, we conducted an x-ray crystallographic study of the SARS-CoV-2 nsp16-nsp10 2'- O -methyltransferase complex, which methylates Cap-0 viral mRNAs to improve viral protein translation and to avoid host immune detection. We determined the structures for nsp16-nsp10 heterodimers bound to the methyl donor S -adenosylmethionine (SAM), the reaction product S -adenosylhomocysteine (SAH), or the SAH analog sinefungin (SFG). We also solved structures for nsp16-nsp10 in complex with the methylated Cap-0 analog m 7 GpppA and either SAM or SAH. Comparative analyses between these structures and published structures for nsp16 from other betacoronaviruses revealed flexible loops in open and closed conformations at the m 7 GpppA-binding pocket. Bound sulfates in several of the structures suggested the location of the ribonucleic acid backbone phosphates in the ribonucleotide-binding groove. Additional nucleotide-binding sites were found on the face of the protein opposite the active site. These various sites and the conserved dimer interface could be exploited for the development of antiviral inhibitors.


    Organizational Affiliation

    Center for Structural Genomics of Infectious Diseases, Northwestern University, Feinberg School of Medicine, Chicago, IL 60611, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
2'-O-methyltransferaseA301Severe acute respiratory syndrome coronavirus 2Mutation(s): 0 
Gene Names: rep1a-1b
EC: 2.1.1 (PDB Primary Data), 3.4.19.12 (UniProt), 3.4.22 (UniProt), 3.4.22.69 (UniProt), 2.7.7.48 (UniProt), 3.6.4.12 (UniProt), 3.6.4.13 (UniProt), 3.1.13 (UniProt), 3.1 (UniProt)
UniProt
Find proteins for P0DTD1 (Severe acute respiratory syndrome coronavirus 2)
Explore P0DTD1 
Go to UniProtKB:  P0DTD1
Protein Feature View
Expand
  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Non-structural protein 10B142Severe acute respiratory syndrome coronavirus 2Mutation(s): 0 
Gene Names: rep1a-1b
EC: 3.4.19.12 (UniProt), 3.4.22 (UniProt), 3.4.22.69 (UniProt), 2.7.7.48 (UniProt), 3.6.4.12 (UniProt), 3.6.4.13 (UniProt), 3.1.13 (UniProt), 3.1 (UniProt), 2.1.1 (UniProt)
UniProt
Find proteins for P0DTD1 (Severe acute respiratory syndrome coronavirus 2)
Explore P0DTD1 
Go to UniProtKB:  P0DTD1
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 7 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
GTA (Subject of Investigation/LOI)
Query on GTA

Download Ideal Coordinates CCD File 
O [auth A]P1-7-METHYLGUANOSINE-P3-ADENOSINE-5',5'-TRIPHOSPHATE
C21 H30 N10 O17 P3
QQOHNVHGNZYSBP-XPWFQUROSA-O
 Ligand Interaction
MGP (Subject of Investigation/LOI)
Query on MGP

Download Ideal Coordinates CCD File 
P [auth A]7-METHYL-GUANOSINE-5'-TRIPHOSPHATE
C11 H19 N5 O14 P3
DKVRNHPCAOHRSI-KQYNXXCUSA-O
 Ligand Interaction
SAM (Subject of Investigation/LOI)
Query on SAM

Download Ideal Coordinates CCD File 
N [auth A]S-ADENOSYLMETHIONINE
C15 H22 N6 O5 S
MEFKEPWMEQBLKI-FCKMPRQPSA-N
 Ligand Interaction
ADE
Query on ADE

Download Ideal Coordinates CCD File 
Q [auth A], R [auth A]ADENINE
C5 H5 N5
GFFGJBXGBJISGV-UHFFFAOYSA-N
 Ligand Interaction
SO4
Query on SO4

Download Ideal Coordinates CCD File 
FA [auth B] , GA [auth B] , S [auth A] , T [auth A] , U [auth A] , V [auth A] , W [auth A] , X [auth A] , 
FA [auth B], GA [auth B], S [auth A], T [auth A], U [auth A], V [auth A], W [auth A], X [auth A], Y [auth A], Z [auth A]
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
ZN (Subject of Investigation/LOI)
Query on ZN

Download Ideal Coordinates CCD File 
AA [auth B], BA [auth B]ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
CL
Query on CL

Download Ideal Coordinates CCD File 
C [auth A] , CA [auth B] , D [auth A] , DA [auth B] , E [auth A] , EA [auth B] , F [auth A] , G [auth A] , 
C [auth A], CA [auth B], D [auth A], DA [auth B], E [auth A], EA [auth B], F [auth A], G [auth A], H [auth A], I [auth A], J [auth A], K [auth A], L [auth A], M [auth A]
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
 Ligand Interaction
Experimental Data & Validation

Experimental Data

Unit Cell:
Length ( Å )Angle ( ˚ )
a = 169.372α = 90
b = 169.372β = 90
c = 52.083γ = 120
Software Package:
Software NamePurpose
REFMACrefinement
PDB_EXTRACTdata extraction
HKL-3000data reduction
HKL-3000data scaling
PHASERphasing

Structure Validation

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Ligand Structure Quality Assessment  



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2020-05-13
    Type: Initial release
  • Version 1.1: 2021-01-27
    Changes: Database references