6MEB

Crystal structure of Tylonycteris bat coronavirus HKU4 macrodomain in complex with nicotinamide adenine dinucleotide (NAD+)

• PDB DOI: https://doi.org/10.2210/pdb6MEB/pdb

• Classification: HYDROLASE
• Organism(s): Tylonycteris bat coronavirus HKU4
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2018-09-06 Released: 2019-09-11 
• Deposition Author(s): Hammond, R.G., Schormann, N., McPherson, R.L., Leung, A.K.L., Deivanayagam, C.C.S., Johnson, M.A.
• Funding Organization(s): National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.80 Å
• R-Value Free: 0.232 
• R-Value Work: 0.190 
• R-Value Observed: 0.192 

Starting Model: experimental

Literature

ADP-Ribose and Analogues bound to the DeMARylating Macrodomain from the Bat Coronavirus HKU4

Hammond, R.G., Schormann, N., McPherson, R.L., Leung, A.K.L., Deivanayagam, C., Johnson, M.A.

(2021) Proc Natl Acad Sci U S A 

• DOI: https://doi.org/10.1073/pnas.2004500118

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: gel filtration

Biological Assembly 2  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 2 assigned by authors.

Macromolecule Content

• Total Structure Weight: 38.52 kDa 
• Atom Count: 2,871 
• Modelled Residue Count: 322 
• Deposited Residue Count: 348 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Replicase polyprotein 1ab	A, B	174	Tylonycteris bat coronavirus HKU4	Mutation(s): 0  Gene Names: rep, 1a-1b
UniProt
Find proteins for P0C6W3 (Bat coronavirus HKU4) Explore P0C6W3  Go to UniProtKB:  P0C6W3

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
NAD	C [auth A], D [auth B]	NICOTINAMIDE-ADENINE-DINUCLEOTIDE C21 H27 N7 O14 P2 BAWFJGJZGIEFAR-NNYOXOHSSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.80 Å
• R-Value Free: 0.232 
• R-Value Work: 0.190 
• R-Value Observed: 0.192 
• Space Group: P 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 33.607	α = 73.42
b = 41.561	β = 88.56
c = 59.912	γ = 88.43

Software Package:

Software Name	Purpose
Aimless	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction
DIALS	data reduction
PHASER	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2019-09-11 
Deposition Author(s): Hammond, R.G., Schormann, N., McPherson, R.L., Leung, A.K.L., Deivanayagam, C.C.S., Johnson, M.A.

---

Funding Organization	Location	Grant Number
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)	United States	R35GM119456

Revision History  

• Version 1.0: 2019-09-11
  Type: Initial release
  
• Version 1.1: 2020-01-01
  Changes: Author supporting evidence
• Version 1.2: 2021-01-13
  Changes: Database references
• Version 1.3: 2023-10-11
  Changes: Data collection, Database references, Refinement description