5CQE

2.1 Angstrom resolution crystal structure of matrix protein 1 (M1; residues 1-164) from Influenza A virus (A/Puerto Rico/8/34(H1N1))

• PDB DOI: https://doi.org/10.2210/pdb5CQE/pdb

• Classification: VIRAL PROTEIN
• Organism(s): Influenza A virus (A/Puerto Rico/8/1934(H1N1))
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2015-07-21 Released: 2015-08-05 
• Deposition Author(s): Halavaty, A.S., Minasov, G., Flores, K., Dubrovska, I., Grimshaw, S., Shuvalova, L., Anderson, W.F., Center for Structural Genomics of Infectious Diseases (CSGID)

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.10 Å
• R-Value Free: 0.197 
• R-Value Work: 0.175 
• R-Value Observed: 0.176 

Literature

2.1 Angstrom resolution crystal structure of matrix protein 1 (M1; residues 1-164) from Influenza A virus (A/Puerto Rico/8/34(H1N1))

Halavaty, A.S., Minasov, G., Flores, K., Dubrovska, I., Grimshaw, S., Shuvalova, L., Anderson, W.F., Center for Structural Genomics of Infectious Diseases (CSGID)

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 42.3 kDa 
• Atom Count: 2,636 
• Modelled Residue Count: 319 
• Deposited Residue Count: 376 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Matrix protein 1	A, B	188	Influenza A virus (A/Puerto Rico/8/1934(H1N1))	Mutation(s): 0
UniProt
Find proteins for P03485 (Influenza A virus (strain A/Puerto Rico/8/1934 H1N1)) Explore P03485  Go to UniProtKB:  P03485

Small Molecules

Ligands 4 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
TRS	E [auth A]	2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL C4 H12 N O3 LENZDBCJOHFCAS-UHFFFAOYSA-O
PEG	H [auth B]	DI(HYDROXYETHYL)ETHER C4 H10 O3 MTHSVFCYNBDYFN-UHFFFAOYSA-N
EDO	F [auth A]	1,2-ETHANEDIOL C2 H6 O2 LYCAIKOWRPUZTN-UHFFFAOYSA-N
CL	C [auth A], D [auth A], G [auth B]	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.10 Å
• R-Value Free: 0.197 
• R-Value Work: 0.175 
• R-Value Observed: 0.176 
• Space Group: P 2₁ 2₁ 2
• Diffraction Data: https://doi.org/10.18430/m35cqe

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 78.367	α = 90
b = 117.896	β = 90
c = 40.256	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
BLU-MAX	data collection
PHASER	phasing
HKL-2000	data reduction
Coot	model building
ARP	model building
HKL-2000	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2015-08-05 
Deposition Author(s): Halavaty, A.S., Minasov, G., Flores, K., Dubrovska, I., Grimshaw, S., Shuvalova, L., Anderson, W.F., Center for Structural Genomics of Infectious Diseases (CSGID)

Revision History  

• Version 1.0: 2015-08-05
  Type: Initial release
  
• Version 1.1: 2023-09-27
  Changes: Data collection, Database references, Derived calculations, Refinement description