7XC8 | pdb_00007xc8

Crystal structure of cotton alpha-like expansin GhEXLA1

• PDB DOI: https://doi.org/10.2210/pdb7XC8/pdb

• Classification: PLANT PROTEIN
• Organism(s): Gossypium hirsutum
• Expression System: Spodoptera frugiperda
• Mutation(s): No 


• Deposited: 2022-03-23 Released: 2023-05-17 
• Deposition Author(s): Zhao, F., Men, S., Xue, Y., Tu, L.L., Yin, P., Zhang, X.L.
• Funding Organization(s): National Natural Science Foundation of China (NSFC)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.55 Å
• R-Value Free: 
  0.239 (Depositor), 0.240 (DCC) 
• R-Value Work: 
  0.191 (Depositor), 0.190 (DCC) 
• R-Value Observed: 
  0.196 (Depositor) 

Literature

Crystal structure of cotton alpha-like expansin GhEXLA1

Zhao, F., Men, S., Xue, Y., Tu, L.L., Yin, P., Zhang, X.L.

To be published.

Biological Assembly 1  

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

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

Biological Assembly Evidence: gel filtration

Macromolecule Content 

• Total Structure Weight: 27.34 kDa 
• Atom Count: 1,818 
• Modeled Residue Count: 229 
• Deposited Residue Count: 249 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Beta-expansin	A	249	Gossypium hirsutum	Mutation(s): 0  Gene Names: LOC107921049, EXPB-L3D
UniProt
Find proteins for A0A1U8L037 (Gossypium hirsutum) Explore A0A1U8L037  Go to UniProtKB:  A0A1U8L037

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
PEG	D [auth A]	DI(HYDROXYETHYL)ETHER C4 H10 O3 MTHSVFCYNBDYFN-UHFFFAOYSA-N
GOL	B [auth A], C [auth A]	GLYCEROL C3 H8 O3 PEDCQBHIVMGVHV-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.55 Å
• R-Value Free:  0.239 (Depositor), 0.240 (DCC) 
• R-Value Work:  0.191 (Depositor), 0.190 (DCC) 
• R-Value Observed: 0.196 (Depositor) 

Space Group: P 6₁ 2 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 151.273	α = 90
b = 151.273	β = 90
c = 61.026	γ = 120

Software Package:

Software Name	Purpose
PHENIX	refinement
XDS	data reduction
Aimless	data scaling
PHASER	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2023-05-17 
Deposition Author(s): Zhao, F., Men, S., Xue, Y., Tu, L.L., Yin, P., Zhang, X.L.

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Funding Organization	Location	Grant Number
National Natural Science Foundation of China (NSFC)	China	31671739

Revision History  

• Version 1.0: 2023-05-17
  Type: Initial release
  
• Version 1.1: 2024-11-13
  Changes: Data collection, Structure summary