5EXG

Crystal structure of recombinant dimeric Banana lectin

• PDB DOI: https://doi.org/10.2210/pdb5EXG/pdb

• Classification: SUGAR BINDING PROTEIN
• Organism(s): Musa acuminata
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2015-11-23 Released: 2016-12-07 
• Deposition Author(s): Struwe, W.B., Allison, T.A., Robinson, C.V., Benesch, J.L.P.B.
• Funding Organization(s): Medical Research Council (United Kingdom), European Research Council, Biotechnology and Biological Sciences Research Council, National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS), National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.70 Å
• R-Value Free: 0.198 
• R-Value Work: 0.168 
• R-Value Observed: 0.169 

Literature

Glycan cluster recognition by a potent anti-HIV lectin exploiting bidentate binding amplified by tetrameric architecture

Hopper, J.T.S., Grant, O.C., Ambrose, S., Krumm, S., Allison, T.A., Pritchard, L.K., Tully, M., Ozorowsky, G., Ward, A.B., Crispin, M., Doores, K.J., Woods, R.J., Benesch, J.L.P.B., Robinson, C.V., Struwe, W.B.

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: 31.99 kDa 
• Atom Count: 2,295 
• Modelled Residue Count: 282 
• Deposited Residue Count: 300 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Ripening-associated protein	A, B	150	Musa acuminata	Mutation(s): 0
UniProt
Find proteins for O22321 (Musa acuminata) Explore O22321  Go to UniProtKB:  O22321

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
GOL	C [auth A], D [auth A], E [auth A], F [auth A], G [auth A], H [auth A], I [auth B], J [auth B]	GLYCEROL C3 H8 O3 PEDCQBHIVMGVHV-UHFFFAOYSA-N
BR	K [auth B]	BROMIDE ION Br CPELXLSAUQHCOX-UHFFFAOYSA-M

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.70 Å
• R-Value Free: 0.198 
• R-Value Work: 0.168 
• R-Value Observed: 0.169 
• Space Group: P 2 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 47.53	α = 90
b = 63.33	β = 90
c = 95.98	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
XSCALE	data scaling
PHASER	phasing
PDB_EXTRACT	data extraction
XDS	data reduction

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2016-12-07 
Deposition Author(s): Struwe, W.B., Allison, T.A., Robinson, C.V., Benesch, J.L.P.B.

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Funding Organization	Location	Grant Number
Medical Research Council (United Kingdom)	United Kingdom	98101
European Research Council	United Kingdom	26851
Biotechnology and Biological Sciences Research Council	United Kingdom	--
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)	United States	R01 GM094919
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)	United States	P41 GM103390
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)	United States	1UM1AI100663

Revision History  

• Version 1.0: 2016-12-07
  Type: Initial release
  
• Version 1.1: 2017-08-30
  Changes: Author supporting evidence
• Version 1.2: 2021-07-21
  Changes: Author supporting evidence
• Version 1.3: 2022-03-30
  Changes: Author supporting evidence, Database references
• Version 1.4: 2024-01-10
  Changes: Data collection, Refinement description