4N42

Crystal structure of allergen protein scam1 from Scadoxus multiflorus

• PDB DOI: https://doi.org/10.2210/pdb4N42/pdb

• Classification: HYDROLASE INHIBITOR
• Organism(s): Scadoxus multiflorus
• Mutation(s): No 


• Deposited: 2013-10-08 Released: 2013-10-30 
• Deposition Author(s): Singh, A., Kumar, S., Sinha, M., Kaur, P., Sharma, S., Singh, T.P.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.20 Å
• R-Value Free: 0.196 
• R-Value Work: 0.153 
• R-Value Observed: 0.155 

Starting Model: experimental

Literature

Crystal structure of allergen protein scam1 from Scadoxus multiflorus

Singh, A., Kumar, S., Sinha, M., Kaur, P., Sharma, S., Singh, T.P.

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)

Macromolecule Content

• Total Structure Weight: 29.72 kDa 
• Atom Count: 2,253 
• Modelled Residue Count: 272 
• Deposited Residue Count: 272 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Xylanase and alpha-amylase inhibitor protein isoform III	A	272	Scadoxus multiflorus	Mutation(s): 0
UniProt
Find proteins for E3VTL0 (Scadoxus multiflorus) Explore E3VTL0  Go to UniProtKB:  E3VTL0

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
PO4	B [auth A]	PHOSPHATE ION O4 P NBIIXXVUZAFLBC-UHFFFAOYSA-K

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.20 Å
• R-Value Free: 0.196 
• R-Value Work: 0.153 
• R-Value Observed: 0.155 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 42.736	α = 90
b = 65.265	β = 102.26
c = 49.32	γ = 90

Software Package:

Software Name	Purpose
HKL-2000	data collection
AMoRE	phasing
REFMAC	refinement
HKL-2000	data reduction
SCALEPACK	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2013-10-30 
Deposition Author(s): Singh, A., Kumar, S., Sinha, M., Kaur, P., Sharma, S., Singh, T.P.

Revision History  

• Version 1.0: 2013-10-30
  Type: Initial release
  
• Version 1.1: 2015-02-11
  Changes: Experimental preparation
• Version 1.2: 2023-11-08
  Changes: Data collection, Database references, Derived calculations, Refinement description