3C77

1.08 A crystal structure of nitrophorin 4 from Rhodnius prolixus containing FE(III) deuteroporphyrin ix complexed with ammonia at ph 7.5

• PDB DOI: https://doi.org/10.2210/pdb3C77/pdb
• Entry: 3C77 supersedes: 2AT4

• Classification: TRANSPORT PROTEIN
• Organism(s): Rhodnius prolixus
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2008-02-06 Released: 2008-03-04 
• Deposition Author(s): Amoia, A.M., Montfort, W.R.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.08 Å
• R-Value Free: 0.162 
• R-Value Work: 0.137 
• R-Value Observed: 0.137 

Starting Model: experimental

Literature

Heme Distortion in Nitrophorin 4: High Resolution Structures of Mutated Positions L123V and L133V and Heme Altered Proteins

Amoia, A.M., Montfort, W.R.

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: 20.87 kDa 
• Atom Count: 2,046 
• Modelled Residue Count: 184 
• Deposited Residue Count: 184 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Nitrophorin-4	A [auth X]	184	Rhodnius prolixus	Mutation(s): 0  EC: 1.7.6.1
UniProt
Find proteins for Q94734 (Rhodnius prolixus) Explore Q94734  Go to UniProtKB:  Q94734

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
FDE	C [auth X]	FE(III) DEUTEROPORPHYRIN IX C30 H28 Fe N4 O4 QQYZTXBVPVYDJC-RWRCOHKGSA-L
NH3	B [auth X]	AMMONIA H3 N QGZKDVFQNNGYKY-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.08 Å
• R-Value Free: 0.162 
• R-Value Work: 0.137 
• R-Value Observed: 0.137 
• Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 70.156	α = 90
b = 42.745	β = 94.03
c = 52.821	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
CrystalClear	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2008-03-04 
Deposition Author(s): Amoia, A.M., Montfort, W.R.
• This entry supersedes: 2AT4

Revision History  

• Version 1.0: 2008-03-04
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2023-08-30
  Changes: Data collection, Database references, Derived calculations, Refinement description