5MSQ

Structure of the A domain of carboxylic acid reductase (CAR) from Nocardia iowensis in complex with AMP and iodide

• PDB DOI: https://doi.org/10.2210/pdb5MSQ/pdb

• Classification: OXIDOREDUCTASE
• Organism(s): Nocardia iowensis
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2017-01-05 Released: 2018-01-17 
• Deposition Author(s): Dunstan, M.S., Leys, D.
• Funding Organization(s): Biotechnology and Biological Sciences Research Council

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.74 Å
• R-Value Free: 0.208 
• R-Value Work: 0.175 
• R-Value Observed: 0.177 

Literature

Structure and mechanism of carboxylic acid reductase

Gahloth, D., Dunstan, M.S., Quaglia, D., Klumbys, E., Lockhart-Cairns, M.P., Hill, A.M., Derrington, S.R., Scrutton, N.S., Turner, N.J., Leys, D.

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: 129.46 kDa 
• Atom Count: 5,679 
• Modelled Residue Count: 631 
• Deposited Residue Count: 1,174 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Carboxylic acid reductase	A	1,174	Nocardia iowensis	Mutation(s): 0  Gene Names: car EC: 1.2.1 (PDB Primary Data), 1.2.1.30 (PDB Primary Data)
UniProt
Find proteins for Q6RKB1 (Nocardia iowensis) Go to UniProtKB:  Q6RKB1

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
AMP	B [auth A]	ADENOSINE MONOPHOSPHATE C10 H14 N5 O7 P UDMBCSSLTHHNCD-KQYNXXCUSA-N
IOD	C [auth A], D [auth A], E [auth A], F [auth A], G [auth A]	IODIDE ION I XMBWDFGMSWQBCA-UHFFFAOYSA-M

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.74 Å
• R-Value Free: 0.208 
• R-Value Work: 0.175 
• R-Value Observed: 0.177 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 52.42	α = 90
b = 102.61	β = 97.88
c = 66.39	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
XDS	data reduction
XDS	data scaling
Auto-Rickshaw	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2018-01-17 
Deposition Author(s): Dunstan, M.S., Leys, D.

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Funding Organization	Location	Grant Number
Biotechnology and Biological Sciences Research Council	United Kingdom	BB/K00199X/1

Revision History  

• Version 1.0: 2018-01-17
  Type: Initial release
  
• Version 1.1: 2019-10-16
  Changes: Data collection
• Version 1.2: 2024-05-08
  Changes: Data collection, Database references