9C37 | pdb_00009c37

Nir2 NirD domain dimer

• PDB DOI: https://doi.org/10.2210/pdb9C37/pdb

• Classification: LIPID TRANSPORT
• Organism(s): Homo sapiens
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2024-05-31 Released: 2026-03-18 
• Deposition Author(s): Rahn, T.A., Airola, M.V.
• Funding Organization(s): National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.45 Å
• R-Value Free: 
  0.264 (Depositor), 0.264 (DCC) 
• R-Value Work: 
  0.206 (Depositor), 0.207 (DCC) 
• R-Value Observed: 
  0.209 (Depositor) 

Starting Model: experimental

Literature

Nir2 NirD domain dimer

Rahn, T.A., Lee, W.R., Li, W.T., Airola, M.V., Liou, J.

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: 36.35 kDa 
• Atom Count: 2,539 
• Modeled Residue Count: 315 
• Deposited Residue Count: 340 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
PITPNM1, Nir2	A	340	Homo sapiens	Mutation(s): 0  Gene Names: PITPNM1

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.45 Å
• R-Value Free:  0.264 (Depositor), 0.264 (DCC) 
• R-Value Work:  0.206 (Depositor), 0.207 (DCC) 
• R-Value Observed: 0.209 (Depositor) 

Space Group: P 6₃ 2 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 106.765	α = 90
b = 106.765	β = 90
c = 136.885	γ = 120

Software Package:

Software Name	Purpose
PHENIX	refinement
autoPROC	data reduction
STARANISO	data scaling
PHENIX	phasing

Structure Validation

Entry History 

& Funding Information

Deposition Data

• Released Date: 2026-03-18 
Deposition Author(s): Rahn, T.A., Airola, M.V.

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Funding Organization	Location	Grant Number
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)	United States	R35GM128666

Revision History  

• Version 1.0: 2026-03-18
  Type: Initial release