9C75 | pdb_00009c75

The crystal structure of HIV-1 Rev Response Element Stem-Loop II G34U mutant in complex with a Fab

• PDB DOI: https://doi.org/10.2210/pdb9C75/pdb
• NAKB: 9C75

• Classification: RNA/IMMUNE SYSTEM
• Organism(s): Homo sapiens, Human immunodeficiency virus 1
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2024-06-10 Released: 2025-05-28 
• Deposition Author(s): Ojha, M., Koirala, D.
• Funding Organization(s): 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: 3.04 Å
• R-Value Free: 
  0.252 (Depositor), 0.251 (DCC) 
• R-Value Work: 
  0.205 (Depositor), 0.205 (DCC) 
• R-Value Observed: 
  0.208 (Depositor) 

Starting Model: experimental

Literature

The crystal structure of HIV-1 Rev Response Element Stem-Loop II G34U mutant in complex with a Fab

Ojha, M., Koirala, D.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 2-mer - A1B1 Pseudo Symmetry: Cyclic - C2  (Explore in 3D)
Pseudo Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors.

Macromolecule Content 

• Total Structure Weight: 71.38 kDa 
• Atom Count: 4,867 
• Modeled Residue Count: 513 
• Deposited Residue Count: 520 
• Unique protein chains: 2
• Unique nucleic acid chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
BL3-6 Fab Heavy Chain	A [auth H]	233	Homo sapiens	Mutation(s): 0

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
BL3-6 Fab Light Chain	B [auth L]	215	Homo sapiens	Mutation(s): 0

Entity ID: 3
Molecule	Chains	Length	Organism	Image
Rev Response Element	C [auth R]	72	Human immunodeficiency virus 1

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 3.04 Å
• R-Value Free:  0.252 (Depositor), 0.251 (DCC) 
• R-Value Work:  0.205 (Depositor), 0.205 (DCC) 
• R-Value Observed: 0.208 (Depositor) 

Space Group: I 2 2 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 90.878	α = 90
b = 105.014	β = 90
c = 186.603	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
XDS	data reduction
Aimless	data scaling
PHENIX	phasing

Structure Validation

Entry History 

& Funding Information

Deposition Data

• Released Date: 2025-05-28 
Deposition Author(s): Ojha, M., Koirala, D.

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Funding Organization	Location	Grant Number
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)	United States	U54AI170660-01/SUBK00019302

Revision History  

• Version 1.0: 2025-05-28
  Type: Initial release