7MA4

HIV-1 Protease (I84V) in Complex with UMass3

• PDB DOI: https://doi.org/10.2210/pdb7MA4/pdb

• Classification: HYDROLASE/HYDROLASE INHIBITOR
• Organism(s): Human immunodeficiency virus type 1 (BRU ISOLATE)
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2021-03-31 Released: 2022-11-09 
• Deposition Author(s): Lockbaum, G.J., Schiffer, C.A.
• 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: 1.99 Å
• R-Value Free: 0.241 
• R-Value Work: 0.194 
• R-Value Observed: 0.197 

Starting Model: experimental

Literature

HIV-1 Protease (I84V) in Complex with UMass3

Lockbaum, G.J., Schiffer, C.A.

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)

Biological Assembly Evidence: gel filtration

Macromolecule Content

• Total Structure Weight: 22.31 kDa 
• Atom Count: 1,715 
• Modelled Residue Count: 198 
• Deposited Residue Count: 198 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Protease	A [auth B], B [auth A]	99	Human immunodeficiency virus type 1 (BRU ISOLATE)	Mutation(s): 1  Gene Names: gag-pol EC: 3.4.23.16
UniProt
Find proteins for P03367 (Human immunodeficiency virus type 1 group M subtype B (isolate BRU/LAI)) Explore P03367  Go to UniProtKB:  P03367

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
K2A (Subject of Investigation/LOI)	D [auth A]	(3R,3aS,6aR)-hexahydrofuro[2,3-b]furan-3-yl [(1S,2R)-1-benzyl-2-hydroxy-3-({[4-(hydroxymethyl)phenyl]sulfonyl}[(2S)-2-methylbutyl]amino)propyl]carbamate C29 H40 N2 O8 S ALWBGUNCNDFMFE-QKULBLGOSA-N
SO4	C [auth A]	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L

Binding Affinity Annotations
ID	Source	Binding Affinity
K2A	BindingDB:  7MA4	Ki: min: 5.00e-4, max: 0.08 (nM) from 4 assay(s)

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.99 Å
• R-Value Free: 0.241 
• R-Value Work: 0.194 
• R-Value Observed: 0.197 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 51.232	α = 90
b = 58.135	β = 90
c = 62.128	γ = 90

Software Package:

Software Name	Purpose
HKL-2000	data scaling
PHASER	phasing
PHENIX	refinement
Coot	model building
PDB_EXTRACT	data extraction

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2022-11-09 
Deposition Author(s): Lockbaum, G.J., Schiffer, C.A.

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Funding Organization	Location	Grant Number
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)	United States	P01-GM109767

Revision History  

• Version 1.0: 2022-11-09
  Type: Initial release
  
• Version 1.1: 2023-10-18
  Changes: Data collection, Refinement description