3R9M

Crystal structure of the Brox Bro1 domain


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.95 Å
  • R-Value Free: 0.167 
  • R-Value Work: 0.149 
  • R-Value Observed: 0.149 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

The Phe105 Loop of Alix Bro1 Domain Plays a Key Role in HIV-1 Release.

Sette, P.Mu, R.Dussupt, V.Jiang, J.Snyder, G.Smith, P.Xiao, T.S.Bouamr, F.

(2011) Structure 19: 1485-1495

  • DOI: 10.1016/j.str.2011.07.016
  • Primary Citation of Related Structures:  
    3R9M, 3RAU

  • PubMed Abstract: 
  • Alix and cellular paralogs HD-PTP and Brox contain N-terminal Bro1 domains that bind ESCRT-III CHMP4. In contrast to HD-PTP and Brox, expression of the Bro1 domain of Alix alleviates HIV-1 release defects that result from interrupted access to ESCRT. In an attempt to elucidate this functional discrepancy, we solved the crystal structures of the Bro1 domains of HD-PTP and Brox ...

    Alix and cellular paralogs HD-PTP and Brox contain N-terminal Bro1 domains that bind ESCRT-III CHMP4. In contrast to HD-PTP and Brox, expression of the Bro1 domain of Alix alleviates HIV-1 release defects that result from interrupted access to ESCRT. In an attempt to elucidate this functional discrepancy, we solved the crystal structures of the Bro1 domains of HD-PTP and Brox. They revealed typical "boomerang" folds they share with the Bro1 Alix domain. However, they each contain unique structural features that may be relevant to their specific function(s). In particular, phenylalanine residue in position 105 (Phe105) of Alix belongs to a long loop that is unique to its Bro1 domain. Concurrently, mutation of Phe105 and surrounding residues at the tip of the loop compromise the function of Alix in HIV-1 budding without affecting its interactions with Gag or CHMP4. These studies identify a new functional determinant in the Bro1 domain of Alix.


    Organizational Affiliation

    Laboratory of Molecular Microbiology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
BRO1 domain-containing protein BROXA376Homo sapiensMutation(s): 0 
Gene Names: BROXBROFTIC1orf58
UniProt & NIH Common Fund Data Resources
Find proteins for Q5VW32 (Homo sapiens)
Explore Q5VW32 
Go to UniProtKB:  Q5VW32
PHAROS:  Q5VW32
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ5VW32
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
EDO
Query on EDO

Download Ideal Coordinates CCD File 
B [auth A],
C [auth A],
D [auth A],
E [auth A],
F [auth A],
B [auth A],
C [auth A],
D [auth A],
E [auth A],
F [auth A],
G [auth A],
H [auth A],
I [auth A]
1,2-ETHANEDIOL
C2 H6 O2
LYCAIKOWRPUZTN-UHFFFAOYSA-N
 Ligand Interaction
FMT
Query on FMT

Download Ideal Coordinates CCD File 
J [auth A],
K [auth A],
L [auth A],
M [auth A],
N [auth A],
J [auth A],
K [auth A],
L [auth A],
M [auth A],
N [auth A],
O [auth A],
P [auth A],
Q [auth A],
R [auth A],
S [auth A],
T [auth A]
FORMIC ACID
C H2 O2
BDAGIHXWWSANSR-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.95 Å
  • R-Value Free: 0.167 
  • R-Value Work: 0.149 
  • R-Value Observed: 0.149 
  • Space Group: P 63
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 189.204α = 90
b = 189.204β = 90
c = 49.523γ = 120
Software Package:
Software NamePurpose
CBASSdata collection
PHASERphasing
PHENIXrefinement
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

View Full Validation Report




Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2011-09-14
    Type: Initial release
  • Version 1.1: 2011-11-16
    Changes: Database references