1LMI

1.5 ANGSTROM RESOLUTION CRYSTAL STRUCTURE OF A SECRETED PROTEIN FROM MYCOBACTERIUM TUBERCULOSIS-MPT63


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.5 Å
  • R-Value Free: 0.252 
  • R-Value Work: 0.197 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Crystal structure of a major secreted protein of Mycobacterium tuberculosis-MPT63 at 1.5-A resolution

Goulding, C.W.Parseghian, A.Sawaya, M.R.Cascio, D.Apostol, M.Gennaro, M.L.Eisenberg, D.

(2002) Protein Sci. 11: 2887-2893

  • DOI: 10.1110/ps.0219002

  • PubMed Abstract: 
  • MPT63 is a small, major secreted protein of unknown function from Mycobacterium tuberculosis that has been shown to have immunogenic properties and has been implicated in virulence. A BLAST search identified that MPT63 has homologs only in other myco ...

    MPT63 is a small, major secreted protein of unknown function from Mycobacterium tuberculosis that has been shown to have immunogenic properties and has been implicated in virulence. A BLAST search identified that MPT63 has homologs only in other mycobacteria, and is therefore mycobacteria specific. As MPT63 is a secreted protein, mycobacteria specific, and implicated in virulence, MPT63 is an attractive drug target against the deadliest infectious disease, tuberculosis (TB). As part of the TB Structural Genomics Consortium, the X-ray crystal structure of MPT63 was determined to 1.5-Angstrom resolution with the hope of yielding functional information about MPT63. The structure of MPT63 is an antiparallel beta-sandwich immunoglobulin-like fold, with the unusual feature of the first beta-strand of the protein forming a parallel addition to the small antiparallel beta-sheet. MPT63 has weak structural similarity to many proteins with immunoglobulin folds, in particular, Homo sapiens beta2-adaptin, bovine arrestin, and Yersinia pseudotuberculosis invasin. Although the structure of MPT63 gives no conclusive evidence to its function, structural similarity suggests that MPT63 could be involved in cell-host interactions to facilitate endocytosis/phagocytosis.


    Organizational Affiliation

    Howard Hughes Medical Institute, University of California at Los Angeles-DOE, Center for Genomics and Proteomics, Los Angeles 90095, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Immunogenic protein MPT63/MPB63
A
131Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv)Gene Names: mpt63
Find proteins for P9WIP1 (Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv))
Go to UniProtKB:  P9WIP1
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.5 Å
  • R-Value Free: 0.252 
  • R-Value Work: 0.197 
  • Space Group: P 65 2 2
Unit Cell:
Length (Å)Angle (°)
a = 43.129α = 90.00
b = 43.129β = 90.00
c = 228.798γ = 120.00
Software Package:
Software NamePurpose
MLPHAREphasing
DENZOdata reduction
SHELXL-97refinement
SCALEPACKdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2002-12-04
    Type: Initial release
  • Version 1.1: 2008-04-28
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance