Crystal structure of fibronectin-binding protein Apa mutant from Mycobacterium tuberculosis

Experimental Data Snapshot

  • Resolution: 1.77 Å
  • R-Value Free: 0.181 
  • R-Value Work: 0.163 
  • R-Value Observed: 0.164 

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Functional and structural investigations of fibronectin-binding protein Apa from Mycobacterium tuberculosis.

Kuo, C.J.Gao, J.Huang, J.W.Ko, T.P.Zhai, C.Ma, L.Liu, W.Dai, L.Chang, Y.F.Chen, T.H.Hu, Y.Yu, X.Guo, R.T.Chen, C.C.

(2019) Biochim Biophys Acta Gen Subj 1863: 1351-1359

  • DOI: https://doi.org/10.1016/j.bbagen.2019.06.003
  • Primary Citation of Related Structures:  
    5ZX9, 5ZXA

  • PubMed Abstract: 

    Alanine and proline-rich protein (Apa) is a secreted antigen of Mycobacterium spp. which involves in stimulating immune responses and adhering to host cells by binding to fibronectin (Fn). Here, we report the crystal structure of Apa from Mycobacterium tuberculosis (Mtb) and its Fn-binding characteristics.

  • Organizational Affiliation

    State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei Collaborative Innovation Center for Green Transformation of Bio-Resources, Hubei Key Laboratory of Industrial Biotechnology, School of Life Sciences, Hubei University, Wuhan 430062, China; Tianjin Institute of Industrial Enzymes National Engineering Laboratory, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, China.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Alanine and proline-rich secreted protein Apa325Mycobacterium tuberculosis H37RvMutation(s): 1 
Gene Names: 1860capamodDRv1860MTCY359.13
Find proteins for P9WIR7 (Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv))
Explore P9WIR7 
Go to UniProtKB:  P9WIR7
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP9WIR7
Sequence Annotations
  • Reference Sequence
Small Molecules
Experimental Data & Validation

Experimental Data

  • Resolution: 1.77 Å
  • R-Value Free: 0.181 
  • R-Value Work: 0.163 
  • R-Value Observed: 0.164 
  • Space Group: H 3 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 118.028α = 90
b = 118.028β = 90
c = 118.852γ = 120
Software Package:
Software NamePurpose
HKL-2000data scaling
PDB_EXTRACTdata extraction
HKL-2000data reduction

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2019-05-29
    Type: Initial release
  • Version 1.1: 2019-12-11
    Changes: Database references, Structure summary