5XZ4 | pdb_00005xz4

The X-tay structure of Bumblebee PGRP-SA


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.41 Å
  • R-Value Free: 
    0.209 (Depositor), 0.180 (DCC) 
  • R-Value Work: 
    0.185 (Depositor), 0.150 (DCC) 
  • R-Value Observed: 
    0.186 (Depositor) 

Starting Model: experimental
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wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Structural Insights into the Preferential Binding of PGRP-SAs from Bumblebees and Honeybees to Dap-Type Peptidoglycans Rather than Lys-Type Peptidoglycans.

Liu, Y.J.Zhao, X.M.Huang, J.X.Chen, M.M.An, J.D.

(2019) J Immunol 202: 249-259

  • DOI: https://doi.org/10.4049/jimmunol.1800439
  • Primary Citation of Related Structures:  
    5XZ4

  • PubMed Abstract: 

    The peptidoglycan recognition protein SAs (PGRP-SAs) from Bombus ignitus (Bi-PGRP-SA), Apis mellifera (Am-PGRP-SA), and Megachile rotundata PGRP-SA (Mr-PGRP-SA) exhibit an intrinsic ability to preferentially bind to Dap-type peptidoglycan (PGN) from Bacillus subtilis rather than Lys-type PGN from Micrococcus luteus This ability is more analogous to the binding exhibited by PGRP-LCx and PGRP-SD than to that exhibited by PGRP-SA in Drosophila Moreover, Bi-PGRP-SA and Am-PGRP-SA share greater sequence identity with Drosophila PGRP-LCx than with PGRP-SD and retain several conserved contact residues, including His 37 /His 38 , His 60 /His 61 , Trp 66 /Trp 67 , Ala 150 /Ala 151 , and Thr 151 /Thr 152 However, the corresponding contact residue Arg 85 is not a major anchor residue in bees (e.g., bumblebees, honeybees, and leaf-cutting bees), and an in silico analysis indicated that the residues Thr 151 /Thr 152 and Ser 153 /Ser 154 of Bi-PGRP-SA and Am-PGRP-SA are deduced to be anchor residues. In addition, the nonconserved residues Asp 67 in Bi-PGRP-SA and Mr-PGRP-SA and His 68 in Am-PGRP-SA are deduced to be involved in the binding to Dap-type PGNs in bumblebees, honeybees, and leaf-cutting bees. We conclude that the structures and specificities of PGRP-SAs in bees are more analogous to those of PGRP-LCx than to those of Drosophila PGRP-SA. This phenomenon might be explained by the fact that the evolutionary clade of Hymenoptera is more ancient than that of Diptera.


  • Organizational Affiliation
    • Key Laboratory for Insect Pollinator Biology of the Ministry of Agriculture, Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing 100093, China.

Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Bumblebee peptidoglycan recognition protein SA
A, B
173BombusMutation(s): 0 
UniProt
Find proteins for A0A452CSL6 (Bombus)
Explore A0A452CSL6 
Go to UniProtKB:  A0A452CSL6
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupA0A452CSL6
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.41 Å
  • R-Value Free:  0.209 (Depositor), 0.180 (DCC) 
  • R-Value Work:  0.185 (Depositor), 0.150 (DCC) 
  • R-Value Observed: 0.186 (Depositor) 
Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 115.95α = 90
b = 49.94β = 120.37
c = 78.77γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
HKL-3000data reduction
HKL-3000data scaling
PHASERphasing

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Natural Science Foundation of ChinaChinaNO.31672500
Agricultural Science and Technology Innovation ProgramChinaCAAS-ASTIP-2015-IAR

Revision History  (Full details and data files)

  • Version 1.0: 2018-09-19
    Type: Initial release
  • Version 1.1: 2019-10-02
    Changes: Data collection, Database references
  • Version 1.2: 2023-11-22
    Changes: Data collection, Database references, Refinement description
  • Version 1.3: 2024-11-06
    Changes: Structure summary