3PUB

Crystal structure of the Bombyx mori low molecular weight lipoprotein 7 (Bmlp7)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.91 Å
  • R-Value Free: 0.235 
  • R-Value Work: 0.193 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Crystal structure of the 30 K protein from the silkworm Bombyx mori reveals a new member of the beta-trefoil superfamily

Yang, J.-P.Ma, X.-X.He, Y.-X.Li, W.-F.Kang, Y.Bao, R.Chen, Y.Zhou, C.-Z.

(2011) J.Struct.Biol. 175: 97-103

  • DOI: 10.1016/j.jsb.2011.04.003

  • PubMed Abstract: 
  • The hemolymph of the fifth instar larvae of the silkworm Bombyx mori contains a group of homologous proteins with a molecular weight of approximately 30 kDa, termed B. mori low molecular weight lipoproteins (Bmlps), which account for about 5% of the ...

    The hemolymph of the fifth instar larvae of the silkworm Bombyx mori contains a group of homologous proteins with a molecular weight of approximately 30 kDa, termed B. mori low molecular weight lipoproteins (Bmlps), which account for about 5% of the total plasma proteins. These so-called "30 K proteins" have been reported to be involved in the innate immune response and transportation of lipid and/or sugar. To elucidate their molecular functions, we determined the crystal structure of a 30 K protein, Bmlp7, at 1.91Å. It has two distinct domains: an all-α N-terminal domain (NTD) and an all-β C-terminal domain (CTD) of the β-trefoil fold. Comparative structural analysis indicates that Bmlp7 represents a new family, adding to the 14 families currently identified, of the β-trefoil superfamily. Structural comparison and simulation suggest that the NTD has a putative lipid-binding cavity, whereas the CTD has a potential sugar-binding site. However, we were unable to detect the binding of either lipid or sugar. Therefore, further investigations are needed to characterize the molecular function of this protein.


    Organizational Affiliation

    Hefei National Laboratory for Physical Sciences at Microscale and School of Life Sciences, University of Science and Technology of China, Hefei Anhui 230027, People's Republic of China.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
30kDa protein
A, B
251Bombyx moriGene Names: LOC101735447
Find proteins for E5EVW2 (Bombyx mori)
Go to UniProtKB:  E5EVW2
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.91 Å
  • R-Value Free: 0.235 
  • R-Value Work: 0.193 
  • Space Group: P 1
Unit Cell:
Length (Å)Angle (°)
a = 41.855α = 93.26
b = 49.322β = 94.04
c = 54.790γ = 103.47
Software Package:
Software NamePurpose
REFMACrefinement
HKL-2000data collection
HKL-2000data scaling
MOLREPphasing
HKL-2000data reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2011-06-01
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance
  • Version 1.2: 2014-03-05
    Type: Database references