1QK7

Solution structure of Selenocosmia huwena lectin-I(SHL-I) by 2D-NMR


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 20 
  • Selection Criteria: STEREOCHEMICAL ENERGY AND THE RESULT OF PROCHECK 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Three Dimensional Structure of Selenocosmia Huwena Lectin-I (Shl-I) from the Venom of the Spider Selenocosmia Huwena by 2D-NMR

Lu, S.Liang, S.Gu, X.

(2000) J.Protein Chem. 18: 609


  • PubMed Abstract: 
  • The three-dimensional structure of native SHL-I, a lectin from the venom of the Chinese bird spider Selenocosmia huwena, has been determined from two-dimensional 1H NMR spectroscopy recorded at 500 and 600 MHz. The best 10 structures have NOE violati ...

    The three-dimensional structure of native SHL-I, a lectin from the venom of the Chinese bird spider Selenocosmia huwena, has been determined from two-dimensional 1H NMR spectroscopy recorded at 500 and 600 MHz. The best 10 structures have NOE violation <0.3 A, dihedral violation <2 deg, and average root-mean-square differences of 0.85 + 0.06 A over backbone atoms. The structure consists of a three-stranded antiparallel beta-sheet and three turns. The three disulfide bridges and three-stranded antiparallel beta-sheet form a inhibitor cystine knot motif which is adopted by several other small proteins, such as huwentoxin-I, omega-conotoxin, and gurmarin. The C-terminal fragment from Leu28 to Trp32 adopts two sets of conformations corresponding to the cis and trans conformations of Pro31. The structure of SHL-I also has high similarity with that of the N-terminus of hevein, a lectin from rubber-tree latex.


    Related Citations: 
    • A Lectin-Like Peptide Isolated from the Venom of the Chinese Bird Spider Selenocosmia Huwena
      Liang, S.,Pan, X.
      (1995) Toxicon 33: 875


    Organizational Affiliation

    National Laboratory of Protein Engineering and Plant Genetic Engineering, Peking University, Beijing, China.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
SELENOCOSMIA HUWENA LECTIN-I
A
32Cyriopagopus schmidtiMutation(s): 0 
Find proteins for Q86C51 (Cyriopagopus schmidti)
Go to UniProtKB:  Q86C51
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 20 
  • Selection Criteria: STEREOCHEMICAL ENERGY AND THE RESULT OF PROCHECK 
  • Olderado: 1QK7 Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 1999-07-10 
  • Released Date: 1999-08-20 
  • Deposition Author(s): Lu, S., Liang, S., Gu, X.

Revision History 

  • Version 1.0: 1999-08-20
    Type: Initial release
  • Version 1.1: 2011-05-08
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance