Macromolecule Content

• Total Structure Weight: 2864.35 
• Atom Count: 116 
• Residue Count: 29 
• Unique protein chains: 1

1XNL

ASLV fusion peptide

• DOI: 10.2210/pdb1XNL/pdb

• Classification: VIRAL PROTEIN
• Organism(s): Avian leukosis virus RSA


• Deposited: 2004-10-05 Released: 2005-01-11 
• Deposition Author(s): Cheng, S.F., Wu, C.W., Kantchev, E.A., Chang, D.K.

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 350 
• Conformers Submitted: 20 
• Selection Criteria: structures with the least restraint violations 

Literature

Structure and membrane interaction of the internal fusion peptide of avian sarcoma leukosis virus

Cheng, S.F., Wu, C.W., Kantchev, E.A., Chang, D.K.

(2004) Eur.J.Biochem. 271: 4725-4736

• PubMed: 15606759 
• DOI: 10.1111/j.1432-1033.2004.04436.x


• PubMed Abstract: 
  

The structure and membrane interaction of the internal fusion peptide (IFP) fragment of the avian sarcoma and leucosis virus (ASLV) envelope glycoprotein was studied by an array of biophysical methods. The peptide was found to induce lipid mixing of vesicles more strongly than the fusion peptide derived from the N-terminal fusion peptide of influenza virus (HA2-FP). It was observed that the helical structure was enhanced in association with the model membranes, particularly in the N-terminal portion of the peptide. According to the infrared study, the peptide inserted into the membrane in an oblique orientation, but less deeply than the influenza HA2-FP. Analysis of NMR data in sodium dodecyl sulfate micelle suspension revealed that Pro13 of the peptide was located near the micelle-water interface. A type II beta-turn was deduced from NMR data for the peptide in aqueous medium, demonstrating a conformational flexibility of the IFP in analogy to the N-terminal FP such as that of gp41. A loose and multimodal self-assembly was deduced from the rhodamine fluorescence self-quenching experiments for the peptide bound to the membrane bilayer. Oligomerization of the peptide and its variants can also be observed in the electrophoretic experiments, suggesting a property in common with other N-terminal FP of class I fusion proteins.

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Organizational Affiliation: 

Institute of Chemistry, Academia Sinica, Taipei, Taiwan, Republic of China.

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
membrane protein gp37	A	29	Avian leukosis virus RSA	Mutation(s): 0  Gene Names: env
Find proteins for P03397 (Avian leukosis virus RSA) Go to UniProtKB:  P03397

Small Molecules

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
NH2	A	NON-POLYMER	H2 N		--

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 350 
• Conformers Submitted: 20 
• Selection Criteria: structures with the least restraint violations 

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2004-10-05 
• Released Date: 2005-01-11 
• Deposition Author(s): Cheng, S.F., Wu, C.W., Kantchev, E.A., Chang, D.K.

Revision History 

• Version 1.0: 2005-01-11
  Type: Initial release
• Version 1.1: 2008-04-30
  Type: Version format compliance
• Version 1.2: 2011-07-13
  Type: Version format compliance