ISDA

Entry Detail

PDB ID:

1FCT

Keywords:

Title:

NMR STRUCTURES OF FERREDOXIN CHLOROPLASTIC TRANSIT PEPTIDE FROM CHLAMYDOMONAS REINHARDTII PROMOTED BY TRIFLUOROETHANOL IN AQUEOUS SOLUTION

Biological Source:

Source Organism:

Chlamydomonas reinhardtii

PDB Version:

Deposition Date:

1994-03-30

Release Date:

1994-06-22

Method Details:

Experimental Method:

SOLUTION NMR

Conformers Submitted:

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Description:FERREDOXIN CHLOROPLASTIC TRANSIT PEPTIDE SEQUENCE FROM THE GREEN ALGA
Chain IDs:A
Chain Length:32
Number of Molecules:1
Biological Source:Chlamydomonas reinhardtii

UniProt ID:P07839 Pfam ID:PF11591

Ligand Molecules

Primary Citation

NMR structures of ferredoxin chloroplastic transit peptide from Chlamydomonas reinhardtii promoted by trifluoroethanol in aqueous solution.

Lancelin, J.M, Bally, I, Arlaud, G.J, Blackledge, M, Gans, P, Stein, M, Jacquot, J.P, Stein, M, Jacquot, J.-P, Miginiac-Maslow, M.Show

FEBS Lett. 343 261 266 (1994)

PMID: 8174712 DOI: 10.1016/0014-5793(94)80568-7

Abstact

The 32-amino acid transit peptide of the unicellular green alga Chlamydomonas reinhardtii ferredoxin has been synthesized and analysed by NMR spectroscopy and circular dichroism. The results show that while the peptide is unstructured in water, it undergoes an alpha-helix formation from residue 3 to 13 in a 30:70 molar-ratio mixture of 2,2,2-trifluoroethanol. The remainder of the peptide is still unstructured in CF3CD2OD/H2O mixtures, but is distributed on a side opposite to a hydrophobic ridge formed by Met5, Phe9 and Val13 on the induced alpha-helix. The NMR structures driven by 2,2,2-trifluoroethanol in aqueous solution, are discussed in terms of potent interactions with the chloroplast envelope and its translocation molecular machinery.

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Primary Citation of related structures