2N2Z image
Entry Detail
PDB ID:
2N2Z
Keywords:
Title:
NMR spatial structure of nonspecific lipid transfer protein from the dill Anethum graveolens L.
Biological Source:
Source Organism:
Host Organism:
PDB Version:
Deposition Date:
2015-05-19
Release Date:
2016-03-30
Method Details:
Experimental Method:
Conformers Calculated:
100
Conformers Submitted:
10
Selection Criteria:
structures with the least restraint violations
Macromolecular Entities
Polymer Type:polypeptide(L)
Description:Non-specific lipid-transfer protein
Chain IDs:A
Chain Length:93
Number of Molecules:1
Biological Source:Anethum graveolens
Ligand Molecules
Primary Citation
A novel lipid transfer protein from the dill Anethum graveolens L.: isolation, structure, heterologous expression, and functional characteristics.
J.Pept.Sci. 22 59 66 (2016)
PMID: 26680443 DOI: 10.1002/psc.2840

Abstact

A novel lipid transfer protein, designated as Ag-LTP, was isolated from aerial parts of the dill Anethum graveolens L. Structural, antimicrobial, and lipid binding properties of the protein were studied. Complete amino acid sequence of Ag-LTP was determined. The protein has molecular mass of 9524.4 Da, consists of 93 amino acid residues including eight cysteines forming four disulfide bonds. The recombinant Ag-LTP was overexpressed in Escherichia coli and purified. NMR investigation shows that the Ag-LTP spatial structure contains four α-helices, forming the internal hydrophobic cavity, and a long C-terminal tail. The measured volume of the Ag-LTP hydrophobic cavity is equal to ~800 A(3), which is much larger than those of other plant LTP1s. Ag-LTP has weak antifungal activity and unpronounced lipid binding specificity but effectively binds plant hormone jasmonic acid. Our results afford further molecular insight into biological functions of LTP in plants.

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Primary Citation of related structures