کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1943564 | 1052674 | 2007 | 7 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Theoretical study on the thermodynamic properties of chlorophyll d-peptides coordinating ligand Theoretical study on the thermodynamic properties of chlorophyll d-peptides coordinating ligand](/preview/png/1943564.png)
The chlorophyll d containing cyanobacterium, Acaryochloris marina has provided a model system for the study of chlorophyll replacement in the function of oxygenic photosynthesis. Chlorophyll d replaces most functions of chlorophyll a in Acaryochloris marina. It not only functions as the major light-harvesting pigment, but also acts as an electron transfer cofactor in the primary charge separation reaction in the two photosystems. The Mg-chlorophyll d-peptide coordinating interaction between the amino acid residues and chlorophylls using the latest semi-empirical PM5 method were examined. It is suggested that chlorophyll d possesses similar coordination ligand properties to chlorophyll a, but chlorophyll b possesses different ligand properties. Compared with other studies involving theoretical correlation and our prior experiments, this study suggests that the chlorophyll a-bound proteins will bind chlorophyll d without difficulty when chlorophyll d is available.
Journal: Biochimica et Biophysica Acta (BBA) - Bioenergetics - Volume 1767, Issue 6, June 2007, Pages 603–609