Wales, R., Newman, B. J., Pappin, D., Gray, J. C. (1989) The extrinsic 33 kDa polypeptide of the oxygen-evolving complex of photosystem II is a putative calcium-binding protein and is encoded by a multi-gene family in pea. Plant Molecular Biology, 12 (4). pp. 439-451. ISSN 01674412 (ISSN)
Abstract
The extrinsic 33 kDa polypeptide of the water-oxidizing complex has been extracted from pea photosystem II particles by washing with alkaline-Tris and purified by ion-exchange chromatography. The N-terminal amino acid sequence has been determined, and specific antisera have been raised in rabbits and used to screen a pea leaf cDNA library in λgt11. Determination of the nucleotide sequence of positive clones revealed an essentially full-length cDNA for the 33 kDa polypeptide, the deduced amino acid sequence showing it to code for a mature protein of 248 amino acids with an N-terminal transit peptide of 81 amino acids. The protein showed a high degree of conservation with previously reported sequences for the 33 kDa protein from other species and the sequence contained a putative Ca2+-binding site with homology to mammalian intestinal calcium-binding proteins. Northern analysis of total pea RNA indicated a message of approximately 1.4 kb, in good agreement with the size of the cDNA obtained at 1.3 kbp. Southern blots of genomic DNA probed with the labelled cDNA give rise to several bands suggesting that the 33 kDa polypeptide is coded by a multi-gene family. © 1989 Kluwer Academic Publishers.
| Item Type: | Paper |
|---|---|
| Uncontrolled Keywords: | calcium-binding protein multi-gene family oxygen evolution pea chloroplasts photosynthesis |
| Subjects: | bioinformatics > genomics and proteomics > genetics & nucleic acid processing > protein structure, function, modification > protein types > polypeptides |
| CSHL Authors: | |
| Communities: | CSHL labs > Pappin lab |
| Depositing User: | Matt Covey |
| Date: | 1989 |
| Date Deposited: | 18 Sep 2014 19:52 |
| Last Modified: | 18 Sep 2014 19:52 |
| Related URLs: | |
| URI: | https://repository.cshl.edu/id/eprint/30753 |
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