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γ‐Purothionins: amino acid sequence of two polypeptides of a new family of thionins from wheat endosperm
Open accessAbstract
Two homologous sulfur‐rich basic polypeptides form wheat endosperm, so‐called γ 1‐purothionin and γ 2‐purothionin, are described. Purification involves extraction with volatile solvents and ammonium bicarbonate fractionation followed by reversed‐phase high‐performance liquid chromatography. The complete primary structure of these two polypeptides has been determined by automatic degradation of the intact, S‐carboxymethylated γ‐purothionins and peptides obtained by enzymatic cleavage. γ 1‐Purothionin and γ 2‐purothionin consist of 47 amino acids with an assessed molecular weight of 5239 and 5151 Da, respectively and 8 cysteines organized in 4 disulfide bridges. They present a high degree of homology among themselves (89% of identity) and are the first two thionin‐like polypeptides, so‐called y‐thionins, described from wheat endosperm.
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Cited by
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Sels, J., Mathys, J., De Coninck, B. M. A., Cammue, B. P. A., & De Bolle, M. F. C. (2008) · Plant Physiology and Biochemistry · doi:10.1016/j.plaphy.2008.06.011 · Cited by 836
Antimicrobial Peptides from Plants
Broekaert, W. F., Cammue, B. P. A., De Bolle, M. F. C., Thevissen, K., De Samblanx, G. W., Osborn, R. W., & Nielson, K. (1997) · Critical Reviews in Plant Sciences · doi:10.1080/07352689709701952 · Cited by 678
Osborn, R. W., De Samblanx, G. W., Thevissen, K., Goderis, I., Torrekens, S., Van Leuven, F., Attenborough, S., Rees, S. B., & Broekaert, W. F. (1995) · FEBS Letters · doi:10.1016/0014-5793(95)00666-w · Cited by 391
Metadata
- Authors
- Colilla, F. J., Rocher, A., & Mendez, E.
- Venue
- FEBS Letters
- Publisher
- Wiley
- Published
- 1990-09-17
- Volume
- 270
- Issue
- 1-2
- Pages
- 191-194
- ISSN
- 0014-5793 (ISSN-L)
- 1873-3468
- OpenAlex
- W2083637991
- Cited by
- 223
- References
- 0
- FWCI
- 2.39
- Type
- journal article
- Language
- en
- Open access
- bronze
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- Colilla, F. J., Rocher, A., & Mendez, E. (1990). γ‐Purothionins: amino acid sequence of two polypeptides of a new family of thionins from wheat endosperm. FEBS Letters. https://doi.org/10.1016/0014-5793(90)81265-p
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