CERATO-ULMIN - WILTING TOXIN OF DUTCH ELM DISEASE FUNGUS

被引:43
作者
STEVENSON, KJ
SLATER, JA
TAKAI, S
机构
[1] Biochemistry Group, Department of Chemistry, University of Calgary, Calgary
关键词
amino acid composition; amino acid sequence; cerato-ulmin; Ceratocystis ulmi; Dutch elm disease; protein; MW; wilting toxin;
D O I
10.1016/0031-9422(79)80060-6
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
Cerato-ulmin, a toxin produced by Ceratocystis ulmi, the causal agent of Dutch elm disease, has been characterized as a small protein (128 residues) with a MW of ca 13000. The protein has a high content of cystine, proline, leucine, serine and aspartic acid/asparagine; it is low in histidine, lysine, arginine, isoleucine, phenylalanine and tyrosine and does not contain cysteine, methionine, or tryptophan. The amino acid sequence of the N-terminal region is: H2N-Ala-Asp-Ser-Tyr-Asp-Pro-Cys-Thr-Gly-Leu-Leu-Gln-Lys-Ser-Pro-Gln-Cys-Cys-Asp-Thr-Asp-Ile-Leu-Gly-Val-Ser-Asp-Leu-Asp-Cys-. Toxic symptoms similar to those of Dutch elm disease can be elicited by cerato-ulmin in white elm shoot cuttings (Ulmus americana L.). © 1979.
引用
收藏
页码:235 / 238
页数:4
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