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Rye chromosome arm 3RS encodes a homodimeric inhibitor of insect α-amylase

✍ Scribed by G. García-Casado; R. Sánchez-Monge; C. Lopez-Otín; G. Salcedo

Publisher: Springer
Year: 1994
Tongue: English
Weight: 732 KB
Volume: 89
Category: Article
ISSN: 0040-5752
DOI: 10.1007/bf00226983

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✦ Synopsis

A new inhibitor of insect α-amylase, designated RDAI-1, has been purified from rye (Secale cereale L.) endosperm. RDAI-1 is homologous to wheat homodimeric inhibitors. This homology is supported by their similar N-terminal amino-acid sequences, inhibitory activities towards amylases from Tenebrio molitor (Coleoptera) and human saliva, and aggregative properties in gel-filtration chromatography. The gene encoding RDAI-1, IdhaR1, is located on the short arm of chromosome 3R, which is homoeologous with wheat chromosome arms 3BS and 3DS, where the genes for homodimeric inhibitors have been previously mapped.

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