A conserved BURP domain defines a novel group of plant proteins with unusual primary structures |
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Authors: | J Hattori K A Boutilier M M Lookeren Campagne and B L Miki |
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Institution: | (1) Eastern Cereal and Oilseed Research Centre Agriculture and Agri-Food Canada Room 2091 K.W. Neatby Building, Ottawa Ontario, Canada K1A-0C6 Fax: +1-613-759-1701; e-mail: mikib@em.agr.ca, CA;(2) Centre for Plant Breeding and Reproduction Research (CPRO-DLO) P.O. Box 16, 6700 AA Wageningen The Netherlands, NL |
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Abstract: | We have identified a new class of plant proteins containing a common C-terminal region, which we have termed the BURP domain.
These proteins are defined not only by the BURP domain, but also by the overall similarity in their modular construction.
The BURP domain proteins consist of either three or four modules: (i) an N-terminal hydrophobic domain – a presumptive transit
peptide, joined to (ii) a short conserved segment or other short segment, (iii) an optional segment consisting of repeated
units which is unique to each member, and (iv) the C-terminal BURP domain. These individual modules appear to be combined
to form two main classes of BURP domain proteins. The BURP domain proteins, despite the similarities in their primary structural
features, show no obvious similarities in the tissues or conditions under which they are expressed. The presence of the conserved
BURP domain in diverse plant proteins suggests an important and fundamental functional role for this domain.
Received: 30 April 1998 / Accepted: 10 June 1998 |
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Keywords: | Plant BURP domain Protein evolution |
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