The APETALA2 domain is related to a novel type of DNA binding domain.

The APETALA2 domain is related to a novel type of DNA binding domain. The APETALA2 Domain 1 Related to a Nove1 Type of s DNA Binding Domain The recently cloned APE TALA2 (AP2) gene regulates meristem identity, floral organ specification, and seed coat development in Arabidopsis (Bowman et al., 1989,1991;Kunst et al., 1989;lrish and Sussex, 1990;Jofuku et al., 1994).The deduced AP2 amino acid sequence is different from that of other floral regulatory proteins, most of which share the same type of DNA binding motif, the MADS domain (for review, see Davies and Schwarz-Sommer, 1994). Although AP2 does not have a MADS domain, it contains two copies of a nove1 motif, dubbed the AP2 domain, which is also found in other plant genes without known function (Jofuku et al., 1994).It has been suggested that a conserved core region of the AP2 domain forms an amphipathic helix that mediates protein-protein interactions. The additional presence of a putative nuclear localization signal and of an acidic and serine-rich region outside the AP2 domain have been taken as evidente for AP2 being a transcriptional regulator (Jofuku et al., 1994). Ohme-Takagi and Shinshi (1995) have now identified a small family of tobacco proteins that bind to the ethyleneresponsive elements of genes encoding pathogenesis-relatedproteins. The amino acid sequences http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png

The APETALA2 domain is related to a novel type of DNA binding domain.

Apr 19, 1995

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Publisher
American Society of Plant Biologist
Copyright
Copyright © 1995 by the American Society of Plant Biologists
ISSN
1040-4651
eISSN
1532-298X
Publisher site
See Article on Publisher Site

Abstract

The APETALA2 Domain 1 Related to a Nove1 Type of s DNA Binding Domain The recently cloned APE TALA2 (AP2) gene regulates meristem identity, floral organ specification, and seed coat development in Arabidopsis (Bowman et al., 1989,1991;Kunst et al., 1989;lrish and Sussex, 1990;Jofuku et al., 1994).The deduced AP2 amino acid sequence is different from that of other floral regulatory proteins, most of which share the same type of DNA binding motif, the MADS domain (for review, see Davies and Schwarz-Sommer, 1994). Although AP2 does not have a MADS domain, it contains two copies of a nove1 motif, dubbed the AP2 domain, which is also found in other plant genes without known function (Jofuku et al., 1994).It has been suggested that a conserved core region of the AP2 domain forms an amphipathic helix that mediates protein-protein interactions. The additional presence of a putative nuclear localization signal and of an acidic and serine-rich region outside the AP2 domain have been taken as evidente for AP2 being a transcriptional regulator (Jofuku et al., 1994). Ohme-Takagi and Shinshi (1995) have now identified a small family of tobacco proteins that bind to the ethyleneresponsive elements of genes encoding pathogenesis-relatedproteins. The amino acid sequences

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