PMID: 11319035Apr 25, 2001Paper

Maize endosperm secretes a novel antifungal protein into adjacent maternal tissue

The Plant Journal : for Cell and Molecular Biology
A SernaR D Thompson

Abstract

A series of endosperm transfer layer-specific transcripts has been identified in maize by differential screening of a cDNA library of transcripts at 10 days after pollination. Sequence comparisons revealed among this class of cDNAs a novel, small gene family of highly diverged sequences encoding basal layer antifungal proteins (BAPs). The bap genes mapped to two loci on chromosomes 4 and 10. So far, bap-homologous sequences have been detected only in maize, teosinte and sorghum, and are not present in grasses outside the Andropogoneae tribe. BAP2 is synthesized as a pre-proprotein, and is processed by successive removal of a signal peptide and a 29-residue prodomain. The proprotein can be detected exclusively in microsomal membrane-containing fractions of kernel extracts. Immunolocalization reveals BAP2 to be predominantly located in the placentochalazal cells of the pedicel, adjacent to the basal endosperm transfer layer (BETL) cells, although the BAP2 transcript is found only in the BETL cells. The biological roles of BAP2 propeptide and mature peptide have been investigated by heterologous expression of the proprotein in Escherichia coli, and by tests of its fungistatic activity and that of the fully processed form in vitro....Continue Reading

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Citations

Jun 11, 2009·Plant Molecular Biology·Nataliya KovalchukSergiy Lopato
Jun 28, 2005·Biochimica Et Biophysica Acta·Agnès MassonneauPeter M Rogowsky
Dec 24, 2002·Current Opinion in Plant Biology·Frédéric Berger
Dec 21, 2002·Journal of Experimental Botany·Biljana StangelandOdd-Arne Olsen
Feb 15, 2011·Journal of Experimental Botany·Eleanor MarshallJose Gutierrez-Marcos
Mar 11, 2004·The Plant Cell·Odd-Arne Olsen
Nov 20, 2013·Proceedings of the National Academy of Sciences of the United States of America·Justin W WalleySteven P Briggs
May 14, 2014·Proceedings of the National Academy of Sciences of the United States of America·Guosheng LiRamin Yadegari
Jul 19, 2014·Science·Matthias PfeiferOdd-Arne Olsen
Jul 22, 2015·Journal of Experimental Botany·Gwyneth Ingram, Jose Gutierrez-Marcos
Jul 7, 2016·Journal of Experimental Botany·Susanne Bircheneder, Thomas Dresselhaus
Jul 6, 2014·Journal of Integrative Plant Biology·Antony M ChettoorPhilip W Becraft
Mar 8, 2017·Molecular Plant·Nicolas M DollThomas Widiez
Oct 22, 2005·Plant Molecular Biology·Rosanna CapparelliMauro Cresti
Aug 24, 2006·The Plant Journal : for Cell and Molecular Biology·Luis M MuñizGregorio Hueros
Jun 15, 2007·The Plant Journal : for Cell and Molecular Biology·Kevin A T SilversteinKathryn A VandenBosch
Oct 29, 2014·BMC Plant Biology·Kaifa Wei, Xiaojun Zhong
Mar 17, 2011·Plant Molecular Biology·Mio KuwanoKaoru T Yoshida
Sep 23, 2014·Applied Biochemistry and Biotechnology·Nagarathinam SelvarajViswanathan Rasappa
Dec 7, 2019·Molecular Genetics and Genomics : MGG·Xiaoxiang ZhangYaou Shen
Feb 13, 2003·The Plant Journal : for Cell and Molecular Biology·Riyaz A BhatHeinz-Albert Becker

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