Subtitle:

Arabidopsis Class A and B HSFs Show a Spectrum of Transcriptional Activity

Publisher:

Komitet Biotechnologii PAN ; Instytut Chemii Bioorganicznej PAN

Abstract:

A plethora of heat shock transcription factors (HSFs) has been obtainedfrom various plant species (33,45-48,50,51). The Arabidopsis genome sequencingproject provided confirmation of the existence of at least twenty one HSFswhich were classified into three major classes. A, B and C, and numerous subclasses (9). Members of HSF class A displayed differential transcriptional activities in tobacco protoplasts that varied from 15- to 50-fold above the controllevel. This diversity of activity levels may reflect HSF variations regarding theirtranscriptional activation functions- some of the members might be the majorheat inducible HSFs (class A1 HSFs), while others act in an auxiliary capacity asHSF activity boosters (38). Two new class B HSFs showed no transcriptional activation potential. Reporter activities due to endogenous tobacco HSFs were inhibited by a class B HSFs showing high expression levels. This suppression ofendogenous HSFs by class B members provides further evidence that class BHSFs are not transcriptional activators, but are able to trons-attenuate thetranscriptional activity of bona fide activator HSFs (34,41). The transcriptionalcompetency of class C HSFs has not been determined.

Relation:

Biotechnologia, vol.58, 3 (2002)-.

Volume:

58

Issue:

3

Start page:

25

End page:

38

Detailed Resource Type:

Artykuł

Format:

application/pdf

Resource Identifier:

0860-7796 ; oai:rcin.org.pl:137866 ; IChB B-54

Source:

Biblioteka Instytutu Chemii Bioorganicznej PAN

Language:

eng

Language of abstract:

eng

Temporal coverage:

1988-2010

Rights:

Licencja Creative Commons Uznanie autorstwa-Na tych samych warunkach 4.0

Terms of use:

-

Digitizing institution:

Instytut Chemii Bioorganicznej Polskiej Akademii Nauk

Original in:

Instytut Chemii Bioorganicznej Polskiej Akademii Nauk

Projects co-financed by:

Program Operacyjny Polska Cyfrowa, lata 2014-2020, Działanie 2.3 : Cyfrowa dostępność i użyteczność sektora publicznego; środki z Europejskiego Funduszu Rozwoju Regionalnego oraz współfinansowania krajowego z budżetu państwa

Access:

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