The nuclear 42-kDa phosphoprotein preferentially binds promoter-containing single-stranded DNA.

Abstract:

:The DNA-binding activity of a 42-kDa phosphoprotein from salivary gland cells and cultured epithelial cells of Chironomus tentans have been analyzed by the Southwestern technique. Both the salivary gland and the epithelial cell 42-kDa polypeptides were found to be single-stranded DNA-binding proteins. They bind to single-stranded promoter-containing restriction fragments including sequences from -204 to +74 from the ecdysterone controlled I-18C gene as well as sequences including the joint histone H2A/H2B promoters in a sequence selective manner. By contrast, the 42-kDa polypeptides show no significant binding to intragenic restriction fragments from +71 to +351 from the I-18C gene. Previous and present data taken together suggest that the 42-kDa protein has a general role in the regulation of protein coding genes.

authors

Stigare J,Egyhazi E

doi

10.1016/0006-291x(91)90466-k

subject

Has Abstract

pub_date

1991-05-15 00:00:00

pages

1565-70

issue

3

eissn

0006-291X

issn

1090-2104

pii

0006-291X(91)90466-K

journal_volume

176

pub_type

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