Ribonuclease activity is a common property of Arabidopsis CCCH-containing zinc-finger proteins.
The CCCH class of zinc fingers occurs in a large number of Arabidopsis proteins. Previous studies revealed that one such protein is a nuclease, the activity of which is attributable to one of the CCCH motifs. To examine whether nuclease activity is a more general characteristic of CCCH zinc finger containing proteins, five other such Arabidopsis proteins were assayed for a similar activity. The results indicate that all of these proteins possess nuclease activity. Thus, nuclease activity may be a common characteristic of Arabidopsis CCCH-containing proteins.
Addepalli
Balasubrahmanyam
B
Department of Plant and Soil Sciences, University of Kentucky, Lexington, KY 40546-0312, USA.
Hunt
Arthur G
AG
D020816:Amino Acid Motifs; D017360:Arabidopsis / Q000201:enzymology*; D029681:Arabidopsis Proteins / Q000145:classification* / Q000235:genetics / Q000378:metabolism*; D012260:Ribonucleases / Q000145:classification* / Q000235:genetics / Q000378:metabolism*; D016335:Zinc Fingers
D029681:Arabidopsis Proteins; D012260:Ribonucleases