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Biochem Biophys Res Commun. 1989 Jan 16;158(1):209-13.

The rho gene product expressed in E. coli is a substrate of botulinum ADP-ribosyltransferase C3.

Author information

1
Rudolf-Buchheim-Institut für Pharmakologie, Giessen, FRG.

Abstract

The ras-related rho A protein expressed in E. coli, was ADP-ribosylated by botulinum ADP-ribosyltransferase C3. C3 also modified the valine-14 mutant rho protein but not the products of H-ras, R-ras, ral, ypt, and rap 1 genes. A ras-rho chimaera consisting of 60 amino acids from the amino terminus of ras fused to 133 amino acids from the carboxy terminus of rho was not modified by C3. Antibodies raised against the porcine brain cytosolic substrate of C3 cross reacted with the rho, valine-14 rho and ras-rho proteins, but not with the gene products of H-ras, R-ras, ral or rap 1. Polyclonal anti-H-ras antibodies cross reacted with H-ras but not with ral, rho, or the C3 substrate purified from porcine brain.

PMID:
2492192
DOI:
10.1016/s0006-291x(89)80199-8
[Indexed for MEDLINE]

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