Comparative properties of channel catfish (Ictalurus punctatus) and blue crab (Callinectes sapidus) acetylcholinesterases.

Published

Journal Article

1. Acetylcholinesterases (AChEs) from channel catfish and blue crabs were examined for substrate preference, KmS, effects of inhibitors, and pH and osmotic activity profiles. 2. Similarities were noted for substrate preference along with pH and osmotic optima. 3. Crab AChE had a lower Km (9 x 10(-5) vs 2 x 10(-4) M) and was more sensitive in terms of KI50S than fish AChE to eserine (2.6 x 10(-7) vs 3 x 10(-7) M), malathion (4.5 x 10(-5) vs 1.6 x 10(-4) M) and parathion (6.9 x 10(-5) vs 7 x 10(-4) M). 4. Fish AChE appeared easier to solubilize using Triton X-100.

Full Text

Duke Authors

Cited Authors

  • Habig, C; Di Giulio, RT; Abou-Donia, MB

Published Date

  • 1988

Published In

Volume / Issue

  • 91 / 2

Start / End Page

  • 293 - 300

PubMed ID

  • 2905945

Pubmed Central ID

  • 2905945

International Standard Serial Number (ISSN)

  • 0742-8413

Language

  • eng

Conference Location

  • England