Abstract
Three components of differentiated muscle membrane, the acetylcholine receptor, acetylcholinesterase (EC 3.1.1.7; acetylcholine hydrolase), and adenylate cyclase [EC 4.6.1.1; ATP pyrophosphate-lyase (cyclizing)], appear simultaneously during myogenesis in cultures of embryonic chick muscle, after the main period of rapid cell fusion. However, unlike the cytoplasmic proteins of differentiated muscle, the elaboration of these membrane components is unaltered when fusion is blocked by lowering the calcium concentration in the medium. These results suggest that membrane differentiation and cytoplasmic differentiation are regulated independently during muscle development.
MeSH Terms
Acetylcholinesterase/metabolism
Adenylyl Cyclases/metabolism
Animals
Bungarotoxins/metabolism
Calcium/pharmacology
Cell Differentiation
Cell Fusion/drug effects
Cell Membrane/enzymology
Chick Embryo
Culture Techniques
Cytoplasm/enzymology
Iodine Radioisotopes
Kinetics
Muscles/embryology,enzymology
Receptors, Cholinergic
Chemicals
Bungarotoxins
Iodine Radioisotopes
Receptors, Cholinergic
Acetylcholinesterase
Adenylyl Cyclases
Calcium
Authors & Affiliations
2 authors, click to expand affiliations / ORCID
Prives J M
Paterson B M
References (21)
21 references, click to expand
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