Comp Biochem Physiol B 1984 Jan 01;772:295-302.

Comparison by electrophoresis of proteins characteristic of the lateral line and skin of Xenopus laevis.

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In experiments aimed at determining acousticolateralis marker proteins, fractions of lateral-line organs and skin of Xenopus laevis were analyzed by one- and two-dimensional polyacrylamide-gel electrophoresis. A protein fraction of approximately 44K mol. wt (K = 1000 daltons) and isoelectric pH 6.3, consisting of at least two components, was enhanced in lateral-line neuromast tissue (containing hair cells) and was decreased in tactile organs and skin (lacking hair cells). This "neuromast-marker-protein" fraction had a mol. wt close to that of actin but was shown to be different from actin. Two other major proteins, at mol. wts 16 and 28K, were present in gels of skin and absent in gels of lateral-line tissue. These proteins were shown to be due to secretion of the amphibian granular glands and were designated "negative marker proteins".

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Species referenced: Xenopus laevis
Genes referenced: actl6a