Sea urchin egg tropomyosin isoforms with muscle-type and nonmuscle-type antigenicities

Ishimoda-Takagi, Tadashi; Yamazaki, Katsumi; Ando, Tetsu; Minami, Hiroshi; Nagata, Akane

doi:10.1016/0305-0491(95)00092-5

Cited by 7 publications

(1 citation statement)

References 23 publications

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“…This is, however, not unique to Epith‐1. In echinoplutei, an isoform of non‐muscle type tropomyosin, a muscle‐type tropomyosin is expressed after the continuous expression of non‐muscle type tropomyosin, which is detected in embryos younger than the pluteus stage (Ishimoda‐Takagi et al 1995; Tobita & Ishimoda‐Takagi 1996). Epith‐1 may be another embryonic protein whose expression pattern behaves like that of tropomyosin.…”

Section: Discussionmentioning

confidence: 99%

Disappearance of an epithelial cell surface‐specific glycoprotein (Epith‐1) associated with epithelial–mesenchymal conversion in sea urchin embryogenesis

2001

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Section: Discussionmentioning

confidence: 99%

Disappearance of an epithelial cell surface‐specific glycoprotein (Epith‐1) associated with epithelial–mesenchymal conversion in sea urchin embryogenesis

2001

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Distribution of tropomyosin isoforms in spiny lobster muscles

1997

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Tropomyosin isoforms present in the sea anemone, Anthopleura japonica (Anthozoa, Cnidaria)

2002

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Five isoforms of tropomyosin, designated as TMa, TMb, TMc, TMd, and TMe, were detected in the sea anemone, Anthopleura japonica. The apparent molecular weights of these isoforms were estimated to be approximately 30 kD to 37.5 kD, and their pI values were approximately 4.55 (TMa and TMb) and 4.65 (TMc, TMd, and TMe). Although sea anemone tropomyosin isoforms have the ability to bind to rabbit skeletal muscle actin, they preferably bind to actin at higher concentrations of Mg(2+) (10-20 mM) and slightly lower pH (6.2-7.2) than those used in conventional conditions. Antigenic properties of sea anemone tropomyosin seemed to be considerably specific to each isoform. Distribution of tropomyosin isoforms in the sea anemone body was somewhat portion-specific. TMa, TMb, and TMe were detected similarly in the extracts from tentacle, oral disc, column, mouth, and pedal disc. Although TMc and TMd were detected abundantly in the tentacle extract and moderately in the column and mouth extracts, these components were not contained in the pedal disc extract and detected only faintly in the oral disc extract.

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Sea urchin egg tropomyosin isoforms with muscle-type and nonmuscle-type antigenicities

Cited by 7 publications

References 23 publications

Disappearance of an epithelial cell surface‐specific glycoprotein (Epith‐1) associated with epithelial–mesenchymal conversion in sea urchin embryogenesis

Disappearance of an epithelial cell surface‐specific glycoprotein (Epith‐1) associated with epithelial–mesenchymal conversion in sea urchin embryogenesis

Distribution of tropomyosin isoforms in spiny lobster muscles

Tropomyosin isoforms present in the sea anemone, Anthopleura japonica (Anthozoa, Cnidaria)

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