[Actin-binding proteins in Xenopus laevis oocytes and eggs. I. Presence and distribution of alpha-actinin and vinculin].
We studied the distribution of two actin-binding proteins, alpha-actinin and vinculin, in the oocytes and eggs of Xenopus laevis. These proteins are localized in the cortical area. A morphological connection of vinculin with the mirofilaments and plasma membrane was shown; the actin matrix in the egg was gold-labeled more intensely than in the oocyte. A possible role of these proteins in development of the cortical contractility and rearrangement of the actin cytoskeleton during oocyte maturation is discussed.
Riabova
L V
LV
Kol'tsov Institute of Developmental Biology, Russian Academy of Sciences, Moscow, Russia.
Krylyshkina
O P
OP
Vasetskiĭ
S G
SG
D000185:Actinin / Q000032:analysis*; D000199:Actins / Q000378:metabolism*; D000818:Animals; D004527:Egg Proteins / Q000378:metabolism*; D008854:Microscopy, Electron; D009865:Oocytes / Q000378:metabolism*; D010063:Ovum / Q000378:metabolism*; D011485:Protein Binding; D016596:Vinculin / Q000032:analysis*; D014982:Xenopus laevis
D000199:Actins; D004527:Egg Proteins; D000185:Actinin; D016596:Vinculin