Studies on sulfhydryl groups during cell division of sea urchin egg. III. SH groups of KC1-soluble proteins and their change during cleavage.
Sea urchin egg proteins extracted with KCl are mostly TCA-soluble and, conversely, those extracted with TCA are KCl-soluble. Both groups are water-insoluble and show fluctuations in-SH content during the division cycle. The fluctuation of the-SH groups of the KCl-soluble protein of the whole egg is due to a -SHright harpoon over left harpoon-S-S- interchange within the freely reacting groups and not within the sluggish and masked -SH groups of the protein. The -SH content of the KCl-soluble protein of the egg cortex also fluctuates in a similar way.
D002455:Cell Division; D048749:Cytokinesis; D004527:Egg Proteins; D010063:Ovum / Q000737:chemistry*; D011506:Proteins / Q000737:chemistry*; D012617:Sea Urchins; D013438:Sulfhydryl Compounds / Q000737:chemistry*
D004527:Egg Proteins; D011506:Proteins; D013438:Sulfhydryl Compounds
CELL DIVISION; OVUM/chemistry; PROTEINS/chemistry; SULFHYDRYL COMPOUNDS/chemistry