PT  - JOURNAL ARTICLE
AU  - YČAS, MARTYNAS
TI  - The Respiratory and Glycolytic Enzymes of Sea-Urchin Eggs
DP  - 1954 Jun 01
TA  - Journal of Experimental Biology
PG  - 208--217
VI  - 31
IP  - 2
4099  - http://jeb.biologists.org/content/31/2/208.short
4100  - http://jeb.biologists.org/content/31/2/208.full
SO  - J. Exp. Biol.1954 Jun 01; 31
AB  - 1. Activity corresponding to phosphoglucomutase, phosphohexoisomerase, aldolase, triosephosphate dehydrogenase, enolase and lactic dehydrogenase has been demonstrated in homogenates prepared from unfertilized sea-urchin eggs (Strongylocentrotus purpuratus and Lytechinus pictus). 2. The presence of cytochromes a and b1 has been confirmed. These cytochromes sediment in a relatively low centrifugal field. 3. No cytochrome c could be demonstrated, although cytochrome c is both reduced and oxidized by homogenates, and addition of cytochrome c increases the endogenous respiration and oxidation of succinate. 4. These results support the view that the usual glycolytic pathway operates in the sea-urchin egg and is the principal route of oxidation of carbohydrate.