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TLS Online TPP Program

#Id: 6760

RNase E and PNPase, along with a helicase and another accessory enzyme, form a multiprotein complex called the degradosome.



#Unit 3. Fundamental Processes #mRNA stability, transport, CRISPR, miRNA & siRNA #Part B Pointers
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TLS Online TPP Program

#Id: 953

#Unit 5. Developmental Biology

In Strongylocentrotus purpuratus, the acrosome reaction is initiated by a repeating polymer of fucose sulfate.
TLS Online TPP Program

#Id: 954

#Unit 5. Developmental Biology

When sulfated polysaccharide binds to its receptor on the sperm, activates 3 sperm membrane proteins: 
(1) A calcium transport channel
(2) A sodium-hydrogen exchanger
(3) A phospholipase enzyme (IP3)
TLS Online TPP Program

#Id: 955

#Unit 5. Developmental Biology

Extension of the acrosomal process by the polymerization of G-actin molecules into F-actin by RhoB
TLS Online TPP Program

#Id: 956

#Unit 5. Developmental Biology

Acrosomal process have an insoluble, 30,500-Da protein called bindin.
TLS Online TPP Program

#Id: 957

#Unit 5. Developmental Biology

Species-specific bindin receptors present on the egg vitelline envelope.
TLS Online TPP Program

#Id: 958

#Unit 5. Developmental Biology

Fast block to polyspermy 
Within 1–3 seconds after the binding of the first sperm, the membrane potential shifts from -70mV to about +20 mV