All Ras have the CAAX motifs at the C-terminus.

TLS Online TPP Program

#Id: 7609

#Unit 5. Developmental Biology

Slow Block to polyspermy

When the cortical granules fuse with the egg cell membrane, they release protein-digesting enzymes that modify the zona pellucida proteins such that they can no longer bind sperm

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#Id: 1908

#Unit 4. Cell Communication and Cell Signaling

B-Cell Development

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#Id: 3593

#Unit 3. Fundamental Processes

The side chains of amino acids have little or no specific affinity for the purine and pyrimidine bases found in RNA.

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#Id: 8857

#Unit 2. Cellular Organization

The ATPase domains interact with the proteins

Scc1 and Scc3, which together form a cohesin ring structure which embrace one or both copies of the replicated DNA.

TLS Online TPP Program

#Id: 6161

#Unit 3. Fundamental Processes

Energy derived from absorbed light is used to reverse the photoreaction that caused the lesion.  The two chromophores in E. coli photolyase (Mr 54,000), N5,N10 methenyltetrahydrofolylpolyglutamate (MTHFpolyGlu) and FADH, perform complementary functions