The protein-coding region(s) of each mRNA is composed of a contiguous, non-overlapping string of codons called an open reading frame (commonly known as an ORF).

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#Id: 6812

#Unit 3. Fundamental Processes

RdRP has not yet been identified in mammalian cells, and high efficiency there likely results from the fact that slicing is catalytic— that is, each RISC can cleave several mRNAs.

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#Id: 8509

#Unit 1. Molecules and their Interaction Relevant to Biology

CATH differs from SCOP in that it combines manual analysis with automation based on quantitative algorithms to classify protein structures.

TLS Online TPP Program

#Id: 7613

#Unit 5. Developmental Biology

Acrosomal enzymes (acrosin and MMP2) as well as the enzymes that help establish capacitation, are inhibited by zinc, the accumulation of zinc on the zona pellucida and in the surrounding cumulus form a “zinc shield” that prevents further sperm entry

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#Id: 10140

#Unit 6. System Physiology – Plant

The auxin receptor is composed of two proteins: the SCF complex component TIR1 and the repressor protein AUX/IAA.

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#Id: 7275

#Unit 6. System Physiology – Plant

Light regulates the catalytic activity of four enzymes of the Calvin–Benson cycle directly via the ferredoxin– thioredoxin system