Detyrosylation 

tyrosine can be removed by a carboxypeptidase, where it sequentially removes the C-terminal tyrosines from α-tubulin subunits. 

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#Unit 7. System Physiology – Animal

Paracellular reabsorption of cations (K+) causes slight positive charge (+8)of the tubular lumen relative to the interstitial fluid

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#Unit 12. Applied Biology

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#Unit 10. Ecological Principles

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#Unit 5. Developmental Biology

Inducer 

the tissue that produces a signal (or signals) that changes the cellular behavior of the other tissue.

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#Unit 6. System Physiology – Plant

NodA is an N-acyltransferase that catalyzes the addition of a fatty acyl chain.

NodB is a chitin-oligosaccharide deacetylase that removes the acetyl group from the terminal nonreducing sugar.

NodC is a chitin-oligosaccharide synthase that links N-acetyl-D-glucosamine monomers.