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For example, one whale enzyme, identical to one you have in every cell of your body, is called hexokinase, the first of more than two dozen enzyme-mediated steps required to convert a molecule of sugar obtained from the plankton in the whale’s diet into a little energy—perhaps a contribution to a single low-frequency note in the music of the whale.

DUF, domain of unknown function; GATL, galacturonosyl transferase-like; GUX, glucuronic acid substitution of xylan; HEX, hexokinase; INV, invertase; IRX, irregular xylem; PGM, phosphoglucomutase; SUSY, sucrose synthase; RWA, reduced wall acetylation; UGD, UDP-glucose dehydrogenase; UGP, UDP-glucose pyrophosphorylase; UXS, UDP-xylose synthase.

DUF, domain of unknown function; GATL, galacturonosyl transferase-like; GUX, glucuronic acid substitution of xylan; HEX, hexokinase; INV, invertase; IRX, irregular xylem; PGM, phosphoglucomutase; SUSY, sucrose synthase; RWA, reduced wall acetylation; UGD, UDP-glucose dehydrogenase; UGP, UDP-glucose pyrophosphorylase; UXS, UDP-xylose synthase.

Researchers already suspect that actin is related to the enzyme hexokinase.

AGPase, ADP-glucose pyrophosphorylase; F16BP, fructose-1,6-biphosphatase; HexK, hexokinase; INV, invertase; PFK, phosphofructokinase; PFPP, pyrophosphate-fructose-6-phosphate-1-phosphotransferase; PGI, phosphoglucose isomerase; PGM, phosphoglucomutase; SBE, starch branching enzyme; SP, starch phosphorylase; SPP, sucrose phosphate phosphatase; SS, starch synthase; SuSy, sucrose synthase; SUPS, sucrose phosphate synthase; UDP-GPP, UDP-glucose pyrophosphorylase.