Nutrition Guide

As of late 2007, two structures have been solved for this class of enzymes, with PDB accession codes 1MWY and 1MWZ.

In enzymology, a Zn2+-exporting ATPase (EC 3.6.3.5) is an enzyme that catalyzes the chemical reaction
ATP + H2O + Zn2+in ADP + phosphate + Zn2+out

The 3 substrates of this enzyme are ATP, H2O, and Zn2+, whereas its 3 products are ADP, phosphate, and Zn2+.

This enzyme belongs to the family of hydrolases, specifically those acting on acid anhydrides acting on acid anhydrides to catalyse transmembrane movement of substances. The systematic name of this enzyme class is ATP phosphohydrolase (Zn2+-exporting). Other names in common use include Zn(II)-translocating P-type ATPase, P1B-type ATPase, and AtHMA4.

As of late 2007, two structures have been solved for this class of enzymes, with PDB accession codes 2ITM and 2NLX

In enzymology, a xylulokinase (EC 2.7.1.17) is an enzyme that catalyzes the chemical reaction
ATP + D-xylulose ADP + D-xylulose 5-phosphate

Thus, the two substrates of this enzyme are ATP and D-xylulose, whereas its two products are ADP and D-xylulose 5-phosphate.

This enzyme belongs to the family of transferases, specifically those transferring phosphorus-containing groups (phosphotransferases) with an alcohol group as acceptor. The systematic name of this enzyme class is ATP:D-xylulose 5-phosphotransferase. Other names in common use include xylulokinase (phosphorylating), and D-xylulokinase. This enzyme participates in pentose and glucuronate interconversions.

vAs of late 2007, 73 structures have been solved for this class of enzymes, with PDB accession codes 1A0C, 1A0D, 1A0E, 1BHW, 1BXB, 1BXC, 1CLK, 1DID, 1DIE, 1DXI, 1GW9, 1MNZ, 1MUW, 1O1H, 1OAD, 1QT1, 1S5M, 1S5N, 1XIA, 1XIB, 1XIC, 1XID, 1XIE, 1XIF, 1XIG, 1XIH, 1XII, 1XIJ, 1XIM, 1XIN, 1XIS, 1XLA, 1XLB, 1XLC, 1XLD, 1XLE, 1XLF, 1XLG, 1XLH, 1XLI, 1XLJ, 1XLK, 1XLL, 1XLM, 1XYA, 1XYB, 1XYC, 1XYL, 1XYM, 2G4J, 2GLK, 2GUB, 2GVE, 2GYI, 2XIM, 2XIN, 2XIS, 3XIM, 3XIN, 3XIS, 4XIA, 4XIM, 4XIS, 5XIA, 5XIM, 5XIN, 6XIA, 6XIM, 7XIM, 8XIA, 8XIM, 9XIA, and 9XIM.

In enzymology, a xylose isomerase (EC 5.3.1.5) is an enzyme that catalyzes the chemical reaction
D-xylose D-xylulose

This enzyme belongs to the family of isomerases, specifically those intramolecular oxidoreductases interconverting aldoses and ketoses. The systematic name of this enzyme class is D-xylose aldose-ketose-isomerase. Other names in common use include D-xylose isomerase, D-xylose ketoisomerase, and D-xylose ketol-isomerase. This enzyme participates in pentose and glucuronate interconversions and fructose and mannose metabolism. The enzyme is used industrially to convert glucose to fructose in the manufacture of high-fructose corn syrup. It is sometimes referred to as “glucose isomerase”.

As of late 2007, two structures have been solved for this class of enzymes, with PDB accession codes 1UMZ and 1UN1.

In enzymology, a xyloglucan:xyloglucosyl transferase (EC 2.4.1.207) is an enzyme that catalyzes the chemical reaction in which a beta-(14) bond in the backbone of a xyloglucan in broken; the xyloglucanyl segment is then transferred to the O4 of the non-reducing terminal glucose residue of either xyloglucan or an oligosaccharide thereof.

This enzyme belongs to the family of glycosyltransferases, specifically the hexosyltransferases. The systematic name of this enzyme class is xyloglucan:xyloglucan xyloglucanotransferase. Other names in common use include endo-xyloglucan transferase, and xyloglucan endotransglycosylase.

As of late 2007, 15 structures have been solved for this class of enzymes, with PDB accession codes 2CN2, 2CN3, 2E0P, 2E4T, 2EEX, 2EJ1, 2EO7, 2EQD, 2JEM, 2JEN, 2JEP, 2JEQ, 2UWA, 2UWB, and 2UWC.

In enzymology, a xyloglucan-specific endo-beta-1,4-glucanase (EC 3.2.1.151) is an enzyme that catalyzes the chemical reaction
xyloglucan + H2O xyloglucan oligosaccharides

Thus, the two substrates of this enzyme are xyloglucan and H2O, whereas its product is xyloglucan oligosaccharides.

This enzyme belongs to the family of hydrolases, specifically those glycosidases that hydrolyse O- and S-glycosyl compounds. The systematic name of this enzyme class is [(1->6)-alpha-D-xylo]-(1->4)-beta-D-glucan glucanohydrolase. Other names in common use include XEG, xyloglucan endo-beta-1,4-glucanase, xyloglucanase, xyloglucanendohydrolase, XH, and 1,4-beta-D-glucan glucanohydrolase.