Enzymes
| UniProtKB help_outline | 4 proteins |
| Enzyme class help_outline |
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Name help_outline
α-D-galacturonosyl-[(1→2)-α-L-rhamnosyl-(1→4)-α-D-galacturonosyl]n
Identifier
CHEBI:139159
Charge
-2
Formula
(C12H17O10)n.C6H9O7
Search links
Involved in 1 reaction(s)
Find proteins in UniProtKB for this molecule
Form(s) in this reaction:
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Identifier: RHEA-COMP:14274Polymer name: α-D-galacturonosyl-[(1→2)-α-L-rhamnosyl-(1→4)-α-D-galacturonosyl](n)Polymerization index help_outline nFormula C6H9O7(C12H17O10)nCharge (-1)(-1)nMol File for the polymer
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- Name help_outline UDP-β-L-rhamnose Identifier CHEBI:83836 Charge -2 Formula C15H22N2O16P2 InChIKeyhelp_outline DRDCJEIZVLVWNC-SLBWPEPYSA-L SMILEShelp_outline C[C@@H]1O[C@H](OP([O-])(=O)OP([O-])(=O)OC[C@H]2O[C@H]([C@H](O)[C@@H]2O)n2ccc(=O)[nH]c2=O)[C@H](O)[C@H](O)[C@H]1O 2D coordinates Mol file for the small molecule Search links Involved in 10 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
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Name help_outline
[(1→2)-α-L-rhamnosyl-(1→4)-α-D-galacturonosyl]n
Identifier
CHEBI:139158
Charge
-1
Formula
(C12H17O10)n.H2O
Search links
Involved in 1 reaction(s)
Find proteins in UniProtKB for this molecule
Form(s) in this reaction:
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Identifier: RHEA-COMP:14276Polymer name: [(1→2)-α-L-rhamnosyl-(1→4)-α-D-galacturonosyl](n+1)Polymerization index help_outline n+1Formula H2O(C12H17O10)n+1Charge (0)(-1)n+1Mol File for the polymer
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- Name help_outline UDP Identifier CHEBI:58223 Charge -3 Formula C9H11N2O12P2 InChIKeyhelp_outline XCCTYIAWTASOJW-XVFCMESISA-K SMILEShelp_outline O[C@@H]1[C@@H](COP([O-])(=O)OP([O-])([O-])=O)O[C@H]([C@@H]1O)n1ccc(=O)[nH]c1=O 2D coordinates Mol file for the small molecule Search links Involved in 611 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline H+ Identifier CHEBI:15378 Charge 1 Formula H InChIKeyhelp_outline GPRLSGONYQIRFK-UHFFFAOYSA-N SMILEShelp_outline [H+] 2D coordinates Mol file for the small molecule Search links Involved in 9,717 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
Cross-references
| RHEA:55736 | RHEA:55737 | RHEA:55738 | RHEA:55739 | |
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| Reaction direction help_outline | undefined | left-to-right | right-to-left | bidirectional |
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Publications
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Biochemical characterization of rhamnosyltransferase involved in biosynthesis of pectic rhamnogalacturonan I in plant cell wall.
Uehara Y., Tamura S., Maki Y., Yagyu K., Mizoguchi T., Tamiaki H., Imai T., Ishii T., Ohashi T., Fujiyama K., Ishimizu T.
The pectin in plant cell walls consists of three domains: homogalacturonan, rhamnogalacturonan (RG)-I, and RG-II. It is predicted that around 50 different glycosyltransferases are required for their biosynthesis. Among these, the activities of only a few glycosyltransferases have been detected bec ... >> More
The pectin in plant cell walls consists of three domains: homogalacturonan, rhamnogalacturonan (RG)-I, and RG-II. It is predicted that around 50 different glycosyltransferases are required for their biosynthesis. Among these, the activities of only a few glycosyltransferases have been detected because pectic oligosaccharides are not readily available for use as substrates. In this study, fluorogenic pyridylaminated RG-I-backbone oligosaccharides (PA-RGs) with 3-14 degrees of polymerization (DP) were prepared. Using these oligosaccharides, the activity of RG-I:rhamnosyltransferase (RRT), involved in the biosynthesis of the RG-I backbone diglycosyl repeating units (-4GalUAα1-2Rhaα1-), was detected from the microsomes of azuki bean epicotyls. RRT was found to prefer longer acceptor substrates, PA-RGs with a DP > 7, and it does not require any metal ions for its activity. RRT is located in the Golgi and endoplasmic reticulum. The activity of RRT coincided with epicotyl growth, suggesting that RG-I biosynthesis is involved in plant growth. << Less
Biochem Biophys Res Commun 486:130-136(2017) [PubMed] [EuropePMC]