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MetaCyc Compound: maltopentaose

Superclasses: all carbohydrates a carbohydrate a glycan an oligosaccharide a malto-oligosaccharide a linear malto-oligosaccharide

Chemical Formula: C30H52O26

Molecular Weight: 828.72 Daltons

Monoisotopic Molecular Weight: 828.2746818438 Daltons

maltopentaose compound structure

SMILES: C(C5(OC(OC4(C(OC(OC1(C(OC(C(C1O)O)OC2(C(OC(C(C2O)O)OC3(C(OC(C(C3O)O)O)CO))CO))CO))C(C4O)O)CO))C(C(C5O)O)O))O

InChI: InChI=1S/C30H52O26/c31-1-6-11(36)12(37)18(43)27(49-6)54-23-8(3-33)51-29(20(45)14(23)39)56-25-10(5-35)52-30(21(46)16(25)41)55-24-9(4-34)50-28(19(44)15(24)40)53-22-7(2-32)48-26(47)17(42)13(22)38/h6-47H,1-5H2/t6-,7-,8-,9-,10-,11-,12+,13-,14-,15-,16-,17-,18-,19-,20-,21-,22-,23-,24-,25-,26?,27-,28-,29-,30-/m1/s1

InChIKey: InChIKey=FTNIPWXXIGNQQF-HZWIHCTQSA-N

Unification Links: ChEBI:61952 , ChemSpider:2006584 , HMDB:HMDB12254 , Kegg Glycan:G00343 , MetaboLights:MTBLC61952 , PubChem:2724445

Standard Gibbs Free Energy of Change Formation (ΔfG in kcal/mol): -318.1018 Inferred by computational analysis [Latendresse13]

Reactions known to consume the compound:

Not in pathways:
maltopentaose + H2O → maltotetraose + D-glucopyranose

starch degradation I :
a linear malto-oligosaccharide [(glucose)n] + H2O → maltose

starch degradation II :
a linear malto-oligosaccharide [(glucose)n] + H2O → a linear malto-oligosaccharide [(glucose)n-2] + maltose

Reactions known to produce the compound:

Not in pathways:
maltohexaose + H2O → maltopentaose + α-D-glucose

starch degradation I :
starch → a linear malto-oligosaccharide

starch degradation II :
an exposed unphosphorylated, (α-1,6)-branched malto-oligosaccharide tail on amylopectin[chloroplast stroma] + n H2O[chloroplast stroma] → amylopectin[chloroplast stroma] + n a linear malto-oligosaccharide[chloroplast stroma]

Not in pathways:
a long-linear glucan + n H2O → a linear malto-oligosaccharide

starch biosynthesis :
n a (1,6)-α-D-glucosyl-(1,4)-α-glucan highly branched[chloroplast stroma] + n H2O[chloroplast stroma] → n a malto-oligosaccharide[chloroplast stroma] + n (1,6)-α-D-glucosyl-(1,4)-α-glucan moderately branched[chloroplast stroma]

Not in pathways:
keratan sulfate + H2O → n an oligosaccharide
blood group substance B + H2O → n an oligosaccharide
blood group substance A + H2O → n an oligosaccharide
a sialyloligosaccharide + H2O → an oligosaccharide + N-acetylneuraminate
a 1,2-β-D-glucan + H2O → n an oligosaccharide
a fucoidan + H2O → fucose + a fucose sulfate + an oligosaccharide

In Reactions of unknown directionality:

Not in pathways:
maltohexaose + phosphate = maltopentaose + α-D-glucopyranose 1-phosphate
maltohexaose + β-D-glucopyranose = maltopentaose + maltose
maltopentaose + phosphate = maltotetraose + α-D-glucopyranose 1-phosphate
maltopentaose + D-glucopyranose = maltotetraose + maltose

Not in pathways:
a linear malto-oligosaccharide [(glucose)n] + phosphate = a linear malto-oligosaccharide [(glucose)n-1] + α-D-glucopyranose 1-phosphate

In Transport reactions:
an oligosaccharide[extracellular space] + ATP + H2O ↔ an oligosaccharide[cytosol] + ADP + phosphate

This compound has been characterized as an alternative substrate of the following enzymes: maltose ABC transporter , 4-α-glucanotransferase , maltooligosyl-trahalose synthase


References

Latendresse13: Latendresse M. (2013). "Computing Gibbs Free Energy of Compounds and Reactions in MetaCyc."


Report Errors or Provide Feedback
Please cite the following article in publications resulting from the use of MetaCyc: Caspi et al, Nucleic Acids Research 42:D459-D471 2014
Page generated by SRI International Pathway Tools version 19.0 on Sun Aug 30, 2015, biocyc13.