title: Branching of the galacturonan backbone of comaruman, a pectin from the marsh cinquefoil Comarum palustre L.
abstract: Galacturonan, the main constituent of the backbone (core) of the comaruman macromolecule, a pectin from the marsh cinquefoil Comarum palustre L., was obtained on partial acid hydrolysis of the pectin. Using atomic force microscopy and methylation analysis of the galacturonan, the backbone of the comaruman macromolecule was shown to contain branches as side chains consisting of alpha-1,4-linked residues of D-galactopyranosyl uronic acid attached to the 2- and 3-positions of the galacturonic acid residues of the core, in addition to linear regions of alpha-1,4-D-galacturonan. A few side chains appear to attach to 2,3-positions of the D-galacturonic acid residues.
authors.affiliation: Institute of Physiology, Komi Science Center, The Urals Branch of the Russian Academy of Sciences, Syktyvkar, Russia.
authors.forename: R G
authors.initials: RG
authors.lastname: Ovodova
authors.forename: S V
authors.initials: SV
authors.lastname: Popov
authors.forename: O A
authors.initials: OA
authors.lastname: Bushneva
authors.forename: V V
authors.initials: VV
authors.lastname: Golovchenko
authors.forename: A O
authors.initials: AO
authors.lastname: Chizhov
authors.forename: D V
authors.initials: DV
authors.lastname: Klinov
authors.forename: Yu S
authors.initials: YS
authors.lastname: Ovodov
mesh_terms: D002236:Carbohydrate Conformation; D005690:Galactose / Q000032:analysis; D006603:Hexuronic Acids / Q000032:analysis / Q000737:chemistry; D006868:Hydrolysis; D008745:Methylation; D018625:Microscopy, Atomic Force; D010368:Pectins / Q000032:analysis / Q000737:chemistry* / Q000302:isolation & purification; D011134:Polysaccharides / Q000032:analysis / Q000737:chemistry; D031987:Potentilla / Q000737:chemistry*
chemical_list: D006603:Hexuronic Acids; D011134:Polysaccharides; C501873:comaruman; C007819:galacturonic acid; D010368:Pectins; C003181:polygalacturonic acid; D005690:Galactose