Biosynthesis of a galactose- and galacturonic acid-containing polysaccharide in Rhizobium meliloti

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Previous work showed that two different strains derived from a culture of Rhizobium meliloti 102F51 differed with respect to phage specificity, agglutinability by alfalfa seed lectin, and synthesis of a galactose-containing polysaccharide (R.A. Ugalde, J. Handelsman, and W.J. Brill, J. Bacteriol. 16...

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Autores principales:	Ugalde, R.A., Coira, J.A., Brill, W.J.
Formato:	JOUR
Materias:	galactose galacturonic acid polysaccharide uridine diphosphate galactose uridine diphosphate glucuronic acid article nonhuman priority journal Sinorhizobium meliloti Medicago sativa Rhizobium Scophthalmus rhombus
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_00219193_v168_n1_p270_Ugalde
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_00219193_v168_n1_p270_Ugalde
record_format	dspace
spelling	todo:paper_00219193_v168_n1_p270_Ugalde2023-10-03T14:22:43Z Biosynthesis of a galactose- and galacturonic acid-containing polysaccharide in Rhizobium meliloti Ugalde, R.A. Coira, J.A. Brill, W.J. galactose galacturonic acid polysaccharide uridine diphosphate galactose uridine diphosphate glucuronic acid article nonhuman priority journal Sinorhizobium meliloti Medicago sativa Rhizobium Scophthalmus rhombus Sinorhizobium meliloti Previous work showed that two different strains derived from a culture of Rhizobium meliloti 102F51 differed with respect to phage specificity, agglutinability by alfalfa seed lectin, and synthesis of a galactose-containing polysaccharide (R.A. Ugalde, J. Handelsman, and W.J. Brill, J. Bacteriol. 166:148-154, 1986). Inner membranes from the more competitive strain incorporated glactose from UDP-galactose when a thermostable factor was present. This factor has now been identified as UDP-galacturonic acid. UDP-glucuronic acid was also active as a donor; however, this activity may be due to the presence of a 4-epimerase. Galacturonic acid, together with galactose, is incorporated into the reaction product, which appears to be a polysaccharide formed by several repeating units of these two monosaccharides. Partial acid hydrolysis liberates the disaccharide with galactose at the reducing end. Fil:Ugalde, R.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00219193_v168_n1_p270_Ugalde
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	galactose galacturonic acid polysaccharide uridine diphosphate galactose uridine diphosphate glucuronic acid article nonhuman priority journal Sinorhizobium meliloti Medicago sativa Rhizobium Scophthalmus rhombus Sinorhizobium meliloti
spellingShingle	galactose galacturonic acid polysaccharide uridine diphosphate galactose uridine diphosphate glucuronic acid article nonhuman priority journal Sinorhizobium meliloti Medicago sativa Rhizobium Scophthalmus rhombus Sinorhizobium meliloti Ugalde, R.A. Coira, J.A. Brill, W.J. Biosynthesis of a galactose- and galacturonic acid-containing polysaccharide in Rhizobium meliloti
topic_facet	galactose galacturonic acid polysaccharide uridine diphosphate galactose uridine diphosphate glucuronic acid article nonhuman priority journal Sinorhizobium meliloti Medicago sativa Rhizobium Scophthalmus rhombus Sinorhizobium meliloti
description	Previous work showed that two different strains derived from a culture of Rhizobium meliloti 102F51 differed with respect to phage specificity, agglutinability by alfalfa seed lectin, and synthesis of a galactose-containing polysaccharide (R.A. Ugalde, J. Handelsman, and W.J. Brill, J. Bacteriol. 166:148-154, 1986). Inner membranes from the more competitive strain incorporated glactose from UDP-galactose when a thermostable factor was present. This factor has now been identified as UDP-galacturonic acid. UDP-glucuronic acid was also active as a donor; however, this activity may be due to the presence of a 4-epimerase. Galacturonic acid, together with galactose, is incorporated into the reaction product, which appears to be a polysaccharide formed by several repeating units of these two monosaccharides. Partial acid hydrolysis liberates the disaccharide with galactose at the reducing end.
format	JOUR
author	Ugalde, R.A. Coira, J.A. Brill, W.J.
author_facet	Ugalde, R.A. Coira, J.A. Brill, W.J.
author_sort	Ugalde, R.A.
title	Biosynthesis of a galactose- and galacturonic acid-containing polysaccharide in Rhizobium meliloti
title_short	Biosynthesis of a galactose- and galacturonic acid-containing polysaccharide in Rhizobium meliloti
title_full	Biosynthesis of a galactose- and galacturonic acid-containing polysaccharide in Rhizobium meliloti
title_fullStr	Biosynthesis of a galactose- and galacturonic acid-containing polysaccharide in Rhizobium meliloti
title_full_unstemmed	Biosynthesis of a galactose- and galacturonic acid-containing polysaccharide in Rhizobium meliloti
title_sort	biosynthesis of a galactose- and galacturonic acid-containing polysaccharide in rhizobium meliloti
url	http://hdl.handle.net/20.500.12110/paper_00219193_v168_n1_p270_Ugalde
work_keys_str_mv	AT ugaldera biosynthesisofagalactoseandgalacturonicacidcontainingpolysaccharideinrhizobiummeliloti AT coiraja biosynthesisofagalactoseandgalacturonicacidcontainingpolysaccharideinrhizobiummeliloti AT brillwj biosynthesisofagalactoseandgalacturonicacidcontainingpolysaccharideinrhizobiummeliloti
_version_	1807318873304727552

Biosynthesis of a galactose- and galacturonic acid-containing polysaccharide in Rhizobium meliloti

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