Found 2 structures.
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1. Compound ID: 21820
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a-L-Fucp-(1-4)-+ a-D-Galp-(1-2)-+
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-6)-a-D-Galp-(1-6)-a-D-Galp-(1-6)-b-D-Glcp-(1-4)-a-D-Manp-(1-3)-b-D-Glcp-(1-3)-b-D-Glcp-(1-6)-a-D-Galp-(1-6)-b-D-Glcp-(1- |
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Structure type: polymer chemical repeating unit
; 179000
Contained glycoepitopes: IEDB_130701,IEDB_134624,IEDB_136045,IEDB_136906,IEDB_137472,IEDB_140529,IEDB_141794,IEDB_142488,IEDB_142489,IEDB_144562,IEDB_144983,IEDB_146664,IEDB_151528,IEDB_152206,IEDB_152214,IEDB_153543,IEDB_167069,IEDB_174333,IEDB_190606,IEDB_983930,IEDB_983931,SB_163,SB_192,SB_44,SB_67,SB_7,SB_72,SB_86
The structure is contained in the following publication(s):
- Article ID: 8802
Pattanayak M, Maity P, Samanta S, Sen IK, Manna DK, Nandi AK, Ghosh S, Acharya K, Islam SS "Studies on structure and antioxidant properties of a heteroglycan isolated from wild edible mushroom Lentinus sajor-caju" -
International Journal of Biological Macromolecules 107 (2018) 322-331
A water-soluble heteroglycan (PS-I) isolated from the aqueous extract of a wild edible mushroom Lentinus sajor-caju showed average molecular weight ∼1.79×10^5Da. The structure of the polysaccharide was determined using chemical and 1D/2D NMR experiments. Acid hydrolysis indicated the presence of d-glucose, d-galactose, d-mannose, and l-fucose in a molar ratio of nearly 4:4:1:1 respectively. The presence of terminal Fucp, terminal Galp, (1→3)-Glcp, (1→6)-Galp, (1→6)-Glcp, (1→4,6)-Galp, and (1→2,4)-Manp moieties were established from methylation analysis. The chemical and NMR analyses indicated that the PS-I was a heteroglycan composed of a repeating unit with backbone chain of three (1→6)-α-d-galactopyranosyl residues, two (1→6)-β-D-glucopyranosyl residues, one (1→4)-α-d-mannopyranosyl residue, and two (1→3)-β-D-glucopyranosyl residues where one (1→6)-α-d-galactopyranosyl residue was branched at O-4 position with terminal α-l-fucopyranosyl residue and (1→4)-α-d-mannopyranosyl residue was branched at O-2 position with terminal α-d-galactopyranosyl residue and the structure was proposed as; The PS-I is a moderate antioxidant compound which showed DPPH radical scavenging activity, hydroxyl radical scavenging activity, ABTS radical scavenging property, reducing power, and ferrous ion chelating ability.
heteroglycan, antioxidant activities, Lentinus sajor-caju
NCBI PubMed ID: 28867230Publication DOI: 10.1016/j.ijbiomac.2017.08.163Journal NLM ID: 7909578Publisher: Butterworth-Heinemann
Correspondence: Islam SS
Institutions: Department of Chemistry and Chemical Technology, Vidyasagar University, Midnapore, India, Molecular and Applied Mycology and Plant Pathology Laboratory, Department of Botany, University of Calcutta, Kolkata, India
Methods: 13C NMR, 1H NMR, methylation, periodate oxidation, GLC-MS, gel filtration, Smith degradation, determination of absolute configuration, statistical analysis, ROESY, TOCSY, hydrolysis, antioxidant activities, centrifugation, COSY, NOESY, HSQC
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2. Compound ID: 21821
Structure type: oligomer
Contained glycoepitopes: IEDB_130701,IEDB_142488,IEDB_144983,IEDB_146664,IEDB_152206,IEDB_153543,IEDB_983930,IEDB_983931,SB_192,SB_44,SB_67,SB_72
The structure is contained in the following publication(s):
- Article ID: 8802
Pattanayak M, Maity P, Samanta S, Sen IK, Manna DK, Nandi AK, Ghosh S, Acharya K, Islam SS "Studies on structure and antioxidant properties of a heteroglycan isolated from wild edible mushroom Lentinus sajor-caju" -
International Journal of Biological Macromolecules 107 (2018) 322-331
A water-soluble heteroglycan (PS-I) isolated from the aqueous extract of a wild edible mushroom Lentinus sajor-caju showed average molecular weight ∼1.79×10^5Da. The structure of the polysaccharide was determined using chemical and 1D/2D NMR experiments. Acid hydrolysis indicated the presence of d-glucose, d-galactose, d-mannose, and l-fucose in a molar ratio of nearly 4:4:1:1 respectively. The presence of terminal Fucp, terminal Galp, (1→3)-Glcp, (1→6)-Galp, (1→6)-Glcp, (1→4,6)-Galp, and (1→2,4)-Manp moieties were established from methylation analysis. The chemical and NMR analyses indicated that the PS-I was a heteroglycan composed of a repeating unit with backbone chain of three (1→6)-α-d-galactopyranosyl residues, two (1→6)-β-D-glucopyranosyl residues, one (1→4)-α-d-mannopyranosyl residue, and two (1→3)-β-D-glucopyranosyl residues where one (1→6)-α-d-galactopyranosyl residue was branched at O-4 position with terminal α-l-fucopyranosyl residue and (1→4)-α-d-mannopyranosyl residue was branched at O-2 position with terminal α-d-galactopyranosyl residue and the structure was proposed as; The PS-I is a moderate antioxidant compound which showed DPPH radical scavenging activity, hydroxyl radical scavenging activity, ABTS radical scavenging property, reducing power, and ferrous ion chelating ability.
heteroglycan, antioxidant activities, Lentinus sajor-caju
NCBI PubMed ID: 28867230Publication DOI: 10.1016/j.ijbiomac.2017.08.163Journal NLM ID: 7909578Publisher: Butterworth-Heinemann
Correspondence: Islam SS
Institutions: Department of Chemistry and Chemical Technology, Vidyasagar University, Midnapore, India, Molecular and Applied Mycology and Plant Pathology Laboratory, Department of Botany, University of Calcutta, Kolkata, India
Methods: 13C NMR, 1H NMR, methylation, periodate oxidation, GLC-MS, gel filtration, Smith degradation, determination of absolute configuration, statistical analysis, ROESY, TOCSY, hydrolysis, antioxidant activities, centrifugation, COSY, NOESY, HSQC
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