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Banerjee A, Mohammed Breig SJ, Gomez A, Sanchez-Arevalo I, Gonzalez-Faune P, Sarkar S, Bandopadhyay R, Vuree S, Cornejo J, Tapia J, Bravo G, Cabrera-Barjas G
Optimization and Characterization of a Novel Exopolysaccharide from Bacillus haynesii CamB6 for Food Applications
Biomolecules 12(6) (2022)
834
Bacillus haynesii CamB6
(Ancestor NCBI TaxID 1925021,
species name lookup)
Taxonomic group: bacteria / Firmicutes
(Phylum: Firmicutes)
The structure was elucidated in this paperNCBI PubMed ID: 35740959Publication DOI: 10.3390/biom12060834Journal NLM ID: 101596414Publisher: Basel, Switzerland: MDPI
Correspondence: A. Banerjee <abanerjee
ucm.cl>; G. Cabrera-Barjas <g.cabrera
udt.cl>
Institutions: Centro de Investigacion de Estudios Avanzados del Maule, Vicerrectoria de Investigacion y Posgrado, Universidad Catolica del Maule, Talca 3466706, Chile, Centro de Biotecnologia de los Recursos Naturales (CENBio), Facultad de Ciencias Agrarias y Forestales, Universidad Catolica del Maule, Talca 3466706, Chile, Department of Biochemical Engineering, Al-khawarizmi Collage of Engineering, University of Baghdad, Baghdad 10011, Iraq, Escuela de Ingenieria en Biotecnologia, Facultad de Ciencias Agrarias y Forestales, Universidad Catolica del Maule, Talca 3466706, Chile, UGC Center of Advanced Study, Department of Botany, The University of Burdwan, Burdwan 713104, India, Department of Biotechnology, School of Bioengineering and Biosciences, Lovely Professional University, Phagwara 144411, India, Institute of Chemistry and Natural Resources, Universidad de Talca, Talca 3460000, Chile, Unidad de Desarrollo Tecnologico (UDT), Universidad de Concepcion, Av. Cordillera 2634, Parque Industrial Coronel, Coronel 3349001, Chile
Extremophilic microorganisms often produce novel bioactive compounds to survive under harsh environmental conditions. Exopolysaccharides (EPSs), a constitutive part of bacterial biofilm, are functional biopolymers that act as a protecting sheath to the extremophilic bacteria and are of high industrial value. In this study, we elucidate a new EPS produced by thermophilic Bacillus haynesii CamB6 from a slightly acidic (pH 5.82) Campanario hot spring (56.4 °C) located in the Central Andean Mountains of Chile. Physicochemical properties of the EPS were characterized by different techniques: Scanning electron microscopy- energy dispersive X-ray spectroscopy (SEM-EDS), Atomic Force Microscopy (AFM), High-Performance Liquid Chromatography (HPLC), Gel permeation chromatography (GPC), Fourier Transform Infrared Spectroscopy (FTIR), 1D and 2D Nuclear Magnetic Resonance (NMR), and Thermogravimetric analysis (TGA). The EPS demonstrated amorphous surface roughness composed of evenly distributed macromolecular lumps. GPC and HPLC analysis showed that the EPS is a low molecular weight heteropolymer composed of mannose (66%), glucose (20%), and galactose (14%). FTIR analysis demonstrated the polysaccharide nature (-OH groups, Acetyl groups, and pyranosic ring structure) and the presence of different glycosidic linkages among sugar residues, which was further confirmed by NMR spectroscopic analyses. Moreover, D-mannose α-(1→2) and α-(1→4) linkages prevail in the CamB6 EPS structure. TGA revealed the high thermal stability (240 °C) of the polysaccharide. The functional properties of the EPS were evaluated for food industry applications, specifically as an antioxidant and for its emulsification, water-holding (WHC), oil-holding (OHC), and flocculation capacities. The results suggest that the study EPS can be a useful additive for the food-processing industry.
exopolysaccharide, Bacillus, Emulsification, Antioxidants, Food Industry, additive, flocculation, oil holding, water holding
Structure type: fragment of a bigger structure
Location inside paper: Scheme 1
Compound class: EPS
Contained glycoepitopes: IEDB_130701,IEDB_136104,IEDB_143632,IEDB_144983,IEDB_152206,IEDB_983930,SB_136,SB_196,SB_44,SB_67,SB_72
Methods: 13C NMR, 1H NMR, NMR-2D, sugar analysis, FTIR, HPLC, GPC, AFM, TGA, WHC, OHC, SEM-EDS
Comments, role: major fragment of the EPS backbone
NCBI Taxonomy refs (TaxIDs): 1925021
Show glycosyltransferases
There is only one chemically distinct structure:
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Haddar A, Hamed M, Bouallegue A, Bastos R, Coelho E, Coimbra MA
Structural elucidation and interfacial properties of a levan isolated from Bacillus mojavensis
Food Chemistry 343 (2021)
128456
|
b-D-Fruf-(2-1)-+
|
-6)-b-D-Fruf-(2-6)-{{{-b-D-Fruf-(2-6)-}}}/n=6-9/-b-D-Fruf-(2- |
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Bacillus mojavensis
(NCBI TaxID 72360,
species name lookup)
Taxonomic group: bacteria / Firmicutes
(Phylum: Firmicutes)
The structure was elucidated in this paperNCBI PubMed ID: 33139122Publication DOI: 10.1016/j.foodchem.2020.128456Journal NLM ID: 7702639Publisher: Elsevier Applied Science Publishers
Correspondence: Anissa Haddar <anissa_ing
yahoo.fr>
Institutions: LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, Aveiro, Portugal, Laboratory of Plants Improvement and Valorization of Agroressources, National School of Engineering of Sfax (ENIS), University of Sfax, Sfax 3038, Tunisia, Common Service Unit of Bioreactor Coupled with an Ultrafilter, National School of Engineering of Sfax (ENIS), University of Sfax, Sfax 3038, Tunisia
A strain with high exopolysaccharide (EPS) production was isolated from soil and identified as Bacillus mojavensis based on the 16S rRNA gene sequencing and biochemical properties. The EPS produced simultaneously with the growth phase reached a maximum of 22 g/L after attaining a stationary phase with sucrose used as sole carbon source. B. mojavensis EPS (BM-EPS) was recovered, fractionated by ethanol precipitation and analysed by NMR and methylation analyses. The BM-EPS was found to be composed of (β2→6)-Fruf residues, characteristic of a levan, with an average molecular weight of 2.3 MDa. A homogeneous micro-porous and rough structure matrix was observed by SEM of the freeze-dried powdered sample. A concentration-dependent water-soluble nature was observed, with good water (5.3 g/g) and oil (36 g/g) holding capacities. The levan displayed good emulsification activity with excellent stability against food grade oil, thus favoring it as a promising emulsifying agent to food industries.
methylation analysis, exopolysaccharide, levan, Bacillus mojavensis, interfacial properties
Structure type: structural motif or average structure ; 2300000
Location inside paper: graphical abstract, table 1, p. 128456-6
Trivial name: levan-type EPS
Compound class: EPS
Contained glycoepitopes: IEDB_923066
Methods: 13C NMR, methylation, GC-MS, composition analysis, statistical analysis, reduction with NaBH4, HPLC-SEC, SEM, emulsifying activity determination, WHC, OHC, taxonomy studies
Comments, role: levan can be occasionally (8–11 mol%) branched through (β2→1) linkages.
NCBI Taxonomy refs (TaxIDs): 72360
Show glycosyltransferases
NMR conditions: in D2O at 298(C) K
[as TSV]
13C NMR data:
Linkage Residue C1 C2 C3 C4 C5 C6
6 bDFruf 60.02 105.65 76.46 75.91 80.21 64.61
6,6,1 bDFruf
6,6 bDFruf
bDFruf
1H NMR data:
missing...
13C NMR data:
| Linkage | Residue | C1 | C2 | C3 | C4 | C5 | C6 |
|---|
| 6 | bDFruf | 60.02 | 105.65 | 76.46 | 75.91 | 80.21 | 64.61 |
| 6,6,1 | bDFruf | |
| 6,6 | bDFruf | |
| | bDFruf | |
|
There is only one chemically distinct structure:
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Gan L, Li X, Wang H, Peng B, Tian Y
Structural characterization and functional evaluation of a novel exopolysaccharide from the moderate halophile Gracilibacillus sp. SCU50
International Journal of Biological Macromolecules 154 (2020)
1140-1148
|
SUG-(1-6)-a-D-Manp-(1-3)-+
|
SUG-(1-6)-a-D-Manp-(1-2)-+ |
| |
a-D-Manp-(1-2)-+ a-D-Manp-(1-3)-+ | |
| | | |
a-D-Manp-(1-6)-{{{-a-D-Manp-(1-6)-}}}a-D-Manp-(1-6)-a-D-Manp-(1-6)-a-D-Manp |
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Gracilibacillus sp. SCU50
(NCBI TaxID 2663022,
species name lookup)
Taxonomic group: bacteria / Firmicutes
(Phylum: Firmicutes)
The structure was elucidated in this paperNCBI PubMed ID: 31756464Publication DOI: 10.1016/j.ijbiomac.2019.11.143Journal NLM ID: 7909578Publisher: Butterworth-Heinemann
Correspondence: yqtian
scu.edu.cn
Institutions: College of Biomass Science and Engineering, Sichuan University, Chengdu 610065, PR China, Key Laboratory of Leather Chemistry and Engineering (Sichuan University), Ministry of Education, Chengdu 610065, PR China
A novel exopolysaccharide (named mhEPS) with a molecular weight of 5.881 × 104 g/mol was isolated from Gracilibacillus sp. SCU50's high-salt fermentation broth by ethanol precipitation, anion-exchange and gel-filtration chromatography before being structurally characterized and functionally evaluated. mhEPS consists of mannose, galactose, glucose and fucose in a molar ratio of 90.81:5.76:2.22:1.21. The backbone of mhEPS was (1→3,6)-linked α-D-mannopyranose residues, branched by single α-D-mannopyranose units attached to the main chain at C-2 position of every residue. The water solubility index, water holding capacity and oil holding capacity of mhEPS were 93.53, 14.89 and 1023.34%, respectively. mhEPS showed to possess good emulsifying activity against all tested substrates, and it could potentially increase the high-salinity tolerance of strain SCU50. The lack of toxicity of mhEPS was also preliminarily determined. Due to the functional properties of mhEPS, it is a good candidate to develop as an active ingredient in food, cosmetics and detergents.
exopolysaccharide, Structural characterization, functional evaluation, Gracilibacillus sp.
Structure type: structural motif or average structure ; 58810
Location inside paper: p.1147, Fig.5
Compound class: EPS
Contained glycoepitopes: IEDB_130701,IEDB_136104,IEDB_140116,IEDB_141793,IEDB_141828,IEDB_141829,IEDB_141831,IEDB_143632,IEDB_144983,IEDB_152206,IEDB_153220,IEDB_153762,IEDB_153763,IEDB_164174,IEDB_76933,IEDB_857732,IEDB_857733,IEDB_857734,IEDB_857735,IEDB_983930,SB_136,SB_191,SB_196,SB_197,SB_198,SB_44,SB_67,SB_72,SB_73,SB_77
Methods: gel filtration, 13C NMR, 1H NMR, NMR-2D, GC-MS, sugar analysis, FTIR, genetic methods, SEM, emulsifying activity, HPSEC-RI-MALLS, WSI, WHC, OHC
Comments, role: One of the possible chemical structures of EPS. Published NMR chemical shifts of #6,6,3_aDManp (C4 and C5) and #6,6,6,2_aDManp (C4 and C5) that seemed erroneously interchanged in the published assignment were swapped by CSDB staff.
NCBI Taxonomy refs (TaxIDs): 2663022
Show glycosyltransferases
NMR conditions: in D2O at 298 K
[as TSV]
13C NMR data:
Linkage Residue C1 C2 C3 C4 C5 C6
6,6,6,2 aDManp 103.97 71.60 71.74 67.93 74.82 62.52
6,6,6 aDManp 102.06 79.93 71.89 67.5 68.21 68.43
3,6 SUG
3 aDManp 103.69 71.14 71.52 67.47 67.87 68.23
6,2,6 SUG
6,2 aDManp 103.69 71.74 71.52 67.47 67.87 68.23
6,6,6,6 aDManp
6,6,3 aDManp 103.97 71.60 71.74 67.93 74.82 62.52
6,6 aDManp 99.74 71.22 79.40 67.33 ? ?
6 aDManp 102.06 79.93 71.89 67.5 68.21 68.43
aDManp 99.74 71.22 79.40 67.33 ? ?
1H NMR data:
Linkage Residue H1 H2 H3 H4 H5 H6
6,6,6,2 aDManp 5.20 4.11 3.88 3.80 3.78 3.77-3.79
6,6,6 aDManp 5.34 4.16 3.94 3.81 3.70 3.68-3.72
3,6 SUG
3 aDManp 5.08 4.26 3.99 3.84 3.73 3.75
6,2,6 SUG
6,2 aDManp 5.17 4.26 3.99 3.84 3.73 3.75
6,6,6,6 aDManp
6,6,3 aDManp 5.10 4.10 3.96 3.80 3.78 3.77-3.79
6,6 aDManp 5.14 4.07 4.00 3.82 ? ?
6 aDManp 5.34 4.16 3.94 3.81 3.70 3.68-3.72
aDManp 5.14 4.07 4.00 3.82 ? ?
1H/13C HSQC data:
Linkage Residue C1/H1 C2/H2 C3/H3 C4/H4 C5/H5 C6/H6
6,6,6,2 aDManp 103.97/5.20 71.60/4.11 71.74/3.88 67.93/3.80 74.82/3.78 62.52/3.77-3.79
6,6,6 aDManp 102.06/5.34 79.93/4.16 71.89/3.94 67.5/3.81 68.21/3.70 68.43/3.68-3.72
3,6 SUG
3 aDManp 103.69/5.08 71.14/4.26 71.52/3.99 67.47/3.84 67.87/3.73 68.23/3.75
6,2,6 SUG
6,2 aDManp 103.69/5.17 71.74/4.26 71.52/3.99 67.47/3.84 67.87/3.73 68.23/3.75
6,6,6,6 aDManp
6,6,3 aDManp 103.97/5.10 71.60/4.10 71.74/3.96 67.93/3.80 74.82/3.78 62.52/3.77-3.79
6,6 aDManp 99.74/5.14 71.22/4.07 79.40/4.00 67.33/3.82 ?/? ?/?
6 aDManp 102.06/5.34 79.93/4.16 71.89/3.94 67.5/3.81 68.21/3.70 68.43/3.68-3.72
aDManp 99.74/5.14 71.22/4.07 79.40/4.00 67.33/3.82 ?/? ?/?
1H NMR data:
| Linkage | Residue | H1 | H2 | H3 | H4 | H5 | H6 |
|---|
| 6,6,6,2 | aDManp | 5.20 | 4.11 | 3.88 | 3.80 | 3.78 | 3.77
3.79 |
| 6,6,6 | aDManp | 5.34 | 4.16 | 3.94 | 3.81 | 3.70 | 3.68
3.72 |
| 3,6 | SUG | |
| 3 | aDManp | 5.08 | 4.26 | 3.99 | 3.84 | 3.73 | 3.75 |
| 6,2,6 | SUG | |
| 6,2 | aDManp | 5.17 | 4.26 | 3.99 | 3.84 | 3.73 | 3.75 |
| 6,6,6,6 | aDManp | |
| 6,6,3 | aDManp | 5.10 | 4.10 | 3.96 | 3.80 | 3.78 | 3.77
3.79 |
| 6,6 | aDManp | 5.14 | 4.07 | 4.00 | 3.82 | ? | ? |
| 6 | aDManp | 5.34 | 4.16 | 3.94 | 3.81 | 3.70 | 3.68
3.72 |
| | aDManp | 5.14 | 4.07 | 4.00 | 3.82 | ? | ? |
|
13C NMR data:
| Linkage | Residue | C1 | C2 | C3 | C4 | C5 | C6 |
|---|
| 6,6,6,2 | aDManp | 103.97 | 71.60 | 71.74 | 67.93 | 74.82 | 62.52 |
| 6,6,6 | aDManp | 102.06 | 79.93 | 71.89 | 67.5 | 68.21 | 68.43 |
| 3,6 | SUG | |
| 3 | aDManp | 103.69 | 71.14 | 71.52 | 67.47 | 67.87 | 68.23 |
| 6,2,6 | SUG | |
| 6,2 | aDManp | 103.69 | 71.74 | 71.52 | 67.47 | 67.87 | 68.23 |
| 6,6,6,6 | aDManp | |
| 6,6,3 | aDManp | 103.97 | 71.60 | 71.74 | 67.93 | 74.82 | 62.52 |
| 6,6 | aDManp | 99.74 | 71.22 | 79.40 | 67.33 | ? | ? |
| 6 | aDManp | 102.06 | 79.93 | 71.89 | 67.5 | 68.21 | 68.43 |
| | aDManp | 99.74 | 71.22 | 79.40 | 67.33 | ? | ? |
|
The spectrum also has 4 signals at unknown positions (not plotted). |
There is only one chemically distinct structure:
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Gan L, Li X, Zhang H, Zhang R, Wang H, Xu Z, Peng B, Tian Y
Preparation, characterization and functional properties of a novel exopolysaccharide produced by the halophilic strain Halomonas saliphila LCB169T
International Journal of Biological Macromolecules 156 (2020)
372-380
|
SUG-(1-6)-b-D-Glcp-(1-6)-+
|
a-D-Manp-(1-2)-a-D-Manp-(1-2)-+ |
| |
a-D-Manp-(1-6)-+ | |
| | |
-2)-{{{-a-D-Manp-(1-2)-a-D-Manp-(1-2)-a-D-Manp-(1-6)-a-D-Manp-(1-2)-}}}a-D-Manp-(1-6)-a-D-Manp-(1-2)-a-D-Manp-(1- |
Show graphically |
Halomonas saliphila LCB169(T)
(Ancestor NCBI TaxID 1848458,
species name lookup)
Taxonomic group: bacteria / Proteobacteria
(Phylum: Proteobacteria)
The structure was elucidated in this paperNCBI PubMed ID: 32289411Publication DOI: 10.1016/j.ijbiomac.2020.04.062Journal NLM ID: 7909578Publisher: Butterworth-Heinemann
Correspondence: pengbiyu
scu.edu.cn; yqtian
scu.edu.cn
Institutions: College of Biomass Science and Engineering, Sichuan University, Chengdu 610065, PR China, Key Laboratory of Leather Chemistry and Engineering (Sichuan University), Ministry of Education, Chengdu 610065, PR China
A novel exopolysaccharide, designated hsEPS, was successfully prepared from the high-salt-fermented broth of a novel species Halomonas saliphila LCB169T by ethanol precipitation, anion-exchange and gel-filtration chromatography, and its structure was well-characterized by means of chemical and spectral analyses. Results showed that hsEPS was primarily composed of mannose and glucose with a relative weight-average molecular weight of 5.133 × 104 g/mol. It was deduced that the major backbone contained (1→2)-linked α-D-Manp and (1→6)-linked α-D-Manp with branches substituted at C-2 by T-α-D-Manp and at C-6 by the fragment of T-α-D-Manp-(1→2)-α-D-Manp-(1→. A sheet-like structure was observed under high magnification. The water solubility index, water holding capacity, oil holding capacity and foaming capacity of hsEPS were 98.0, 19.3, 1386.7 and 82.2%, respectively. It also exhibited outstanding emulsifying activity against all tested edible oils. Together, the resulted data indicated that hsEPS might serve as an active ingredient in food, cosmetics and detergents.
structure, exopolysaccharide, halophiles, Functional properties, Halomonas saliphila
Structure type: structural motif or average structure ; 51330
Location inside paper: p.378, Fig.4, table 3
Compound class: EPS
Contained glycoepitopes: IEDB_130701,IEDB_136104,IEDB_140116,IEDB_141793,IEDB_141795,IEDB_141829,IEDB_141830,IEDB_141832,IEDB_141833,IEDB_141834,IEDB_142488,IEDB_143632,IEDB_144983,IEDB_146664,IEDB_152206,IEDB_153220,IEDB_164480,IEDB_76933,IEDB_983930,IEDB_983931,SB_136,SB_191,SB_192,SB_196,SB_198,SB_44,SB_67,SB_72
Methods: gel filtration, 13C NMR, 1H NMR, NMR-2D, methylation, GC-MS, sugar analysis, FTIR, HPAEC-PAD, SEM, HPSEC-RI-MALLS, WSI, WHC, OHC
Comments, role: Putative structure of hsEPS produced by H. saliphila LCB169T
NCBI Taxonomy refs (TaxIDs): 1848458
Show glycosyltransferases
NMR conditions: in D2O at 298 K
[as TSV]
13C NMR data:
Linkage Residue C1 C2 C3 C4 C5 C6
2,6,2,6,2,2 aDManp 102.06 79.94 71.52 67.88 74.70 62.61
2,6,2,6,2,6 aDManp 103.69 71.58 71.87 68.41 74.82 62.52
2,6,2,6,2 aDManp 99.73 80.21 71.73 68.36 74.89 68.44
2,6,2,6 aDManp 102.06 79.94 71.52 67.88 74.70 62.61
2,6,2,2,2 aDManp 103.69 71.58 71.87 68.41 74.82 62.52
2,6,2,2 aDManp 102.06 79.94 71.52 67.88 74.70 62.61
2,6,2 aDManp 99.73 80.21 71.73 68.36 74.89 68.44
2,6,6,6 SUG
2,6,6 bDGlcp 104.52 74.58 77.11 69.65 74.42 67.71
2,6 aDManp 99.73 80.21 71.73 68.36 74.89 68.44
2 aDManp 103.60 71.14 70.36 67.94 74.68 68.6
aDManp
1H NMR data:
Linkage Residue H1 H2 H3 H4 H5 H6
2,6,2,6,2,2 aDManp 5.33 4.16 4.07 3.79 3.93 3.68-3.80
2,6,2,6,2,6 aDManp 5.18 4.11 3.92 3.69 3.83 3.70-3.95
2,6,2,6,2 aDManp 5.13 4.06 3.81 3.70 3.84 3.73-3.91
2,6,2,6 aDManp 5.33 4.16 4.07 3.79 3.93 3.68-3.80
2,6,2,2,2 aDManp 5.09 4.11 3.92 3.69 3.83 3.70-3.95
2,6,2,2 aDManp 5.33 4.16 4.07 3.79 3.93 3.68-3.80
2,6,2 aDManp 5.13 4.06 3.81 3.70 3.84 3.73-3.91
2,6,6,6 SUG
2,6,6 bDGlcp 4.56 3.37 3.53 3.68 3.79 3.61-3.99
2,6 aDManp 5.16 4.08 3.81 3.70 3.84 3.73-3.91
2 aDManp 5.08 4.26 3.90 3.78 3.96 3.76-3.83
aDManp
1H/13C HSQC data:
Linkage Residue C1/H1 C2/H2 C3/H3 C4/H4 C5/H5 C6/H6
2,6,2,6,2,2 aDManp 102.06/5.33 79.94/4.16 71.52/4.07 67.88/3.79 74.70/3.93 62.61/3.68-3.80
2,6,2,6,2,6 aDManp 103.69/5.18 71.58/4.11 71.87/3.92 68.41/3.69 74.82/3.83 62.52/3.70-3.95
2,6,2,6,2 aDManp 99.73/5.13 80.21/4.06 71.73/3.81 68.36/3.70 74.89/3.84 68.44/3.73-3.91
2,6,2,6 aDManp 102.06/5.33 79.94/4.16 71.52/4.07 67.88/3.79 74.70/3.93 62.61/3.68-3.80
2,6,2,2,2 aDManp 103.69/5.09 71.58/4.11 71.87/3.92 68.41/3.69 74.82/3.83 62.52/3.70-3.95
2,6,2,2 aDManp 102.06/5.33 79.94/4.16 71.52/4.07 67.88/3.79 74.70/3.93 62.61/3.68-3.80
2,6,2 aDManp 99.73/5.13 80.21/4.06 71.73/3.81 68.36/3.70 74.89/3.84 68.44/3.73-3.91
2,6,6,6 SUG
2,6,6 bDGlcp 104.52/4.56 74.58/3.37 77.11/3.53 69.65/3.68 74.42/3.79 67.71/3.61-3.99
2,6 aDManp 99.73/5.16 80.21/4.08 71.73/3.81 68.36/3.70 74.89/3.84 68.44/3.73-3.91
2 aDManp 103.60/5.08 71.14/4.26 70.36/3.90 67.94/3.78 74.68/3.96 68.6/3.76-3.83
aDManp
1H NMR data:
| Linkage | Residue | H1 | H2 | H3 | H4 | H5 | H6 |
|---|
| 2,6,2,6,2,2 | aDManp | 5.33 | 4.16 | 4.07 | 3.79 | 3.93 | 3.68
3.80 |
| 2,6,2,6,2,6 | aDManp | 5.18 | 4.11 | 3.92 | 3.69 | 3.83 | 3.70
3.95 |
| 2,6,2,6,2 | aDManp | 5.13 | 4.06 | 3.81 | 3.70 | 3.84 | 3.73
3.91 |
| 2,6,2,6 | aDManp | 5.33 | 4.16 | 4.07 | 3.79 | 3.93 | 3.68
3.80 |
| 2,6,2,2,2 | aDManp | 5.09 | 4.11 | 3.92 | 3.69 | 3.83 | 3.70
3.95 |
| 2,6,2,2 | aDManp | 5.33 | 4.16 | 4.07 | 3.79 | 3.93 | 3.68
3.80 |
| 2,6,2 | aDManp | 5.13 | 4.06 | 3.81 | 3.70 | 3.84 | 3.73
3.91 |
| 2,6,6,6 | SUG | |
| 2,6,6 | bDGlcp | 4.56 | 3.37 | 3.53 | 3.68 | 3.79 | 3.61
3.99 |
| 2,6 | aDManp | 5.16 | 4.08 | 3.81 | 3.70 | 3.84 | 3.73
3.91 |
| 2 | aDManp | 5.08 | 4.26 | 3.90 | 3.78 | 3.96 | 3.76
3.83 |
| | aDManp | |
|
13C NMR data:
| Linkage | Residue | C1 | C2 | C3 | C4 | C5 | C6 |
|---|
| 2,6,2,6,2,2 | aDManp | 102.06 | 79.94 | 71.52 | 67.88 | 74.70 | 62.61 |
| 2,6,2,6,2,6 | aDManp | 103.69 | 71.58 | 71.87 | 68.41 | 74.82 | 62.52 |
| 2,6,2,6,2 | aDManp | 99.73 | 80.21 | 71.73 | 68.36 | 74.89 | 68.44 |
| 2,6,2,6 | aDManp | 102.06 | 79.94 | 71.52 | 67.88 | 74.70 | 62.61 |
| 2,6,2,2,2 | aDManp | 103.69 | 71.58 | 71.87 | 68.41 | 74.82 | 62.52 |
| 2,6,2,2 | aDManp | 102.06 | 79.94 | 71.52 | 67.88 | 74.70 | 62.61 |
| 2,6,2 | aDManp | 99.73 | 80.21 | 71.73 | 68.36 | 74.89 | 68.44 |
| 2,6,6,6 | SUG | |
| 2,6,6 | bDGlcp | 104.52 | 74.58 | 77.11 | 69.65 | 74.42 | 67.71 |
| 2,6 | aDManp | 99.73 | 80.21 | 71.73 | 68.36 | 74.89 | 68.44 |
| 2 | aDManp | 103.60 | 71.14 | 70.36 | 67.94 | 74.68 | 68.6 |
| | aDManp | |
|
There is only one chemically distinct structure:
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