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Volumn 75, Issue 15, 2010, Pages 4899-4910

N -acetyl side-chains in saccharides: NMR J -coupling equations sensitive to CH-NH and NH-CO bond conformations in 2-Acetamido-2-deoxy-aldohexopyranosyl rings

Author keywords

[No Author keywords available]

Indexed keywords

ACETAMIDO; ACETYL GROUPS; ALDOHEXOPYRANOSYL RINGS; AMIDE BOND; BIOLOGICAL PROCESS; CONFORMATIONAL STUDY; J COUPLING; MODEL COMPOUND; NMR SPECTROSCOPY; PARAMETRIZATIONS; SIDE CHAINS; SIDE-CHAIN; SPIN-COUPLING; STRUCTURAL ELEMENTS; TORSION ANGLE;

EID: 77955131298     PISSN: 00223263     EISSN: 15206904     Source Type: Journal    
DOI: 10.1021/jo100521g     Document Type: Article
Times cited : (23)

References (38)
  • 1
    • 0004106191 scopus 로고    scopus 로고
    • Varki A.; Cummings R.; Esko J.D.; Freeze H.; Hart G.W.; Marth J. Cold Spring Harbor Lab Press: Cold Spring Harbor, NY
    • Essentials of Glycobiology; Varki, A., Cummings, R., Esko, J. D., Freeze, H., Hart, G. W., Marth, J., Eds.; Cold Spring Harbor Lab Press: Cold Spring Harbor, NY, 1999.
    • (1999) Essentials of Glycobiology
  • 28
    • 77955145310 scopus 로고    scopus 로고
    • v8.0725; OriginLab: Northampton, MA
    • OriginPro 8, v8.0725; OriginLab: Northampton, MA, 2007.
    • (2007) OriginPro 8
  • 33
    • 84855623203 scopus 로고    scopus 로고
    • 2O solvent at low temperature to suppress solvent exchange (see ref 28), to permit measurement of all N -acetyl related J -couplings in a single solvent
    • 2O solvent at low temperature to suppress solvent exchange (see ref 28), to permit measurement of all N -acetyl related J -couplings in a single solvent.
  • 38
    • 84855620817 scopus 로고    scopus 로고
    • This survey was conducted on 1311 PDB files (from the RCSB PDB database) containing a total of 7994 GlcNAc residues. Within the latter group, 917 residues contained a H2-C2-N2-H torsion angle between 60° and -60°, producing an ∼11% α- syn population; the remaining ∼89% is α- trans. With regard to amide conformation, 463 residues contained a C2-N2-C1′-C2′ torsion angle between 60° and -60°, giving an ∼6% β- cis population
    • This survey was conducted on 1311 PDB files (from the RCSB PDB database) containing a total of 7994 GlcNAc residues. Within the latter group, 917 residues contained a H2-C2-N2-H torsion angle between 60° and -60°, producing an ∼11% α- syn population; the remaining ∼89% is α- trans. With regard to amide conformation, 463 residues contained a C2-N2-C1′-C2′ torsion angle between 60° and -60°, giving an ∼6% β- cis population.


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