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Volumn 131, Issue 13, 2009, Pages 4695-4701

Hydration of protonated aromatic amino acids: Phenylalanine, tryptophan, and tyrosine

Author keywords

[No Author keywords available]

Indexed keywords

ACID SYSTEMS; AMMONIUM GROUPS; AROMATIC AMINO ACID; BOUND WATERS; CARBOXYL GROUPS; CHARGE-DIPOLE; DIPOLE DIPOLE INTERACTIONS; DRIFT CELLS; ELECTRONIC STRUCTURE CALCULATIONS; HIGH WATER; PROTONATED; SEQUENTIAL ADDITION; SIDE CHAINS; SOLVATION SHELL; WATER MOLECULE;

EID: 67749120540     PISSN: 00027863     EISSN: None     Source Type: Journal    
DOI: 10.1021/ja8085017     Document Type: Article
Times cited : (62)

References (49)
  • 7
    • 38849196324 scopus 로고    scopus 로고
    • Ball, P. Chem. Rev. 2008, 108, 74-108.
    • (2008) Chem. Rev , vol.108 , pp. 74-108
    • Ball, P.1
  • 31
    • 9244260409 scopus 로고    scopus 로고
    • University of California, San Francisco
    • Case, D. A.; et al. Amber 8; University of California, San Francisco, 2004.
    • (2004) Amber 8
    • Case, D.A.1
  • 32
    • 67949085613 scopus 로고    scopus 로고
    • Gaussian Inc, Wallingford, CT
    • Frisch, M. J.; et al. Gaussian 03, Revision C.02; Gaussian Inc.: Wallingford, CT, 2004.
    • (2004) Gaussian 03, Revision , Issue.C.02
    • Frisch, M.J.1
  • 36
    • 67949090142 scopus 로고    scopus 로고
    • quot;Interactions refers here to van der Waals interactions in the broadest sense, including (possibly weak) hydrogen bonds.
    • quot;Interactions" refers here to van der Waals interactions in the broadest sense, including (possibly weak) hydrogen bonds.
  • 38
    • 67949088667 scopus 로고    scopus 로고
    • At the B3LYP level of theory, the H(3)-side chain interaction is 2 kcal/mol stronger than the H(2)-carboxyl interaction, based on a comparison of structures having one or the other type of interaction. This result indicates that the H(3)-side chain interaction is significant and of the same order as the H(2)-carboxyl interaction or stronger
    • At the B3LYP level of theory, the H(3)-side chain interaction is 2 kcal/mol stronger than the H(2)-carboxyl interaction, based on a comparison of structures having one or the other type of interaction. This result indicates that the H(3)-side chain interaction is significant and of the same order as the H(2)-carboxyl interaction or stronger.
  • 46
    • 67949119322 scopus 로고    scopus 로고
    • A structure with three water molecules in the first solvation shell (like structure F) and one water in the second shell is detected, but found to be energetically less favorable than structure G (by 2-3 kcal/mol).
    • A structure with three water molecules in the first solvation shell (like structure F) and one water in the second shell is detected, but found to be energetically less favorable than structure G (by 2-3 kcal/mol).
  • 47
    • 67949102531 scopus 로고    scopus 로고
    • Structure H, corresponding to structure G with an additional fifth water molecule bound to water attached to H(2) and H(3), is the lowestenergy structure located for a five-water complex. However, additional structures in the same family (G plus one water in the second solvation shell) include structures with a fifth water molecule bound between H(3) and H(1) and between H(1) and H(2) with similar energies (isoenergetic within 1-2 kcal/mol).
    • Structure H, corresponding to structure G with an additional fifth water molecule bound to water attached to H(2) and H(3), is the lowestenergy structure located for a five-water complex. However, additional structures in the same family (G plus one water in the second solvation shell) include structures with a fifth water molecule bound between H(3) and H(1) and between H(1) and H(2) with similar energies (isoenergetic within 1-2 kcal/mol).


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.