Related ArticlesApplication of difference NOE-pumping NMR technique and cold-spray ionization mass spectrometry to identify a ligand binding with a protein receptor.
Anal Sci. 2004 Oct;20(10):1467-70
Authors: Seki H, Sei Y, Shikii K, Shimotakahara S, Utsumi H, Yamaguchi K, Tashiro M
A difference diffusion-based NMR technique and cold-spray ionization mass spectrometry were employed as a solution-based approach for identifying a ligand binding with a protein receptor. The difference diffusion-based NMR technique, called difference NOE-pumping, can directly detect the ligand interacting with a protein receptor. This technique uses a simple pulse sequence and the diffusion filter can easily be optimized. The cold-spray ionization mass spectrometry (CSI-MS), a variant of electrospray ionization mass spectrometry (ESI-MS) operating at low temperature, has been applied to detect the ligand-receptor complex. The efficiency of these techniques for identifying binding ligands is demonstrated with the human serum albumin (HSA)-drug system.
[NMR paper] A solid-state NMR study of molecular mobility and phase separation in co-spray-dried
A solid-state NMR study of molecular mobility and phase separation in co-spray-dried protein-sugar particles.
Related Articles A solid-state NMR study of molecular mobility and phase separation in co-spray-dried protein-sugar particles.
Eur J Pharm Sci. 2005 May;25(1):105-12
Authors: Suihko EJ, Forbes RT, Apperley DC
Molecular mobility and physical form of co-spray-dried sugar-lysozyme formulations were evaluated. Co-spray-dried trehalose:lysozyme and sucrose:lysozyme formulations in 1:9, 1:1 and 9:1 ratios (w:w) were stored at 0% RH and 75%...
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11-25-2010 08:21 PM
[NMR paper] Application of the 19F NMR technique to observe binding of the general anesthetic hal
Application of the 19F NMR technique to observe binding of the general anesthetic halothane to human serum albumin.
Related Articles Application of the 19F NMR technique to observe binding of the general anesthetic halothane to human serum albumin.
Anal Sci. 2004 Oct;20(10):1475-7
Authors: Shikii K, Sakurai S, Utsumi H, Seki H, Tashiro M
19F NMR techniques were employed to characterize the binding property of the widely used general anesthetic halothane with human serum albumin (HSA). It was found that 19F(1H) NOE and 2D 1H-19F HOESY...
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11-24-2010 10:01 PM
[NMR paper] NMR difference spectroscopy with a dual saddle-coil difference probe.
NMR difference spectroscopy with a dual saddle-coil difference probe.
Related Articles NMR difference spectroscopy with a dual saddle-coil difference probe.
Anal Bioanal Chem. 2004 Mar;378(6):1520-7
Authors: Macnaughtan MA, Smith AP, Goldsbrough PB, Santini RE, Raftery D
A new difference probe for nuclear magnetic resonance (NMR) spectroscopy is presented. The difference probe uses two saddle-shaped coils to excite and detect two samples simultaneously. The samples are held in a specially modified 3-mm NMR tube with an Ultem plastic disk to...
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[NMR paper] Ionization properties of titratable groups in ribonuclease T1. I. pKa values in the n
Ionization properties of titratable groups in ribonuclease T1. I. pKa values in the native state determined by two-dimensional heteronuclear NMR spectroscopy.
Related Articles Ionization properties of titratable groups in ribonuclease T1. I. pKa values in the native state determined by two-dimensional heteronuclear NMR spectroscopy.
Eur Biophys J. 2001 Jul;30(3):186-97
Authors: Spitzner N, Löhr F, Pfeiffer S, Koumanov A, Karshikoff A, Rüterjans H
pKa values of amino acid side chains of ribonuclease T1 have been determined from the pH...
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11-19-2010 08:44 PM
[NMR paper] Individual ionization constants of all the carboxyl groups in ribonuclease HI from Es
Individual ionization constants of all the carboxyl groups in ribonuclease HI from Escherichia coli determined by NMR.
Related Articles Individual ionization constants of all the carboxyl groups in ribonuclease HI from Escherichia coli determined by NMR.
Biochemistry. 1994 May 3;33(17):5275-84
Authors: Oda Y, Yamazaki T, Nagayama K, Kanaya S, Kuroda Y, Nakamura H
All of the individual carboxyl groups (the side-chain carboxyl groups of Asp and Glu, and the C-terminal alpha-carboxyl group) in Escherichia coli ribonuclease HI, which is an enzyme...
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08-22-2010 03:33 AM
[NMR paper] 13C NMR determination of the tautomeric and ionization states of folate in its comple
13C NMR determination of the tautomeric and ionization states of folate in its complexes with Lactobacillus casei dihydrofolate reductase.
Related Articles 13C NMR determination of the tautomeric and ionization states of folate in its complexes with Lactobacillus casei dihydrofolate reductase.
Biochemistry. 1993 Jul 13;32(27):6846-54
Authors: Cheung HT, Birdsall B, Frenkiel TA, Chau DD, Feeney J
13C NMR studies provide a convenient way of obtaining detailed information about tautomeric and ionization states in protein-ligand complexes provided...
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08-22-2010 03:01 AM
A sniff of a nanotech insulin nasal spray - spectroscopyNOW.com
A sniff of a nanotech insulin nasal spray - spectroscopyNOW.com
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A sniff of a nanotech insulin nasal spray
spectroscopyNOW.com
UV and NMR spectroscopy as well as various other techniques have been used to study the slow release of insulin over a 120-hour period from chitosan ...