Carbon-13 NMR chemical shifts of the common amino acid residues measured in aqueous solutions of the linear tetrapeptides H-Gly-Gly- X-L- Ala-OH

Biopolymers ◽  
1978 ◽  
Vol 17 (9) ◽  
pp. 2133-2141 ◽  
Author(s):  
René Richarz ◽  
Kurt Wüthrich
Keyword(s):  
Amino Acid ◽  
Aqueous Solutions ◽  
Chemical Shifts ◽  
Amino Acid Residues ◽  
Common Amino Acid ◽  
Nmr Chemical Shifts ◽  
The Common

1H-NMR parameters of common amino acid residues measured in aqueous solutions of the linear tetrapeptides Gly-Gly-X-Ala at pressures between 0.1 and 200 MPa

2002 ◽  
Vol 96 (2-3) ◽  
pp. 129-140 ◽  
Author(s):  
Martin Reinhard Arnold ◽  
Werner Kremer ◽  
Hans-Dietrich Lüdemann ◽  
Hans Robert Kalbitzer
Keyword(s):  
Amino Acid ◽  
Aqueous Solutions ◽  
1H Nmr ◽  
Amino Acid Residues ◽  
Common Amino Acid ◽  
Nmr Parameters

scholarly journals 45Scandium NMR Investigations in Aqueous Solutions

1983 ◽  
Vol 38 (3) ◽  
pp. 317-321 ◽  
Author(s):  
E. Haid ◽  
D. Köhnlein ◽  
G. Kössler ◽  
O. Lutz ◽  
W. Messner ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Chemical Shifts ◽  
Isotope Effects ◽  
Larmor Frequency ◽  
Relaxation Rates ◽  
Nmr Chemical Shifts ◽  
Typical Behaviour ◽  
Solvent Isotope ◽  
Scandium Chloride ◽  
Solvent Isotope Effects

Abstract45Sc NMR chemical shifts, linewidths, and longitudinal relaxation rates have been measured in aqueous solutions of scandium chloride and sulphate as a function of the appropriate acid. A common typical behaviour of these parameters without sudden changes has been observed. Also signals in the basic range have been obtained. H2O -D2O solvent isotope effects on Larmor frequency and relaxation rates are presented.

scholarly journals 1H and 13C NMR spectral assignments of an amino acid-coumarin hybrid

2013 ◽  
Vol 11 (1) ◽  
pp. 101-107
Author(s):  
Vidoslav Dekic ◽  
Biljana Dekic ◽  
Niko Radulovic
Keyword(s):  
Spectral Analysis ◽  
Amino Acid ◽  
13C Nmr ◽  
Chemical Shifts ◽  
1H And 13C Nmr ◽  
Nmr Chemical Shifts ◽  
13C Nmr Chemical Shifts ◽  
Complete Assignment ◽  
Acid Derivate ◽  
Coumarin Amino Acid

Synthesis and detailed spectral analysis of a new 4-substituted coumarin-amino acid derivate are presented in this paper. A new glycine derivate of (3-nitro-2-oxo-2H-chromen-4-yl)amino]acetate was prepared by condensation of 4-chloro-3-nitrocoumarin and ethyl glycinate hydrochloride. The complete assignment of 1H and 13C NMR chemical shifts of the synthesized compound was carried out by the aid of a combination of 1D (1H and 13C NMR) and 2D (1H-1H-COSY, NOESY, HSQC and HMBC) NMR experiments.

scholarly journals The amino acid sequence and position of the free thiol group of a short-chain neurotoxin from common-death-adder (Acanthophis antarcticus) venom

1981 ◽  
Vol 199 (1) ◽  
pp. 211-218 ◽  
Author(s):  
H S Kim ◽  
N Tamiya
Keyword(s):  
Amino Acid ◽  
Amino Acid Sequence ◽  
Lethal Dose ◽  
Thiol Group ◽  
Cysteine Residue ◽  
Short Chain ◽  
Amino Acid Residues ◽  
The Family ◽  
Free Thiol Group ◽  
The Common

The amino acid sequence of a short-chain neurotoxin Acanthophis antarcticus c (toxin Aa c) from the venom of an Australian elapid snake, the common death adder (Acanthophis antarcticus, subfamily Acanthophiinae) was elucidated. Toxin Aa c is composed of 62 amino acid residues, including eight half-cystine residues and a cysteine residue. The amino acid sequence of toxin Aa c is homologous with those of other short-chain neurotoxins found in snakes of the family Elapidae, especially with those from snakes of the subfamily Hydrophiinae. The single cysteine residue was located in position 4. Toxin Aa c has a lethal dose (LD50) of 0.08 micrograms/g body weight of mouse on intramuscular injection.

Lucimycin, an antifungal peptide from the therapeutic maggot of the common green bottle fly Lucilia sericata

2014 ◽  
Vol 395 (6) ◽  
pp. 649-656 ◽  
Author(s):  
Anne-Kathrin Pöppel ◽  
Aline Koch ◽  
Karl-Heinz Kogel ◽  
Heiko Vogel ◽  
Christian Kollewe ◽  
...  
Keyword(s):  
Amino Acid ◽  
Plant Pathogens ◽  
Functional Characterization ◽  
Lucilia Sericata ◽  
Random Coil ◽  
Binding Motif ◽  
Antifungal Peptide ◽  
Amino Acid Residues ◽  
Green Bottle ◽  
The Common

Abstract We report the identification, cloning, heterologous expression and functional characterization of a novel antifungal peptide named lucimycin from the common green bottle fly Lucilia sericata. The lucimycin cDNA was isolated from a library of genes induced during the innate immune response in L. sericata larvae, which are used as therapeutic maggots. The peptide comprises 77 amino acid residues with a molecular mass of 8.2 kDa and a pI of 6.6. It is predicted to contain a zinc-binding motif and to form a random coil, lacking β-sheets or other secondary structures. Lucimycin was active against fungi from the phyla Ascomycota, Basidiomycota and Zygomycota, in addition to the oomycete Phytophtora parasitica, but it was inactive against bacteria. A mutant version of lucimycin, lacking the four C-terminal amino acid residues, displayed 40-fold lower activity. The activity of lucimycin against a number of highly-destructive plant pathogens could be exploited to produce transgenic crops that are resistant against fungal diseases.

scholarly journals Alternative probe for the determination of the hydrogen-bond acidity of ionic liquids and their aqueous solutions

2017 ◽  
Vol 19 (18) ◽  
pp. 11011-11016 ◽  
Author(s):  
Pedro P. Madeira ◽  
Helena Passos ◽  
Joana Gomes ◽  
João A. P. Coutinho ◽  
Mara G. Freire
Keyword(s):  
Hydrogen Bond ◽  
Ionic Liquids ◽  
Aqueous Solutions ◽  
Chemical Shifts ◽  
Nmr Chemical Shifts ◽  
Hydrogen Bond Acidity ◽  
C Nmr

The alternative probe pyridine-N-oxide allows the determination of the hydrogen-bond acidity of both neat ionic liquids and their aqueous solutions based on 13C NMR chemical shifts.

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