Vibrational spectroscopy and DFT calculations of the di-amino acid peptide l-aspartyl-l-glutamic acid in the zwitterionic state

2009 ◽  
Vol 11 (30) ◽  
pp. 6389 ◽  
Author(s):  
Nighat Kausar ◽  
Trevor J. Dines ◽  
Babur Z. Chowdhry ◽  
Bruce D. Alexander
Keyword(s):  
Amino Acid ◽  
Dft Calculations ◽  
Glutamic Acid ◽  
Vibrational Spectroscopy ◽  
Amino Acid Peptide

Vibrational spectroscopy and DFT calculations of di-amino acid cyclic peptides. Part I: cyclo(Gly-Gly), cyclo(L-Ala-L-Ala) and cyclo(L-Ala-Gly) in the solid state and in aqueous solution

2009 ◽  
Vol 40 (11) ◽  
pp. 1478-1497 ◽  
Author(s):  
Andrew P. Mendham ◽  
Trevor J. Dines ◽  
Martin J. Snowden ◽  
Babur Z. Chowdhry ◽  
Robert Withnall
Keyword(s):  
Aqueous Solution ◽  
Amino Acid ◽  
Solid State ◽  
Dft Calculations ◽  
Vibrational Spectroscopy ◽  
Cyclic Peptides

Vibrational spectroscopy and DFT calculations of di-amino acid peptides: α- and β-N-acetyl-L-Asp-L-Glu in the solid state

2009 ◽  
Vol 40 (6) ◽  
pp. 661-669 ◽  
Author(s):  
Nighat Kausar ◽  
Bruce D. Alexander ◽  
Trevor J. Dines ◽  
Robert Withnall ◽  
Babur Z. Chowdhry
Keyword(s):  
Amino Acid ◽  
Solid State ◽  
Dft Calculations ◽  
Vibrational Spectroscopy

Vibrational spectroscopy and crystal structure analysis of two polymorphs of the di-amino acid peptide cyclo(L -Glu-L -Glu)

2009 ◽  
Vol 41 (3) ◽  
pp. 288-302 ◽  
Author(s):  
Andrew P. Mendham ◽  
Rex A. Palmer ◽  
Brian S. Potter ◽  
Trevor J. Dines ◽  
Martin J. Snowden ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Amino Acid ◽  
Structure Analysis ◽  
Vibrational Spectroscopy ◽  
Crystal Structure Analysis ◽  
Amino Acid Peptide

Vibrational spectra and crystal structure of the di-amino acid peptide cyclo(L -Met-L -Met): comparison of experimental data and DFT calculations

2009 ◽  
Vol 41 (2) ◽  
pp. 148-159 ◽  
Author(s):  
Andrew P. Mendham ◽  
Brian S. Potter ◽  
Rex A. Palmer ◽  
Trevor J. Dines ◽  
John C. Mitchell ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Experimental Data ◽  
Amino Acid ◽  
Dft Calculations ◽  
Vibrational Spectra ◽  
Amino Acid Peptide

Vibrational spectroscopy and DFT calculations of amino acid derivatives:N-acetyl-L-Asp andN-acetyl-L-Glu in the solid state

2009 ◽  
Vol 40 (6) ◽  
pp. 670-678 ◽  
Author(s):  
Nighat Kausar ◽  
Bruce D. Alexander ◽  
Trevor J. Dines ◽  
Robert Withnall ◽  
Babur Z. Chowdhry
Keyword(s):  
Amino Acid ◽  
Solid State ◽  
Dft Calculations ◽  
Vibrational Spectroscopy

Immunoelectron microscope detection of C-type natriuretic peptide in normal human atrial tissue

1993 ◽  
Vol 51 ◽  
pp. 388-389
Author(s):  
Chi-Ming Wei ◽  
Margaret Hukee ◽  
Christopher G.A. McGregor ◽  
John C. Burnett
Keyword(s):  
Amino Acid ◽  
Natriuretic Peptide ◽  
Vascular Tone ◽  
Cardiac Tissue ◽  
Ring Structure ◽  
Terminal Amino Acid ◽  
Amino Acid Peptide ◽  
Normal Human ◽  
Terminal Amino ◽  
The Brain

C-type natriuretic peptide (CNP) is a newly identified peptide that is structurally related to atrial (ANP) and brain natriuretic peptide (BNP). CNP exists as a 22-amino acid peptide and like ANP and BNP has a 17-amino acid ring formed by a disulfide bond. Unlike these two previously identified cardiac peptides, CNP lacks the COOH-terminal amino acid extension from the ring structure. ANP, BNP and CNP decrease cardiac preload, but unlike ANP and BNP, CNP is not natriuretic. While ANP and BNP have been localized to the heart, recent investigations have failed to detect CNP mRNA in the myocardium although small concentrations of CNP are detectable in the porcine myocardium. While originally localized to the brain, recent investigations have localized CNP to endothelial cells consistent with a paracrine role for CNP in the control of vascular tone. While CNP has been detected in cardiac tissue by radioimmunoassay, no studies have demonstrated CNP localization in normal human heart by immunoelectron microscopy.

scholarly journals Glucose phosphorylation. Interaction of a 50-amino acid peptide of yeast hexokinase with trinitrophenyl ATP.

1990 ◽  
Vol 265 (9) ◽  
pp. 5324-5328
Author(s):  
K K Arora ◽  
P Shenbagamurthi ◽  
M Fanciulli ◽  
P L Pedersen
Keyword(s):  
Amino Acid ◽  
Amino Acid Peptide ◽  
Glucose Phosphorylation ◽  
Yeast Hexokinase

Vibrational spectroscopy and DFT calculations of N,N′-dicyclohexylcarbodiimide

2011 ◽  
Vol 42 (2) ◽  
pp. 230-238 ◽  
Author(s):  
Babur Z. Chowdhry ◽  
Trevor J. Dines ◽  
Stephen A. Leharne ◽  
John P. Ryall ◽  
Iqbal T. Shadi ◽  
...  
Keyword(s):  
Dft Calculations ◽  
Vibrational Spectroscopy

scholarly journals A C-peptide complex with albumin and Zn2+ increases measurable GLUT1 levels in membranes of human red blood cells

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
M. Geiger ◽  
T. Janes ◽  
H. Keshavarz ◽  
S. Summers ◽  
C. Pinger ◽  
...  
Keyword(s):  
Type 1 Diabetes ◽  
Amino Acid ◽  
Blood Cells ◽  
Glucose Transporter ◽  
Peptide Binding ◽  
C Peptide ◽  
Amino Acid Peptide ◽  
Human Red Blood Cells

Abstract People with type 1 diabetes (T1D) require exogenous administration of insulin, which stimulates the translocation of the GLUT4 glucose transporter to cell membranes. However, most bloodstream cells contain GLUT1 and are not directly affected by insulin. Here, we report that C-peptide, the 31-amino acid peptide secreted in equal amounts with insulin in vivo, is part of a 3-component complex that affects red blood cell (RBC) membranes. Multiple techniques were used to demonstrate saturable and specific C-peptide binding to RBCs when delivered as part of a complex with albumin. Importantly, when the complex also included Zn2+, a significant increase in cell membrane GLUT1 was measured, thus providing a cellular effect similar to insulin, but on a transporter on which insulin has no effect.

Ternary chromium(III)-nucleotide-amino acid complexes III. L-Glutamic acid derivatives

1989 ◽  
Vol 165 (1) ◽  
pp. 131-137 ◽  
Author(s):  
M. Vicens ◽  
J.J. Fiol ◽  
A. Terron ◽  
V. Moreno
Keyword(s):  
Amino Acid ◽  
Glutamic Acid ◽  
Amino Acid Complexes ◽  
Glutamic Acid Derivatives
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