P3501

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Showing 1-18 of 18 results for "P3501" within Papers

Structure and IR spectrum of phenylalanyl-glycyl-glycine tripetide in the gas-phase: IR/UV experiments, ab initio quantum chemical calculations, and molecular dynamic simulations.

D Reha et al.

Chemistry (Weinheim an der Bergstrasse, Germany), 11(23), 6803-6817 (2005-08-11)

We investigated the potential-energy surface (PES) of the phenylalanyl-glycyl-glycine tripeptide in the gas phase by means of IR/UV double-resonance spectroscopy, and quantum chemical and statistical thermodynamic calculations. Experimentally, we observed four conformational structures and we recorded their IR spectra in

Preparation of nuclear spin singlet states using spin-lock induced crossing.

Stephen J DeVience et al.

Physical review letters, 111(17), 173002-173002 (2013-11-12)

We introduce a broadly applicable technique to create nuclear spin singlet states in organic molecules and other many-atom systems. We employ a novel pulse sequence to produce a spin-lock induced crossing (SLIC) of the spin singlet and triplet energy levels

Hydromethanolic Extracts from Adansonia digitata L. Edible Parts Positively Modulate Pathophysiological Mechanisms Related to the Metabolic Syndrome.

Stefania Cicolari et al.

Molecules (Basel, Switzerland), 25(12) (2020-06-25)

Metabolic syndrome includes a cluster of risk factors for many pathological conditions, including hyperglycemia, abdominal obesity, hyperlipidemia, and hypertension. Adansonia digitata L. (also known as baobab) is used in traditional African Medicine and recent studies showed that it improves the

Structure of isolated tryptophyl-glycine dipeptide and tryptophyl-glycyl-glycine tripeptide: ab initio SCC-DFTB-D molecular dynamics simulations and high-level correlated ab initio quantum chemical calculations.

Haydee Valdés et al.

The journal of physical chemistry. B, 110(12), 6385-6396 (2006-03-24)

The tryptophyl-glycine (Trp-Gly) and tryptophyl-glycyl-glycine (Trp-Gly-Gly) peptides have been studied by means of molecular dynamic simulations combined with high-level correlated ab initio quantum chemical and statistical thermodynamic calculations. The lowest energy conformers were localized in the free energy surface. The

Highly sensitive solid-phase immunoenzymometric assay for placental and placental-like alkaline phosphatases with a monoclonal antibody and monodisperse polymer particles.

J L Millán et al.

Clinical chemistry, 31(1), 54-59 (1985-01-01)

We have used a mouse monoclonal antibody (H7) to placental alkaline phosphatase (PLAP, EC 3.1.3.1) in developing an immunoenzymometric assay for PLAP and PLAP-like enzymes. The antibody is bound to sheep anti-mouse IgG (Ab2) covalently coupled to tosylated shell-and-core light

Effects of aqueous extract of Hibiscus sabdariffa on the renin-angiotensin-aldosterone system of Nigerians with mild to moderate essential hypertension: A comparative study with lisinopril.

Daniel Chukwu Nwachukwu et al.

Indian journal of pharmacology, 47(5), 540-545 (2015-11-26)

The present study investigated the effects of aqueous extract of Hibiscus sabdariffa (HS) on the three basic components of renin-angiotensin-aldosterone system: Plasma renin, serum angiotensin-converting enzyme (ACE), and plasma aldosterone (PA) in mild to moderate essential hypertensive Nigerians and compared

Automated multi-step purification protocol for Angiotensin-I-Converting-Enzyme (ACE).

Thomas Eisele et al.

Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 911, 64-70 (2012-12-12)

Highly purified proteins are essential for the investigation of the functional and biochemical properties of proteins. The purification of a protein requires several steps, which are often time-consuming. In our study, the Angiotensin-I-Converting-Enzyme (ACE; EC 3.4.15.1) was solubilised from pig

Spectroscopic evidence for gas-phase formation of successive beta-turns in a three-residue peptide chain.

Wutharath Chin et al.

Journal of the American Chemical Society, 127(5), 1388-1389 (2005-02-03)

We report the first gas-phase spectroscopic study of a three-residue model of a peptide chain, Ac-Phe-Gly-Gly-NH2 (Ac = acetyl), using the IR/UV double resonance technique. The existence of at least five different conformers under supersonic expansion conditions is established, most

Structure and IR spectrum of phenylalanyl-glycyl-glycine tripetide in the gas-phase: IR/UV experiments, ab initio quantum chemical calculations, and molecular dynamic simulations.

Reha D, Valdes H, Vondrasek J, et al.

Chemistry (Easton), 11, 6803-6817 (2005)

Limitations of electrospray ionization in the analysis of a heterogeneous mixture of naturally occurring hydrophilic and hydrophobic compounds.

Antonio Nebbioso et al.

Rapid communications in mass spectrometry : RCM, 24(21), 3163-3170 (2010-10-14)

A model heterogeneous mixture of a hydrophilic tripeptide (phenylalanine-glycine-glycine, PGG) and hydrophobic organic acids ((12)C- and (13)C-octanoic acid and pentadecanoic acid) was subjected to electrospray ionization mass spectrometry (ESI-MS). The objective was to verify the previously noted inconsistencies in ESI-MS

Stimulation by parathyroid hormone of 45Ca2+ uptake in osteoblast-like cells: possible involvement of alkaline phosphatase.

S Fukayama et al.

Endocrinology, 126(4), 1941-1949 (1990-04-01)

We have investigated the actions of human PTH [hPTH-(1-34)] on the association of 45Ca2+ with two human (SaOS-2 and MG-63) and two rat (ROS 17/2.8 and UMR-106) osteoblast-like cell types. In SaOS-2 cells, hPTH-(1-34) binds to specific membrane receptors to

Tissue alkaline phosphatase is involved in lipid metabolism and gene expression and secretion of adipokines in adipocytes.

Claudia Hernández-Mosqueira et al.

Biochimica et biophysica acta, 1850(12), 2485-2496 (2015-09-24)

Alkaline phosphatases are dimeric hydrolytic enzymes that dephosphorylate nucleotides and proteins. AP-TNAP is found primarily in skeletal tissues were it plays a major role in the mineralization of the extracellular matrix and bone formation. In this study we found through

Thermal vaporization of biological nanoparticles: fragment-free vacuum ultraviolet photoionization mass spectra of tryptophan, phenylalanine-glycine-glycine, and beta-carotene.

Kevin R Wilson et al.

The journal of physical chemistry. A, 110(6), 2106-2113 (2006-02-10)

A simple, new way to introduce fragile biomolecules into the gas phase via thermal vaporization of nanoparticles is described. The general utility of this technique for the study of biomolecules is demonstrated by coupling this source to tunable synchrotron vacuum

Structure and conformation of linear peptides. XIII. Structure of L-phenylalanyl-glycyl-glycine.

E Subramanian et al.

International journal of peptide and protein research, 34(3), 211-214 (1989-09-01)

The crystal structure of a tripeptide, L-phenylalanyl-glycyl-glycine (C13H17N3O4), molecular weight = 279.3, has been determined. The crystals are orthorhombic, space group P2(1)2(1)2(1), with a = 5.462(1) A, b = 15.285(5), c = 16.056(4), Z = 4, and P (calc) =

The effect of alkaline phosphatase inhibitors on intracellular lipid accumulation in preadipocytes isolated from human mammary tissue.

Aus T Ali et al.

Annals of clinical biochemistry, 43(Pt 3), 207-213 (2006-05-18)

A previous study has demonstrated that alkaline phosphatase (AP) may play a role in the control of intracellular lipid accumulation in the rodent preadipocyte cell line, 3T3-L1. The present study investigated whether AP may have a similar function in preadipocytes

Capillary electrochromatography using knitted aromatic polymer as the stationary phase for the separation of small biomolecules and drugs.

Pingxiu Tang et al.

Talanta, 178, 650-655 (2017-11-16)

Hypercrosslinked polymers (HCPs) are currently receiving great attention due to their unique characteristics and potential uses in diverse areas. However, the field of HCPs for open-tubular capillary electrochromatography (OT-CEC) separations has not been explored. Here, a knitted aromatic polymer (KAP)

Pulmonary midkine inhibition ameliorates sepsis induced lung injury.

Jing-Yuan Xu et al.

Journal of translational medicine, 19(1), 91-91 (2021-03-01)

Midkine is a multi-functional molecule participating in a various key pathological process. We aimed to evaluate the change of midkine in sepsis and its association with angiotensin-converting enzyme (ACE) system, as well as the mechanism by which midkine induced in

Double-hybrid density functionals with long-range dispersion corrections: higher accuracy and extended applicability.

Tobias Schwabe et al.

Physical chemistry chemical physics : PCCP, 9(26), 3397-3406 (2007-08-01)

The objective of this work is the further systematic improvement of the accuracy of Double-Hybrid Density Functionals (DHDF) that add non-local electron correlation effects to a standard hybrid functional by second-order perturbation theory (S. Grimme, J. Chem. Phys., 2006, 124

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