Z-Gln-OH

CAS# 2650-64-8

Z-Gln-OH

Catalog No. BCC2783----Order now to get a substantial discount!

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Z-Gln-OH: 5mg $6 In Stock
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Quality Control of Z-Gln-OH

Number of papers citing our products

Chemical structure

Z-Gln-OH

3D structure

Chemical Properties of Z-Gln-OH

Cas No. 2650-64-8 SDF Download SDF
PubChem ID 75855 Appearance Powder
Formula C13H16N2O5 M.Wt 280.3
Type of Compound N/A Storage Desiccate at -20°C
Solubility Soluble in Chloroform,Dichloromethane,Ethyl Acetate,DMSO,Acetone,etc.
Chemical Name (2S)-5-amino-5-oxo-2-(phenylmethoxycarbonylamino)pentanoic acid
SMILES C1=CC=C(C=C1)COC(=O)NC(CCC(=O)N)C(=O)O
Standard InChIKey JIMLDJNLXLMGLX-JTQLQIEISA-N
Standard InChI InChI=1S/C13H16N2O5/c14-11(16)7-6-10(12(17)18)15-13(19)20-8-9-4-2-1-3-5-9/h1-5,10H,6-8H2,(H2,14,16)(H,15,19)(H,17,18)/t10-/m0/s1
General tips For obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.Stock solution can be stored below -20℃ for several months.
We recommend that you prepare and use the solution on the same day. However, if the test schedule requires, the stock solutions can be prepared in advance, and the stock solution must be sealed and stored below -20℃. In general, the stock solution can be kept for several months.
Before use, we recommend that you leave the vial at room temperature for at least an hour before opening it.
About Packaging 1. The packaging of the product may be reversed during transportation, cause the high purity compounds to adhere to the neck or cap of the vial.Take the vail out of its packaging and shake gently until the compounds fall to the bottom of the vial.
2. For liquid products, please centrifuge at 500xg to gather the liquid to the bottom of the vial.
3. Try to avoid loss or contamination during the experiment.
Shipping Condition Packaging according to customer requirements(5mg, 10mg, 20mg and more). Ship via FedEx, DHL, UPS, EMS or other couriers with RT, or blue ice upon request.

Z-Gln-OH Dilution Calculator

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Z-Gln-OH Molarity Calculator

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Preparing Stock Solutions of Z-Gln-OH

1 mg 5 mg 10 mg 20 mg 25 mg
1 mM 3.5676 mL 17.838 mL 35.6761 mL 71.3521 mL 89.1902 mL
5 mM 0.7135 mL 3.5676 mL 7.1352 mL 14.2704 mL 17.838 mL
10 mM 0.3568 mL 1.7838 mL 3.5676 mL 7.1352 mL 8.919 mL
50 mM 0.0714 mL 0.3568 mL 0.7135 mL 1.427 mL 1.7838 mL
100 mM 0.0357 mL 0.1784 mL 0.3568 mL 0.7135 mL 0.8919 mL
* Note: If you are in the process of experiment, it's necessary to make the dilution ratios of the samples. The dilution data above is only for reference. Normally, it's can get a better solubility within lower of Concentrations.

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Background on Z-Gln-OH

Z-Gln-OH

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References on Z-Gln-OH

Conformation-specific spectroscopy of capped glutamine-containing peptides: role of a single glutamine residue on peptide backbone preferences.[Pubmed:27054830]

Phys Chem Chem Phys. 2016 Apr 28;18(16):11306-22.

The conformational preferences of a series of short, aromatic-capped, glutamine-containing peptides have been studied under jet-cooled conditions in the gas phase. This work seeks a bottom-up understanding of the role played by glutamine residues in directing peptide structures that lead to neurodegenerative diseases. Resonant ion-dip infrared (RIDIR) spectroscopy is used to record single-conformation infrared spectra in the NH stretch, amide I and amide II regions. Comparison of the experimental spectra with the predictions of calculations carried out at the DFT M05-2X/6-31+G(d) level of theory lead to firm assignments for the H-bonding architectures of a total of eight conformers of four molecules, including three in Z-Gln-OH, one in Z-Gln-NHMe, three in Ac-Gln-NHBn, and one in Ac-Ala-Gln-NHBn. The Gln side chain engages actively in forming H-bonds with nearest-neighbor amide groups, forming C8 H-bonds to the C-terminal side, C9 H-bonds to the N-terminal side, and an amide-stacked geometry, all with an extended (C5) peptide backbone about the Gln residue. The Gln side chain also stabilizes an inverse gamma-turn in the peptide backbone by forming a pair of H-bonds that bridge the gamma-turn and stabilize it. Finally, the entire conformer population of Ac-Ala-Gln-NHBn is funneled into a single structure that incorporates the peptide backbone in a type I beta-turn, stabilized by the Gln side chain forming a C7 H-bond to the central amide group in the beta-turn not otherwise involved in a hydrogen bond. This beta-turn backbone structure is nearly identical to that observed in a series of X-(AQ)-Y beta-turns in the protein data bank, demonstrating that the gas-phase structure is robust to perturbations imposed by the crystalline protein environment.

Effect of water and enzyme concentration on thermolysin-catalyzed solid-to-solid peptide synthesis.[Pubmed:10099315]

Biotechnol Bioeng. 1998 Jul 5;59(1):68-72.

We have studied a thermolysin-catalyzed solid-to-solid dipeptide synthesis using equimolar amounts of Z-Gln-OH and H-Leu-NH2 as model substrates. The high substrate concentrations make this an effective alternative to enzymatic peptide synthesis in organic solvents. Water content was varied in the range of 0 to 600 mL water per mol substrate and enzyme concentration in the range of 0.5 to 10 g/mol of substrates. High yields around 80% conversion and initial rates from 5 to 20 mmol s-1 kg-1 were achieved. The initial rate increases 10-fold on reducing the water content, to reach a pronounced optimum at 40 mL water per mol substrate. Below this, the rate falls to much lower values in a system with no added water, and to zero in a rigorously dried system. This behavior is discussed in terms of two factors: At higher water contents the system is mass transfer limited (as shown by varying enzyme content), and the diffusion distances required vary. At low water levels, effects reflect the stimulation of the enzymatic activity by water.

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