Boc-O-benzyl-D-serine N-hydroxysuccinimide ester
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Boc-O-benzyl-D-serine N-hydroxysuccinimide ester

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Category
BOC-Amino Acids
Catalog number
BAT-002857
CAS number
82155-85-9
Molecular Formula
C19H24N2O7
Molecular Weight
392.40
Boc-O-benzyl-D-serine N-hydroxysuccinimide ester
IUPAC Name
(2,5-dioxopyrrolidin-1-yl) (2R)-2-[(2-methylpropan-2-yl)oxycarbonylamino]-3-phenylmethoxypropanoate
Synonyms
Boc-D-Ser(Bzl)-Osu; (R)-2,5-Dioxopyrrolidin-1-yl 3-(benzyloxy)-2-((tert-butoxycarbonyl)amino)propanoate
Appearance
White powder
Purity
≥ 98% (TLC)
Melting Point
106-110 °C
Storage
Store at-20 °C
InChI
InChI=1S/C19H24N2O7/c1-19(2,3)27-18(25)20-14(12-26-11-13-7-5-4-6-8-13)17(24)28-21-15(22)9-10-16(21)23/h4-8,14H,9-12H2,1-3H3,(H,20,25)/t14-/m1/s1
InChI Key
NTFYOALQRQBBDG-CQSZACIVSA-N
Canonical SMILES
CC(C)(C)OC(=O)NC(COCC1=CC=CC=C1)C(=O)ON2C(=O)CCC2=O
1. Fmoc N-hydroxysuccinimide ester: A facile and multifunctional role in N-glycan analysis
Chang Wang, Yike Wu, Sheng Liu, Liang Zhang, Bi-Feng Liu, Xin Liu Anal Chim Acta. 2020 Sep 22;1131:56-67. doi: 10.1016/j.aca.2020.07.044. Epub 2020 Jul 30.
N-glycans that are fluorescently tagged by glycosylamine acylation have become a promising way for glycan biomarker discovery. Here, we describe a simple and rapid method using Fmoc N-hydroxysuccinimide ester (Fmoc-OSu) to label N-glycans by reacting with their corresponding intermediate glycosylamines produced by microwave-assisted deglycosylation. After optimizing reaction conditions, this derivatization reaction can be effectively achieved under 40 °C for 1 h. Moreover, the comparison of fluorescent intensities for Fmoc-OSu, Fmoc-Cl and 2-AA labeling strategies were also performed. Among which, the fluorescent intensities of Fmoc-OSu labeled glycan derivatives were approximately 5 and 13 times higher than that labeled by Fmoc-Cl and 2-AA respectively. Furthermore, the developed derivatization strategy has also been applied for analyzing serum N-glycans, aiming to screen specific biomarkers for early diagnosis of lung squamous cell cancer. More interestingly, the preparation of free reducing N-glycan standards have been achieved by the combination of HPLC fraction of Fmoc labeled glycan derivatives and Fmoc releasing chemistry. Overall, this proposed method has the potential to be used in functional glycomic study.
2. Amine coupling through EDC/NHS: a practical approach
Marcel J E Fischer Methods Mol Biol. 2010;627:55-73. doi: 10.1007/978-1-60761-670-2_3.
Surface plasmon resonance (SPR) is one of the leading tools in biomedical research. The challenge in its use is the controlled positioning of one of the components of an interaction on a carefully designed surface. Many attempts in interaction analysis fail due to the non-functional or unsuccessful immobilization of a reactant onto the complex matrix of that surface. The most common technique for linking ligands covalently to a hydrophilic solid surface is amine coupling via reactive esters. In this chapter detailed methods and problem discussions will be given to assist in fast decision analysis to optimize immobilization and regeneration. Topics in focus are different coupling techniques for small and large molecules, streptavidin-biotin sandwich immobilization, and optimizing regeneration conditions.
3. Selective protein N-terminal labeling with N-hydroxysuccinimide esters
Hanjie Jiang, Gabriel D D'Agostino, Philip A Cole, Daniel R Dempsey Methods Enzymol. 2020;639:333-353. doi: 10.1016/bs.mie.2020.04.018. Epub 2020 Apr 28.
In order to gain detailed insight into the biochemical behavior of proteins, researchers have developed chemical tools to incorporate new functionality into proteins beyond the canonical 20 amino acids. Important considerations regarding effective chemical modification of proteins include chemoselectivity, near stoichiometric labeling, and reaction conditions that maintain protein stability. Taking these factors into account, we discuss an N-terminal labeling strategy that employs a simple two-step "one-pot" method using N-hydroxysuccinimide (NHS) esters. The first step converts a R-NHS ester into a more chemoselective R-thioester. The second step reacts the in situ generated R-thioester with a protein that harbors an N-terminal cysteine to generate a new amide bond. This labeling reaction is selective for the N-terminus with high stoichiometry. Herein, we provide a detailed description of this method and further highlight its utility with a large protein (>100kDa) and labeling with a commonly used cyanine dye.
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