Fmoc-S-trityl-D-cysteine
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Fmoc-S-trityl-D-cysteine

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Category
Fmoc-Amino Acids
Catalog number
BAT-003840
CAS number
167015-11-4
Molecular Formula
C37H31NO4S
Molecular Weight
585.70
Fmoc-S-trityl-D-cysteine
IUPAC Name
(2S)-2-(9H-fluoren-9-ylmethoxycarbonylamino)-3-tritylsulfanylpropanoic acid
Synonyms
Fmoc-D-Cys(Trt)-OH; Fmoc-S-trityl-D-cysteine; N-Fmoc-S-trityl-D-cysteine; N-[(9H-Fluoren-9-ylmethoxy)carbonyl]-S-(triphenylmethyl)-D-cysteine
Appearance
White powder
Purity
≥ 99.9% (HPLC, Chiral purity)
Density
1.270±0.06 g/cm3
Melting Point
170-180 °C
Boiling Point
763.4±60.0 °C
Storage
Store at 2-8 °C
InChI
InChI=1S/C37H31NO4S/c39-35(40)34(38-36(41)42-24-33-31-22-12-10-20-29(31)30-21-11-13-23-32(30)33)25-43-37(26-14-4-1-5-15-26,27-16-6-2-7-17-27)28-18-8-3-9-19-28/h1-23,33-34H,24-25H2,(H,38,41)(H,39,40)/t34-/m1/s1
InChI Key
KLBPUVPNPAJWHZ-UUWRZZSWSA-N
Canonical SMILES
C1=CC=C(C=C1)C(C2=CC=CC=C2)(C3=CC=CC=C3)SCC(C(=O)O)NC(=O)OCC4C5=CC=CC=C5C6=CC=CC=C46

Fmoc-S-trityl-D-cysteine, a versatile protected amino acid derivative, finds extensive application in peptide synthesis and research. Explore the high degree of perplexity and burstiness in four key applications of Fmoc-S-trityl-D-cysteine:

Peptide Synthesis: In the realm of solid-phase peptide synthesis, Fmoc-S-trityl-D-cysteine plays a pivotal role by incorporating safeguarded cysteine residues into peptide chains. The trityl group shields the thiol side chain, preventing unintended reactions and streamlining the synthesis process. This protective mechanism facilitates the creation of peptides with impeccably defined sequences and functionalities, enhancing precision and control in peptide engineering.

Structural Biology: Delving into the intricate realm of protein structure and function, Fmoc-S-trityl-D-cysteine proves instrumental in crafting cysteine-containing peptides essential for structural biology studies. This derivative aids in synthesizing peptides that form crucial disulfide bridges, vital for upholding the structural integrity of proteins. These specialized peptides serve as invaluable tools for investigating folding patterns, stability, and intermolecular interactions within proteins, providing key insights into molecular architecture.

Drug Development: An indispensable component in peptide drug design, Fmoc-S-trityl-D-cysteine enables the targeted inclusion of cysteine residues, facilitating the formation of active conformations in peptide drug candidates. This tailored approach is particularly significant in creating bioactive peptides like enzyme inhibitors and receptor agonists. The accurate synthesis of these peptides not only expedites drug development but also fuels the discovery of novel therapeutic agents, underscoring the role of Fmoc-S-trityl-D-cysteine in pharmaceutical innovation.

Proteomics: Within the realm of proteomics research, Fmoc-S-trityl-D-cysteine emerges as a crucial tool for synthesizing peptide probes that interact with specific protein targets. These meticulously crafted probes serve as invaluable assets in identifying and quantifying proteins within complex biological samples. The precise manipulation of the cysteine residue ensures the probe’s functionality remains intact during binding assays and mass spectrometry analysis, empowering researchers with precise control over protein interaction studies.

1.A 'conovenomic' analysis of the milked venom from the mollusk-hunting cone snail Conus textile--the pharmacological importance of post-translational modifications.
Bergeron ZL1, Chun JB, Baker MR, Sandall DW, Peigneur S, Yu PY, Thapa P, Milisen JW, Tytgat J, Livett BG, Bingham JP. Peptides. 2013 Nov;49:145-58. doi: 10.1016/j.peptides.2013.09.004. Epub 2013 Sep 18.
Cone snail venoms provide a largely untapped source of novel peptide drug leads. To enhance the discovery phase, a detailed comparative proteomic analysis was undertaken on milked venom from the mollusk-hunting cone snail, Conus textile, from three different geographic locations (Hawai'i, American Samoa and Australia's Great Barrier Reef). A novel milked venom conopeptide rich in post-translational modifications was discovered, characterized and named α-conotoxin TxIC. We assign this conopeptide to the 4/7 α-conotoxin family based on the peptide's sequence homology and cDNA pre-propeptide alignment. Pharmacologically, α-conotoxin TxIC demonstrates minimal activity on human acetylcholine receptor models (100 μM, <5% inhibition), compared to its high paralytic potency in invertebrates, PD50 = 34.2 nMol kg(-1). The non-post-translationally modified form, [Pro](2,8)[Glu](16)α-conotoxin TxIC, demonstrates differential selectivity for the α3β2 isoform of the nicotinic acetylcholine receptor with maximal inhibition of 96% and an observed IC50 of 5.
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