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Targeted therapy! The Capetin Prize winning "Click Chemistry" can be used like this!Targeted therapy! The Nobel Prize winning "Click Chemistry" can be used like this!2025-02-06
24 Results for "
lysine side chains
" in MedChemExpress (MCE) Product Catalog:
Products (24)
24 Results for "lysine side chains" in MCE Product Catalog:
1
1 Cited Publications
Cat. No.: HY-48999A
CAS No.: 3033987-42-4
FSK hydrochloride is fluorosulfonyloxybenzoyl-L-lysine, which features a long, flexible aryl fluorosulfate-containing side chain that can reach protein sites inaccessible to covalent conjugation. FSK hydrochloride modifies nanomolecules to target epidermal growth factor receptor (EGFR), resulting in irreversibly bound covalent interactions. Through genetically encoded chemical crosslinking, FSK hydrochloride captures unknown enzyme-substrate interactions in living cells, targets residues other than Cys, and mediates crosslinking at the binding periphery. FSK hydrochloride enables the construction of a bioreactive SuFEx system for generating covalent bonds in various proteins both in vitro and in vivo .
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DBCO-PEG24-NHS ester is a click chemistry reagent. DBCO-PEG24-NHS ester is a click chemistry PEG reagent containing NHS ester that is able to react specifically and efficiently with primary amines (e.g. the side chain of lysine residues or aminosilane-coated surfaces) at neutral or slightly basic condition to form a covalent bond. The hydrophilic PEG spacer arm improves water solubility and provides a long and flexible connection that minimizes steric hindrance involved with ligation. DBCO is commonly used for copper-free Click Chemistry reactions. Reagent grade, for research use only .
Synonyms: BAY 1187982
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DBCO-PEG2-NHS ester is a click chemistry reagent containing an azide group. DBCO-PEG2-NHS ester is a click chemistry PEG reagent containing NHS ester that is able to react specifically and efficiently with primary amines (e.g. the side chain of lysine residues or aminosilane-coated surfaces) at neutral or slightly basic condition to form a covalent bond. The hydrophilic PEG spacer arm improves water solubility and provides a long and flexible connection that minimizes steric hindrance involved with ligation. DBCO is commonly used for copper-free Click Chemistry reactions. Reagent grade, for research use only .
Cat. No.: HY-160773
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DBCO-PEG6-NHS ester is a click chemistry PEG reagent containing an NHS ester that reacts specifically with primary amines, such as side chains of lysine residues or aminosilane-coated surfaces, under neutral or slightly alkaline conditions. , efficient reaction to form covalent bonds. DBCO-PEG6-NHS ester also contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups .
Cat. No.: HY-W012166
CAS No.: 42014-51-7
Synonyms: NHS-Bromoacetate
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N-Succinimidyl bromoacetate (NHS-Bromoacetate) is a heterobifunctional crosslinking reagent, mainly used to modify the ɛ-amino group of lysine side chains. By covalently linking its bromoacetyl moiety to the ɛ-amino group of lysine in peptidomimetics, N-Succinimidyl bromoacetate enables their conjugation with thiol-modified nanoparticles via thioether bonds. N-Succinimidyl bromoacetate also performs bromoacetylation modification on carrier proteins, which then forms stable thioether bonds with the thiol groups of cysteine in peptides, thus efficiently preparing soluble peptide-protein conjugates with high substitution ratios. N-Succinimidyl bromoacetate can be used to prepare activated Sepharose derivatives for affinity chromatography, protein affinity labeling reagents, and peptide-protein immunogen conjugates with non-immunogenic linkages. N-Succinimidyl bromoacetate is applicable to studies related to HIV-1 infection and glioblastoma multiforme .
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MTSEA hydrobromide is a sulfhydryl-reactive compound that modifies free cysteine residues to produce a positively charged side chain approximately the size of lysine .
Cat. No.: HY-W848699
CAS No.: 890090-41-2
Cat. No.: HY-W591479
CAS No.: 1895916-22-9
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MC-Val-Ala-NHS ester is a cleavable ADC linker with a malimide group and an NHS ester group. The Val-Ala linkers can be cleaved by Cathepsin B. Maleimide group is reactive toward thiol groups. MC is reactive with thiol moieties. The NHS ester is able to react specifically and efficiently with amines (e.g. the side chain of lysine residues or aminosilane-coated surfaces) at neutral or slightly basic condition to form a covalent bond.
Cat. No.: HY-118112
CAS No.: 64191-06-6
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4-N-Maleimidobenzoicacid-NHS is a PEG linker that finds utility in bioconjugation endeavors and protein labeling ventures. Specifically designed for selective reaction with thiol groups, the maleimide group establishes covalent linkages, thereby facilitating the coupling of proteins, peptides, or diverse molecules to thiol-bearing biomolecules. The NHS ester is able to react specifically and efficiently with primary amines (e.g. the side chain of lysine residues or aminosilane-coated surfaces) at neutral or slightly basic conditions to form a covalent bond.
Cat. No.: HY-123564
CAS No.: 2012563-34-5
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Mcl1-IN-7 (compound 11) is a reversible covalent inhibitor of Mcl-1 with the activity of inhibiting Mcl-1. By covalently targeting the non-catalytic lysine side chain of Mcl-1, it has higher potency than non-covalent counterparts and can be used to develop Mcl-1 inhibitory compounds and study related biological phenomena.
Cat. No.: HY-W739603
CAS No.: 252255-42-8
Cat. No.: HY-116220
CAS No.: 2012563-29-8
Mcl1-IN-14 (compound 5) is a reversible covalent inhibitor of Mcl-1 with the activity of inhibiting Mcl-1. Mcl1-IN-14 covalently targets the non-catalytic lysine side chain of Mcl-1 and has higher potency than non-covalent counterparts, which can be used to develop Mcl-1 inhibitory compounds and study related biological phenomena.
Cat. No.: HY-160773A
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DBCO-C3-amide-PEG6-NHS ester is a click chemistry PEG reagent containing an NHS ester that reacts specifically with primary amines, such as side chains of lysine residues or aminosilane-coated surfaces, under neutral or slightly alkaline conditions. , efficient reaction to form covalent bonds. DBCO-C3-amide-PEG6-NHS ester also contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups .
Cat. No.: HY-136112
CAS No.: 14464-29-0
Synonyms: Succinimidyl acetate; Ac-OSu
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N-Succinimidyl acetate (Succinimidyl acetate; Ac-OSu) is a bioconjugation and peptide synthesis reagent. N-Succinimidyl acetate performs acetylation modification on the N-terminus and lysine side chains of proteins. N-Succinimidyl acetate is applicable to research fields including protein labeling, vaccine development and targeted drug delivery .
Cat. No.: HY-E71022
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Trypsin Acetylated, Bovine (EC 3.4.21.4) is a serine protease from the PA clan superfamily, found in the digestive system of many vertebrates, where it hydrolyses proteins. Trypsin is produced in the pancreas as the inactive protease trypsinogen. Trypsin cleaves peptide chains mainly at the carboxyl side of the amino acids lysine or arginine, except when either is followed by proline.
Cat. No.: HY-W190948
CAS No.: 905735-81-1
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10-(tert-Butoxy)-10-oxodecanoic NHS ester has a t-butyl ester group and an NHS ester moiety. The t-butyl group can be deprotected under acidic conditions. NHS ester can react specifically and efficiently with primary amines such as the side chain of lysine residues or aminosilane-coated surfaces at neutral or slightly basic condition to form a covalent bond.
Cat. No.: HY-W190906
CAS No.: 402958-62-7
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6-(tert-Butoxy)-6-oxohexanoic NHS ester has a t-butyl ester group and an NHS ester moiety. The t-butyl group can be deprotected under acidic conditions. NHS ester can react specifically and efficiently with primary amines such as the side chain of lysine residues or aminosilane-coated surfaces at neutral or slightly basic condition to form a covalent bond.
Cat. No.: HY-L913
105 compounds
Recently, significant advancements in tyrosine-targeting electrophiles have primarily occurred in the field of protein-protein interactions (PPIs), where cysteine residues are often underrepresented and novel chemistries are needed to address these interfaces. In this context, tyrosines are frequently more accessible compared to more buried binding sites. Moreover, they are commonly found at "hot spots," which are functional epitopes of PPIs, with 12.3% of the residues consisting of tyrosines. This prevalence is likely due to the hydrophobic nature of tyrosine, its ability to participate in aromatic π-interactions, and its capacity for hydrogen bonding. Beyond PPIs, some progress has also been made in covalent tyrosine targeting in other areas where more commonly addressed side chains are lacking. Even though tyrosine has a slightly lower pKa value compared to the protonated lysine side chain (approximately 10 vs. 10.5 for the unprotected amino acid side chains), significantly less progress has been made in the development of tyrosine-targeted covalent ligands compared to lysine. This is likely due to the reduced flexibility of the tyrosine side chain and the greater steric hindrance of its hydroxy group, which makes it more challenging to adopt suitable reaction geometries.
Through careful selection, we constructed a structural filter containing over 110 electrophilic groups. By analyzing the electrophilic fragments selected by the structural filter, we removed any molecules with trivial or undesirable structural features. Ultimately, we obtained 124 fragment molecules which can target tyrosine residue and can be used for fragment-based covalent drug discovery.
Cat. No.: HY-W190920
CAS No.: 2411681-93-9
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t-Butoxycarbonyl-PEG2-NHS ester has a t-Boc protecting group and an NHS ester moiety. The t-butyl group can be deprotected under acidic conditions. NHS ester can react specifically and efficiently with primary amines such as the side chain of lysine residues or aminosilane-coated surfaces at neutral or slightly basic condition to form a covalent bond. The hydrophilic PEG linker increases the water solubility of the compound in aqueous media.
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Protocols
Targeted therapy! The Capetin Prize winning "Click Chemistry" can be used like this!Targeted therapy! The Nobel Prize winning "Click Chemistry" can be used like this!A suitable model is crucial in drug screening experiments. Organs can mimic the three-dimensional functional structure of internal organs, have similar spatial organization to corresponding organs, maintain some key characteristics, and reproduce some physiological functions. They are widely used for modeling and personalized drug screening physiological functions.2025-02-06
