mca-ala-pro-lys(dnp)-oh

Mca-Ala-Pro-Lys(Dnp)-OH, a specific quenched fluorogenic substrate for ACE2, enables the detection of ACE2 activity in various tissues, including urinary, heart, and lung.

Boc-Val-Pro-Arg-MCA TFA is a sensitive fluorescent substrate that is a thrombin substrate for the determination of trypsin-like serine protease activity.

D-Ala-Lys-AMCA TFA is a proton-coupled oligopeptide transporter 1 (PEPT1) substrate known for emitting blue fluorescence. Fluorescence analysis has shown that this compound can be transported into liver cancer cells and Caco-2 cells. It is useful for characterizing PEPT1-specific substrates or inhibitors [1] [2].

Fmoc-Lys(5-FITC)-OH serves as a fluorescent marker for polypeptides and proteins, utilizing FITC—a pH and Cu^2+-sensitive dye—as its fluorescence probe for amine labeling [1] [2] [3].

Mca-(Ala7,Lys(Dnp)9)-bradykinin is a fluorogenic substrate that demonstrates high sensitivity for ECE-1 (endothelin-converting enzyme-1). It features a (7-methoxycoumarin-4-yl)acetyl (Mca) group for fluorescence and a 2,4-dinitrophenyl (Dnp) group for quenching, yielding a significant increase in fluorescence when the substrate is cleaved [1].

Mca-P-Cha-G-Nva-HA-Dap(DNP)-NH2 is a fluorogenic substrate used for quantifying the activity of matrix metalloproteinase-1 (MMP-1), MMP-3, and MMP-26, thus facilitating the measurement of these enzymes' activity [1] [2].

Abz-SDK(Dnp)P-OH is a fluorescent peptide that functions as a substrate for the angiotensin I-converting enzyme (ACE). It features a fluorescent donor-acceptor pair comprising Abz and Dnp (2,4-dinitrophenyl) [1].

Mca-(endo-1α-Dap(Dnp))-TNF-α(-5 to +6) amide (human) TFA is a peptide that functions as a fluorescence resonance energy transfer (FRET)-based substrate, with its activity determined by the change in fluorescence intensity following cleavage [1].

Mca-RPPGFSAFK(Dnp)-OH, a fluorogenic substrate specifically designed for endothelin-converting enzyme-1 (ECE-1), enables the quantification of ECE-1 activity through its distinctive fluorescence signal. When ECE-1 cleaves this substrate, it releases 7-methoxycoumarin-4-acetyl (Mca), which exhibits excitation and emission maxima at 328 nm and 420 nm, respectively, allowing for the direct measurement of enzyme activity.

Tos-Gly-Pro-Lys-AMC is a fluorogenic peptide substrate specific for tryptase [1].

Boc-Val-Pro-Arg-MCA hydrochloride (Boc-Val-Pro-Arg-MCA HCl) is a sensitive fluorescent substrate for the determination of trypsin-like serine proteases activity.

Mca-Lys-Pro-Leu-Gly-Leu-Dap(Dnp)-Ala-Arg-NH2 (FS-6) is a quenched, fluorescent MMP peptide substrate designed for real-time quantification of MMP enzymatic activity. As an extended variant of the MMP substrate (FS-1), it demonstrates increased specificity against collagenases (MMP-1, MMP-8, MMP-13) and MT1-MMP, with higher specificity constants (Ex Em=325 nm 400 nm). [1]

β-Ala-Lys(AMCA) serves as a multifunctional dye, crucial in biological experiments. It aids researchers in observing cell structures, tracking biomolecules, evaluating cell functions, distinguishing cell types, detecting biomolecules, studying tissue pathology, and monitoring microorganisms. Its applications span from basic scientific research to clinical diagnostics. Additionally, dyes are extensively used in traditional and emerging fields, including textile dyeing, functional textile processing, food pigments, and dye-sensitized solar cells.

Mca-KPLGL-Dap(Dnp)-AR-NH2 serves as a fluorogenic substrate specifically designed for matrix metalloproteinases (MMPs). This compound facilitates the quantification of MMP activity by releasing 7-methoxycoumarin-4-acetyl (Mca) upon enzymatic cleavage by MMPs, which exhibits fluorescence with excitation and emission maxima at 328 nm and 420 nm, respectively.

Mca-YVADAP-Lys(Dnp)-OH TFA is a fluorogenic substrate specifically used for caspase-1 and angiotensin-converting enzyme 2 (ACE2) [1].

Mca-SEVNLDAEFK(Dnp)-NH2 is a fluorogenic substrate featuring a 7-methoxycoumarin moiety whose fluorescence is quenched by the adjacent 2,4-dinitrophenyl group through resonance energy transfer. This compound serves as a probe for assessing peptidase activity; enzymatic cleavage of the amide bond separating the fluorophore and quencher results in increased fluorescence. It is particularly useful for quantifying the activity of BACE-1 [1].

D-Ala-Lys-AMCA TFA is a known substrate of proton-coupled oligopeptide transporter 1 (PEPT1) that emits blue fluorescence. D-Ala-Lys-AMCA TFA may be transported into Caco-2 cells and liver cancer cells.

Mca-AVLQSGFR-K(Dnp)-K-NH2 serves as a fluorogenic substrate specifically designed for the main protease (Mpro) of the severe acute respiratory syndrome coronavirus (SARS-CoV), also referred to as 3C-like protease (3CLpro). This substrate, upon enzymatic cleavage by SARS-CoV Mpro, liberates 7-methoxycoumarin-4-acetyl (Mca) which emits fluorescence. This fluorescence emission, with excitation/emission peaks at 328/420 nm respectively, facilitates the quantification of SARS-CoV Mpro's catalytic activity.

Mca-SEVNLDAEFR-K(Dnp)-RR-NH2 is a fluorogenic substrate designed for the quantification of β-secretase (BACE) activity. When cleaved by BACE, it liberates 7-methoxycoumarin-4-acetyl (Mca), a compound whose fluorescence, with excitation and emission peaks at 328 nm and 420 nm respectively, serves as a measurable indicator of BACE enzymatic action.

D-Ala-Lys-AMCA, a known substrate of proton-coupled oligopeptide transporter 1 (PEPT1), emits blue fluorescence and may be transported into Caco-2 cells and liver cancer cells.

Ala-Phe-Pro-pNA, a chromogenic substrate of tripeptidyl peptidase, can be utilized to assess tripeptidyl peptidase activity [1].

Suc-Ala-Glu-Pro-Phe-pNA (Suc-AEPF-pNA) serves as a chromogenic substrate for the peptidylprolyl isomerase Pin1. It is utilized to assess Pin1's inhibition by target compounds and to evaluate its catalytic activity, among other applications [1] [2].

Mca-YVADAP-Lys(Dnp)-OH serves as a fluorogenic substrate specifically for caspase-1 and angiotensin-converting enzyme 2 (ACE2) [1].

Mca-DEVDAPK(Dnp)-OH is a fluorescent substrate for caspase-3.

DNP-Pro-Leu-Ala-Leu-Trp-Ala-Arg-OH serves as a substrate for the matrix metalloproteinase MMP-1, exhibiting a Michaelis constant (Km) of 26.61 μM. Additionally, this compound is employed as a fluorescence probe for monitoring protein activity [1].

Mca-SEVNLDAEFK(Dnp) is a peptide FRET substrate for Beta-secretase 1 (BACE-1), featuring the 'Swedish' Lys-Met Asn-Leu mutation at the β-secretase cleavage site of the amyloid precursor protein (APP). Cleavage at the -Leu-Asp- site of Mca-SEVNLDAEFK(Dnp) releases the highly fluorescent 7-methoxycoumarin (Mca) fragment, which is freed from the quenching effect of the 2,4-dinitrophenyl (Dnp) internal quencher, leading to a significantly increased fluorescence intensity that is easily detectable.