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SML2948

Sigma-Aldrich

Mca-APK(Dnp)-OH trifluoroacetate

≥97% (HPLC)

Synonym(s):

Mca-APK(Dnp) TFA salt (Mca = 7-Methoxycoumarin-4-yl; Dnp = 2,4-dinitrophenyl), Mca-Ala-Pro-Lys(Dnp) TFA salt, Mca-Ala-Pro-Lys(Dnp)-OH TFA salt

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About This Item

Empirical Formula (Hill Notation):
C32H36N6O12 · xC2HF3O2
Molecular Weight:
696.66 (free base basis)
UNSPSC Code:
12352200
NACRES:
NA.77

Quality Level

Assay

≥97% (HPLC)

form

film or powder

storage condition

desiccated

color

white to dark beige

storage temp.

−20°C

Biochem/physiol Actions

Mca-APK(Dnp)-OH is a widely used fluorescent substrate for angiotensin-converting enzyme 2 (ACE2 cleaves between P & K). Proteolytic cleavage separates 7-methoxycoumarin-4-acetyl (Mca) from the fluorescence-quenching group 2,4-dinitrophenyl (Dnp), resulting in increased Mca fluorescence (Ex: 320-328 nm, Em: 405-420 nm). The fluorescence increase over background upon Mca-APK(Dnp) cleavage is more than 14-fold higher than that of Mca-YVADAPK(Dnp), while only Mca-YVADAPK(Dnp), but not Mca-APK(Dnp), can also be used for assessing caspase-1 (ICE) activity.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

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Danielle Stoll et al.
Physiological reports, 7(11), e14105-e14105 (2019-06-06)
The kidney is an important target of the renin-ANG-aldosterone system (RAAS). To date, several studies have demonstrated the existence of a local RAAS in various tissues, including the renal tissue. The mineralocorticoid aldosterone is known to play a critical role
Chintan K Gandhi et al.
Lung, 197(2), 227-233 (2019-02-14)
Pancreatic digestive enzymes present in meconium might be responsible for meconium-induced lung injury. The local Renin Angiotensin System plays an important role in lung injury and inflammation. Particularly, angiotensin converting enzyme-2 (ACE-2) has been identified as a protective lung enzyme against
Charles E Evans et al.
Acta neuropathologica, 139(3), 485-502 (2020-01-27)
Mid-life hypertension and cerebrovascular dysfunction are associated with increased risk of later life dementia, including Alzheimer's disease (AD). The classical renin-angiotensin system (cRAS), a physiological regulator of blood pressure, functions independently within the brain and is overactive in AD. cRAS-targeting
Aline Maria Arlindo De Souza et al.
Physiological reports, 8(1), e14338-e14338 (2020-01-12)
We previously showed that 2 weeks of a severe food restricted (sFR) diet (40% of the caloric intake of the control (CT) diet) up-regulated the circulating renin angiotensin (Ang) system (RAS) in female Fischer rats, most likely as a result of
Jan Wysocki et al.
Biomolecules, 9(12) (2019-12-22)
ACE2 is a monocarboxypeptidase which generates Angiotensin (1-7) from Angiotensin II (1-8). Attempts to target the kidney Renin Angiotensin System using native ACE2 to treat kidney disease are hampered by its large molecular size, 100 kDa, which precludes its glomerular

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