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A1057

Sigma-Aldrich

L-Aspartic acid β-(7-amido-4-methylcoumarin)

≥98%, suitable for ligand binding assays

Synonym(s):

L-Aspartic acid β-(4-methyl-7-coumarinylamide), L-Aspartic acid 4-(4-methyl-7-coumarinylamide)

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About This Item

Empirical Formula (Hill Notation):
C14H14N2O5
CAS Number:
133628-73-6
Molecular Weight:
290.27
MDL number:
MFCD00236804
UNSPSC Code:
12352209
PubChem Substance ID:
24890500
NACRES:
NA.26

product name

L-Aspartic acid β-(7-amido-4-methylcoumarin), fluorescent amino acid

Quality Level

200

Assay

≥98%

form

powder

technique(s)

ligand binding assay: suitable

color

white to off-white

storage temp.

−20°C

SMILES string

CC1=CC(=O)Oc2cc(NC(=O)C[C@H](N)C(O)=O)ccc12

InChI

1S/C14H14N2O5/c1-7-4-13(18)21-11-5-8(2-3-9(7)11)16-12(17)6-10(15)14(19)20/h2-5,10H,6,15H2,1H3,(H,16,17)(H,19,20)/t10-/m0/s1

InChI key

ARZPQBJTLVVDNP-JTQLQIEISA-N

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Biochem/physiol Actions

L-Aspartic acid β-(7-amido-4-methylcoumarin) is used as a fluorogenic substrate for studying the specificity and kinetics of lysosomal glycoasparaginase(s) (aspartylglucosaminidase) and L-asparaginase(s).
L-Aspartic acid-β-7-amido-4-methylcoumarin is sensitive and specific fluorogenic substrate used to assay for lysosomal glycoasparaginase (aspartylglucosaminidase) activity and the diagnosis of aspartylglucosaminuria.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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P Ylikangas et al.
Analytical biochemistry, 280(1), 42-45 (2000-05-11)
The antineoplastic enzyme L-asparaginase is commonly used for the induction of remission in acute lymphoblastic leukemia (ALL). There is no simple method available for measuring the activity of this highly toxic drug. We incubated L-asparaginase from Erwinia chrysanthemi with L-aspartic
I Mononen et al.
Clinical chemistry, 40(3), 385-388 (1994-03-01)
Serum, plasma, and lymphocytes from aspartylglycosaminuria (AGU) patients and carriers and from normal controls were incubated with a fluorescent glycosylasparaginase substrate, L-aspartic acid beta-(7-amido-4-methylcoumarin), and the release of 7-amino-4-methylcoumarin was measured fluorometrically after incubation for 1-4 h. The mean glycosylasparaginase
I T Mononen et al.
Analytical biochemistry, 208(2), 372-374 (1993-02-01)
Recent experimental work on the mechanism of action of glycosylasparaginase suggests that the enzyme specifically reacts toward the L-asparagine or L-aspartic acid moiety of its substrates. Based on this, a new sensitive assay for glycosylasparaginase activity has been developed using
Seiji Saito et al.
Biochemical and biophysical research communications, 377(4), 1168-1172 (2008-11-11)
To elucidate the basis of aspartylglucosaminuria (AGU) from the viewpoint of enzyme structure, we constructed structural models of mutant aspartylglucosaminidase (AGA) proteins using molecular modeling software, TINKER. We classified the amino acid substitutions responsible for AGU and divided them into
Voznyi YaV et al.
Journal of inherited metabolic disease, 16(6), 929-934 (1993-01-01)
L-Aspartic acid-beta-7-amido-4-methylcoumarin is a sensitive and specific fluorogenic substrate for lysosomal glycoasparaginase (aspartylglucosaminidase). Fibroblasts and leukocytes from 8 patients with aspartylglucosaminuria, showed 1-7% of the mean normal glycoasparaginase activity. Heterozygotes showed intermediate activities. Glycoasparaginase activity in chorionic villi, cultured trophoblasts

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