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F4165

Sigma-Aldrich

Ficin from fig tree latex

powder, ≥0.1 unit/mg solid

Sinónimos:

Debricin, Ficain, higueroxyl delabarre

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About This Item

Número de CAS:
9001-33-6
Comisión internacional de enzimas:
3.4.22.3 (BRENDA, IUBMB)
EC Number:
232-599-1
MDL number:
MFCD00081597
UNSPSC Code:
12352204
NACRES:
NA.54

biological source

fig tree (latex)

form

powder

specific activity

≥0.1 unit/mg solid

mol wt

23.8 kDa

storage temp.

−20°C

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General description

Extinction Coefficient: E1% = 21.0 (280 nm)
pI: 9.0

Biochem/physiol Actions

Ficin is classified as a thiol protease. It contains a single reactive cysteine at its active site. The amino acid homology of the active site is similar to that of papain. Ficin will cleave proteins at the carboxyl side of Gly, Ser, Thr, Met, Lys, Arg, Tyr, Ala, Asn, and Val. The reported Km for the chromogenic substrate pGlu-Phe-Leu-p-nitroanilide is 0.43 mM. Ficin is inhibited by iodoacetamide, iodoacetic acid, N-ethylmaleimide, mercuric chloride, DFP (diisopropyl fluorophosphate), TLCK (Na-p-Tosyl-lysine chloromethyl ketone), and TPCK (N-Tosyl-L-phenylalanine chloromethyl ketone). Ficin can be used to generate high yielding F (ab′)2 fragments from mouse IgG1.

Unit Definition

One unit will produce a ΔA280 of 1.0 per min at pH 7.0 at 37 °C when measuring TCA soluble products from casein in a final volume of 10 ml (1 cm light path).
The enzyme is soluble in 1 M potassium phosphate buffer, pH 7.0 (0.25 mg/ml), yielding a clear solution.

inhibitor

Referencia del producto
Descripción
Precios

E3132

E-64, protease inhibitor

substrate

Referencia del producto
Descripción
Precios

pictograms

Health hazardExclamation mark
GHS08,GHS07

signalword

Danger

Hazard Classifications

Eye Irrit. 2 - Resp. Sens. 1 - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Storage Class

11 - Combustible Solids

wgk_germany

WGK 1

ppe

dust mask type N95 (US), Eyeshields, Faceshields, Gloves

Certificados de análisis (COA)

Busque Certificados de análisis (COA) introduciendo el número de lote del producto. Los números de lote se encuentran en la etiqueta del producto después de las palabras «Lot» o «Batch»

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Pepsin lyophilized (salt-free), ~2500 units/mg protein (At 37 °C with hemoglobin as the substrate. One unit is the enzyme activity which liberates the amount of Tyr producing an increase in the absorbance of 0.001/minute at 280 nm.)

Roche

10108057001

Pepsin

Yufang Yang et al.
Scientific reports, 7, 43141-43141 (2017-02-23)
Ficin is classified as a sulfhydryl protease isolated from the latex of fig trees. In most cases, a particular enzyme fits a few types of substrate and catalyzes one type of reaction. In this investigation, we found sufficient proofs for
K B Devaraj et al.
International journal of biological macromolecules, 45(3), 248-254 (2009-06-02)
Effect of pH on the conformational behaviour of ficin (EC 3.4.22.3), a cysteine protease from the latex of Ficus carica was monitored by circular dichroism, fluorescence spectroscopy, ANS binding and hydrodynamic studies. The results obtained from near- and far-UV CD
Michèle Himmelspach et al.
Thrombosis and haemostasis, 88(6), 1003-1011 (2003-01-17)
The development of inhibitory antibodies is a serious complication in hemophilic patients, severely compromising therapeutic success. Bleeding episodes in affected patients are controlled by treatment with a plasma-derived prothrombin complex concentrate (PCC), activated PCC (APCC) or recombinant activated factor VII.
J D Reid et al.
The Biochemical journal, 357(Pt 2), 343-352 (2001-07-06)
The possibility of a slow post-acylation conformational change during catalysis by cysteine proteinases was investigated by using a new chromogenic substrate, N-acetyl-Phe-Gly methyl thionoester, four natural variants (papain, caricain, actinidin and ficin), and stopped-flow spectral analysis to monitor the pre-steady
Sadami Ohtsubo et al.
Journal of agricultural and food chemistry, 53(13), 5218-5224 (2005-06-23)
On the basis of cDNA sequences, we found that the calli of rice encodes an amino acid sequence that shares 56% and 89% identity, respectively, with oryzacystatin-I and oryzacystatin-II. This sequence differs from that of oryzacystatin-II in the N-terminal region
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Protocolos

Enzymatic Assay of Ficin (EC 3.4.22.3)

This procedure may be used for all Ficin products.

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