The enzyme may be reconstituted at 1 mg/ml in 10 mM sodium acetate buffer, pH 7.5 with 5 mM calcium acetate. Historical data also note that this material may be reconstituted in PBS or other physiologic buffers containing Ca2+, culture medium, or water; however, no concentration is provided.
D4818
Dispase I
protease
Synonyme(s) :
Protéase from Bacillus polymyxa
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A propos de cet article
Specific activity:
≥10 unit/mg solid
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form
lyophilized solid
specific activity
≥10 unit/mg solid
technique(s)
cell culture | mammalian: suitable, single cell analysis: suitable
storage temp.
2-8°C
Application
Dispase I has been used in a study to assess the effect of amniotic membrane on wound size in the early stages of the healing process. Dispase I has also been used in a study to investigate a dityrosine-based substrate for a protease assay.
Dispase I has been used in lung digestion and processing for flow staining, as well as for CD4 cell isolation in mice.[1] The enzyme has also been used to digest excised wounds and a small amount of surrounding skin for the detection of GFP+ (green fluorescence protein) cells. This study to investigated the effect of differentiation and angiogenesis of bone marrow-derived mesenchymal stem cells on wound healing.[2] It has also been used to remove the epidermis during the isolation of dermal fibroblasts from mice.[3]
Suitable for use in preparation of single cell suspension for sequencing.
Suitable for use in preparation of single cell suspension for sequencing.
Biochem/physiol Actions
Dispase I is a rapid, effective, gentle and neutral protease that can separate intact epidermis from the dermis. It can also separate intact epithelial sheets in culture from the substratum. The enzyme preserves the viability of the epithelial cells while cleaving the basement membrane zone region. It can also be used to prevent clumping in suspension cultures. This protease cleaves fibronectin and type IV collagen, but not laminin, type V collagen, serum albumin, or transferrin.[4] It hydrolyzes N-terminal peptide bonds of non-polar amino acid residues. It preferentially attacks denatured and intercellular proteins with exposed hydrophobic amino acid residues. Ca2+, Mg2+, Mn2+, Fe2+, Fe3+ and Al3+ activate the enzyme. EDTA, EGTA, Hg2+ and other heavy metals inhibit the enzyme activity.[5] The enzyme contains 1g-atom of zinc per g-mol of purified enzyme. If this zinc component is removed by chelating agents such as EDTA or EGTA, an inactive apoenzyme is obtained. The enzyme is not inhibited by serum.
Physical form
lyophilized powder containing calcium acetate
Other Notes
One unit will hydrolyze casein to produce color equivalent to 1.0 μmole (181 μg) of tyrosine per min at pH 7.5 at 37 °C (color by Folin-Ciocalteu reagent), unless otherwise indicated.
Legal Information
Dispase is a registered trademark of Godo Shusei Co., Ltd.
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Cet article | |||
|---|---|---|---|
| specific activity ≥10 unit/mg solid | specific activity ≥0.5 units/mg solid | specific activity 30-350 units/mg protein (E1%/280) | specific activity ≥125 CDU/mg solid, 0.5-5.0 FALGPA units/mg solid |
| technique(s) cell culture | mammalian: suitable, single cell analysis: suitable | technique(s) cell culture | mammalian: suitable, single cell analysis: suitable | technique(s) cell culture | mammalian: suitable, single cell analysis: suitable | technique(s) cell culture | mammalian: suitable, single cell analysis: suitable |
| form lyophilized solid | form lyophilized solid | form powder | form essentially salt-free, lyophilized powder |
| storage temp. 2-8°C | storage temp. 2-8°C | storage temp. −20°C | storage temp. −20°C |
| Quality Level 200 | Quality Level 100 | Quality Level 200 | Quality Level 200 |
signalword
Danger
hcodes
Hazard Classifications
Eye Irrit. 2 - Resp. Sens. 1 - Skin Irrit. 2 - STOT SE 3
target_organs
Respiratory system
Classe de stockage
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
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How to disolve dispase? Can I use mediums as DMEM, PBS ...?
1 answer-
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What is the Department of Transportation shipping information for this product?
1 answer-
Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.
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At what concentration should Product D4818, Dispase, be used?
1 answer-
To dissociate cells from ECM (extracellular matrix) use at a concentration of 0.6 - 2.4 units/ml.
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What is the solubility of Product D4818, Dispase I?
1 answer-
The enzyme may be reconstituted at 1 mg/ml in 10 mM sodium acetate buffer, pH 7.5 with 5 mM calcium acetate.
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What is the difference between Product D4693, Dispase II and Product D4818, Dispase I?
1 answer-
Product D4693 is a lyophilized powder containing calcium acetate and milk sugar as a stabilizer. The activity specification is >0.5 unit/mg solid. Product D4818 does not contain any milk sugar and has an activity specification of >10 units/mg solid.
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What is the activity of the Product D4818, Dispase, which I received?
1 answer-
Each lot will have a specific activity that can be found on our website on the certificate of analysis.
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