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H4272

Sigma-Aldrich

Hyaluronidase from bovine testes

Type IV-S, powder, suitable for mouse embryo cell culture, 750-3000 units/mg solid

Synonym(s):

Hyaluronate 4-glycanohydrolase, Hyaluronoglucosaminidase

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About This Item

CAS Number:
37326-33-3
Enzyme Commission number:
3.2.1.35 (BRENDA, IUBMB)
EC Number:
253-464-3
MDL number:
MFCD00131351
UNSPSC Code:
12352204
NACRES:
NA.75

sterility

aseptically processed

Quality Level

200

type

Type IV-S

form

powder

specific activity

750-3000 units/mg solid

mol wt

~55 kDa (four subunits of 14 kDa each)

composition

Protein, 80-105% biuret

technique(s)

cell culture | embryo: suitable

storage temp.

−20°C

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Application

Hyaluronidase is an enzyme derived from bovine testes. It is used to remove the cumulus mass in the isolation of mouse embryos or from newly ovulated eggs, when preparing the eggs for in vitro culture.

Gonadotropins are used to superovulate 20 female mice. The mice are then mated and preimplantation stage embryos are retrieved and counted. The embryos are treated with hyaluronidase until the cumulus mass is dissociated from the embryos. The embryos are cultured, viewed daily and progress of the embryos is recorded.

Biochem/physiol Actions

Hyaluronidase degrades hyaluronan and has been found to be inappropriately regulated during cancer progression.
These enzymes randomly cleave β-N-acetylhexosamine-[1→4] glycosidic bonds in hyaluronic acid, chondroitin, and chondroitin sulfates.

Unit Definition

One unit will degrade 0.75 μg of the polysaccharide hyaluronic acid per minute at pH 5.35 at 37 ºC (as measured by turbidimetric absorbance (λ: 600nm) when complexed with BSA after 45 minutes).

Preparation Note

Reconstitute 1 vial of hyaluronidase with 3 ml of M2 Medium (Product Nos. M 7167 or M 5910) or deionized water to obtain a 10 mg/ml stock solution. Dilute stock solution with M2 Medium to obtain a final working concentration of approximately 300 μg/ml.

Pictograms

Health hazard
GHS08

Signal Word

Danger

Hazard Statements

H334

Precautionary Statements

P261 - P284 - P501

Hazard Classifications

Resp. Sens. 1

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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Liesl Jacobs et al.
Molecular therapy : the journal of the American Society of Gene Therapy, 28(4), 1068-1077 (2020-02-27)
Checkpoint-inhibiting antibodies elicit impressive clinical responses, but still face several issues. The current study evaluated whether DNA-based delivery can broaden the application of checkpoint inhibitors, specifically by pursuing cost-efficient in vivo production, facilitating combination therapies, and exploring administration routes that lower
Ji Liao et al.
Scientific reports, 10(1), 20636-20636 (2020-11-28)
A battery of chromatin modifying enzymes play essential roles in remodeling the epigenome in the zygote and cleavage stage embryos, when the maternal genome is the sole contributor. Here we identify an exemption. DOT1L methylates lysine 79 in the globular
Giles Vermeire et al.
Cancer gene therapy, 28(7-8), 828-838 (2020-08-01)
Nanobodies present an appealing class of potential cancer therapeutics. The current study explores the in vivo expression of these molecules through DNA-encoded delivery. We hypothesized that this approach could address the rapid clearance of Nanobodies and, through half-life modulation, increase
Marco Ragusa et al.
RNA biology, 16(9), 1237-1248 (2019-05-29)
Circular RNAs (circRNAs) have a critical role in the control of gene expression. Their function in spermatozoa (SPZ) is unknown to date. Twenty-eight genes, involved in SPZ/testicular and epididymal physiology, were given in circBase database to find which of them
P Lorenzo Bozzelli et al.
Experimental neurology, 323, 113077-113077 (2019-11-05)
HIV-associated neurocognitive disorders (HAND) continue to persist despite effective control of viral replication. Although the mechanisms underlying HAND are poorly understood, recent attention has focused on altered neuronal population activity as a correlate of impaired cognition. However, while alterations in
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Articles

Embryo Culture Media

Mouse embryo media and embryo validated reagents for transgenic mouse embryo culture

Protocols

Enzymatic Assay of Hyaluronidase (3.2.1.35)

To measure hyaluronidase activity, a turbidimetric determination assay is used at 600 nm. One unit of hyaluronidase activity will cause a change in absorbance of 0.330 per minute at pH 5.35 at 37 °C.

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