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CHO/dhFr- [CHO duk-, NOTE: dhfr refers to dihydrofolate reductase]

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價格:

編號:B164250

品牌:Mingzhoubio

標準菌株

定量菌液

DNA

RNA

規格:

凍干粉

斜面

甘油

平板

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產品名稱

CHO/dhFr- [CHO duk-, NOTE: dhfr refers to dihydrofolate reductase]

商品貨號

B164250

Organism

Cricetulus griseus, hamster, Chinese

Tissue

ovary

培養基

Product Format

frozen

Morphology

epithelial

Culture Properties

adherent

Biosafety Level

Biosafety classification is based on U.S. Public Health Service Guidelines, it is the responsibility of the customer to ensure that their facilities comply with biosafety regulations for their own country.

Disease

normal

Gender

female

Applications

This cell line is a suitable transfection host.

Storage Conditions

liquid nitrogen vapor phase

Disclosure

This material is cited in a US or other Patent and may not be used to infringe the claims. Depending on the wishes of the Depositor, ATCC may be required to inform the Patent Depositor of the party to which the material was furnished. This material may not have been produced or characterized by ATCC.

Images

Clinical Data

female

Complete Growth Medium

Iscove's modified Dulbecco's medium with 4 mM L-glutamine adjusted to contain 1.5 g/L sodium bicarbonate and supplemented with 0.1 mM hypoxanthine, 0.016 mM thymidine, 0.002mM Methotrexate (Amethopterin) and 10% fetal bovine serum

Subculturing

Volumes are given for a 75 cm² flask. Increase or decrease the amount of dissociation medium needed proportionally for culture vessels of other sizes.

Remove and discard culture medium.
Briefly rinse the cell layer with 0.25% (w/v) Trypsin- 0.53 mM EDTA solution to remove all traces of serum that contains trypsin inhibitor.
Add 2.0 to 3.0 mL of Trypsin-EDTA solution to flask and observe cells under an inverted microscope until cell layer is dispersed (usually within 5 to 15 minutes).
Note: To avoid clumping do not agitate the cells by hitting or shaking the flask while waiting for the cells to detach. Cells that are difficult to detach may be placed at 37°C to facilitate dispersal.
Add 6.0 to 8.0 mL of complete growth medium and aspirate cells by gently pipetting.
Add appropriate aliquots of the cell suspension to new culture vessels.
Incubate cultures at 37°C.

Subcultivation Ratio: A subcultivation ratio of 1:4 to 1:8 is recommended

Medium Renewal: 2 to 3 times per week

Note: The cells are deficient in dihydrofolate reductase. They should die in the absence of HT (Hypoxanthine-Thymidine). Methotrexate (Amethopterin) is added to the cell culture medium to prevent growth of revertant cells with a low resistance to the drug.

Cryopreservation

Freeze medium: Complete growth medium 95%; DMSO, 5%

Storage temperature: liquid nitrogen vapor phase

Culture Conditions

Atmosphere: air, 95%; carbon dioxide (CO₂), 5%

Temperature: 37°C

Name of Depositor

Hoffmann-La Roche Ltd.

Deposited As

Cricetulus griseus

U.S. Patent Number

4,992,367

References

Shulman T, et al. An antibody reactive with domain 4 of the platelet-derived growth factor beta receptor allows BB binding while inhibiting proliferation by impairing receptor dimerization. J. Biol. Chem. 272: 17400-17404, 1997. PubMed: 9211881

Morel-Kopp MC, et al. A three amino acid deletion in glycoprotein IIIa is responsible for type I glanzmann's thrombasthenia: importance of residues I1e325Pro326Gly327 for beta 3 integrin subunit association. Blood 90: 669-677, 1997. PubMed: 9226167

Libyh MT, et al. A recombinant human scFv anti-Rh(D) antibody with multiple valences using a C-terminal fragment of C4-binding protein. Blood 90: 3978-3983, 1997. PubMed: 9354666

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