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233552-M

Cobra Venom Factor, Naja naja kaouthia

Cobra Venom Factor, Naja naja kaouthia, is a native cobra venom factor. Glycoprotein composed of three non-identical disulfide-bonded subunits of 68, 48, and 30 kDa.

Synonym(s):

Cobra Venom Anticomplementary Protein

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1 mg

Estimated to ship onJune 03, 2026fromAreál Kühne+Nagel spol. s r.o.

CZK 11,400.00

About This Item

UNSPSC Code:
12352202
NACRES:
NA.42
Form:
liquid
Assay:
≥95% (SDS-PAGE)

CZK 11,400.00

Estimated to ship onJune 03, 2026Details

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Quality Segment

100

assay

≥95% (SDS-PAGE)

form

liquid

specific activity

≥250 units/mL

manufacturer/tradename

Calbiochem®

storage condition

OK to freeze, avoid repeated freeze/thaw cycles

foreign activity

Phospholipase, none detected

storage temp.

−70°C

General description

Native cobra venom factor from Naja naja kaouthia. Glycoprotein composed of three non-identical disulfide-bonded subunits with M.W. of 68 kDa (α), 48 kDa (β), and 30 kDa (γ). Cobra venom factor (CVF) is a structural and functional analog of cobra, as well as mammalian C3. Thus, in the presence of Factor B, Factor D, and Mg2+, CVF can form a stable CVF,Bb complex that is a C3/C5 convertase enzyme; however, the CVF,Bb complex is not susceptible to regulation by Factors H and I. Four to six µg of purified CVF are equal to 1.0 unit of functional activity as measured by the method of Cochrane, et al.

Other Notes

Bogers, W.M., et al. 1993. Eur. J. Immunol.23, 433.
Fritzinger, D.C., et al. 1992. J. Immunol. 149, 3554.
Muller, B. and Muller-Ruchholtz, W. 1987. Leuk. Res.11, 461.
Vogel, C.W. and Muller-Eberhard, H.J. 1984. J. Immunol. Methods73, 203.
Cochrane, C.G., et al. 1970. J. Immunol. 105, 55.
Ballows, M. and Cochrane, C.G. 1969. J. Immunol.103, 944.

Legal Information

Not available for sale outside the United States.
CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany

Disclaimer

Toxicity: Harmful (C)

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This Item
341280341283341274-M
Cobra Venom Factor, Naja naja kaouthia Cobra Venom Factor, Naja naja kaouthia, is a native cobra venom factor. Glycoprotein composed of three non-identical disulfide-bonded subunits of 68, 48, and 30 kDa.

Sigma-Aldrich

233552-M

Cobra Venom Factor, Naja naja kaouthia

Factor I, Human Factor I, Human, is a glycoprotein composed of two non-identical disulfide-bonded subunits of 50 and 38 kDa. A serine protease that requires protein cofactor in order to effect substrate cleavage.

Sigma-Aldrich

341280

Factor I, Human

Factor P, Human Factor P, Human, is a native glycoprotein found in di-, tri-, and tetrameric form (92, 138 & 184 kDa). Accelerates complement activation by binding to and stabilizing the C3 and C5 convertases.

Sigma-Aldrich

341283

Factor P, Human

Factor H, Human Factor H, Human, is a single-chain multi-functional glycoprotein that regulates formation and function of complement C3 and C5 convertase enzymes.

Sigma-Aldrich

341274-M

Factor H, Human

assay

≥95% (SDS-PAGE)

assay

≥95% (SDS-PAGE)

assay

≥90% (SDS-PAGE)

assay

≥95% (SDS-PAGE)

form

liquid

form

liquid

form

liquid

form

liquid

storage condition

OK to freeze, avoid repeated freeze/thaw cycles

storage condition

OK to freeze, avoid repeated freeze/thaw cycles

storage condition

OK to freeze, avoid repeated freeze/thaw cycles

storage condition

OK to freeze, avoid repeated freeze/thaw cycles

specific activity

≥250 units/mL

specific activity

-

specific activity

-

specific activity

-

storage temp.

−70°C

storage temp.

−70°C

storage temp.

−70°C

storage temp.

−70°C

Quality Level

100

Quality Level

100

Quality Level

100

Quality Level

100

Storage Class

12 - Non Combustible Liquids

wgk

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

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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