Search form

Factor I

 For Research Use Only. Not for use in diagnostic procedures.

Purified human complement component Factor I. Factor I is a fluid phase complement regulatory enzyme. It consists of two peptide chains with molecular weights of 50 kD and 38 kD, respectively. Factor I is present in plasma at 35 mg/L. With Factor H, CR1 or C4 Binding Protein acting as a co factor, Factor I cleaves the C3b subunit of the alternative and classical pathway convertases, thereby inactivating them.

All Quidel complement components are tested for functional activity in a standard lytic or applicable functional assay and for biochemical purity by SDS-polyacrylamide gel electrophoresis. Please refer to the Certificate of Analysis for lot specific information on functional titer.

Quidel's purified human complement components are useful in a wide variety of immunochemical and research applications. For assistance with a specific protocol, please contact Quidel Technical Support.

Features & Benefits

FeatureBenefit

Product Specifications

Product Spec NameProduct Spec Data
Concentration

1.0 mg/mL

Volume/vial

250 µL/vial

Storage

At or below –70°C

Purity

> 90%

Percent positive agreement*

100%

Buffer

PBS

Ordering Information

Catalog NumberKit Size / Case Size
A411
250 µL/vial

Product Documentation

PDF icon  SDS