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Mouse monoclonal antibody

Anti-Complement component C1s, (human, pro- and activated enzyme)

CAT NO: ABS 002-09 | Application: ELISA, IHC


Cat. No.

ABS 002-09

Specificity

ABS 002-09 is specific for C1s proenzyme and activated free C1s.

Immunogen

C1s proenzyme purified from human plasma

Host

Mouse

Positive Species Reactivity

Human

Negative Species Reactivity

Not determined

Isotype

IgG1/k

Gene ID

716

Clone Number

9

Epitope Specificity

Epitope differs from that of ABS 002-49.

Unit Size

400 µL: Cat. No. ABS 002-09-04 1 mL: Cat. No. ABS 002-09-1 1 mg/mL +/- 15%. See Certificate of Analysis for details.

Purification

Protein-A/G purified, from culture supernatant

Form

Liquid

Solvent

0.01 M phosphate buffer, pH 7.4, containing 0.5 M NaCl and 15 mM sodium azide

Conjugation

Unconjugated BSA free

Storage

4-8ºC without exposure to light. No precautions necessary during handling.

Target

C1s proenzyme is a 79.8 kDa glycoprotein produced primarily by hepatocytes but also by other cells. The proenzyme is produced as a single-chain polypeptide of 688 aa. Upon activation the peptide is cleaved between R437 and I438 giving the activated enzyme consisting of two disulfide-linked chains, A chain (52.2 kDa) and B chain (27.7 kDa). The Ca-dependent catalytic subunit of the C1 complex (C1q, C1r, C1s) comprises of two C1s and two C1r molecules and this serine protease tetramer is responsible for the initial steps in the classical complement pathway, cleavage of C4 and C2.