Register or Login
  • All
  • Uniprot Id
  • Catalog #
  • Peptide Sequence
>   home   >   Products   >   Peptides   >   Blocking Peptides   >   C4B Antibody (Center) Blocking peptide   

C4B Antibody (Center) Blocking peptide

Synthetic peptide

Product Information
Primary Accession P0C0L4
Clone Names 100427062
Peptide ID 100427062
Additional Information
Gene ID 720;721
Other Names Complement C4-A, Acidic complement C4, C3 and PZP-like alpha-2-macroglobulin domain-containing protein 2, Complement C4 beta chain, Complement C4-A alpha chain, C4a anaphylatoxin, C4b-A, C4d-A, Complement C4 gamma chain, C4A, CO4, CPAMD2
Target/Specificity The synthetic peptide sequence used to generate the antibody AP13985c was selected from the Center region of C4B. A 10 to 100 fold molar excess to antibody is recommended. Precise conditions should be optimized for a particular assay.
Format Synthetic peptide was lyophilized with 100% acetonitrile and is supplied as a powder. Reconstitute with 0.1 ml DI water for a final concentration of 1 mg/ml.
StorageMaintain refrigerated at 2-8°C for up to 6 months. For long term storage store at -20°C.
PrecautionsThis product is for research use only. Not for use in diagnostic or therapeutic procedures.
Protein Information
Name C4A
Synonyms CO4, CPAMD2
Function Non-enzymatic component of C3 and C5 convertases and thus essential for the propagation of the classical complement pathway. Covalently binds to immunoglobulins and immune complexes and enhances the solubilization of immune aggregates and the clearance of IC through CR1 on erythrocytes. C4A isotype is responsible for effective binding to form amide bonds with immune aggregates or protein antigens, while C4B isotype catalyzes the transacylation of the thioester carbonyl group to form ester bonds with carbohydrate antigens.
Cellular Location Secreted.
Tissue Location Complement component C4 is expressed at highest levels in the liver, at moderate levels in the adrenal cortex, adrenal medulla, thyroid gland,and the kidney, and at lowest levels in the heart, ovary, small intestine, thymus, pancreas and spleen. The extra-hepatic sites of expression may be important for the local protection and inflammatory response
Research Areas
Citations (0)

Thousands of laboratories across the world have published research that depended on the performance of antibodies from Abgent to advance their research. Check out links to articles that cite our products in major peer-reviewed journals, organized by research category.

Submit your citation using an Abgent antibody to, and receive a free "I Love Antibodies" mug.


This gene encodes the basic form of complement factor 4,part of the classical activation pathway. The protein is expressedas a single chain precursor which is proteolytically cleaved into atrimer of alpha, beta, and gamma chains prior to secretion. Thetrimer provides a surface for interaction between theantigen-antibody complex and other complement components. The alphachain may be cleaved to release C4 anaphylatoxin, a mediator oflocal inflammation. Deficiency of this protein is associated withsystemic lupus erythematosus. This gene localizes to the majorhistocompatibility complex (MHC) class III region on chromosome 6.Varying haplotypes of this gene cluster exist, such thatindividuals may have 1, 2, or 3 copies of this gene. In addition,this gene exists as a long form and a short form due to thepresence or absence of a 6.4 kb endogenous HERV-K retrovirus inintron 9.


Bailey, S.D., et al. Diabetes Care 33(10):2250-2253(2010)Fernando, M.M., et al. Hum. Mutat. 31(7):866-874(2010)Mostafa, G.A., et al. J. Neuroimmunol. 223 (1-2), 115-119 (2010) :Hamad, O.A., et al. J. Immunol. 184(5):2686-2692(2010)Mougey, R. Immunohematology 26(1):30-38(2010)

Abgent welcomes feedback from its customers.

If you have used an Abgent product and would like to share how it has performed, please click on the "Submit Review" button and provide the requested information. Our staff will examine and post your review and contact you if needed.

If you have any additional inquiries please email technical services at

$ 80.00
Cat# BP13985c
(40 western blots)
Availability: In Stock
Bulk Size
Seasonal Special on Bulk Order
Request Quote Here

Ordering Information

United States
AlbaniaAustraliaAustriaBelgiumBosnia & HerzegovinaBrazilBulgariaCanadaChinaCroatiaCyprusCzech RepublicDenmarkEstoniaFinlandFranceGermanyGreeceHong KongHungaryIcelandIndiaIndonesiaIrelandIsraelItalyJapanKoreaLatviaLithuaniaLuxembourgMacedoniaMalaysiaMaltaNetherlandsNew ZealandNorwayPakistanPolandPortugalRomaniaSerbiaSingaporeSlovakiaSloveniaSouth AfricaSpainSwedenSwitzerlandTaiwanTurkeyUnited KingdomUnited StatesVietnamOthers
Abgent, Inc.
(888) 735-7227 / (858) 622-0099
(858) 622-0609

Shipping Information

Domestic orders (in stock items)
Shipped out the same day. Orders placed after 1 PM (PST) will ship out the next business day.
International orders
Contact your local distributors
Santa Cruz Alternative
Terms & Conditions