Accéder au contenu
Merck
Toutes les photos(1)

Documents

SRP6437

Sigma-Aldrich

CD55/DAF human

recombinant, expressed in HEK 293 cells, ≥95% (SDS-PAGE)

Synonyme(s) :

CR, CROM, TC

Se connecterpour consulter vos tarifs contractuels et ceux de votre entreprise/organisme
Toutes les photos(1)

About This Item

Code UNSPSC :
12352200
Nomenclature NACRES :
NA.32

Source biologique

human

Produit recombinant

expressed in HEK 293 cells

Étiquette/Marqueur

6-His tagged (C-terminus)

Pureté

≥95% (SDS-PAGE)

Forme

lyophilized

Poids mol.

calculated mol wt 35.8 kDa
observed mol wt 50-65 kDa (DTT-reduced. Protein migrates due to glycosylation. Asp 35 is the predicted N-terminal.)

Conditionnement

pkg of 10 μg
pkg of 50 μg

Numéro d'accès UniProt

P08174

Conditions d'expédition

wet ice

Température de stockage

−20°C

Informations sur le gène

human ... CD55(1604)

Description générale

CD55 (complement decay-accelerating factor), also known as DAF or decay accelerating factor, is a member of the RCA (regulators of complement activation) family characterized by four to 30 SCRs (short consensus repeats) in their plasma-exposed regions. CD55 /DAF is a 70 kDa membrane protein that regulates the complement system on the cell surface. This glycoprotein is broadly distributed among hematopoietic and non-hematopoietic cells.

Actions biochimiques/physiologiques

CD55 (complement decay-accelerating factor) prevents the assembly of the C3bBb complex (the C3-convertase of the alternative pathway) or accelerates the disassembly of preformed convertase, thus blocking the formation of the membrane attack complex. It is a determinant for the Cromer blood group system. CD55 is known to bind CD97 via the first short consensus repeats (SCR). It also binds physiologically generated C3 convertases with its second and third SCRs. Binding results in an accelerated “decay”, or dissociation of active C3 convertases, thus blocking the development of C′ attack complexes on non-foreign cells. Finally, viruses and bacteria are also known to utilize multiple SCR sites for infection.

Forme physique

Lyophilized from 0.22 μm filtered solution in PBS, pH7.4. Normally Mannitol or Trehalose is added as protectants before lyophilization.

Reconstitution

Centrifuge the vial prior to opening. Reconstitute in sterile PBS, pH 7.4 to a concentration of 50 μg/mL. Do not vortex. This solution can be stored at 2-8°C for up to 1 month. For extended storage, it is recommended to store at -20°C.

Code de la classe de stockage

11 - Combustible Solids

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Certificats d'analyse (COA)

Recherchez un Certificats d'analyse (COA) en saisissant le numéro de lot du produit. Les numéros de lot figurent sur l'étiquette du produit après les mots "Lot" ou "Batch".

Déjà en possession de ce produit ?

Retrouvez la documentation relative aux produits que vous avez récemment achetés dans la Bibliothèque de documents.

Consulter la Bibliothèque de documents

Molecular basis of reduced or absent expression of decay-accelerating factor in Cromer blood group phenotypes.
Lublin D M, et al.
Blood, 84(4), 1276-1282 (1994)
Structure of complement fragment C3b?factor H and implications for host protection by complement regulators.
Wu J, et al.
Nature Immunology, 10(7), 728-728 (2009)
Membrane complement regulatory proteins.
Kim D D and Song W C
Clinical Immunology (Orlando, Fla.), 118(2-3), 127-136 (2006)
Hantavirus causing hemorrhagic fever with renal syndrome enters from the apical surface and requires decay-accelerating factor (DAF/CD55).
Krautkramer E and Zeier M
Journal of Virology, 82(9), 4257-4264 (2008)
An understanding of intervertebral disc development, maturation and cell phenotype provides clues to direct cell-based tissue regeneration therapies for disc degeneration.
Rodrigues-Pinto R, et al.
European Spine Journal : Official Publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society, 23(9), 1803-1814 (2014)
Afficher tous les articles scientifiques apparentés

Notre équipe de scientifiques dispose d'une expérience dans tous les secteurs de la recherche, notamment en sciences de la vie, science des matériaux, synthèse chimique, chromatographie, analyse et dans de nombreux autres domaines..

Contacter notre Service technique