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SRP3136

Sigma-Aldrich

PAF-AH human

recombinant, expressed in HEK 293 cells, ≥95% (SDS-PAGE), ≥95% (HPLC), suitable for cell culture

Synonym(s):

1-alkyl-2-acetylglycerophosphocholine esterase, 2-acetyl-1-alkylglycerophosphocholine esterase, LDL-associated phospholipase A2, PAF 2-acylhydrolase, PAF acetylhydrolase

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About This Item

UNSPSC Code:
12352202
NACRES:
NA.32

biological source

human

recombinant

expressed in HEK 293 cells

Assay

≥95% (HPLC)
≥95% (SDS-PAGE)

form

lyophilized

potency

≤0.1 ng/mL ED50

mol wt

47-55 kDa

packaging

pkg of 20 μg

technique(s)

cell culture | mammalian: suitable

impurities

<0.1 EU/μg endotoxin, tested

color

white

UniProt accession no.

shipped in

wet ice

storage temp.

−20°C

Gene Information

human ... PLA2G7(7941)

General description

Recombinant PAF-AH is a 420 amino acid glycoprotein which migrates with an apparent molecular mass of 47-55kDa by SDS-PAGE analysis.

Biochem/physiol Actions

Platelet Activating Factor (PAF) is a biologically active phospholipid, which exerts primarily proinflammatory activities by specifically signaling through G-protein-coupled receptors on platelets, neutrophils, and monocytes. Platelet activating factor acetylhydrolase (PAF-AH) is a secreted protein that mediates PAF activity by specifically catalyzing hydrolysis of the "sn2" ester bond, resulting in the conversion of PAF to the biologically inactive lyso-PAF. PAF-AH can also interact with LDL (low density lipoprotein) particles to induce the hydrolysis of LDL associated, oxidized phospholipids, generating lysophosphatidylcholine (lyso-PC) and other lysophospholipids. High levels of PAF-AH in plasma can be an indication of resistant hypertension. Polymorphism in PAF-AH gene at A379V might be linked with ischemic stroke susceptibility.

Sequence

FDWQYINPVA HMKSSAWVNK IQVLMAAASF GQTKIPRGNG PYSVGCTDLM FDHTNKGTFL RLYYPSQDND RLDTLWIPNK EYFWGLSKFL GTHWLMGNIL RLLFGSMTTP ANWNSPLRPG EKYPLVVFSH GLGAFRTLYS AIGIDLASHG FIVAAVEHRD RSASATYYFK DQSAAEIGDK SWLYLRTLKQ EEETHIRNEQ VRQRAKECSQ ALSLILDIDH GKPVKNALDL KFDMEQLKDS IDREKIAVIG HSFGGATVIQ TLSEDQRFRC GIALDAWMFP LGDEVYSRIP QPLFFINSEY FQYPANIIKM KKCYSPDKER KMITIRGSVH QNFADFTFAT GKIIGHMLKL KGDIDSNVAI DLSNKASLAF LQKHLGLHKD FDQWDCLIEG DDENLIPGTN INTTNQHIML QNSSGIEKYN

Physical form

Lyophilized from 10 mM Tris, pH 8.5.

Reconstitution

Centrifuge the vial prior to opening. Reconstitute in water to a concentration of 0.1-1.0 mg/ml. Do not vortex. This solution can be stored at 2-8°C for up to 1 week. For extended storage, it is recommended to further dilute in a buffer containing a carrier protein (example 0.1% BSA) and store in working aliquots at -20°C to -80°C.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

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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Association of PLA2G7 gene polymorphisms with ischemic stroke in northern Chinese Han population.
Liu X, et al.
Clinical Biochemistry, 47, 404-408 (2014)
Biology of platelet-activating factor acetylhydrolase (PAF-AH, lipoprotein associated phospholipase A2).
Stafforini DM
Cardiovascular Drugs and Therapy, 23, 73-83 (2009)
Correlations between plasma platelet-activating factor acetylhydrolase (PAF-AH) activity and PAF-AH genotype, age, and atherosclerosis in a Japanese population.
Yamada Y, et al.
Atherosclerosis, 150, 209-216 (2000)
Hiroyuki Arai
Prostaglandins & other lipid mediators, 68-69, 83-94 (2002-11-16)
Platelet-activating factor (PAF) is one of the most potent lipid mediators and is involved in a variety of physiological events. The acetyl group at the sn-2 position of its glycerol backbone is required for its biological activity, and deacetylation of
Platelet-activating factor induces NF-kappa B activation through a G protein-coupled pathway.
Kravchenko VV, et al.
The Journal of Biological Chemistry, 270, 14928-14934 (1995)

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