P7605

Anti-PARP antibody produced in rabbit

affinity isolated antibody, buffered aqueous solution

• Synonym(s): Anti-Poly[ADP-ribose] Polymerase
• MDL number: MFCD01322527
• UNSPSC Code: 12352203
• NACRES: NA.41

Properties

• biological source: rabbit
• conjugate: unconjugated
• antibody form: affinity isolated antibody
• antibody product type: primary antibodies
• clone: polyclonal
• form: buffered aqueous solution
• mol wt: antigen 116 kDa
• species reactivity: human
• technique(s): indirect immunofluorescence: 1:100 using cultured MCF7 cells; microarray: suitable; western blot: 1:200 using MCF7 human mammary adenocarcinoma cell extract
• UniProt accession no.: P09874
• shipped in: dry ice
• storage temp.: −20°C
• target post-translational modification: unmodified
• Gene Information: human ... PARP1(142)

Description

General description

Poly (ADP-ribose) Polymerase (PARP, EC 2.4.2.30) is an abundant, zinc-dependent eukaryotic nuclear enzyme. PARP is composed of an N-terminal DNA binding domain, a central regulatory automodification domain that accepts poly (ADP-ribose) and a C-terminal catalytic domain. PARP contains a conserved proteinase recognition site (DEVD) a target for several caspases (e.g. Caspase 2, 3, 6, 7 and 9).

Specificity

By immunoblotting, the antibody may also react with a cleavage product of 85 kDa in some preparations.

Immunogen

synthetic peptide corresponding to amino acids 2-20 of human or bovine PARP with a C-terminal added lysine, conjugated to KLH.

Application

Anti-PARP antibody produced in rabbit has been used in western blotting.

Biochem/physiol Actions

Poly (ADP-ribose) Polymerase (PARP) specifically recognizes single or double strand DNA breaks produced by various genotoxic agents. Thus, it is a molecular nick sensor, that following binding to damaged DNA converts nicotinamide adenine dinucleotide (NAD) to nicotinamide and branched polymers of various poly (ADP-ribose)(PAR) on glutamate residues of a limited number of nuclear acceptor proteins, including PARP itself. The increased negative charge of modified PARP results in loss of interaction with DNA due to electrostatic repulsion. The poly (ADP-ribose) moiety is quickly degraded by a PARP-associated Poly (ADP-ribose) glycohydrolase. Also, PARP modification of nuclear proteins is involved in chromatin structure formation, the regulation of differentiation, proliferation, development, apoptosis, gene expression, response to heart and brain ischemia/reperfusion, and malignant transformation. Rapid activation of PARP may deplete NAD, slow glycolysis, electron transport and ATP formation and cause cell dysfunction and cell death. Cleavage of PARP into fragments of 24 kD and 89 kDa by caspase-3 is an early marker of apoptosis. Necrotic cleavage of PARP generates different fragments.

Physical form

Solution in 0.01 M phosphate buffered saline, pH 7.4, containing 1% BSA and 15 mM sodium azide

Disclaimer

Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

Safety Information

• Storage Class Code: 10 - Combustible liquids
• WGK: nwg
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves