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Key Documents

SAB1411596

Sigma-Aldrich

Anti-HAP1 antibody produced in rabbit

purified immunoglobulin, buffered aqueous solution

Synonym(s):

HAP2, HIP5, HLP, hHLP1

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About This Item

UNSPSC Code:
12352203
NACRES:
NA.41

biological source

rabbit

Quality Level

conjugate

unconjugated

antibody form

purified immunoglobulin

antibody product type

primary antibodies

clone

polyclonal

form

buffered aqueous solution

mol wt

antigen 73.81 kDa

species reactivity

human

technique(s)

western blot: 1 μg/mL

NCBI accession no.

UniProt accession no.

shipped in

dry ice

storage temp.

−20°C

target post-translational modification

unmodified

Gene Information

human ... HAP1(9001)

General description

Huntington′s disease (HD), a neurodegenerative disorder characterized by loss of striatal neurons, is caused by an expansion of a polyglutamine tract in the HD protein huntingtin. This gene encodes a protein that interacts with huntingtin, with two cytoskeletal proteins (dynactin and pericentriolar autoantigen protein 1), and with a hepatocyte growth factor-regulated tyrosine kinase substrate. The interactions with cytoskeletal proteins and a kinase substrate suggest a role for this protein in vesicular trafficking or organelle transport. Several alternatively spliced transcript variants encoding different isoforms have been described for this gene. (provided by RefSeq)

Immunogen

HAP1 (AAI56729.1, 1 a.a. ~ 671 a.a) full-length human protein.

Sequence
MRPKRLGRCCAGSRLGPGDPAALTCAPSPSASPAPEPSAQPQARGTGQRVGSRATSGSQFLSEARTGARPASEAGAKAGARRPSAFSAIQGDVRSMPDNSDAPWTRFVFQGPFGSRATGRGTGKAAGIWKTPAAYVGRRPGVSGPERAAFIRELEEALCPNLPPPVKKITQEDVKVMLYLLEELLPPVWESVTYGMVLQRERDLNTAARIGQSLVKQNSVLMEENSKLEALLGSAKEEILYLRHQVNLRDELLQLYSDSDEEDEDEEEEEEEKEAEEEQEEEEAEEDLQCAHPCDAPKLISQEALLHQHHCPQLEALQEKLRLLEEENHQLREEASQLDTLEDEEQMLILECVEQFSEASQQMAELSEVLVLRLENYERQQQEVARLQAQVLKLQQRCRMYGAETEKLQKQLASEKEIQMQLQEESVWVGSQLQDLREKYMDCGGMLIEMQEEVKTLRQQPPVSTGSATHYPYSVPLETLPGFQETLAEELRTSLRRMISDPVYFMERNYEMPRGDTSSLRYDFRYSEDREQVRGFEAEEGLMLAADIMRGEDFTPAEEFVPQEELGAAKKVPAEEGVMEEAELVSEETEGWEEVELELDEATRMNVVTSALEASGLGPSHLDMNYVLQQLANWQDAHYRRQLRWKMLQKGECPHGALPAASRTSCRSSCR

Biochem/physiol Actions

The gene HAP1 (huntingtin-associated protein 1) is a bifunctional enzyme that functions as a DNA repair enzyme as well as in redox activation of transcription factors. It binds to the Huntington′s disease (HD) protein huntingtin in a polyglutamine length-dependent manner. It associates with huntingtin via the cytoskeletal proteins dynactin and pericentriolar autoantigen protein 1 forming coiled-coils. It plays a role in vesicle trafficking by facilitating interactions among cytoskeletal, vesicular and motor proteins. It is an apurinic/apyrimidinic (AP) site-specific DNA repair endonuclease that removes the AP sites produced naturally or by cytotoxic drugs and radiation. It also has RNAse H activity and controls the redox state of certain proto-oncogene products, such as the transcription factor c-Jun. The HAP1 protein is a candidate for pathology associated with HD.

Physical form

Solution in phosphate buffered saline, pH 7.4

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Storage Class Code

10 - Combustible liquids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

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A role for the human DNA repair enzyme HAP1 in cellular protection against DNA damaging agents and hypoxic stress.
Walker LJ
Nucleic Acids Research, 22, 4884-4889 (1994)
Huntingtin-associated protein 1 (HAP1) interacts with the p150Glued subunit of dynactin.
Engelender S
Human Molecular Genetics, 6, 2205-2212 (1997)
L J Walker et al.
Molecular and cellular biology, 13(9), 5370-5376 (1993-09-01)
The DNA binding activity of the c-jun proto-oncogene product is inhibited by oxidation of a specific cysteine residue (Cys-252) in the DNA binding domain. Jun protein inactivated by oxidation of this residue can be efficiently reactivated by a factor from

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