Rabbit polyclonal APEX1 antibody (A1117)

$69.00$259.00

Reactivity: Human,Mouse,Rat
Applications: WB,IHC,IF
Conjugation: Unconjugated
Supplier: ABclonal Inc.

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Rabbit polyclonal APEX1 antibody (A1117)

Supplier: ABclonal Inc.

Recommended applications: WB,IHC,IF

Recommended dilution:

WB 1:500 – 1:2000 IHC 1:50 – 1:200 IF 1:50 – 1:200

Recommended protocols: check protocols

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Alternative names:

Check alternative names for the antibody

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APEX1 antibody,APE antibody,APE1 antibody,APEN antibody,APEX antibody,APX antibody,HAP1 antibody,REF1 antibody
AP endonuclease 1 antibody|AP endonuclease class I antibody|AP lyase antibody|APE 1 antibody|APE antibody|APE-1 antibody|APEN antibody|APEX 1 antibody|APEX antibody|APEX nuclease (multifunctional DNA repair enzyme) 1 antibody|Apex nuclease 1 antibody|APEX nuclease antibody|APEX1 antibody|APEX1_HUMAN antibody|Apurinic endonuclease antibody|Apurinic-apyrimidinic endonuclease 1 antibody|Apurinic/apyrimidinic (abasic) endonuclease antibody|Apurinic/apyrimidinic endonuclease 1 antibody|Apurinic/apyrimidinic exonuclease antibody|APX antibody|BAP1 antibody|Deoxyribonuclease (apurinic or apyrimidinic) antibody|DNA (apurinic or apyrimidinic site) lyase antibody|DNA-(apurinic or apyrimidinic site) lyase, mitochondrial antibody|EC 4.2.99.18 antibody|HAP 1 antibody|HAP1 antibody|Human Apurinic endonuclease 1 antibody|MGC139790 antibody|Multifunctional DNA repair enzyme antibody|Redox factor 1 antibody|Redox factor-1 antibody|REF 1 antibody|REF 1 protein antibody|REF-1 antibody|REF1 antibody|REF1 protein antibody|Anti-APE1 antibody [13B8E5C2] – ChIP Grade (ab194)

SCBT cat No: sc-136057|sc-334|sc-17774|sc-9919|sc-5572|sc-55498|

Name

Rabbit polyclonal APEX1 antibody

Catalogue No.

A1117

Reactivity

Human, Mouse, Rat

Immunogen

Recombinant protein of human APEX1

Host

Rabbit

Applications

WB, IHC, IF

Recommended dilution

WB 1:500 – 1:2000
IHC 1:50 – 1:200
IF 1:50 – 1:200

Clonality

Polyclonal

Conjugation

Unconjugated

Isotype

IgG

Molecular weight

Predicted: 36kDa/Observed: Refer to Figures

Formulation

APEX1 antibody was tube-contained.
Buffer: PBS with 0.02% sodium azide, 50% glycerol, pH7.3.

Purification

APEX1 antibody was purified using affinity purification.

Storage

Store at -20 Celsius degree. Avoid freeze / thaw cycles.

Alternative antibody names

APEX1 antibody,APE antibody,APE1 antibody,APEN antibody,APEX antibody,APX antibody,HAP1 antibody,REF1 antibody

Database links

Human UniProt/Swiss-Prot:P27695

Protein names

APEX1,APE,APE1,APEN,APEX,APX,HAP1,REF1

Protein function

Multifunctional protein that plays a central role in the cellular response to oxidative stress. The two major activities of APEX1 in DNA repair and redox regulation of transcriptional factors. Functions as a apurinic/apyrimidinic (AP) endodeoxyribonuclease in the DNA base excision repair (BER) pathway of DNA lesions induced by oxidative and alkylating agents. Initiates repair of AP sites in DNA by catalyzing hydrolytic incision of the phosphodiester backbone immediately adjacent to the damage, generating a single-strand break with 5′-deoxyribose phosphate and 3′-hydroxyl ends. Does also incise at AP sites in the DNA strand of DNA/RNA hybrids, single-stranded DNA regions of R-loop structures, and single-stranded RNA molecules. Has a 3′-5′ exoribonuclease activity on mismatched deoxyribonucleotides at the 3′ termini of nicked or gapped DNA molecules during short-patch BER. Possesses a DNA 3′ phosphodiesterase activity capable of removing lesions (such as phosphoglycolate) blocking the 3′ side of DNA strand breaks. May also play a role in the epigenetic regulation of gene expression by participating in DNA demethylation. Acts as a loading factor for POLB onto non-incised AP sites in DNA and stimulates the 5′-terminal deoxyribose 5′-phosphate (dRp) excision activity of POLB. Plays a role in the protection from granzymes-mediated cellular repair leading to cell death. Also involved in the DNA cleavage step of class switch recombination (CSR). On the other hand, APEX1 also exerts reversible nuclear redox activity to regulate DNA binding affinity and transcriptional activity of transcriptional factors by controlling the redox status of their DNA-binding domain, such as the FOS/JUN AP-1 complex after exposure to IR. Involved in calcium-dependent down-regulation of parathyroid hormone (PTH) expression by binding to negative calcium response elements (nCaREs). Together with HNRNPL or the dimer XRCC5/XRCC6, associates with nCaRE, acting as an activator of transcriptional repression. Stimulates the YBX1-mediated MDR1 promoter activity, when acetylated at Lys-6 and Lys-7, leading to drug resistance. Acts also as an endoribonuclease involved in the control of single-stranded RNA metabolism. Plays a role in regulating MYC mRNA turnover by preferentially cleaving in between UA and CA dinucleotides of the MYC coding region determinant (CRD). In association with NMD1, plays a role in the rRNA quality control process during cell cycle progression. Associates, together with YBX1, on the MDR1 promoter. Together with NPM1, associates with rRNA. Binds DNA and RNA.

Protein sequence and domain

The N-terminus contains the redox activity while the C-terminus exerts the DNA AP-endodeoxyribonuclease activity; both function are independent in their actions. An unconventional mitochondrial targeting sequence (MTS) is harbored within the C-terminus, that appears to be masked by the N-terminal sequence containing the nuclear localization signal (NLS), that probably blocks the interaction between the MTS and Tom proteins.Belongs to the DNA repair enzymes AP/ExoA family.

Protein post-translational modifications

Phosphorylated. Phosphorylation by kinase PKC or casein kinase CK2 results in enhanced redox activity that stimulates binding of the FOS/JUN AP-1 complex to its cognate binding site. AP-endodeoxyribonuclease activity is not affected by CK2-mediated phosphorylation. Phosphorylation of Thr-233 by CDK5 reduces AP-endodeoxyribonuclease activity resulting in accumulation of DNA damage and contributing to neuronal death.; Acetylated on Lys-6 and Lys-7. Acetylation is increased by the transcriptional coactivator EP300 acetyltransferase, genotoxic agents like H(2)O(2) and methyl methanesulfonate (MMS). Acetylation increases its binding affinity to the negative calcium response element (nCaRE) DNA promoter. The acetylated form induces a stronger binding of YBX1 to the Y-box sequence in the MDR1 promoter than the unacetylated form. Deacetylated on lysines. Lys-6 and Lys-7 are deacetylated by SIRT1.; Cleaved at Lys-31 by granzyme A to create the mitochondrial form; leading in reduction of binding to DNA, AP endodeoxynuclease activity, redox activation of transcription factors and to enhanced cell death. Cleaved by granzyme K; leading to intracellular ROS accumulation and enhanced cell death after oxidative stress.; Cys-65 and Cys-93 are nitrosylated in response to nitric oxide (NO) and lead to the exposure of the nuclear export signal (NES).; Ubiquitinated by MDM2; leading to translocation to the cytoplasm and proteasomal degradation.

Protein cellular localization

Nucleus. Nucleus, nucleolus. Nucleus speckle. Endoplasmic reticulum. Cytoplasm. Note: Detected in the cytoplasm of B-cells stimulated to switch (By similarity). Colocalized with SIRT1 in the nucleus. Colocalized with YBX1 in nuclear speckles after genotoxic stress. Together with OGG1 is recruited to nuclear speckles in UVA-irradiated cells. Colocalized with nucleolin and NPM1 in the nucleolus. Its nucleolar localization is cell cycle dependent and requires active rRNA transcription. Colocalized with calreticulin in the endoplasmic reticulum. Translocation from the nucleus to the cytoplasm is stimulated in presence of nitric oxide (NO) and function in a CRM1-dependent manner, possibly as a consequence of demasking a nuclear export signal (amino acid position 64-80). S-nitrosylation at Cys-93 and Cys-310 regulates its nuclear-cytosolic shuttling. Ubiquitinated form is localized predominantly in the cytoplasm.; DNA-(apurinic or apyrimidinic site) lyase, mitochondrial: Mitochondrion. Note: The cleaved APEX2 is only detected in mitochondria (By similarity). Translocation from the cytoplasm to the mitochondria is mediated by ROS signaling and cleavage mediated by granzyme A. Tom20-dependent translocated mitochondrial APEX1 level is significantly increased after genotoxic stress.

Background

Ape1 (Apurinic/Apyrimidic eEndonuclease 1), also known as Ref1 (Redox effector factor 1), is a multifunctional protein with several biological activities. These include roles in DNA repair and in the cellular response to oxidative stress. Ape1 initiates the repair of abasic sites and is essential for the base excision repair (BER) pathway (1). Repair activities of Ape1 are stimulated by interaction with XRCC1 (2), another essential protein in BER. Ape1 functions as a redox factor that maintains transcription factors in an active, reduced state but can also function in a redox-independent manner as a transcriptional cofactor to control different cellular fates such as apoptosis, proliferation and differentiation (3). Increased expression of Ape1 is associated with many types of cancers including cervical, ovarian, prostate, rhabdomyosarcomas and germ cell tumors (4). Ape1 has been shown to stimulate DNA binding of several transcription factors known to be involved in tumor progression such as Fos, Jun, NF-kappaB, PAX, HIF-1, HLF and p53 (4). Mutation of the Ape1 gene has also been associated with amyotrophic lateral sclerosis (ALS) (5,6).

Research area

All research areas>Transcription Regulators>Ref-1
(View all antibody categories related to Transcription Regulators)

Note

AntibodyPlus can customize APEX1 antibody according to your requirement, including bulk product size,etc. Please contact info@antibodyplus.com. AntibodyPlus provides antibody trial sample for your own antibody validation.

Product type

Primary antibody

Supplier

ABclonal Inc.

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