PRODUCT NAME

Girdin Polyclonal Antibody, FITC Conjugated

CONJUGATION

FITC

HOST

Rabbit

SOURCE

KLH conjugated synthetic peptide derived from human APE/Girdin

IMMUNOGEN RANGE

1401-1500/1870

CLONALITY

Polyclonal

ISOTYPE

IgG

CONCENTRATION

1ug/ul

PURIFICATION

Purified by Protein A.

STORAGE BUFFER

Aqueous buffered solution containing 1% BSA, 50% glycerol and 0.09% sodium azide.

STORAGE CONDITION

Store at 4°C for 12 months.

GENE ID

328

SUBCELLULAR LOCATION

Cytoplasm, Cell membrane

SYNONYMS

APE; APX; APE1; APEN; APEX; HAP1; REF1; DNA-(apurinic or apyrimidinic site) lyase; APEX nuclease; Apurinic-apyrimidinic endonuclease 1; AP endonuclease 1; APE-1; REF-1; Redox factor-1; APEX1

BACKGROUND

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).

APPLICATION DILUTION

IF(IHC-P)(1:50-200), IF(IHC-F)(1:50-200), IF(ICC)(1:50-200)