lacZ Rabbit Polyclonal Antibody

Specifications

Product Data
Applications	ELISA, IF, IHC, IP, WB
Recommend Dilution	Suitable for Immunoblotting (Western or dot blot), ELISA, Immunofluorescence microscopy, Immunoprecipitation, conjugation and most immunological methods requiring high titer and specificity. Western blot: 1/5,000-1/10,000. A 1/5,000 dilution has been reported to be successful for staining by Immunoblot of Beta-galactosidase fusion proteins after transfer using a semi-dry transfer apparatus). ELISA: 1/10,000. Immunohistochemistry: 1/1,500. The antibody recognizes both Frozen tissue sections, Paraffin embedded tissue and 4% paraformaldehyde fixed tissue for most immunohistochemical analysis:A 1/1,500 dilution has been reported to detect Beta-galactosidase in adult rat spinal cord tissue after infection with helper-dependent adenovirus expressing lacZ. In this particular experiment, tissue was perfused with 4% paraformaldehyde and cryostat-cut (35 µm) to produce free-floating sections. A 1/5,000 dilution has been reported for immunofluorescent staining of methanol fixed, devitellinized Drosophila embryos. Although a wide range of conditions was reported to be effective, a 1/10,000 dilution was noted to show no background and to be suitable for double labeling experiments). A 1/5,000 dilution has been reported to be successful for staining brain sections from transgenic mice expressing nuclear Beta-galactosidase when assayed by Immunofluorescence microscopy.
Reactivity	Escherichia coli
Host	Rabbit
Clonality	Polyclonal
Immunogen	Full length native Beta-galactosidase isolated from E.coli
Specificity	This antibody detects Beta-galactosidase [E. coli]. Cross reactivity against Beta-galactosidase from other tissues and species may occur but have not been specifically determined. Very low background staining has been reported in various assays. Immunoelectrophoresis gives a single precipitin arc against anti-rabbit serum as well as purified and partially purified Beta-galactosidase [E.coli].
Formulation	0.02M Potassium phosphate, 0.15M Sodium chloride, pH 7.2 State: Purified State: Lyophilized purified IgG fraction Stabilizer: None Preservative: 0.01% (w/v) Sodium azide
Reconstitution Method	Restore with 0.1 ml of deionized water (or equivalent).
Concentration	lot specific
Purification	Multi-step process which includes delipidation, salt fractionation and ion exchange chromatography followed by extensive dialysis against the buffer
Conjugation	Unconjugated
Storage Condition	Store lyophilized at 2-8°C for 6 months or at -20°C long term. After reconstitution store the antibody undiluted at 2-8°C for one month or (in aliquots) at -20°C long term. Dilute only prior to immediate use. Avoid repeated freezing and thawing.
Database Link	UniProt ID P00722
Background	Beta-galactosidase is coded by a gene (lac z) in the lac operon of Escherichia coli. It is a metalloenzyme that splits lactose into glucose and galactose. It hydrolyzes terminal, non-reducing beta-D-galactose residues in beta-D-galactosides. Activation by cations seems to be substrate dependent. K+, Na+, NH4+, Rb+, Cs+ and Mn++ all activate enzyme activity based upon the substrate used. Anti Beta-galactosidase antibody recognizes the enzyme beta-galactosidase, or ß-galactosidase, that is a component of assays used frequently in genetics, molecular biology (see X-gal) for a blue white screen, and other life sciences. IPTG induces production of ß-galactosidase by binding and inhibiting the lac repressor. Since it is highly expressed and accumulated in lysosomes in senescent cells, it is used as a senescence biomarker both in vivo and in vitro in qualitative and quantitative assays, despite its limitations. Anti Beta-galactosidase antibody is ideal for investigators involved in enzyme research.
Synonyms	Beta-Gal tag, lacZ tag, b0344, JW0335, Beta-Gal Fusion Protein, Lactase
Note	Conjugates available. Please ask for details.
Reference Data

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