Beta-galactosidase tag

Principal name

Beta-galactosidase tag antibody

Gene ID

945006 (lacZ)

Available reactivities

Aspergillus, E. coli (Escherichia coli), Bac (Bacteria), All Species

Available hosts

Mouse, Rabbit

Available applications

Enzyme Immunoassay (E), Frozen Sections (C), Immunocytochemistry/Immunofluorescence (ICC/IF), Immunoprecipitation (IP), Paraffin Sections (P), Western blot / Immunoblot (WB)

Background of Beta-galactosidase tag antibody

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.

General readings

This product has been used in:Peterson KR et al. Transgenic Cre expression mice for generation of erythroid-specific gene alterations. Genesis 39:1-9 (2004). PubMed PMID: 15124222
General / background references:The TH & Feltkamp TE Conjugation of fluorescein isothiocyanate to antibodies. I. Experiments on the conditions of conjugation. Immunology 18:865-73 (1970). PubMed PMID: 5310665

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Primary Antibodies

Catalog No. Host Iso. Clone Pres. React. Applications  

Beta-galactosidase tag (Center) antibody

Western blot of purified E. coli  beta-galactosidase sample; reduced sample, immunostained by mAb BG-02 and goat anti-mouse IgG (H+L)-HRP conjugate. Mouse IgG1 BG-02 Purified E. coli ICC/IF, WB
0.1 mg / €230.00
  Acris Antibodies GmbH

Beta-galactosidase tag antibody

Figure 1. Western blotting using Fluorescein conjugated anti-Beta-galactosidase antibody shows a band at ~117 kDa (lanes 1 - 3) corresponding to 60 ng, 30 ng and 15 ng, respectively of b-Gal present in partially purified preparations (arrowhead). Lane 4 shows no cross reactivity with proteins present in a non-specific control E. coli lysate. Proteins were  resolved on a 4-20% Tris-glycine gel by SDS-PAGE and transferred to Nitrocellulose and blocking using blocking buffer for fluorescent Western blotting. The membrane was probed with Fluorescein conjugated anti-Beta-galactosidase (Cat.-No. R1064F) diluted to 1/10,000. Reaction occurred for 2 hours at room temperature. Molecular weight estimation was made by comparison to a prestained MW marker in lane M. Fluorescence image was captured using the VersaDoc® Imaging System. Other detection systems will yield similar results. Rabbit Serum E. coli C, E, P, WB
2 ml / €450.00
  Acris Antibodies GmbH

Beta-galactosidase tag antibody

Beta-galactosidase tag Rabbit C, WB
0.2 mg / €390.00
  Abnova Taiwan Corp.

Beta-galactosidase tag antibody

Beta-galactosidase tag Mouse IgG1 2E9 Purified Aspergillus, E. coli E
1 mg / €310.00
  HyTest Ltd.

Proteins & Growth Factors

Catalog No. Species Pres. Purity Source  

Beta-galactosidase tag

Beta-galactosidase tag E. coli 600 U/mg
5 mg / €380.00
  Acris Antibodies GmbH

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