Active Lactamase Beta (LACTb)
G24; MRPL56; Mitochondrial Ribosomal Protein L56; Serine beta-lactamase-like protein LACTB, mitochondrial
Overview
Properties
- Product No.APJ512Hu01
- Organism SpeciesHomo sapiens (Human) Same name, Different species.
- ApplicationsCell culture; Activity Assays.
Research use only - DownloadInstruction Manual
- CategoryEnzyme & Kinase
- Buffer FormulationPBS, pH7.4, containing 0.01% SKL, 5% Trehalose.
- Traits Freeze-dried powder, Purity > 90%
- Isoelectric Point8.6
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Activity test

Serine beta-lactamase-like protein (LACTB),an active-site serine protease,is the only mammalian mitochondrial homolog evolved from penicillin-binding proteins and β-lactamases (PBP-βLs) in bacteria.It is localized in the mitochondrial intermembrane space, where it assembles into filaments to regulate mitochondrial membrane organization and the efficiency of essential metabolic processes. Besides,C Reactive Protein (CRP) has been identified as an interactor of LACTB, thus a functional binding ELISA assay was conducted to detect the interaction of recombinant human LACTB and recombinant dog CRP. Briefly, LACTB was diluted serially in PBS with 0.01% BSA (pH 7.4). Duplicate samples of 100 μl were then transferred to CRP-coated microtiter wells and incubated for 1h at 37℃. Wells were washed with PBST and incubated for 1h with anti-LACTB pAb, then aspirated and washed 3 times. After incubation with HRP labelled secondary antibody for 1h at 37℃, wells were aspirated and washed 5 times. With the addition of substrate solution, wells were incubated 15-25 minutes at 37℃. Finally, add 50 µL stop solution to the wells and read at 450/630nm immediately. The binding activity of recombinant human LACTB and recombinant dog CRP was shown in Figure 1, the EC50 for this effect is 0.152ug/mL.
Usage
Reconstitute in 10mM PBS (pH7.4) to a concentration of 0.1-1.0 mg/mL. Do not vortex.
Storage
Avoid repeated freeze/thaw cycles. Store at 2-8°C for one month. Aliquot and store at -80°C for 12 months.
Stability
The thermal stability is described by the loss rate. The loss rate was determined by accelerated thermal degradation test, that is, incubate the protein at 37°C for 48h, and no obvious degradation and precipitation were observed. The loss rate is less than 5% within the expiration date under appropriate storage condition.
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