Active Cathepsin A (CTSA)
CTS-A; GLB2; GSL; NGBE; PPCA; PPGB; Protective Protein For Beta-Galactosidase; Galactosialidosis; Carboxypeptidase C; Carboxypeptidase L
- UOM
- FOB US$ 331.00 US$ 828.00 US$ 1,656.00 US$ 4,968.00 US$ 12,420.00
- Quantity
Overview
Properties
- Product No.APA348Ra01
- Organism SpeciesRattus norvegicus (Rat) Same name, Different species.
- ApplicationsCell culture; Activity Assays.
Research use only - DownloadInstruction Manual
- CategoryEnzyme & Kinase
- Buffer Formulation20mM Tris, 150mM NaCl, pH8.0, containing 1mM EDTA, 1mM DTT, 0.01% SKL, 5% Trehalose and Proclin300.
- Traits Freeze-dried powder, Purity > 90%
- Isoelectric Point7.0
Sign into your account
Share a new citation as an author
Upload your experimental result
Review

Contact us
Please fill in the blank.
Activity test

Figure. The binding activity of CTSA with NEU.
Cathepsin A (CTSA) is an enzyme that is classified both as a cathepsin and a carboxypeptidase. This gene encodes a glycoprotein that associates with lysosomal enzymes beta-galactosidase and neuraminidase to form a complex of high-molecular-weight multimers. The formation of this complex provides a protective role for stability and activity. It is protective for β-galactosidase and neuraminidase. Besides, Neuraminidase (NEU) has been identified as an interactor of CTSA, thus a binding ELISA assay was conducted to detect the interaction of recombinant rat CTSA and recombinant rat NEU. Briefly, CTSA were diluted serially in PBS, with 0.01% BSA (pH 7.4). Duplicate samples of 100µL were then transferred to NEU-coated microtiter wells and incubated for 2h at 37℃. Wells were washed with PBST and incubated for 1h with anti-CTSA pAb, then aspirated and washed 3 times. After incubation with HRP labelled secondary antibody, wells were aspirated and washed 3 times. With the addition of substrate solution, wells were incubated 15-25 minutes at 37℃. Finally, add 50µL stop solution to the wells and read at 450nm immediately. The binding activity of CTSA and NEU was shown in Figure 1, and this effect was in a dose dependent manner.
Usage
Reconstitute in 20mM Tris, 150mM NaCl (pH8.0) 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.
Increment services
-
BCA Protein Quantification Kit
-
Molecular Mass Marker for Protein
-
Monoclonal Antibody Customized Service
-
Polyclonal Antibody Customized Service
-
Protein Activity Test Experiment Service
-
Electrophoretic Mobility Shift Assay (EMSA) Experiment Service
-
Buffer
-
Lentivirus Packaging Experiment Service
-
Adenovirus Packaging Experiment Service
-
Real Time PCR Experimental Service
-
Spike RBD Protein (S-RBD)
-
Protein G
-
Protein A
Citations
- RHEUMATOID ARTHRITIS RELATED BIOMARKER20170350884