Cell culture supernatants were precipitated by adding an equal volume of methanol and 0.25 volumes of chloroform, vortexed and centrifuged at 20.000 × g for 10 min. The upper phase was discarded and 500 µl of methanol was added to the interphase. This mixture was centrifuged at 20.000 × g for 10 min and the protein pellet dried at 55 °C, resuspended in Laemmli buffer and boiled at 99°C for 5 min. Samples were separated by SDS-PAGE (15%) and transferred onto nitrocellulose membranes. As indicated, blots were incubated with rabbit polyclonal antibody to anti murine caspase-1 p10 (sc-514, Santa Cruz Biotechnology, Santa Cruz, CA), rabbit polyclonal anti human caspase-1 p10 (sc-515, Santa Cruz Biotechnology), rabbit polyclonal anti human cleaved IL-1β (Asp116) (Cell Signaling, Boston, MA) or rabbit polyclonal anti murine cathepsin B (R&D Systems, Minneapolis, MN).
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Chemicals & Drugs
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Amino Acid
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Cathepsin B
Cathepsin B
Cathepsin B is a lysosomal cysteine protease that plays a key role in protein degradation and turnover.
It is involved in various physiological and pathological processes, including inflammation, cancer, and neurodegeneration.
This enzyme is a valuable target for research and therapeutic development.
PubCompare.ai's AI-driven platform can help streamline your Cathepsin B research by identifying the most reliable protocols from literature, preprints, and patents.
Leverage data-driven comparisons to optimize research methods and products, enhancing reproducibility and accuracy.
Discover the power of PubCompare.ai to advance your Cathepsin B research needs.
It is involved in various physiological and pathological processes, including inflammation, cancer, and neurodegeneration.
This enzyme is a valuable target for research and therapeutic development.
PubCompare.ai's AI-driven platform can help streamline your Cathepsin B research by identifying the most reliable protocols from literature, preprints, and patents.
Leverage data-driven comparisons to optimize research methods and products, enhancing reproducibility and accuracy.
Discover the power of PubCompare.ai to advance your Cathepsin B research needs.
Most cited protocols related to «Cathepsin B»
Caspase 1
Cathepsin B
Cell Culture Techniques
Chloroform
Homo sapiens
Immunoglobulins
Interleukin-1 beta
Interphase
Laemmli buffer
Methanol
Mus
Nitrocellulose
Proteins
Rabbits
SC 514
SDS-PAGE
Tissue, Membrane
1-hydroxybenzotriazole
1H NMR
acetonitrile
Acids
Amino Acids
Bos taurus
Buffers
Carica papaya
Cathepsin B
Dialysis
Doxorubicin
Duxon
Esters
Gel Chromatography
High-Performance Liquid Chromatographies
Hydrochloride, Doxorubicin
hydroxypropyl methacrylate
Latex
Light
Liquid Chromatography
Mass Spectrometry
Papain
Polymerization
Polymers
Proteins
Resins, Plant
Sodium Chloride
Solvents
Spleen
Sulfoxide, Dimethyl
Trifluoroethanol
trityl chloride
Total protein was extracted from snap-frozen samples of DD cords and nodules from 3 of the original cohort of 10 patients used for DAB IHC staining, by pestle homogenization (cat# PES-15-B-SI, Corning, N.Y.) in ice-cold Radioimmunoprecipitation assay buffer buffer (cat# R0278, Sigma-Aldrich, St. Louis, Mass.) supplemented with 1× HALT protease and phosphatase inhibitor cocktail (cat# 78440, Pierce Biotechnology, Rockford, Ill.) and 10 mM dithiothreitol (cat# 43816, Sigma-Aldrich). Soluble proteins were precipitated with ProteoExtract Protein Precipitation Kit (cat# 539180, Merck Millipore, Billerica, Mass.) and then resuspended at 70°C in Bolt 1× lithium dodecyl sulfate sample buffer (reduced sample) (cat# B0007, Thermo Fisher Scientific, Waltham, Mass.) at -20°C for 1 hour. Equal amounts of protein (~30 μg total protein per sample) were heated at 70oC and resolved by 4–12% 1D-PAGE (cat# NW04120BOX, Thermo Fisher Scientific) and transferred to a polyvinylidene fluoride membrane (cat# IB24001, Invitrogen, Carlsbad, Calif.) using an iBlot 2 (cat# IB21001, Thermo Fisher Scientific). Blotted membranes were blocked using 10 mL of 1× iBind Flex FD solution (cat# SLF2019, Thermo Fisher Scientific) for 5 minutes at room temperature and probed using the iBind Flex device (cat# SLF2000, Thermo Fisher Scientific) for cathepsin B (1:250; cat# SC-6490-R, Santa Cruz), cathepsin D (1:250; cat# SC-6486, Santa Cruz), cathepsin G (1:250; cat# ab197354, Abcam, Cambridge, United Kingdom), and β-actin (1:500; cat# ab8226 and ab8229, Abcam). Appropriate secondary antibodies were goat anti- rabbit Alexa Fluor 647 (1:2000; cat# A21244, Life Technologies) for cathepsins B and D, chicken anti-goat Alexa Fluor 647 (1:2000; cat# A21469, Life Technologies) for β-actin ab8229, goat anti-mouse Alexa Fluor 488 (1:2000; cat# A21202, Life Technologies) for β-actin ab8226, and goat anti-rabbit horseradish peroxidase (1:2000; cat# ab6721, Abcam) for cathepsin G. Clarity Western ECL (cat# 1705061, Bio-Rad) was used as the substrate for visualizing horseradish peroxidase detected protein bands and the Chemi Doc MP Imaging System (Bio-Rad) and Image Lab 5.0 software (Bio-Rad) were used for band detection and analysis. All experiments were performed in triplicate. Snap-frozen tonsillar tissue was used as control tissue for cathepsin B27 (link) and cathepsin D28 (link) and a recombinant cathepsin G protein (cat# H00001511-Q01, Novus Biologicals, Littleton, Colo.) was used as an appropriate positive control. Matched mouse (1:500; cat# ab18443, Abcam) and rabbit (1:500; cat# ab171870, Abcam) isotype controls were used as appropriate negative controls.
Actins
alexa fluor 488
Alexa Fluor 647
Antibodies
Biological Factors
Buffers
Cathepsin B
Cathepsin D
Cathepsins
Chickens
Cold Temperature
Cone-Rod Dystrophy 2
CTSB protein, human
CTSG protein, human
Dithiothreitol
dodecyl sulfate, lithium salt
Freezing
Goat
Horseradish Peroxidase
Immunoglobulin Isotypes
Medical Devices
Mus
Novus
Palatine Tonsil
Patients
Peptide Hydrolases
Phosphoric Monoester Hydrolases
polyvinylidene fluoride
Proteins
Rabbits
Radioimmunoprecipitation Assay
Recombinant Proteins
Tissue, Membrane
Tissues
Animals
Bone Tissue
Cathepsin B
Cathepsins
endopeptidase B
Endopeptidases
Fluorescence
Inflammation
Joints
Knee
Knee Joint
Plasma Kallikrein
Plasmin
protease V
Saline Solution
bryostatin 1
Cathepsin B
Cells
Ethanol
Melanoma
MMP9 protein, human
SDS-PAGE
Most recents protocols related to «Cathepsin B»
A slightly modified protocol
from the commercially available assay (BPS Bioscience) was used. Dithiothreitol
was substituted with tris(2-carboxyethyl)phosphine (TCEP), the latter
of which was found not to alter the activity of the enzyme in the
assay. The cathepsin B enzyme was thawed on ice and activated by dilution
to 10.0 ng/μL with assay buffer. The enzyme solution was further
diluted with assay buffer to 0.02 ng/μL. Twenty microliters
of the enzyme solution was mixed with 5 μL of increasing concentrations
of the complex [2% (v/v) DMSO] diluted in assay buffer in the dark.
The mixture was incubated for 10 min at 37 °C with slow shaking.
The substrate (Z-Leu-Arg-AMC) was diluted to 10 μM, and 25 μL
was added to the enzyme mixture. This yields a mixture containing
10 mM Tris-HCl, 0.05% glycerol, 300 μM TCEP, and 10 μM
cathepsin B substrate. The mixture was incubated for 60 min at 37
°C with slow shaking. The generated fluorescence signal (λex = 360 nm; λem = 460 nm) was recorded with
a Synergy H4 (BioTek) microplate reader. As a positive control, the
known inhibitor E-64 (IC50 = 4 ± 2 nM) was used.
from the commercially available assay (BPS Bioscience) was used. Dithiothreitol
was substituted with tris(2-carboxyethyl)phosphine (TCEP), the latter
of which was found not to alter the activity of the enzyme in the
assay. The cathepsin B enzyme was thawed on ice and activated by dilution
to 10.0 ng/μL with assay buffer. The enzyme solution was further
diluted with assay buffer to 0.02 ng/μL. Twenty microliters
of the enzyme solution was mixed with 5 μL of increasing concentrations
of the complex [2% (v/v) DMSO] diluted in assay buffer in the dark.
The mixture was incubated for 10 min at 37 °C with slow shaking.
The substrate (Z-Leu-Arg-AMC) was diluted to 10 μM, and 25 μL
was added to the enzyme mixture. This yields a mixture containing
10 mM Tris-HCl, 0.05% glycerol, 300 μM TCEP, and 10 μM
cathepsin B substrate. The mixture was incubated for 60 min at 37
°C with slow shaking. The generated fluorescence signal (λex = 360 nm; λem = 460 nm) was recorded with
a Synergy H4 (BioTek) microplate reader. As a positive control, the
known inhibitor E-64 (IC50 = 4 ± 2 nM) was used.
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arginine 4-methyl-7-coumarylamide
Biological Assay
Buffers
Cathepsin B
enzyme activity
Enzymes
Fluorescence
Glycerin
phosphine
Sulfoxide, Dimethyl
tris(2-carboxyethyl)phosphine
Tromethamine
The nirB and pagC promoters, as well as the SspH1 and Cathepsin B (codon-optimized for expression in S. Typhimurium) sequences, were utilized in this study8 (link),82 (link). The frr promoter was obtained from YS1646 S. Typhimurium by PCR. The pGP-Tn7-Cm plasmid backbone11 (link) was digested using FastDigest restriction enzymes EcoRI and KpnI (Thermo Fisher Scientific). The promoter, secretory signal, and antigen sequences were inserted using the pEASY—Uni Seamless Cloning and Assembly kit (TransGen Biotech, Beijing, China). Following the construction of novel Tn7 plasmids, DAP−E. coli MGN-617 was transformed to generate 3 novel conjugative donor strains. The transformed E. coli strains were then used for conjugation experiments with a YS1646 strain containing the temperature-sensitive pSTNSK plasmid which encodes the Tn7 transposase system and confers Km resistance11 (link). Donor E. coli and recipient YS1646 were resuspended in LB supplemented with Km and DAP. About 100 μL of the donor strain and 50 μL of the recipient strain were centrifuged together and then resuspended in 10 μL at 30 °C for 5 h. Mixed culture was later grown on LB Km-Cm plates at 37 °C, and YS1646 colonies that grew in the absence of DAP, but that had lost resistance to antibiotic markers present on the pSTNSK plasmid but gained Cm resistance associated with the attTn7 targeting sequence were selected. Chromosomal integration at the attTn7 was then confirmed by PCR. The temperature-sensitive pCP20 plasmid, encoding the recombinase flippase (FLP) and conferring Amp and Cm resistance, was transformed into YS1646 strains. The Cm resistance cassette, integrated at the attTn7 site, was flanked by two FRT regions. Loss of the Cm resistance cassette is mediated by FLP-FRT recombination. Transformants were selected on LB-Amp plates at 30 °C to maintain pCP20 activity and then serially passaged on LB-Amp at 30 °C as well as LB-Cm and LB at 37 °C to screen for loss of the pCP20 plasmid and antibiotic susceptibility. Loss of Cm resistance was further confirmed by PCR. Following a similar strategy as outlined above, mCherry-expressing strains were generated for confocal microscopy experiments.
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Antibiotic Resistance, Microbial
Antibiotics
Antigens
Cathepsin B
Chromosomes
Codon
Deoxyribonuclease EcoRI
Escherichia coli
Microscopy, Confocal
Plasmids
Recombinase
Recombination, Genetic
secretion
Strains
Susceptibility, Disease
Tissue Donors
Transposase
Female 6–8-week-old C57BL/6 mice were immunized orally (PO) with recombinant S. enterica Typhimurium YS1646 derivative wherein the chromosomally integrated (CI) nirB promoter was used for expression and S. mansoni Cathepsin B that was secreted by fusion of CatB to an SspH1 Salmonella-specific type three secretory signal sequence (YS1646::NHC). This construct was selected for further in vivo investigation based on preliminary animal studies. PO dosing, consisting of 200 μL containing 1 × 109 cfu/dose, was administered by oral gavage every other day for 3 days (D1, D3, and D5). The multimodal vaccination schedule also included a simultaneous intramuscular (IM) dose on D1 of 20 μg recombinant CatB (rCatB) in 50 μL PBS9 (link) (Supplemental Fig. 1 ). Briefly, purified recombinant S. mansoni CatB was cloned and expressed in Pichia pastoris17 (link). All experiments included a PBS control group with IM-only (wild-type (WT) + rCatB) and PO-only (YS1646::NHC) groups as additional controls. The number of animals used at each experimental endpoint is indicated in the Figure legends.
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Animals
Cathepsin B
Females
Mice, Inbred C57BL
Multimodal Imaging
Pichia
Salmonella
secretion
Signal Peptides
Tube Feeding
Vaccination
Snap-frozen kidneys were used for protein analysis. Tissue lysates were prepared in tissue protein extraction reagent (Thermo Fisher Scientific; Waltham, MA, USA) containing Halt protease and phosphatase inhibitors (Thermo Fisher Scientific) using an Omni TH homogenizer (Warrenton, VA, USA). The tissue lysates were centrifuged at 13,000 rpm at 4 °C for 30 min, and the supernatant was sonicated twice for 10 s intervals while on ice. Protein concentration was determined using a Bicinchoninic acid protein assay (Thermo Fisher Scientific). Fifty micrograms of protein were loaded onto 4–20% Tris·HCl polyacrylamide gels and resolved using the Criterion electrophoresis system (BioRad; Hercules, CA, USA). The resolved proteins were electrically transferred onto nitrocellulose blotting membranes (GE Healthcare, Piscataway, NJ, USA) using the Criterion transfer system (Bio-Rad). After blocking with 5% nonfat milk 1× Tris-buffered saline (1×TBS) (Bio-Rad), the membranes were incubated with primary antibodies (anti-ENaC alpha 59 antibody [25 (link)], cathepsin B antibody (Cell Signaling Tech, 3383), anti-HSP70 antibody (4872; Cell Signaling; Danvers, MA, USA), caveolin-1 antibody (3267; Cell Signaling), annexin A2 antibody (8235; Cell Signaling), and lamin A/C antibody (4777; Cell Signaling) at a dilution of 1:1,000 in BSA in 1× TBS (5% wt/vol) or actin HRP antibody (A3854; Sigma-Aldrich, St. Louis, MO, USA) at a dilution of 1:20,000 while on a rocker at 4°C overnight. The membranes were then incubated with horseradish peroxidase-conjugated goat anti-rabbit secondary antibody at a dilution of 1:3000 prepared in blocking solution while on a rocker at room temperature for 1 h. The membranes were developed with SuperSignal West Pico reagent (Thermo Scientific) for 5 min, and then imaged on a Bio-Rad imager.
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Actins
Annexin A2
Antibodies
Antibodies, Anti-Idiotypic
bicinchoninic acid
Biological Assay
Cathepsin B
Caveolin 1
Electricity
Electrophoresis
Epithelial Sodium Channel, alpha Subunit
Freezing
Goat
Heat-Shock Proteins 70
Horseradish Peroxidase
Immunoglobulins
inhibitors
Kidney
LMNA protein, human
Milk, Cow's
Nitrocellulose
Peptide Hydrolases
Phosphoric Monoester Hydrolases
polyacrylamide gels
Proteins
Rabbits
Saline Solution
Technique, Dilution
Tissue, Membrane
Tissues
A253 cells were lysed in RIPA Lysis and Extraction Buffer with protease and phosphatase inhibitors (all from Thermo Fisher Scientific) and cleared by centrifugation at 17,000 g at 4°C for 25 minutes. Supernatants were heated at 97°C in NuPAGE LDS Sample Buffer for 10 minutes, resolved by SDS-PAGE, and electrophoretically transferred to polyvinylidene difluoride membranes (all from Thermo Fisher Scientific). Membranes were blocked with 2% non-fat dried milk at 25°C for 1 hour, and then incubated at 4°C overnight with one of the following primary antibodies: anti-cathepsin B (#AF953, R&D system, USA), anti-LAMP1 (#21997-1-AP, Proteintech, USA) or anti-α-tubulin (#T6199, Sigma-Aldrich, USA). After washing three times, membranes were incubated with rabbit or mouse IgG horseradish peroxidase-linked whole antibody (Sigma-Aldrich) at 25°C for 1 hour. Signals were visualized using Super Signal West Pico Chemiluminescent Substrate or Super Signal West Pico PLUS Chemiluminescent Substrate (both from Thermo Fisher Scientific).
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alpha-Tubulin
Antibodies
Buffers
Cathepsin B
Cells
Centrifugation
IGG-horseradish peroxidase
Immunoglobulins
inhibitors
lysosomal-associated membrane protein 1, human
Milk, Cow's
Mus
Peptide Hydrolases
Phosphoric Monoester Hydrolases
polyvinylidene fluoride
Rabbits
Radioimmunoprecipitation Assay
SDS-PAGE
Tissue, Membrane
Top products related to «Cathepsin B»
Sourced in United States, United Kingdom
Cathepsin B is a laboratory equipment product manufactured by Merck Group. It is a proteolytic enzyme that plays a role in various cellular processes. The core function of Cathepsin B is to cleave peptide bonds within proteins.
Sourced in United States
CA-074 Me is a laboratory reagent produced by Merck Group. It is a cathepsin B inhibitor with a core function of inhibiting the enzymatic activity of cathepsin B. No further details on intended use are provided.
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Fetal Bovine Serum (FBS) is a cell culture supplement derived from the blood of bovine fetuses. FBS provides a source of proteins, growth factors, and other components that support the growth and maintenance of various cell types in in vitro cell culture applications.
Sourced in United States, Germany, Italy, Sao Tome and Principe, United Kingdom, Macao, Japan, France, Switzerland, Belgium, Australia, China, Israel
Bafilomycin A1 is a macrolide compound that acts as a potent and specific inhibitor of vacuolar-type H+-ATPases (V-ATPases). V-ATPases are involved in the acidification of various intracellular compartments, making Bafilomycin A1 a useful tool for studying cellular processes that rely on pH regulation.
Sourced in United States, United Kingdom, Germany, Japan, France, China, Spain
LysoTracker Red DND-99 is a fluorescent dye that selectively stains acidic organelles, such as lysosomes, in live cells. It can be used to visualize and monitor the distribution and activity of lysosomes within the cellular environment.
Sourced in United States
Cathepsin B is a lysosomal cysteine protease enzyme involved in the degradation of proteins. It plays a role in various physiological and pathological processes.
Sourced in United States, Germany, United Kingdom, Japan, China, France, Canada, Spain, Belgium, Italy, Australia, Austria, Denmark, Netherlands, Switzerland, Ireland, New Zealand, Portugal, Brazil, Argentina, Singapore, Poland, Ukraine, Macao, Thailand, Finland, Lithuania, Sweden
Hoechst 33342 is a fluorescent dye that binds to DNA. It is commonly used in various applications, such as cell staining and flow cytometry, to identify and analyze cell populations.
Sourced in United States, Germany, United Kingdom, China, Italy, Sao Tome and Principe, France, Macao, India, Canada, Switzerland, Japan, Australia, Spain, Poland, Belgium, Brazil, Czechia, Portugal, Austria, Denmark, Israel, Sweden, Ireland, Hungary, Mexico, Netherlands, Singapore, Indonesia, Slovakia, Cameroon, Norway, Thailand, Chile, Finland, Malaysia, Latvia, New Zealand, Hong Kong, Pakistan, Uruguay, Bangladesh
DMSO is a versatile organic solvent commonly used in laboratory settings. It has a high boiling point, low viscosity, and the ability to dissolve a wide range of polar and non-polar compounds. DMSO's core function is as a solvent, allowing for the effective dissolution and handling of various chemical substances during research and experimentation.
Sourced in Germany
CA-074 is a laboratory equipment product manufactured by Merck Group. It is a cathepsin B inhibitor used for research purposes. The core function of CA-074 is to inhibit the enzymatic activity of cathepsin B, a cysteine protease enzyme.
Sourced in United States, Germany, United Kingdom, China, France, Macao, Sao Tome and Principe, Switzerland, Italy, Canada, Japan, Spain, Belgium, Israel, Brazil, India
Chloroquine is a laboratory chemical primarily used as a research tool in biochemical and cell biology applications. It is a white, crystalline solid that is soluble in water. Chloroquine is commonly used in experiments to study cellular processes, such as autophagy and endocytosis, by inhibiting the function of lysosomes. Its core function is to serve as a research reagent for scientific investigations, without making any claims about its intended use.
More about "Cathepsin B"
Cathepsin B, a vital lysosomal cysteine protease, plays a crucial role in protein degradation and turnover.
This versatile enzyme is involved in a wide array of physiological and pathological processes, including inflammation, cancer, and neurodegeneration.
As a valuable target for research and therapeutic development, Cathepsin B has garnered significant attention from the scientific community.
Exploring the various aspects of Cathepsin B can provide valuable insights.
CA-074 Me, a specific inhibitor of Cathepsin B, is often utilized in research to study the enzyme's function and its involvement in different cellular processes.
Furthermore, FBS (Fetal Bovine Serum) and Bafilomycin A1, a vacuolar-type H+-ATPase inhibitor, are commonly employed in Cathepsin B-related experiments to understand its regulation and localization within cells.
LysoTracker Red DND-99, a fluorescent dye, and Hoechst 33342, a nuclear stain, are frequently used in combination to visualize and analyze Cathepsin B activity and lysosomal dynamics.
DMSO (Dimethyl Sulfoxide) is another commonly used reagent in Cathepsin B research, serving as a solvent for various compounds.
Additionally, CA-074, another Cathepsin B inhibitor, and Chloroquine, a lysosomotropic agent, can provide further insights into the enzyme's role and regulation.
By leveraging the knowledge and tools available, researchers can delve deeper into the complexities of Cathepsin B and its significance in various biological processes.
PubCompare.ai's AI-driven platform can be a valuable resource, helping to identify the most reliable protocols and optimize research methods to enhance reproducibility and accuracy in Cathepsin B studies.
This versatile enzyme is involved in a wide array of physiological and pathological processes, including inflammation, cancer, and neurodegeneration.
As a valuable target for research and therapeutic development, Cathepsin B has garnered significant attention from the scientific community.
Exploring the various aspects of Cathepsin B can provide valuable insights.
CA-074 Me, a specific inhibitor of Cathepsin B, is often utilized in research to study the enzyme's function and its involvement in different cellular processes.
Furthermore, FBS (Fetal Bovine Serum) and Bafilomycin A1, a vacuolar-type H+-ATPase inhibitor, are commonly employed in Cathepsin B-related experiments to understand its regulation and localization within cells.
LysoTracker Red DND-99, a fluorescent dye, and Hoechst 33342, a nuclear stain, are frequently used in combination to visualize and analyze Cathepsin B activity and lysosomal dynamics.
DMSO (Dimethyl Sulfoxide) is another commonly used reagent in Cathepsin B research, serving as a solvent for various compounds.
Additionally, CA-074, another Cathepsin B inhibitor, and Chloroquine, a lysosomotropic agent, can provide further insights into the enzyme's role and regulation.
By leveraging the knowledge and tools available, researchers can delve deeper into the complexities of Cathepsin B and its significance in various biological processes.
PubCompare.ai's AI-driven platform can be a valuable resource, helping to identify the most reliable protocols and optimize research methods to enhance reproducibility and accuracy in Cathepsin B studies.