| Products | Lysozyme Fluorometric (Green) Assay Kit, EnzChek® from Molecular Probes (Invitrogen) | |
| Company | Molecular Probes (Invitrogen) | |
| Item | Lysozyme Fluorometric (Green) Assay Kit, EnzChek® | |
| Price | ||
| Description | The EnzChek Lysozyme Assay Kit (E-22013) provides
researchers with a sensitive assay to measure levels of lysozyme
activity in solution. This fluorescence-based assay can detect
lysozyme activity down to 20 U/mL (Figure 1). The assay
measures lysozyme activity on Micrococcus lysodeikticus cell
walls, which are labeled to such a degree that the fluorescence
is quenched. Lysozyme action can relieve this quenching,
yielding a dramatic increase in fluorescence that is proportional
to lysozyme activity. The fluorescence increase can be measured
using any spectrofluorometer, mini-fluorometer or fluorescence
microplate reader that can detect fluorescein (Figure 2).
Lysozyme (muramidase) is a ubiquitous enzyme present in human serum, urine, tears, seminal fluid and milk. Lysozyme hydrolyzes b-(1-4)-glucosidic linkages between N-acetylmuramic acid and N-acetyl-D-glucosamine residues present in the mucopolysaccharide cell well of a variety of microorganisms. Serum and urine lysozyme levels may be elevated in acute myelomonocytic leukemia (FAB-M4), chronic myelomonocytic leukemia (CMML) and chronic myelocytic leukemia (CML).1 Increased serum lysozyme activity is also present in tuberculosis,2 sarcoidosis, 2 megaloblastic anemias,3 acute bacterial infections, ulcerative colitis 4 and Crohns disease.2,4 Elevated lysozyme levels in urine and serum occur during severe renal insufficiency,5 renal transplant rejection,6 urinary tract infections,7 glomerulonephritis 5 and nephrosis.5 | |
| Info | Molecular Probes (Invitrogen)PO Box 22010 Eugene, OR 97402-0469
Fax Number: 1-541-344-6504 Web Site: http://probes.invitrogen.com |