Certain features of will be down for maintenance the evening of Friday August 18th starting at 8:00 pm CDT until Saturday August 19th at 12:01 pm CDT.   Please note that you still have telephone and email access to our local offices. We apologize for any inconvenience.

Antibody Characterization and Analysis

Sigma-Aldrich products for antibody characterization address both the commercial aspects of therapeutic antibody pharmacokinetics and quality assurance as well as many applications in basic research. The links below provide detailed technical resources and innovative products for antibody peptide mapping, glycan characterization and other aspects of antibody production, analysis, purification and fragmentation.
Immunoglobulin Isotypes and IgG Subtypes
Human IgG subtypes showing FaBRICATOR specificity according to Uniprot numbering.
Human immunoglobulin isotypes
Human immunoglobulin isotype and subtype heavy and light chain composition.