Guz and Pontet - Figure 1


A usual procedure for checking anti-light chain antisera in IEP.

a. The antisera tested are not specific of free kappa or lambda light chains, and would be better labeled as anti-bound and free light chain antisera.

b. The antisera tested are truly specific of free light chains and can be used as such. IgGk, IgGl are sera containing a monoclonal IgGkappa or lambda; U-free k, U-free l are urine containing free kappa or lambda light chains.