Figure 1

Representative gel electrophoresis of PCR products. Detection of allele-specific amplified bands in 0.5% agarose gel by single specific primer-polymerase chain reaction (SSP-PCR).The gel is representative of the gel analysis of all DNA samples. Cont = control subject, EPS = extra-pulmonary sarcoidosis patient and PS = pulmonary sarcoidosis patient. The product size in bp refers to the amplification of a selective allele in that sample. The internal control represents a conserved region of the house keeping gene (provided in kit) and serves as an indication of the integrity of PCR reaction.