Mouse Anti-Human IgG1 (hinge region) antibody [4E3] (AP) Cat. No. GTX04178-03 Cat. No. GTX04178-03 GTX04178-03 ELISA Image ELISA analysis of purified human immunoglobulins using serially diluted GTX04178-03 Mouse Anti-Human IgG1 (hinge region) antibody [4E3] (AP). See all Human IgG products