Recombinants or rec. proteins
Antigens are peptides or recombinant or native dependent on the production method.The kilo Daltons subunit weight of HCV core recombinant antigen a.a 2 a.a 192 of HCV polyprotein 22 [HCV core] compared to your protein ladder can be shifted a little due to electrophoresis effects. 1 kDa = 1000 g/mol protein
Hepatitis C virus (HCV) NS3, NS4, NS genotypes 1, 2, 3, 4, 5, are small (55–65 nm in size), enveloped, positive-sense single-stranded RNA viruses. Hepatitis C virus is the cause of hepatitis C and some cancers such as Liver Cancer (Hepatocellular carcinoma abbreviated HCC) and lymphomas in humans. HCV Core antigens or envelope proteins are used for immunization to obtain diagnostic antibodies.