Fc region of human immunoglobulin G1 (IgG1) protein, also known as Il-4, GenBank Accession No. P01857, a.a. 100-330, expressed in an HEK293 cell expression system. MW = 27 kDa.
Biotinylated Recombinant Human Immunoglobulin G1 Fc is produced by our Mammalian expression system and the target gene encoding Asp104-Lys330(Asp239Glu,Leu241Glu) is expressed with a Avi tag at the C-terminus.