Human IL-23AIL-12B Heterodimer Protein, His TagTag Free (ILB-H52W5) is expressed from human 293 cells (HEK293). It contains AA Arg 2 0 - Pro 189 (IL23A) Ile 23 - Ser 328 (IL12B) (Accession Q9NPF7-1 (IL23A) P29460-1 (IL12B)). 1 * 1 mg