cytochrome b-245 heavy chain, CGD91-phox, NADPH oxidase 2, cytochrome b(558) subunit beta, cytochrome b-245 beta polypeptide, cytochrome b558 subunit beta, heme-binding membrane glycoprotein gp91phox, neutrophil cytochrome b 91 kDa polypeptide, p22 phagocyte B-cytochrome, superoxide-generating NADPH oxidase heavy chain subunit. CYBB A gene on chromosome Xq21.1 that encodes the cytochrome b beta chain, which is a primary component of the microbicidal oxidase system of phagocytes. NADPH oxidase complex, plasma membrane, superoxide-generating NADPH oxidase activity, defense response, oxidation-reduction process, superoxide anion generation. UniProtKB. x; UniProtKB. Protein knowledgebase. UniParc. Sequence archive. Help. Help pages, FAQs, UniProtKB manual, documents, news archive and Biocuration projects.. Cytochrome B-245, beta Polypeptide (CYBB) Peptide. Species: Human. Source: Synthetic. Order product ABIN2708992.. Page 3 of 12 INTRODUCTION The Human Cytochrome b-245 Beta Polypeptide ELISA Kit is based on a sandwich enzyme-linked immunosorbent assay (ELISA) technology..