Synonyms: CYP-S1; CYPB; PPIB; Peptidyl prolyl isomerase B; SCYLP

Purity: >=95% (SDS-PAGE)

Storage: -70C

UNSPSC Code: 12352200

General description: Cyclophilin B belongs to the cyclophilin family of immunophilins. It is present in the cytoplasm, nucleus, endoplasmic reticulum (ER)/golgi and plasma membrane. The protein can also be secreted from cells. The associated gene is mapped to human chromosome 15q22.

Biochem/physiol Actions: In endoplasmic reticulum (ER), Cyclophilin B works as a chaperone for exported proteins. It also participates in the intracellular transport of collagen and proper formation of collagen fibril. Cyclophilin B can bind to the Gag protein of human immunodeficiency type 1 (HIV-1) and helps in HIV replication. It is also involved in the infection of hepatitis C virus (HCV), Japanese encephalitis virus (JEV) and human papillomavirus type 16 (HPV16). Cyclophilin B protects against ER-mediated hypoxia-induced cell death. It is overexpressed in various malignancies.

Physical form: 1 mg/mL solution in 20 mM Tris-HCl buffer (pH 8.0) containing 20 mM NaCl, 0.5 mM DTT, 10% glycerol.

Preparation Note: Centrifuge the vial prior to opening.

Other Notes: MLLPGPSAAD EKKKGPKVTV KVYFDLRIGD EDVGRVIFGL FGKTVPKTVD NFVALATGEK GFGYKNSKFH RVIKDFMIQG GDFTRGDGTG GKSIYGERFP DENFKLKHYG PGWVSMANAG KDTNGSQFFI TTVKTAWLDG KHVVFGKVLE GMEVVRKVES TKTDSRDKPL KDVIIADCGK IEVEKPFAIA KE