>1VBT_2|Chains C, D|SULFUR-SUBSTITUTED TETRAPEPTIDE|null AAPFX >1VBT_1|Chains A, B|CYCLOPHILIN A|Homo sapiens (9606) MVNPTVFFDIAVDGEPLGRVSFELFADKVPKTAENFRALSTGEKGFGYKGSCFHRIIPGFMCQGGDFTRHNGTGGKSIYGEKFEDENFILKHTGPGILSMANAGPNTNGSQFFICTAKTEWLDGKHVVFGKVKEGMNIVEAMERFGSRNGKTSKKITIADCGQLE