>3BIV_1|Chain A[auth L]|Thrombin light chain|Homo sapiens (9606) EADCGLRPLFEKKSLEDKTERELLESYID >3BIV_3|Chain C[auth I]|Hirudin|Hirudo medicinalis (6421) NGDFEEIPEEYL >3BIV_2|Chain B[auth H]|Thrombin heavy chain|Homo sapiens (9606) IVEGSDAEIGMSPWQVMLFRKSPQELLCGASLISDRWVLTAAHCLLYPPWDKNFTENDLLVRIGKHSRTRYERNIEKISMLEKIYIHPRYNWRENLDRDIALMKLKKPVAFSDYIHPVCLPDRETAASLLQAGYKGRVTGWGNLKETWTANVGKGQPSVLQVVNLPIVERPVCKDSTRIRITDNMFCAGYKPDEGKRGDACEGDSGGPFVMKSPFNNRWYQMGIVSWGEGCDRDGKYGFYTHVFRLKKWIQKVIDQF