>1b4x_A
 MFENITAAPA DPILGLADLF RADERPGKIN LGIGVYKDET GKTPVLTSVK
 KAEQYLLENE TTKNYLGIDG IPEFGRCTQE LLFGKGSALI NDKRARTAQT
 PGGTGALRVA ADFLAKNTSV KRVWVSNPSW PNHKSVFNSA GLEVREYAYY
 DAENHTLDFD ALINSLNEAQ AGDVVLFHGS CHNPTGIDPT LEQWQTLAQL
 SVEKGWLPLF DFAYQGFARG LEEDAEGLRA FAAMHKELIV ASSYSKNFGL
 YNERVGACTL VAADSETVDR AFSQMKAAIR ANYSNPPAHG ASVVATILSN
 DALRAIWEQE LTDMRQRIQR MRQLFVNTLQ EKGANRDFSF IIKQNGMFSF
 SGLTKEQVLR LREEFGVYAV ASGRVNVAGM TPDNMAPLCE AIVAVL