>1B21_1|Chains A, B, C|PROTEIN (BARNASE)|Bacillus amyloliquefaciens (1390)
AQVINTFDGVADYLQTYHKLPDNYITKSEAQALGWVASKGNLADVAPGKSIGGDIFSNREGKLPGKSGSTWREADINYTSGFRNSDRILYSSNWLIYKTTDHYQTFTKIR