>3QNB_1|Chains A, B, C, D|Oxacillinase|Escherichia coli (668369) SITENTSWNKEFSAEAVNGVFVLCKSSSKSCATNDLARASKEYLPASTFKIPNAIIGLETGVIKNEHQVFKWDGKPRAMKQWERDLTLRGAIQVSAVPVFQQIAREVGEVRMQKYLKKFSYGNQNISGGIDKFWLEGQLRISAVNQVEFLESLYLNKLSASKENQLIVKEALVTEAAPEYLVHSKTGWGMGVTPQVGWWVGWVEKETEVYFFAFNMDIDNESKLPLRKSIPTKIMESEGIIGG