>pdb|3o7m|A B C D SNAMNIEIKDTLISEEQLQEKVKELALQIERDFEGEEIVVIAVLKGSFVFAADLIRHIKNDVTIDFISASSYGNQTETTGKVKLLKDIDVNITGKNVIVVEDIIDSGLTLHFLKDHFFMHKPKALKFCTLLDKPERRKVDLTAEYVGFQIPDEFIVGYGIDCAEKYRNLPFIASVVTEESYNLKSR