>4q7tB (B:) observed residues (from ATOM records)
aiikefmrfkvrmegtvnghefeiegegegrpyegfqtaklkvtkggplpfawdilsplx
skayvkhpadipdyfklsfpegfkwervmnyedggvvtvtqdsslqdgefiykvkmrgtn
fpsdgpvmqkktmgweassermypedgalkgeirmrlklkdgghytsevkttykakksvq
lpgayivgiklditshnedytiveqyeraegrhstgg