>sp|P21881|Release 21.0|01-Mar-1992 MAAKTKKAIVDSKKQFDAIKKQFETFQILNEKGEVVNEAAMPDLTDDQLKELMRRMVFTR VLDQRSISLNRQGRLGFYAPTAGQEASQIATHFALEKEDFVLPGYRDVPQLIWHGLPLYQ AFLFSRGHFRGNQMPDDVNALSPQIIIGAQYIQTAGVALGLKKRGKKAVAITYTGDGGRS QGDFYEGINFAGAYKAPAIFVVQNNRYAISTPVEKQSAAETIAQKAVAAGIVGVQVDGMD PLAVYAATAEARERAINGEGPTLIETLTFRYGPHTMAGDDPTKYRTKEIENEWEQKDPLV RFRAFLENKGLWSEEEEAKVIEDAKEEIKQAIKKADAEPKQKVTDLMKIMYEKMPHNLEE QFEIYTQKESK