ACVR1B GI:4757720 activin A receptor, type IB isoform a precursor 1 maesagassf fplvvlllag sggsgprgvq allcactscl qanytcetdg 50 51 acmvsifnld gmehhvrtci pkvelvpagk pfyclssedl rnthccytdy 100 101 cnridlrvps ghlkepehps mwgpvelvgi iagpvfllfl iiiivflvin 150 151 yhqrvyhnrq rldmedpsce mclskdktlq dlvydlstsg sgsglplfvq 200 201 rtvartivlq eiigkgrfge vwrgrwrggd vavkifssre erswfreaei 250 251 yqtvmlrhen ilgfiaadnk dngtwtqlwl vsdyhehgsl fdylnrytvt 300 301 iegmiklals aasglahlhm eivgtqgkpg iahrdlkskn ilvkkngmca 350 351 iadlglavrh davtdtidia pnqrvgtkry mapevldeti nmkhfdsfkc 400 401 adiyalglvy weiarrcnsg gvheeyqlpy ydlvpsdpsi eemrkvvcdq 450 451 klrpnipnww qsyealrvmg kmmrecwyan gaarltalri kktlsqlsvq 500 501 edvki