>tr|Q8IFJ9|Q8IFJ9_RIFPA Hemoglobin B2 chain OS=Riftia pachyptila GN=hbB2 WGNVWSAQFTGRRIAIAQAVFKDLFANVPDAVGLFGAVKGDEVNSNEFKAHCIRVVNGLD SSIGLLSDPATLNEQLSHLATQHKARSGVTKGGFSAIAQSFLRVMPQVASCFNPDAW