>sp|P12457|TBB_EUGGR Tubulin beta chain OS=Euglena gracilis GN=TUBB MREIVHIQAGQCGNQIGSKFWEVISDEQGVDPPDIPGDSDLQLERINVYYNEATGGRYVP AILMDLEPGTMDSVRAGPYGQIFRPDNFVFGQTGAGNNWAKGHYTEGPELIDSVLDVVRK EAESCDCLQGFQIAHSLGGGTGSGMGTLLISKIREEYPDRMMMTFSVIPSPKVSDTVVEP YNTTLSVHQLVENADEVMCIGNEALYDICLPTLKLTTPTFGHETLVSAVMSGVTCCLRFP GQLNSDLRKLAVNLIPFPRLHFFLVGFAPLTSRGSQQYRALTVPELTQQMFDAKNMMAAS DPAHGRYLTASAMFRGRMSTKEVDEQMLNVQNKNSSYFVEWIPNNIKSSVCDIPPKGLKM SATFIGNNTAIQEMFKRVSEQFTAMFRRKAFLHWYTGEGMDEMEFTEAESNMNDLVSEYQ QYQDATVEEEGEFDEEEDVEQY