sp|Q8ABA7|HIS7_BACTN Histidine biosynthesis bifunctional protein HisB OS=Bacteroides thetaiotaomicron (strain ATCC 29148 / DSM 2079 / JCM 5827 / CCUG 10774 / NCTC 10582 / VPI-5482 / E50) OX=226186 GN=hisB PE=1 SV=1