▁consider ably ▁in ▁nature ▁from ▁the ▁T A LE s ▁and ▁R ip T AL S . ▁The ▁prote ins ▁encoded ▁by ▁these ▁gen es ▁were ▁studied ▁for ▁their ▁DNA ▁binding ▁properties ▁by ▁two ▁groups ▁independently ▁and ▁named ▁the ▁B ats ▁( B urk holder ia ▁T A LE - lik es ; ▁) ▁or ▁B urr H . ▁This ▁research ▁showed ▁that ▁the ▁repeat ▁units ▁of ▁the ▁Bur k holder ia ▁T A LE - lik es ▁bind ▁DNA ▁with ▁the ▁same ▁code ▁as ▁T A LE s , ▁govern ed ▁by ▁position ▁ 1 3 ▁of ▁each ▁repeat . ▁There ▁are , ▁however , ▁a ▁number ▁of ▁differences . ▁ ▁Bi ological ▁role ▁ ▁Bur k holder ia ▁T A LE - lik es ▁are ▁composed ▁almost ▁entirely ▁of ▁repe ats , ▁lack ing ▁the ▁large ▁non - rep et itive ▁domains ▁found ▁fl ank ing ▁the ▁repe ats ▁in ▁T A LE s ▁and ▁R p T AL s . ▁Those ▁domains ▁are ▁key ▁to ▁the ▁functions ▁of ▁T A LE s ▁and ▁R ip T AL s ▁allowing ▁them ▁to ▁in fil tr ate ▁the ▁plant ▁nucle us ▁and ▁turn ▁on ▁gene ▁expression . ▁ ▁It ▁is ▁therefore ▁currently ▁unclear ▁what ▁the ▁bi ological ▁roles ▁of ▁Bur k holder ia ▁T A LE - lik es ▁are . ▁What ▁is ▁clear ▁is ▁that ▁they ▁are ▁not ▁effect or ▁prote ins ▁secret ed ▁into ▁plant ▁cells ▁to ▁act ▁as ▁trans cription ▁factors , ▁the ▁bi ological ▁role ▁of ▁T A