TYPE: sentence[0..338]
TEXT: Although the cocrystal structure of MarA with the marRAB marbox DNA  indicates no interaction between the two molecules at this position  , we considered the possibility that steric hindrance between the marbox DNA and MarA could limit activation by MarA when position 12 is not a T residue ( see the Discussion for a fuller treatment ) .
POS : Although_IN the_DT cocrystal_JJ structure_NN of_IN MarA_NN with_IN the_DT marRAB_NN marbox_NN DNA_NN indicates_VBZ no_DT interaction_NN between_IN the_DT two_CD molecules_NNS at_IN this_DT position_NN ,_, we_PRP considered_VBD the_DT possibility_NN that_IN steric_JJ hindrance_NN between_IN the_DT marbox_NN DNA_NN and_CC MarA_NN could_MD limit_VB activation_NN by_IN MarA_NN when_WRB position_NN 12_CD is_VBZ not_RB a_DT T_NN residue_NN -LRB-_-LRB- see_VB the_DT Discussion_NN for_IN a_DT fuller_JJR treatment_NN -RRB-_-RRB- ._. 
TREE: (ROOT (S (SBAR (IN Although) (S (NP (NP (DT the) (JJ cocrystal) (NN structure)) (PP (IN of) (NP (NP (NN MarA)) (PP (IN with) (NP (DT the) (NN marRAB) (NN marbox) (NN DNA)))))) (VP (VBZ indicates) (NP (NP (DT no) (NN interaction)) (PP (IN between) (NP (DT the) (CD two) (NNS molecules)))) (PP (IN at) (NP (DT this) (NN position)))))) (, ,) (NP (PRP we)) (VP (VBD considered) (NP (DT the) (NN possibility)) (SBAR (IN that) (S (NP (NP (JJ steric) (NN hindrance)) (PP (IN between) (NP (DT the) (NN marbox) (NN DNA) (CC and) (NN MarA)))) (VP (MD could) (VP (VB limit) (NP (NN activation)) (PP (IN by) (NP (NN MarA))) (SBAR (WHADVP (WRB when)) (S (NP (NN position) (CD 12)) (VP (VBZ is) (RB not) (NP (NP (DT a) (NN T) (NN residue)) (PRN (-LRB- -LRB-) (S (VP (VB see) (NP (NP (DT the) (NN Discussion)) (PP (IN for) (NP (DT a) (JJR fuller) (NN treatment)))))) (-RRB- -RRB-))))))))))) (. .)))