Sequence alignment between 1zbf(A) and UniProt seq Q9KEI9 (RNH1_BACHD):

Q9KEI9 (RNH1_BACHD): Ribonuclease H from Halalkalibacterium halodurans (strain ATCC BAA-125 / DSM 18197 / FERM 7344 / JCM 9153 / C-125)
                 10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190      
         ---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+------
UniProt: MAKSKYYVVWNGRKPGIYTSWSACEAQVKGYTGAKFKSYPSKEEAEAAFRGEEATPKLAKEEIIWESLSVDVGSQGNPGIVEYKGVDTKTGEVLFEREPIPIGTNNMGEFLAIVHGLRYLKERNSRKPIYSDSQTAIKWVKDKKAKSTLVRNEETALIWKLVDEAEEWLNTHTYETPILKWQTDKWGEIKADYGRK
         ...................................................................................................................................X................................................................
PDB seq: -------------------------------------------------------------EIIWESLSVDVGSQGNPGIVEYKGVDTKTGEVLFEREPIPIGTNNMGEFLAIVHGLRYLKERNSRKPIYSNSQTAIKWVKDKKAKSTLVRNEETALIWKLVDEAEEWLNTHTYETPILKWQTDKWGEIKADY---
                                                                      --------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---   
                                                                             70        80        90       100       110       120       130       140       150       160       170       180       190