Sequence alignment between 2ex3(B) and UniProt seq P03681 (TERM_BPPH2):

P03681 (TERM_BPPH2): Primer terminal protein from Bacillus phage phi29
                 10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250       260      
         ---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+------
UniProt: MARSPRIRIKDNDKAEYARLVKNTKAKIARTKKKYGVDLTAEIDIPDLDSFETRAQFNKWKEQASSFTNRANMRYQFEKNAYGVVASKAKIAEIERNTKEVQRLVDEKIKAMKDKEYYAGGKPQGTIEQRIAMTSPAHVTGINRPHDFDFSKVRSYSRLRTLEESMEMRTDPQYYEKKMIQLQLNFIKSVEGSFNSFDAADELIEELKKIPPDDFYELFLRISEISFEEFDSEGNTVENVEGNVYKILSYLEQYRRGDFDLSLKGF
         ....................................XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX.................................................XXXXXXXXXXXXXXXXXXXX.......................................................................................XXXXXXX.................................
PDB seq: ------------------------------------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXANMRYQFEKNAYGVVASKAKIAEIERNTKEVQRLVDEKIKAMKDKEYYA--------------------TGINRPHDFDFSKVRSYSRLRTLEESMEMRTDPQYYEKKMIQLQLNFIKSVEGSFNSFDAADELIEELKKIPPDDFYELFLRISEIS-------GNTVENVEGNVYKILSYLEQYRRGDF-------
                                             ---------+------+---------+----------------+---------+---------+---------+---------                    +---------+---------+---------+---------+---------+---------+---------+---------+------       ------+---------+---------       
                                                     10     30        40               80        90       100       110                           140       150       160       170       180       190       200       210       220                 240       250