Sequence alignment between 1vk2(A) and UniProt seq Q9WYY1 (UDGA_THEMA):

Q9WYY1 (UDGA_THEMA): Type-4 uracil-DNA glycosylase from Thermotoga maritima (strain ATCC 43589 / DSM 3109 / JCM 10099 / NBRC 100826 / MSB8)
                 10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190  
         ---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+--
UniProt: MYTREELMEIVSERVKKCTACPLHLNRTNVVVGEGNLDTRIVFVGEGPGEEEDKTGRPFVGRAGMLLTELLRESGIRREDVYICNVVKCRPPNNRTPTPEEQAACGHFLLAQIEIINPDVIVALGATALSFFVDGKKVSITKVRGNPIDWLGGKKVIPTFHPSYLLRNRSNELRRIVLEDIEKAKSFIKKEG
PDB seq: MYTREELMEIVSERVKKCTACPLHLNRTNVVVGEGNLDTRIVFVGEGPGEEEDKTGRPFVGRAGMLLTELLRESGIRREDVYICNVVKCRPPNNRTPTPEEQAACGHFLLAQIEIINPDVIVALGATALSFFVDGKKVSITKVRGNPIDWLGGKKVIPTFHPSYLLRNRSNELRRIVLEDIEKAKSFIKKE-
         ---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+- 
                 10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190