Sequence alignment between 1l2n(A) and UniProt seq Q12306 (SMT3_YEAST):

Q12306 (SMT3_YEAST): Ubiquitin-like protein SMT3 from Saccharomyces cerevisiae (strain ATCC 204508 / S288c)
                 10        20        30        40        50        60        70        80        90       100 
         ---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+-
UniProt: MSDSEVNQEAKPEVKPEVKPETHINLKVSDGSSEIFFKIKKTTPLRRLMEAFAKRQGKEMDSLRFLYDGIRIQADQTPEDLDMEDNDIIEAHREQIGGATY
PDB seq: --------------------ETHINLKVSDGSSEIFFKIKKTTPLRRLMEAFAKRQGKEMDSLRFLYDGIRIQADQTPEDLDMEDNDIIEAHREQI-----
                             ---------+---------+---------+---------+---------+---------+---------+------     
                                     30        40        50        60        70        80        90