Sequence alignment between 3f1h(4) and UniProt seq Q72JR0 (RL31_THET2):

Q72JR0 (RL31_THET2): 50S ribosomal protein L31 from Thermus thermophilus (strain ATCC BAA-163 / DSM 7039 / HB27) 
                 10        20        30        40        50        60        70 
         ---------+---------+---------+---------+---------+---------+---------+-
UniProt: MKEGIHPKLVPARIICGCGNVIETYSTKPEIYVEVCSKCHPFYTGQQRFVDTEGRVERFQRRYGDSYRKGR
PDB seq: ---------VPARIICGCGNVIETYSTKPEIYVEVCSKC--------------------------------
                  ----+---------+---------+-----                                
                     40        50        60