Sequence alignment between 4f7c(B) and UniProt seq P01888 (B2MG_BOVIN):

P01888 (B2MG_BOVIN): Beta-2-microglobulin from Bos taurus
                 10        20        30        40        50        60        70        80        90       100       110        
         ---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+--------
UniProt: MARFVALVLLGLLSLSGLDAIQRPPKIQVYSRHPPEDGKPNYLNCYVYGFHPPQIEIDLLKNGEKIKSEQSDLSFSKDWSFYLLSHAEFTPNSKDQYSCRVKHVTLEQPRIVKWDRDL
PDB seq: --------------------IQRPPKIQVYSRHPPEDGKPNYLNCYVYGFHPPQIEIDLLKNGEKIKSEQSDLSFSKDWSFYLLSHAEFTPNSKDQYSCRVKHVTLEQPRIVKWDRD-
                             ---------+---------+---------+---------+---------+---------+---------+---------+---------+------- 
                                     10        20        30        40        50        60        70        80        90