Sequence alignment between 2os8(B) and UniProt seq Q26068 (Q26068_PLAMG):

Q26068 (Q26068_PLAMG): Myosin regulatory light chain from Placopecten magellanicus
                 10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       
         ---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+-------
UniProt: MADKAASGVLTKLPQKQIQEMKEAFTMIDQNRDGFIDINDLKEMFSSLGRTPDDKELTAMLKEAPGPLNFTMFLSIFSDKLSGTDSEETIRNAFGMFDELDTKKLNIEYIKDLLENMGDNFNKDEMRMTFKEAPVEGGKFDYVRFVAMIKGSGDDDA
PDB seq: -----------------IQEMKEAFTMIDQNRDGFIDINDLKEMFSSLGRTPDDKELTAMLKEAPGPLNFTMFLSIFSDKLSGTDSEETIRNAFGMFDELDTKKLNIEYIKDLLENMGDNFNKDEMRMTFKEAPVEGGKFDYVRFVAMIKGS-----
                          ---+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+-     
                            20        30        40        50        60        70        80        90       100       110       120       130       140       150