Sequence alignment between 2w4h(B) and UniProt seq P02609 (MYL11_CHICK):

P02609 (MYL11_CHICK): Myosin regulatory light chain 11 from Gallus gallus
                 10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160        
         ---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+--------
UniProt: MAPKKAKRRAAEGSSNVFSMFDQTQIQEFKEAFTVIDQNRDGIIDKDDLRETFAAMGRLNVKNEELDAMIKEASGPINFTVFLTMFGEKLKGADPEDVIMGAFKVLDPDGKGSIKKSFLEELLTTQCDRFTPEEIKNMWAAFPPDVAGNVDYKNICYVITHGEDKEGE
         ...........................X............................................................................................................................................
PDB seq: ---------------NVFSMFDQTQIQDFKEAFTVIDQNRDGIIDKDDLRETFAAMGRLNVKNEELDAMIKEASGPINFTVFLTMFGEKLKGADPEDVIMGAFKVLDPDGKGSIKKSFLEELLTTQCDRFTPEEIKNMWAAFPPDVAGNVDYKNICYVITHGEDK---
                        ------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---   
                             20        30        40        50        60        70        80        90       100       110       120       130       140       150       160