Sequence alignment between 1d4p(H) and UniProt seq P01050 (HIRV1_HIRME):

P01050 (HIRV1_HIRME): Hirudin variant-1 from Hirudo medicinalis 
                 10        20        30        40        50        60     
         ---------+---------+---------+---------+---------+---------+-----
UniProt: VVYTDCTESGQNLCLCEGSNVCGQGNKCILGSDGEKNQCVTGEGTPKPQSHNDGDFEEIPEEYLQ
         ..............................................................X..
PDB seq: -----------------------------------------------------GDFEEIPEEXLQ
                                                              +---------+-
                                                            300       310