Sequence alignment between 2na0(A) and UniProt seq P46065 (GUC1A_BOVIN):

P46065 (GUC1A_BOVIN): Guanylyl cyclase-activating protein 1 from Bos taurus
                 10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200     
         ---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+-----
UniProt: MGNIMDGKSVEELSSTECHQWYKKFMTECPSGQLTLYEFRQFFGLKNLSPWASQYVEQMFETFDFNKDGYIDFMEYVAALSLVLKGKVEQKLRWYFKLYDVDGNGCIDRDELLTIIRAIRAINPCSDSTMTAEEFTDTVFSKIDVNGDGELSLEEFMEGVQKDQMLLDTLTRSLDLTRIVRRLQNGEQDEEGASGRETEAAEADG
         X...........................................................................X................................................................................................................................
PDB seq: XGNIMDGKSVEELSSTECHQWYKKFMTECPSGQLTLYEFRQFFGLKNLSPWASQYVEQMFETFDFNKDGYIDFMEYEAALSLVLKGKVEQKLRWYFKLYDVDGNGCIDRDELLTIIRAIRAINPCSDSTMTAEEFTDTVFSKIDVNGDGELSLEEFMEGVQKDQMLLDTLTRSLDLTRIVRRLQN--------------------
         ---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+-----                    
                 10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180