Sequence alignment between 1ib1(E) and UniProt seq Q29495 (SNAT_SHEEP):

Q29495 (SNAT_SHEEP): Serotonin N-acetyltransferase from Ovis aries
                 10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       
         ---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+-------
UniProt: MSTPSVHCLKPSPLHLPSGIPGSPGRQRRHTLPANEFRCLTPEDAAGVFEIEREAFISVSGNCPLNLDEVQHFLTLCPELSLGWFVEGRLVAFIIGSLWDEERLTQESLALHRPRGHSAHLHALAVHRSFRQQGKGSVLLWRYLHHVGAQPAVRRAVLMCEDALVPFYQRFGFHPAGPCAIVVGSLTFTEMHCSLRGHAALRRNSDR
         ..............................X................................................................................................................................................................................
PDB seq: -----------------SGIPGSPGRQRRHXLPANEFRCLTPEDAAGVFEIEREAFISVSGNCPLNLDEVQHFLTLCPELSLGWFVEGRLVAFIIGSLWDEERLTQESLALHRPRGHSAHLHALAVHRSFRQQGKGSVLLWRYLHHVGAQPAVRRAVLMCEDALVPFYQRFGFHPAGPCAIVVGSLTFTEMHCSLR-----------
                          --+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+------           
                           20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190