>2b1xA (A:) observed residues (from ATOM records)
mlsnelrqtlqkglhdvnsdwtvpaaiindpevhdvererifghawvflaheseipergd
yvvryisedqfivcrdeggeirghlnacrhrgmqvcraemgntshfrcpyhgwtysntgs
lvgvpagkdaygnqlkksdwnlrpmpnlasykglifgsldphadsledylgdlkfyldiv
ldrsdaglqvvgapqrwvidanwklgadnfvgdayhtmmthrsmvelglappdpqfalyg
ehihtghghglgiigpppgmplpefmglpeniveelerrltpeqveifrptafihgtvfp
nlsignflmgkdhlsaptafltlrlwhplgpdkmevmsfflvekdapdwfkdesyksylr
tfgisggfeqddaenwrsitrvmggqfaktgelnyqmgrgvlepdpnwtgpgeaypldya
eanqrnfleywmqlmlaespl