>1v4bA (A:) observed residues (from ATOM records)
skvlvlkssilagysqsnqlsdyfveqwrekhsadeitvrdlaanpipvldgelvgalra
pltprqqealalsdeliaelkahdviviaapmynfnistqlknyfdlvaragvtfryten
gpeglvtgkkaivitsrggihkdgptdlvtpylstflgfigitdvkfvfaegiaygpema
akaqsdakaaidsivsa