>4quxX (X:) observed residues (from ATOM records)
mdiilgirvqdsvilasskavtrgisvlkdsddktrqlsphtlmsfageagdtvqfaeyi
qaniqlysiredyelspqavssfvrqelaksirsrrpyqvnvliggydkkknkpelyqid
ylgtkvelpygahgysgfytfslldhhyrpdmtteegldllklcvqelekrmpmdfkgvi
vkivdkdgirqvddf