>4csiB (B:) observed residues (from ATOM records)
eqacsltterhpslswkkctaggqcqtvqasitldsnwrwthqvsgstncytgnkwdtsi
ctdakscaqnccvdgadytstygittngdslslkfvtkgqhstnvgsrtylmdgedkyqt
fellgneftfdvdvsnigcglngalyfvsmdadgglsrypgnkagakygtgycdaqcprd
ikfingeaniegnagagrygtccsemdiweannmataftphpctiigqsrcegdscggty
sneryagvcdpdgcdfnsyrqgnktfygkgmtvdttkkitvvtqflkdangdlgeikrfy
vqdgkiipnsestipgvegnsitqdwcdrqkvafgdiddfnrkggmkqmgkalagpmvlv
msiwddhasnmlwldstfpvdaagkpgaergacpttsgvpaeveaeapnsnvvfsnirfg
pigstvaglpg