Chains and heterogens:
PDB Chain Sequences:
>1apb_ (-) nlklgflvkqpeepwfqtewkfadkagkdlgfevikiavpdgektlnaidslaasgakgf victpdpklgsaivakargydmkviavddqfvnakgkpmdtvplvmmaatkigerqgqel ykemqkrgwdvkesavmaitaneldtarrrttgsmdalkaagfpekqiyqvptksndipg afdaansmlvqhpevkhwlivgmndstvlggvrategqgfkaadiigigingvdavsels kaqatgfygsllgspdvhgykssemlynwvakdveppkftevtdvvlitrdnfkeelekk glggk