Chains and heterogens:
PDB Chain Sequences:
>1ks5A (A:) qtmcsqydsassppysvnqnlwgeyqgtgsqcvyvdklsssgaswhtewtwsggegtvks ysnsgvtfnkklvsdvssiptsvewkqdntnvnadvaydlftaanvdhatssgdyelmiw larygniqpigkqiatatvggkswevwygsttqagaeqrtysfvsespinsysgdinaff syltqnqgfpassqylinlqfgteaftggpatftvdnwtasvn