Chains and heterogens:
PDB Chain Sequences:
>1q1nA (A:) msypekfegiaiqshedwknpkktkydpkpfydhdidikieacgvcgsdihcaaghwgnm kmplvvgheivgkvvklgpksnsglkvgqrvgvgaqvfsclecdrckndnepyctkfvtt ysqpyedgyvsqggyanyvrvhehfvvpipenipshlaapllcggltvysplvrngcgpg kkvgivglggigsmgtliskamgaetyvisrssrkredamkmgadhyiatleegdwgeky fdtfdlivvcassltdidfnimpkamkvggrivsisipeqhemlslkpyglkavsisysa lgsikelnqllklvsekdikiwvetlpvgeagvheafermekgdvryrftlvgydkefsd