Chains and heterogens:
PDB Chain Sequences:
>1b0uA (A:) nklhvidlhkrygghevlkgvslqaragdvisiigssgsgkstflrcinflekpsegaii vngqninlvrdkdgqlkvadknqlrllrtrltmvfqhfnlwshmtvlenvmeapiqvlgl skhdareralkylakvgideraqgkypvhlsggqqqrvsiaralamepdvllfdeptsal dpelvgevlrimqqlaeegktmvvvthemgfarhvsshviflhqgkieeegdpeqvfgnp qsprlqqflkgslkkleh