Chains and heterogens:
PDB Chain Sequences:
>1cvrA (A:) ytpveekengrmivivakkyegdikdfvdwknqrglrtevkvaediaspvtanaiqqfvk qeyekegndltyvllvgdhkdipakitpgiksdqvygqivgndhynevfigrfscesked lktqidrtihyernittedkwlgqalciasaeggpsadngesdiqhenvianlltqygyt kiikcydpgvtpkniidafnggislvnytghgsetawgtshfgtthvkqltnsnqlpfif dvacvngdflfsmpcfaealmraqkdgkptgtvaiiastidqywappmrgqdemneilce khpnnikrtfggvtmngmfamvekykkdgenmldtwtvfgdpsllvrtlvptemqvtapa nisasaqtfevacdyngaiatlsddgdmvgtaivkdgkaiiklnesiadetnltltvvgy nkvtvikdvkve