Chains and heterogens:
PDB Chain Sequences:
>1j6zA (A:) ettalvcdngsglvkagfagddapravfpsivgrprhqgvmvgmgqkdsyvgdeaqskrg iltlkypiehgiitnwddmekiwhhtfynelrvapeehptllteaplnpkanrekmtqim fetfnvpamyvaiqavlslyasgrttgivldsgdgvthnvpiyegyalphaimrldlagr dltdylmkiltergysfvttaereivrdikeklcyvaldfenemataassssleksyelp dgqvitignerfrcpetlfqpsfigmesagihettynsimkcdidirkdlyannvmsggt tmypgiadrmqkeitalapstmkikiiapperkysvwiggsilaslstfqqmwitkqeyd eagpsivhr