Chains and heterogens:
PDB Chain Sequences:
>1v4tA (A:) mveqilaefqlqeedlkkvmrrmqkemdrglrletheeasvkmlptyvrstpegsevgdf lsldlggtnfrvmlvkvgegeegqwsvktkhqmysipedamtgtaemlfdyisecisdfl dkhqmkhkklplgftfsfpvrhedidkgillnwtkgfkasgaegnnvvgllrdaikrrgd femdvvamvndtvatmiscyyedhqcevgmivgtgcnacymeemqnvelvegdegrmcvn tewgafgdsgeldeflleydrlvdessanpgqqlyekliggkymgelvrlvllrlvdenl lfhgeaseqlrtrgafetrfvsqvesdtgdrkqiynilstlglrpsttdcdivrracesv straahmcsaglagvinrmresrsedvmritvgvdgsvyklhpsfkerfhasvrrltpsc eitfieseegsgrgaalvsavackkacmlgq
>1v4tA (A:) mveqilaefqlqeedlkkvmrrmqkemdrglrletheeasvkmlptyvrstpegsevgdf lsldlggtnfrvmlvkvgegeegqwsvktkhqmysipedamtgtaemlfdyisecisdfl dkhqmkhkklplgftfsfpvrhnvvgllrdaikrrgdfemdvvamvndtvatmiscyyed hqcevgmivgtgcnacymeemqnvelvegdegrmcvntewgafgdsgeldeflleydrlv dessanpgqqlyekliggkymgelvrlvllrlvdenllfhgeaseqlrtrgafetrfvsq vesdtgdrkqiynilstlglrpsttdcdivrracesvstraahmcsaglagvinrmresr sedvmritvgvdgsvyklhpsfkerfhasvrrltpsceitfieseegsgrgaalvsavac kkac