Chains and heterogens:
PDB Chain Sequences:
>4v38A (A:) sktitiyldhaslptlnqlmhftkesedketarifgfsrfklpekiteqynnihfveikn nrptediftildqypekleldlhlniahsiqlfhpilqyrfkhpdrisikslnlyddgtm eyvdlekeenkdiksaikkaekqlsdylltgkinfdnptlaryvwqsqypvkyhflstey fekaeflqplktylagkyqkmdwsayeklspeqqtfylklvgfsdetkqlfhteqtkfif tgtttwegntdireyyakqqlnllkhfthsegdlfigdqykiyfkghprggdindyilkh akditnipanisfeilmmtgllpdkvggvasslyfslpkekishiiftsnkkiknkedal ndpyvrvmlrlgmidksqiifwdslkql