Chains and heterogens:
PDB Chain Sequences:
>1dvnA (A:) vhhppsyvahlasdfgvrvfqqvaqaskdrnvvfspygvasvlamlqlttggetqqqiqa amgfkiddkgmapalrhlykelmgpwnkdeisttdaifvqrdlklvqgfmphffrlfrst vkqvdfseverarfiindwvkthtkgmisnllgkgavdqltrlvlvnalyfngqwktpfp dssthrrlfhksdgstvsvpmmaqtnkfnytefttpdghyydilelpyhgdtlsmfiaap yekevplsaltnilsaqlishwkgnmtrlprllvlpkfsletevdlrkplenlgmtdmfr qfqadftslsdqeplhvaqalqkvkievnesgtvassstavivsarmapeeiimdrpflf vvrhnptgtvlfmgqvmep