Chains and heterogens:
PDB Chain Sequences:
>1a7lA (A:) egklviwingdkgynglaevgkkfekdtgikvtvehpdkleekfpqvaatgdgpdiifwa hdrfggyaqsgllaeitpdkafqdklypftwdavryngkliaypiavealsliynkdllp nppktweeipaldkelkakgksalmfnlqepyftwpliaadggyafkyengkydikdvgv dnagakagltflvdliknkhmnadtdysiaeaafnkgetamtingpwawsnidtskvnyg vtvlptfkgqpskpfvgvlsaginaaspnkelakeflenylltdegleavnkdkplgava lksyeeelakdpriaatmenaqkgeimpnipqmsafwyavrtavinaasgrqtvdealkd gsqdprvrglyfpaggsecc
>1a7lB (B:) egklviwingdkgynglaevgkkfekdtgikvtvehpdkleekfpqvaatgdgpdiifwa hdrfggyaqsgllaeitpdkafqdklypftwdavryngkliaypiavealsliynkdllp nppktweeipaldkelkakgksalmfnlqepyftwpliaadggyafkyengkydikdvgv dnagakagltflvdliknkhmnadtdysiaeaafnkgetamtingpwawsnidtskvnyg vtvlptfkgqpskpfvgvlsaginaaspnkelakeflenylltdegleavnkdkplgava lksyeeelakdpriaatmenaqkgeimpnipqmsafwyavrtavinaasgrqtvdealkd gsqdprvrglyf
>1a7lC (C:) egklviwingdkgynglaevgkkfekdtgikvtvehpdkleekfpqvaatgdgpdiifwa hdrfggyaqsgllaeitpdkafqdklypftwdavryngkliaypiavealsliynkdllp nppktweeipaldkelkakgksalmfnlqepyftwpliaadggyafkyengkydikdvgv dnagakagltflvdliknkhmnadtdysiaeaafnkgetamtingpwawsnidtskvnyg vtvlptfkgqpskpfvgvlsaginaaspnkelakeflenylltdegleavnkdkplgava lksyeeelakdpriaatmenaqkgeimpnipqmsafwyavrtavinaasgrqtvdealkd gs