Chains and heterogens:
PDB Chain Sequences:
>1n3wA (A:) kieegklviwingdkgynglaevgkkfekdtgikvtvehpdkleekfpqvaatgdgpdii fwahdrfggyaqsgllaeitpdkafqdklypftwdavryngkliaypiavealsliynkd llpnppktweeipaldkelkakgksalmfnlqepyftwpliaadggyafkygdikdvgvd nagakagltflvdliknkhmnadtdysiaeaafnkgetamtingpwawsnidtskvnygv tvlptfkgqpskpfvgvlsaginaaspnkelakeflenylltdegleavnkdkplgaval ksyeeelakdpriaatmenaqkgeimpnipqmsafwyavrtavinaasgrqtvdealkda qtritk