Chains and heterogens:
PDB Chain Sequences:
>1sm2A (A:) vidpseltfvqeigsgqfglvhlgywlnkdkvaiktiregamseedfieeaevmmklshp klvqlygvcleqapiclvfefmehgclsdylrtqrglfaaetllgmcldvcegmayleea cvihrdlaarnclvgenqvikvsdfgmtrfvlddqytsstgtkfpvkwaspevfsfsrys sksdvwsfgvlmwevfsegkipyenrsnsevvedistgfrlykprlasthvyqimnhcwk erpedrpafsrllrqlaeiaesgl
>1sm2A (A:) vidpseltfvqeigsgqfglvhlgywlnkdkvaiktiregamseedfieeaevmmklshp klvqlygvcleqapiclvfefmehgclsdylrtqrglfaaetllgmcldvcegmayleea cvihrdlaarnclvgenqvikvsdfgpvkwaspevfsfsryssksdvwsfgvlmwevfse gkipyenrsnsevvedistgfrlykprlasthvyqimnhcwkerpedrpafsrllrqlae iaesg
>1sm2B (B:) vidpseltfvqeigsgqfglvhlgywlnkdkvaiktiregamseedfieeaevmmklshp klvqlygvcleqapiclvfefmehgclsdylrtqrglfaaetllgmcldvcegmayleea cvihrdlaarnclvgenqvikvsdfgmtrfvlddqytsstgtkfpvkwaspevfsfsrys sksdvwsfgvlmwevfsegkipyenrsnsevvedistgfrlykprlasthvyqimnhcwk erpedrpafsrllrqlaeiaesgl
>1sm2B (B:) idpseltfvqeigsgqfglvhlgywlnkdkvaiktiregamseedfieeaevmmklshpk lvqlygvcleqapiclvfefmehgclsdylrtqrglfaaetllgmcldvcegmayleeac vihrdlaarnclvgenqvikvsdfpvkwaspevfsfsryssksdvwsfgvlmwevfsegk ipyenrsnsevvedistgfrlykprlasthvyqimnhcwkerpedrpafsrllrqlaeia e