Chains and heterogens:
PDB Chain Sequences:
>1eceA (A:) agggywhtsgreildannvpvriaginwfgfetcnyvvhglwsrdyrsmldqikslgynt irlpysddilkpgtmpnsinfyqmnqdlqgltslqvmdkivayagqiglriildrhrpdc sgqsalwytssvseatwisdlqalaqrykgnptvvgfdlhnephdpacwgcgdpsidwrl aaeragnavlsvnpnllifvegvqsyngdsywwggnlqgagqypvvlnvpnrlvysahdy atsvypqtwfsdptfpnnmpgiwnknwgylfnqniapvwlgefgttlqsttdqtwlktlv qylrptaqygadsfqwtfwswnpdsgdtggilkddwqtvdtvkdgylapikssifdpv
>1eceB (B:) agggywhtsgreildannvpvriaginwfgfetcnyvvhglwsrdyrsmldqikslgynt irlpysddilkpgtmpnsinfyqmnqdlqgltslqvmdkivayagqiglriildrhrpdc sgqsalwytssvseatwisdlqalaqrykgnptvvgfdlhnephdpacwgcgdpsidwrl aaeragnavlsvnpnllifvegvqsyngdsywwggnlqgagqypvvlnvpnrlvysahdy atsvypqtwfsdptfpnnmpgiwnknwgylfnqniapvwlgefgttlqsttdqtwlktlv qylrptaqygadsfqwtfwswnpdsgdtggilkddwqtvdtvkdgylapikssifdpv