Chains and heterogens:
PDB Chain Sequences:
>1tl9A (A:) mglgrhenaikylgqdyenlrarclqngvlfqddafppvshslgfkelgpnssktygikw krptellsnpqfivdgatrtdicqgalgdcwllaaiasltlnetilhrvvpygqsfqegy agifhfqlwqfgewvdvvvddllptkdgklvfvhsaqgnefwsallekayakvngsyeal sggctseafedftggvtewydlqkapsdlyqiilkalergsllgcsinisdirdleaitf knlvrghaysvtdakqvtyqgqrvnlirmrnpwgevewkgpwsdnsyewnkvdpyereql rvkmedgefwmsfrdfireftkleicnltpdlehhhhhh
>1tl9A (A:) naikylgqdyenlrarclqngvlfqddafppvshslgfkelgpnssktygikwkrptell snpqfivdgatrtdicqgalgdcwllaaiasltlnetilhrvvpygqsfqegyagifhfq lwqfgewvdvvvddllptkdgklvfvhsaqgnefwsallekayakvngsyealsggctse afedftggvtewydlqkapsdlyqiilkalergsllgcsinisdirdleaitfknlvrgh aysvtdakqvtyqgqrvnlirmrnpwgevewkgpwsdnsyewnkvdpyereqlrvkmedg efwmsfrdfireftkleicnl