Chains and heterogens:
PDB Chain Sequences:
>1i44A (A:) vfpssvfvpdewevsrekitllrelgqgsfgmvyegnardiikgeaetrvavktvnesas lrerieflneasvmkgftchhvvrllgvvskgqptlvvmelmahgdlksylrslrpeaen npgrppptlqemiqmaaeiadgmaylnakkfvhrdlaarncmvahdftvkigdfgmtrdi yetayyrkggkgllpvrwmapeslkdgvfttssdmwsfgvvlweitslaeqpyqglsneq vlkfvmdggyldqpdncpervtdlmrmcwqfnpkmrptfleivnllkddlhpsfpevsff hseenk
>1i44A (A:) pdewevsrekitllrelgqgsfgmvyegnardiikgeaetrvavktvnesaslreriefl neasvmkgftchhvvrllgvvskgqptlvvmelmahgdlksylrslrpeaennpgrpppt lqemiqmaaeiadgmaylnakkfvhrdlaarncmvahdftvkigdfgmtlpvrwmapesl kdgvfttssdmwsfgvvlweitslaeqpyqglsneqvlkfvmdggyldqpdncpervtdl mrmcwqfnpkmrptfleivnllkddlhpsfpevsffhseenk