Chains and heterogens:
PDB Chain Sequences:
>3sr7A (A:) mgsshhhhhhssglvprgshmasmtggqqmgrgsmtnrkddhikyaldyrspynsfddie lihhslpdydlaeidlsthfagqdfdfpfyinamtggsqkgkevneklaqvadtcgllfv tgsystalknpddtsyqvkksrphlllatnigldkpyqaglqavrdlqplflqvhinlmq ellmpegerefrswkkhlsdyakklqlpfilkevgfgmdvktiqtaidlgvktvdisgrg gtsfayienrrggnrsylnqwgqttaqvllnaqplmdkveilasggirhpldiikalvlg akavglsrtmlelveqhsvheviaivngwkedlrlimcalncqtiaelrnvdyllygrlr egqrq
>3sr7A (A:) pynsfddielihhslpdydlaeidlsthfagqdfdfpfyinamqkgkevneklaqvadtc gllfvtlllatnigldkpyqaglqavrdlqplflqvhinlmqellmpegerefrswkkhl sdyakklqlpfilkevgfgmdvktiqtaidlgvktvdisgrgrsylnqwgqttaqvllna qplmdkveilasggirhpldiikalvlgakavglsrtmlelveqhsvheviaivngwked lrlimcalncqtiaelrnvdyllygrlregqrq
>3sr7B (B:) mgsshhhhhhssglvprgshmasmtggqqmgrgsmtnrkddhikyaldyrspynsfddie lihhslpdydlaeidlsthfagqdfdfpfyinamtggsqkgkevneklaqvadtcgllfv tgsystalknpddtsyqvkksrphlllatnigldkpyqaglqavrdlqplflqvhinlmq ellmpegerefrswkkhlsdyakklqlpfilkevgfgmdvktiqtaidlgvktvdisgrg gtsfayienrrggnrsylnqwgqttaqvllnaqplmdkveilasggirhpldiikalvlg akavglsrtmlelveqhsvheviaivngwkedlrlimcalncqtiaelrnvdyllygrlr egqrq
>3sr7B (B:) ynsfddielihhslpdydlaeidlsthfagqdfdfpfyinamgkevneklaqvadtcgll fvtphlllatnigldkpyqaglqavrdlqplflqvhinlmqelrswkkhlsdyakklqlp filkevgfgmdvktiqtaidlgvktvdisgrrsylnqwgqttaqvllnaqplmdkveila sggirhpldiikalvlgakavglsrtmlelveqhsvheviaivngwkedlrlimcalncq tiaelrnvdyllygrlregqrq
>3sr7C (C:) mgsshhhhhhssglvprgshmasmtggqqmgrgsmtnrkddhikyaldyrspynsfddie lihhslpdydlaeidlsthfagqdfdfpfyinamtggsqkgkevneklaqvadtcgllfv tgsystalknpddtsyqvkksrphlllatnigldkpyqaglqavrdlqplflqvhinlmq ellmpegerefrswkkhlsdyakklqlpfilkevgfgmdvktiqtaidlgvktvdisgrg gtsfayienrrggnrsylnqwgqttaqvllnaqplmdkveilasggirhpldiikalvlg akavglsrtmlelveqhsvheviaivngwkedlrlimcalncqtiaelrnvdyllygrlr egqrq
>3sr7C (C:) ynsfddielihhslpdydlaeidlsthfagqdfdfpfyinqkgkevneklaqvadtcgll fvrphlllatnigldkpyqaglqavrdlqplflqvhinlmqellmpegerefrswkkhls dyakklqlpfilkevgfgmdvktiqtaidlgvktvdisgrgrsylnqwgqttaqvllnaq plmdkveilasggirhpldiikalvlgakavglsrtmlelveqhsvheviaivngwkedl rlimcalncqtiaelrnvdyllygrlregqrq
>3sr7D (D:) mgsshhhhhhssglvprgshmasmtggqqmgrgsmtnrkddhikyaldyrspynsfddie lihhslpdydlaeidlsthfagqdfdfpfyinamtggsqkgkevneklaqvadtcgllfv tgsystalknpddtsyqvkksrphlllatnigldkpyqaglqavrdlqplflqvhinlmq ellmpegerefrswkkhlsdyakklqlpfilkevgfgmdvktiqtaidlgvktvdisgrg gtsfayienrrggnrsylnqwgqttaqvllnaqplmdkveilasggirhpldiikalvlg akavglsrtmlelveqhsvheviaivngwkedlrlimcalncqtiaelrnvdyllygrlr egqrq
>3sr7D (D:) ynsfddielihhslpdydlaeidlsthfagqdfdfpfyinakevneklaqvadtcgllfv trphlllatnigldkpyqaglqavrdlqplflqvhinlmqellmpegerefrswkkhlsd yakklqlpfilkevgfgmdvktiqtaidlgvktvdisgrgrsylnqwgqttaqvllnaqp lmdkveilasggirhpldiikalvlgakavglsrtmlelveqhsvheviaivngwkedlr limcalncqtiaelrnvdyllygrlregqrq