Chains and heterogens:
PDB Chain Sequences:
>3zi7A (A:) masdkfpvaenpsssfkyesavqyrpapdsylnpcpqagrivketytgingtkslnvylp ygydpnkkynifylmhgggenentifsndvklqnildhaimngeleplivvtptfnggnc taqnfyqefrqnvipfveskystyaesttpqgiaasrmhrgfggfsmgglttwyvmvncl dyvayfmplsgdywygnspqdkansiaeainrsglskreyfvfaatgsediayanmnpqi eamkalphfdytsdfskgnfyflvapgathwwgyvrhyiydalpyffhelehhhhhh
>3zi7A (A:) sfkyesavqyrpapdsylnpcpqagrivketytgingtkslnvylpygydpnkkynifyl mhgggenentifsndvklqnildhaimngeleplivvtptfnggnctaqnfyqefrqnvi pfveskystyaesttpqgiaasrmhrgfggfsmgglttwyvmvncldyvayfmplsgdyw ygnspqdkansiaeainrsglskreyfvfaatgsediayanmnpqieamkalphfdytsd fskgnfyflvapgathwwgyvrhyiydalpyffhelehhhhhh
>3zi7B (B:) masdkfpvaenpsssfkyesavqyrpapdsylnpcpqagrivketytgingtkslnvylp ygydpnkkynifylmhgggenentifsndvklqnildhaimngeleplivvtptfnggnc taqnfyqefrqnvipfveskystyaesttpqgiaasrmhrgfggfsmgglttwyvmvncl dyvayfmplsgdywygnspqdkansiaeainrsglskreyfvfaatgsediayanmnpqi eamkalphfdytsdfskgnfyflvapgathwwgyvrhyiydalpyffhelehhhhhh
>3zi7B (B:) sfkyesavqyrpapdsylnpcpqagrivketytgingtkslnvylpygydpnkkynifyl mhgggenentifsndvklqnildhaimngeleplivvtptfnggnctaqnfyqefrqnvi pfveskystyaesttpqgiaasrmhrgfggfsmgglttwyvmvncldyvayfmplsgdyw ygnspqdkansiaeainrsglskreyfvfaatgsediayanmnpqieamkalphfdytsd fskgnfyflvapgathwwgyvrhyiydalpyffhelehhhhhh