Chains and heterogens:
PDB Chain Sequences:
>4fkzA (A:) mkklkvmtvfgtrpeaikmaplvlelkkypeidsyvtvtaqhrqmldqvldafhikpdfd lnimkerqtlaeitsnalvrldelfkdikpdivlvhgdttttfagslaafyhqiavghve aglrtgnkyspfpeelnrqmtgaiadlhfaptgqakdnllkenkkadsifvtgntaidal nttvrdgyshpvldqvgedkmilltahrrenlgepmenmfkairrivgefedvqvvypvh lnpvvreaahkhfgdsdrvhlieplevidfhnfaakshfiltdsggvqeeapslgkpvlv lrdtterpegveagtlklagtdeeniyqlakqlltdpdeykkmsqasnpygdgeasrriv eellfhygyrkeqpdsftgklehhhhhh
>4fkzA (A:) kklkvmtvfgtrpeaikmaplvlelkkypeidsyvtvtaqhrqmldqvldafhikpdfdl nimkerqtlaeitsnalvrldelfkdikpdivlvhgdttttfagslaafyhqiavghvea glrtgnkyspfpeelnrqmtgaiadlhfaptgqakdnllkenkkadsifvtgntaidaln ttvrdgyshpvldqvgedkmilltahrrenlgepmenmfkairrivgefedvqvvypvhl npvvreaahkhfgdsdrvhlieplevidfhnfaakshfiltdsggvqeeapslgkpvlvl rdtterpegveagtlklagtdeeniyqlakqlltdpdeykkmsqasnpygdgeasrrive ellfhygyrkeqpdsftgklehhh
>4fkzB (B:) mkklkvmtvfgtrpeaikmaplvlelkkypeidsyvtvtaqhrqmldqvldafhikpdfd lnimkerqtlaeitsnalvrldelfkdikpdivlvhgdttttfagslaafyhqiavghve aglrtgnkyspfpeelnrqmtgaiadlhfaptgqakdnllkenkkadsifvtgntaidal nttvrdgyshpvldqvgedkmilltahrrenlgepmenmfkairrivgefedvqvvypvh lnpvvreaahkhfgdsdrvhlieplevidfhnfaakshfiltdsggvqeeapslgkpvlv lrdtterpegveagtlklagtdeeniyqlakqlltdpdeykkmsqasnpygdgeasrriv eellfhygyrkeqpdsftgklehhhhhh
>4fkzB (B:) kklkvmtvfgtrpeaikmaplvlelkkypeidsyvtvtaqhrqmldqvldafhikpdfdl nimkerqtlaeitsnalvrldelfkdikpdivlvhgdttttfagslaafyhqiavghvea glrtgnkyspfpeelnrqmtgaiadlhfaptgqakdnllkenkkadsifvtgntaidaln ttvrdgyshpvldqvgedkmilltahrrenlgepmenmfkairrivgefedvqvvypvhl npvvreaahkhfgdsdrvhlieplevidfhnfaakshfiltdsggvqeeapslgkpvlvl rdtterpegveagtlklagtdeeniyqlakqlltdpdeykkmsqasnpygdgeasrrive ellfhygyrkeqpdsf