Chains and heterogens:
PDB Chain Sequences:
>1svbA (A:) srcthlenrdfvtgtqgttrvtlvlelggcvtitaegkpsmdvwldaiyqenpaktreyc lhaklsdtkvaarcptmgpatlaeehqggtvckrdqsdrgwgnhcglfgkgsivacvkaa ceakkkatghvydankivytvkvephtgdyvaanethsgrktasftissektiltmgeyg dvsllcrvasgvdlaqtvileldktvehlptawqvhrdwfndlalpwkhegaqnwnnaer lvefgaphavkmdvynlgdqtgvllkalagvpvahiegtkyhlksghvtcevgleklkmk gltytmcdktkftwkraptdsghdtvvmevtfsgtkpcripvravahgspdvnvamlitp nptienngggfiemqlppgdniiyvgelshqwfqk