Sequence alignment between 1vf5(B) and UniProt seq P83792 (PETD_MASLA):

P83792 (PETD_MASLA): Cytochrome b6-f complex subunit 4 from Mastigocladus laminosus
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         ---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+
UniProt: MATLKKPDLSDPKLRAKLAKGMGHNYYGEPAWPNDLLYVFPVVIMGTFACIVALSVLDPAMVGEPADPFATPLEILPEWYLYPVFQILRSVPNKLLGVLLMASVPLGLILVPFIENVNKFQNPFRRPVATTIFLFGTLVTIWLGIGATFPLDKTLTLGLF
         ..................................................................X.......................X........................................................XX...........
PDB seq: -----------------LAKGMGHNYYGEPAWPNDLLYVFPVVIMGTFACIVALSVLDPAMVGEPANPFATPLEILPEWYLYPVFQILRSLPNKLLGVLLMASVPLGLILVPFIENVNKFQNPFRRPVATTIFLFGTLVTIWLGIGAALPLDKTL-----
                          --+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+-----     
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