Sequence alignment between 4pv1(G) and UniProt seq P83797 (PETG_MASLA):

P83797 (PETG_MASLA): Cytochrome b6-f complex subunit 5 from Mastigocladus laminosus 
                 10        20        30       
         ---------+---------+---------+-------
UniProt: MVEPLLDGLVLGLVFATLGGLFYAAYQQYKRPNELGG
PDB seq: MVEPLLDGLVLGLVFATLGGLFYAAYQQYKRPNELGG
         ---------+---------+---------+-------
                 10        20        30