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. 2022 Sep 29;12(10):1388. doi: 10.3390/biom12101388

Figure 4.

Figure 4

A structure comparison of PW-pGH28-3 and two typical pectinolytic enzymes of Tm_ExoPG and Ec_EndoPG. (A) The predicted structure of PW-pGH28-3. The right-handed parallel β-helix fold is marked with light-grey, and several turns and loops lining the active site cleft are marked with red. (B) The structure of Tm_ExoPG. The right-handed parallel β-helix fold is marked with light-cyan, and several turns and loops lining the active site cleft are marked with green. (C) Superimposition of the predicted PW-pGH28-3 and Tm_ExoPG. (D) The surface structure of PW-pGH28-3. (E) The surface structure of Tm_ExoPG. (F) The surface structure of Ec_EndoPG, which is marked in light-pink. Eight conserved residues in the active site of these three pectinolytic enzymes are all marked in yellow.