Skip to main content
. 2021 Sep 28;9:748976. doi: 10.3389/fbioe.2021.748976

FIGURE 3.

FIGURE 3

Genetic engineering strategies for the regulation of ɛ-PL production and molecular weight and in ɛ-PL-producing Streptomyces and endophytic fungi (Hamano et al., 2007; Takehara et al., 2008; Yamanaka et al., 2010; Xia et al., 2013; Hamano et al., 2014; Xu et al., 2015a; Xu T. et al., 2018; Liu et al., 2019a; Pan et al., 2019a; Xu et al., 2019; Purev et al., 2020; Wang A. et al., 2020; Yamanaka et al., 2020; Li et al., 2021). AmtB, ammonium transporter; MprA/B and PepD, a signal transduction system; GA3P, glyceratldehyde-3-phosphate; DHAP, dihydroxy acetone phosphate; L-DAB, L-diaminobutanoic acid; γ-PAB, γ -poly-L-diaminobutanoic acid; PDAP, poly-L-diaminopropionic acid; AspSAld, L-Asparte-Semialdehyde; THPA, Hydroxy-tetrahydrodipicolinate; Suc-DAP, Succinyl-diaminoheptanedioate; L-DAP, L-diaminoheptanedioate; ɛ-PL, ε-poly-L-lysine.