From: Metabolic engineering of Corynebacterium glutamicum for producing branched chain amino acids
Host | Overexpression genes | Knockout genes | Titer of BCAAs (shake flask) (g/L) | Titer of BCAAs (fed batch) (g/L) | Productivity (g/(L × h)) | Yield (g/g glucose) | Substrate | References |
---|---|---|---|---|---|---|---|---|
C. glutamicum R | ilvBNG156E, ilvCS34G/L48E/R49F, ilvD, leuDH | ΔldhA | l-Valine: 227 | 7.17 | 0.410 | Glucose | [52] | |
C. glutamicum R JCM 18229 | ilvBNG156E, ilvCS34G/L48E/R49F, ilvD, leuDH, gapA, pyk, pfk, pgi, tpi | ΔldhA, Δppc, Δpta, ΔackA, ΔctfA, ΔavtA | l-Valine: 150 | 0.573 | Glucose | [53] | ||
C. glutamicum ATCC13032 | ilvN G20D/I21D/I22F, replacing ilvD promoter with P-ilvDM7, replacing ilvE promoter with P-ilvEM6 | ΔpanB, replacing ilvA promoter with P-ilvAM1CG | l-Valine: 15.9 | Glucose | [51] | |||
C. glutamicum ATCC13032 | ilvBNC, ilvD | ΔilvA, ΔpanBC | l-Valine: 10.7 | Glucose | [49] | |||
C. glutamicum YILW | brnFE | ΔbrnQ | l-Isoleucine: 29.0 | Glucose | [54] | |||
C. glutamicum IWJ001 | gnd, fbp, pgl | l-Isoleucine: 10.9 | l-Isoleucine: 29.0 | 0.345 | 0.138 | Glucose | [55] | |
C. glutamicum WM001 | phaCAB | l-Isoleucine: 9.58 | l-Isoleucine: 29.8 | 0.129 | Glucose | [56] | ||
C. glutamicum JHI3-156 | lrp, brnFE | l-Isoleucine: 3.49 | l-Isoleucine: 26.9 | 0.374 | 0.122 | Glucose | [57] | |
C. glutamicum MH20-22B | ilvA V323A, hom G378E, introducing the ilvA-con promoter mutation, replacing hom promoter with PcspB |
Introducing the PdapA-C13 promoter mutation | l-Isoleucine: 6.95 | l-Isoleucine: 14.3 | 0.184 | 0.137 | Glucose | [58] |
C. glutamicum JHI3-156 | zwf, ppnK | l-Isoleucine: 4.10 | 0.057 | 0.072 | Glucose | [59] | ||
C. glutamicum ATCC13869 | lysC, hom, thrB, ilvA | Δddh | l-Isoleucine: 3.81 | Glucose | [60] | |||
C. glutamicum YILW | ΔalaT | l-Isoleucine: 2.09 | l-Isoleucine: 15.4 | 0.136 | Glucose | [61] | ||
C. glutamicum XQ-9 | leuA, ilvBN, leuDH, ilvCS34G/L48E/R49F, rocG | ΔltbR, ΔilvE, Δgdh | l-Leucine: 23.3 | 0.191 | Glucose | [62] | ||
C. glutamicum FA-1 | aspB | ΔilvE | l-Leucine: 20.8 | Glucose | [63] |