Table 1.
Characteristics of PL-6 alginate lyases.
| Alginate lyase | Source | Temperaturea | pHb | Metal ionsc | Action mode | Substrate Specificity | Degradation products | Reference |
|---|---|---|---|---|---|---|---|---|
| AlyPL6 | Pedobacter hainanensis NJ-02 | 45 °C, 35 °C (1 h) | 10.0, 9.0–10.0 (12 h) | Na+ (1 mM) | Endo- | Sodium alginate > polyG > polyM | 2–6 | (Q. Li et al., 2020) |
| OUC-ScCD6 | Streptomyces ecolicolor A3(2) | 50 °C, 30 °C (1 h) | 9.0, 7.0–10.0 (4 d) | Mn2+, Fe3+, Zn2+, Ba2+, Co2+ (1 mM) | Endo- | PolyM > sodium alginate > polyG | 2–4 | Cheng et al. (2020) |
| FsAlyPL6 | Flammeovirga sp. NJ-04 | 45 °C, 35 °C (1 h) | 9.0, 9.0–10.0 (20 h) | Na+, Ca2+ and Mg2+ (1 mM) | Endo- | Sodium alginate > polyM > polyG | 1–5 | (Q. Li et al., 2019) |
| BcelPL6 | Bacteroides cellulosilyticus CRE21 | 30 °C, N.D. d | 7.5, N.D. | N.D. | Endo- | Sodium alginate > polyM, polyG not detected | 2 | Stender et al. (2019) |
| AlyF | Vibrio splendidus OU02 | 30 °C, N.D. | 7.5, N.D. | Na+ (0.2 M) | Endo- | PolyG > sodium alginate, polyM not detected | 3 | Lyu et al. (2019) |
| AlyGC | Glaciecola chathamensis S18K6T | 30 °C, N.D. | 7.0, N.D. | N.D. | Exo- | PolyG > polyM > sodium alginate | 1 | (F. Xu et al., 2017) |
| OalS6 | Shewanella sp.Kz7 | 40 °C, 0–40 °C (1 h) | 7.2, 6.0–8.0 (24 h) | Na+ (1–300 Mm), K+(1–100 mM) | Exo- | PolyG > sodium alginate > polyM | 1 | (S. Li et al., 2015) |
| AlyMG | Stenotrophomas maltophilia KJ-2 | 40 °C, N.D. | 8.0, N.D. | Na+, K+ (1–100 Mm) and Ca2+ (1 mM) | Endo- | PolyMG > alginate > polyM > polyG | 2–6 | In Lee, Choi, Lee, & Kim (2012) |
| OalC6 | Cellulophaga sp.SY116 | 40 °C, 0–30 °C (1 h) | 6.6, 6.0–8.0 (6 h) | Na+ (1–500 Mm), K+ and Ca2+ (1 mM) | Exo- | PolyG > sodium alginate > polyM | 1 | (S. Li et al., 2018) |
| ALY | Pseudomonas sp.OS-ALG-9 | N.D. | N.D. | N.D. | Endo- | PolyM > polyG | N.D. | Kraiwattanapong et al. (1997) |
| Alg823 | Pseudoalteromonas carrageenovora ASY5 | 55 °C, 35–45 °C (0.5 h) | 8.0, 6.0–10.0 (24 h) | Ca2+, Mg2+, K+ and Na+ (1 mM) | Endo- | PolyM > polyG > sodium alginate | 2–3 | Zeng et al. (2019) |
| AlyRm1 | Rubrivirga marina | 30 °C, 20 °C (1 h) | 10.0, 6.0–10.0 (24 h) | Cu2+ and K+ (1 mM) | Endo- | PolyM > sodium alginate > polyG | 1–5 | This study |
a
The optimal temperature, the range of temperature within which the residual activity of alginate lyase was over 80% after incubated for a certain time (the incubation time).
b
The optimal pH, the range of pH within which the residual activity of alginate lyase was over 80% after incubated for a certain time (the incubation time).
c
Those metal ions increased the enzyme activity under a certain concentration (the concentration).
d
Not determined.