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. 2021 Aug 11;87(17):e00368-21. doi: 10.1128/AEM.00368-21

TABLE 3.

Characteristics of Pseudoalteromonas alginate lyases^a

Strain	Isolation site	Protein name	Extra- or intracellular	Family	Substrate specificity	Action mode	Main products (DP)^b	Optimal T_m (°C)^b	Optimal pH	Ions positive for salt activation^c	Reference
Pseudoalteromonas carrageenovora ASY5	Mangrove soil	Aly1281	Extra	PL7	Bifunctional	Endotype	2	50	8.0	Na⁺, K⁺	39
Pseudoalteromonas carrageenovora ASY5	Mangrove soil	Alg823	Extra	PL6	Bifunctional	Endotype	2–3	55	8.0	Na⁺, K⁺	40
Pseudoalteromonas sp. SM0524	Marine rotten kelp	AlyPM	Extra	PL7	Poly(M)	Endotype	2–3	30	8.5	Na⁺	16
Pseudoalteromonas sp. SM0524	Marine rotten kelp	aly-SJ02	Extra	PL18	Bifunctional	Endotype	2–3	50	8.5	Na⁺, K⁺, Mg²⁺, Ca²⁺, Co²⁺, Ba²⁺, Ni²⁺, Sr²⁺	25
Pseudoalteromonas citrea KMM 3297	Coelomic liquid of the holothurian	AlI	Intra	—	Bifunctional	Endotype	3–5	35	—	Na⁺, Mg²⁺	29
		AlII	Intra	—	—	Endotype	>3	45	—	Na⁺, Mg²⁺	29
		AlIII	Intra	—	Bifunctional	Endotype	>3	45	—	Na⁺, Mg²⁺	29
Pseudoalteromonas sp. strain CY24	Seawater of Jiaozhou Bay of China	AlyPI	Extra	PL7	Bifunctional	Endotype	—	40	7.0	Na⁺, K⁺, Mn²⁺, Ca²⁺, Fe³⁺	17
Pseudoalteromonas atlantica AR06	Coastal water in Japan	AlyA	Extra	PL18	Bifunctional	Endotype	2–4	—	—	—	37
Pseudoalteromonas elyakovii IAM 14594	A decaying thallus of Laminaria -	alyPEEC	Extra	PL18	Bifunctional	Endotype	>4	30	7.0	Na⁺, K⁺, Mg²⁺, Ca²⁺, Ba²⁺, Mn²⁺	38
Pseudoalteromonas sp. 272	Sea mud in Omura bay	—	Extra	PL18	Bifunctional	Endotype	—	25	7.5–8.0	None	94
Pseudoalteromonas sp. strain 1786	Intestinal contents of an arthropod	—	Extra	—	Bifunctional	Endotype	2–4	50	7.1–7.7	Mg²⁺, Ca²⁺	95

^a

—, not mentioned.

^b

DP, degree of polymerization; T_m, melting temperature.

^c

We only showed the ions that activated the enzyme activity.