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Literature summary for 3.2.1.17 extracted from

  • Thammasirirak, S.; Ponkham, P.; Preecharram, S.; Khanchanuan, R.; Phonyothee, P.; Daduang, S.; Srisomsap, C.; Araki, T.; Svasti, J.
    Purification, characterization and comparison of reptile lysozymes (2006), Comp. Biochem. Physiol. C, 143, 209-217.
    View publication on PubMed

Organism

Organism UniProt Comment Textmining
Amyda cartilaginea
-
-
-
Chelonia mydas
-
-
-
Pelodiscus sinensis
-
-
-

Purification (Commentary)

Purification (Comment) Organism
-
Chelonia mydas
-
Amyda cartilaginea
isoenzyme SSTL A Pelodiscus sinensis
isoenzyme SSTL B Pelodiscus sinensis

Source Tissue

Source Tissue Comment Organism Textmining
egg white
-
Pelodiscus sinensis
-
egg white
-
Chelonia mydas
-
egg white
-
Amyda cartilaginea
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
additional information
-
58 units per mg. One unit is defined as the amount of enzyme causing a decrease of 0.1 absorbance unit at 540 nm in 3 min of reaction at 25°C Chelonia mydas
additional information
-
63 units per mg. One unit is defined as the amount of enzyme causing a decrease of 0.1 absorbance unit at 540 nm in 3 min of reaction at 25°C Amyda cartilaginea
additional information
-
isoenzyme SSTL A: 45 units per mg. One unit is defined as the amount of enzyme causing a decrease of 0.1 absorbance unit at 540 nm in 3 min of reaction at 25°C Pelodiscus sinensis
additional information
-
isoenzyme SSTL B: 85 units per mg. One unit is defined as the amount of enzyme causing a decrease of 0.1 absorbance unit at 540 nm in 3 min of reaction at 25°C Pelodiscus sinensis

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
peptidoglycan + H2O the enzyme form SSTL A shows lytic activity against several species of bacteria, such as Micrococcus luteus and Vibrio cholerae, but shows only weak activity to Pseudomonas aeruginosa and lacks activity towards Aeromonas hydrophila Pelodiscus sinensis ?
-
?
peptidoglycan + H2O the enzyme form SSTL B shows lytic activity against several species of bacteria, such as Micrococcus luteus and Vibrio cholerae, but shows only weak activity to Pseudomonas aeruginosa and lacks activity towards Aeromonas hydrophila Pelodiscus sinensis ?
-
?
peptidoglycan + H2O the enzyme shows lytic activity against several species of bacteria, such as Micrococcus luteus and Vibrio cholerae, but shows only weak activity to Pseudomonas aeruginosa and lacks activity towards Aeromonas hydrophila Chelonia mydas ?
-
?
peptidoglycan + H2O the enzyme shows lytic activity against several species of bacteria, such as Micrococcus luteus and Vibrio cholerae, but shows only weak activity to Pseudomonas aeruginosa and lacks activity towards Aeromonas hydrophila Amyda cartilaginea ?
-
?

Synonyms

Synonyms Comment Organism
ASTL
-
Amyda cartilaginea
GSTL
-
Chelonia mydas
SSTL A
-
Pelodiscus sinensis
SSTL B
-
Pelodiscus sinensis

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
90
-
60 min, about 60% loss of activity Chelonia mydas
90
-
180 min, about 35% loss of activity Amyda cartilaginea
90
-
3 h, about 45% loss of activity, isoenzyme SSTL A Pelodiscus sinensis
90
-
90 min, about 70% loss of activity, isoenzyme SSTL B Pelodiscus sinensis

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
6
-
dual pH-optimum at pH 6.0 and 8.0, ionic strength 0.1 Chelonia mydas
6
-
ionic strength 0.1 Amyda cartilaginea
6
-
isoenzyme SSTL A, ionic strength 0.1 Pelodiscus sinensis
6
-
isoenzyme SSTL B, ionic strength 0.1 Pelodiscus sinensis
8
-
dual pH-optimum at pH 6.0 and 8.0, ionic strength 0.1 Chelonia mydas

pH Range

pH Minimum pH Maximum Comment Organism
5 7 pH 5.0: about 45% of maximal activity, pH 7.0: about 75% of maximal activity, isoenzyme SSTL B, ionic strength 0.1 Pelodiscus sinensis
5 7 pH 5.0: about 50% of maximal activity, pH 7.0: about 90% of maximal activity, ionic strength 0.1 Amyda cartilaginea
5 7 pH 5.0: about 60% of maximal activity, pH 7.0: about 35% of maximal activity, isoenzyme SSTL A, ionic strength 0.1 Pelodiscus sinensis