溶葡球菌酶 来源于溶葡萄球菌

3.4.24.75 ( BRENDA | IUBMB )

MFCD00131556

Purified extracellular lysostaphin from S. staphylolyticus SAE0091 undergoes strict quality control testing to ensure the absence of detectable levels of contaminating DNA using 35 cycles PCR amplification of 16S and 18S rDNA using universal primer sets.
Lysostaphin is a zinc metalloenzyme isolated from a bacterial culture of Staphylococcus staphylolyticus. It has specific lytic action against other Staphylococcus species, including S. aureus.1,2 Lysostaphin has
hexosaminidase, amidase, and endopeptidase activities. It cleaves polyglycine crosslinks in the cellular wall which leads to cell lysis of Staphylococcus species, but not of other bacterial genera. [Pharmaceuticals 2010, 3(4), 1139-1161]
Lysostaphin is a single polypeptide chain of 246 amino acids, a molecular mass of 26,926 Da, isoelectric point of 9.5, (5) and an activity pH optimum of 7.5.(6)

Lysostaphin is a zinc endopeptidase with a molecular weight of approximately 25 kDa. Because lysostaphin cleaves the polyglycine cross-links in the peptidoglycan layer of the cell wall of Staphylococcus species it has been found useful for cell lysis and also as a potential anti-microbial therapeutic. pH Optimum for activity: ~7.5.
溶葡萄球菌素是一种分子量约为25 kDa的锌内肽酶。 由于溶葡萄球菌酶能裂解 葡萄球菌 类细胞壁肽聚糖层中的聚甘氨酸交联键，它已被发现可用于细胞裂解，并具有潜在的抗菌治疗作用。
活性最佳pH：~7.5

One unit will reduce the turbidity (A620) of a suspension of Staphylococcus aureus cells from 0.250 to 0.125 in 10 min at pH 7.5 at 37℃ in a 6.0 ml reaction mixture.

Supplied as a lyophilized powder containing 50–70% protein with the balance primarily as NaCl.

fermentation/recombinant

lyophilized powder

≥500 units/mg protein

27 kDa

DNA free

wet ice

−20℃

GHS08

Danger

H334

P261 - P284 - P304 + P340 + P312 - P501

Resp. Sens. 1

11 - Combustible Solids

WGK 3