β-lactamase
MDL:
MFCD00131819
Molecular Formula:
Molecular Weight:
Alias:
β-內酰胺酶 ;青霉素酶
Product order:
Name |
Specifications |
Packing |
Price |
Delivery |
β-lactamase |
1500萬單位 |
8×5ml |
RMB 880 |
Consulting service |
β-lactamase |
BR |
6×1mg |
RMB 242 |
Consulting service |
β-lactamase |
800萬單位 |
每盒8支 |
RMB 880 |
Consulting service |
β-lactamase |
BR |
6×1mg |
Inquiry |
Consulting service |
β-lactamase |
BR |
1mg |
RMB 83.6 |
Consulting service |
Character:
可水解β-內酰胺類抗生素。已發(fā)現(xiàn)二百多種β-內酰胺酶。青霉素酶的分類方法主要有兩種,分子生物學方法和BUSH法。 分子生物學法將酶分為四類。A類酶包括多種質粒編碼的青霉素酶,活性部位為絲氨酸殘基,分子量為29kDa。B類酶為金屬酶,由染色體或質粒編碼,酶活性需鋅離子參與,可被乙二胺四乙酸(EDTA)抑制。C類酶的活性部位為絲氨酸殘基,分子量為39kDa,其產生與誘導劑有關。C類酶主要指染色體編碼的頭孢菌素酶(AmpC酶)。D類酶又稱為OXA型(水解苯唑西林)β-內酰胺酶。 另一種分類方法為BUSH
Storage:
保存條件: 2-8℃
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