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Our customer service representatives are available 24 hours, Monday through Friday to assist you.| Introduction | Beta-lactamase is a type of enzyme (EC 3.5.2.6) produced by some bacteria that is responsible for their resistance to beta-lactam antibiotics like penicillins, cephalosporins, cephamycins and carbapenems. These antibiotics have a common element in their molecular structure: a four-atom ring known as a beta-lactam. The lactamase enzyme breaks that ring open, deactivating the molecule''s antibacterial properties. | 
| Synonyms | Beta-lactamase, Cephalosporinase, ampC, ampA, b4150, JW4111. | 
| Source | Escherichia Coli. | 
| Physical Appearance | Sterile Filtered colorless solution. | 
| Formulation | The LACTB enzyme (1 mg/ml) is supplied in 20mM Tris-HCl buffer (pH8.0) and 10% glycerol. | 
| Stability | LACTB althoµgh stable at 4°C for 1 week, should be stored desiccated below -18°C. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).Please prevent freeze-thaw cycles. | 
| Amino Acid Sequence | MGSSHHHHHH SSGLVPRGSH MAPQQINDIV HRTITPLIEQ QKIPGMAVAV IYQGKPYYFT WGYADIAKKQ PVTQQTLFEL GSVSKTFTGV LGGDAIARGE IKLSDPTTKY WPELTAKQWN GITLLHLATY TAGGLPLQVP DEVKSSSDLL RFYQNWQPAW APGTQRLYAN SSIGLFGALA VKPSGLSFEQ AMQTRVFQPL KLNHTWINVP PAEEKNYAWG YREGKAVHVS PG  | 
| Purity | Greater than 95.0% as determined by SDS-PAGE. | 
| Usage | NeoBiolab's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drµgs, agricultural or pesticidal products, food additives or household chemicals. | 
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