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Beta-lactamase is a type of enzyme responsible for bacterial resistance to penicillin-type antibiotics. Penicillin and related antibiotics have a common element in their molecular structure, a four-atom ring known as a beta lactam (See ampicillin for an example of a penicillin structure). The lactamase enzyme breaks that ring open, deactivating the molecule's antibiotic properties.

The structure of a Streptomyces β lactamase is given by PDB 1BSG EC 3.5.2.6)

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Topics: Beta-lactamase, Beta lactam, Beta lactamase, Beta Decay...

BetaBeta can stand for: Β or β the 2nd letter of the Greek alphabet. See Beta (letter). Beta should not be confused with a similar-looking but unrelated letter in German language orthography, ss, which denotes a long "s" sound. The plant genus Beta	Beta-lactamBeta-lactam in a heteroatomic ring structure, consisting of three carbon atoms and one nitrogen atom (Fig. The beta-lactam ring is part of several antibiotics, such as penicillin, which are therefore also called beta-lactam antibiotics''. These antibiotic	Beta-lactamaseBeta-lactamase is a type of enzyme responsible for bacterial resistance to penicillin-type antibiotics. Penicillin and related antibiotics have a common element in their molecular structure, a four-atom ring known as a beta lactam (See ampicillin for an e
Beta decayIn nuclear physics, beta decay (sometimes called neutron decay is a type of radioactive decay in which a beta particle (an electron or a positron) is emitted. In the case of electron emission, it is referred to as "beta minus" (β−); in the case	Beta sheetThe beta; sheet (also beta;-pleated sheet is a commonly occurring form of regular secondary structure in proteins, first proposed by Linus Pauling and Robert Corey in 1951. It consists of two or more amino acid sequences within the same protein that are a	Beta particleBeta radiation is a form of ionizing radiation emitted by certain types of radioactive nuclei such as potassium-40. This radiation is in the form of beta (β) particles, which are high-energy electrons or positrons ejected from a nucleus in a process
Beta-lactam antibiotic	Beta cell	Betazed
BETA	Beta carbon nitride	Beta (letter)
Beta blocker	Betamax	Beta distribution

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