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0.5

0.5

Reference type:
Overview Pages
orsymbol (in enzyme kinetics) for the value of the concentration of a substrate, A, in mol dm−3, at which the velocity of the reaction, v, is half the maximum velocity, V; i.e. when v = 0.5V.[...]
14

14

C a radioactive isotope of normal carbon (12C) emitting a weak beta particle. The half-life of 14C is 5,700 years. This radioisotope is extensively used as a tracer in molecular biology.
50

50

Reference type:
Overview Pages
symbol for the molar concentration of an agonist that produces 50% of the maximal possible effect of that agonist. Other percentage values ([A]20, [A]40, etc.) can be specified. The action of the ...
a

a Reference library

Oxford Dictionary of Biochemistry and Molecular Biology (2 ed.)

Reference type:
Subject Reference
Current Version:
2008
Subject:
Science and technology, Life Sciences
Length:
18 words

1 abbr. for adsorbed. ...

2 symbol for atto+ (SI prefix denoting 10−18).

3 axial.

4 year.

Å

Å Reference library

Oxford Dictionary of Biochemistry and Molecular Biology (2 ed.)

Reference type:
Subject Reference
Current Version:
2008
Subject:
Science and technology, Life Sciences
Length:
11 words

symbol for ångström (unit of length equal to 10−10 m). ...

2′-5′A

2′-5′A

Reference type:
Overview Pages
symbol for any member of a series of oligonucleotides of the general formula pa A[2′p5′A]n, where p and A are phosphoric and adenosine residues, respectively, and a and n are ...
A

A

Reference type:
Overview Pages
symbol for1 acid‐catalysed (of a reaction mechanism).2 a residue of the α‐amino acid l‐alanine (alternative to Ala).3 a residue of the base adenine in a nucleic‐acid sequence.[...]
A

A

The number 10 in hexadecimal notation.
a

a

Reference type:
Overview Pages
1 abbr. for adsorbed.2 symbol for atto+ (SI prefix denoting 10−18).3 axial.4 year.
A

A

1. mass number of an atom; 2. haploid set of autosomes; 3. ampere; 4. adenine or adenosine.

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