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Meaning of 1

WordNet Dictionary
  1. [n]  the smallest whole number or a numeral representing this number; "he has the one but will need a two and three to go with it"; "they had lunch at one"
  2. [adj]  used of a single unit or thing; not two or more; "`ane' is Scottish"

1 is a 1 letter word that starts with 1.


 Synonyms: ace, ane, cardinal, i, I, one, one, single, unity
 See Also: digit, figure, monad, monas, singleton



Biology Dictionary
 Definition: Previously known as 1,3-diphosphoglycerate (1,3DPG), this molecule is the first molecule that generates ATP in glycolysis. Its phosphoryl group generates a high-potential phosphorylated compound through a redox reaction.

1,3BPG is also responsible for the production of an allosteric effector of hemoglobin, 2,3-bisphosphoglycerate (2,3BPG). In this reaction, a phosphoryl group is transferred from 1,3BPG to the C-2 of 3PG. This yields 2,3BPG and a different 3PG molecule.