pyridoxal
American Heritage Dictionary:
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pyr·i·dox·al
(pĭr'ĭ-dŏk'səl) 
n.
An aldehyde, C8H9NO3, one of several active forms of pyridoxine, important in amino acid synthesis.
n.
An aldehyde, C8H9NO3, one of several active forms of pyridoxine, important in amino acid synthesis.
[PYRIDOX(INE) + -AL3.]
American Heritage Stedman's Medical Dictionary:
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pyr·i·dox·al
(pĭr'ĭ-dŏk'səl)
n.
n.
An aldehyde that is one of several active forms of pyridoxine and is important in amino acid synthesis.
Oxford Dictionary of Biochemistry:
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pyridoxal
abbr.: PL; 3-hydroxy-5-(hydroxymethyl)-2-methyl-4-pyridine carboxaldehyde; a compound with vitamin B6 activity.
| pyridine-nucleotide coenzyme, pyranose, pyranopterin | |
| pyridoxal kinase, pyrimidine, pyrimidine biosynthesis |
Wikipedia on Answers.com:
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Pyridoxal
| Pyridoxal | |
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3-hydroxy-5-(hydroxymethyl)-2-methylpyridine-4-carbaldehyde |
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| Identifiers | |
| CAS number | 66-72-8  , 65-22-5 (hydrochloride) |
| PubChem | 1050 |
| ChemSpider | 1021 |
| UNII | 3THM379K8A |
| DrugBank | DB00147 |
| KEGG | C00250 |
| ChEBI | CHEBI:17310 |
| ChEMBL | CHEMBL102970 |
| Jmol-3D images | Image 1 |
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| Properties | |
| Molecular formula | C8H9NO3 |
| Molar mass | 167.16 g/mol |
| Melting point |
165 °C (decomp.) |
| Related compounds | |
| Related arylformaldehydes | Damnacanthal |
 (verify) (what is:  / ?)Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) |
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| Infobox references | |
Pyridoxal is one of the three natural forms of vitamin B6, along with pyridoxamine and pyridoxine (also called "pyridoxol"). All of these forms are converted in the human body into a single biologically active form, pyridoxal 5-phosphate. All three forms of vitamin B6 are heterocyclic organic compounds. Green plants are a natural source of pyridoxal, and its deficiency in the human body can lead to serious complications such as epilepsy and seizures.
There are generally three pyridoxal-phosphate (PLP) reactions: transamination, alpha elimination, and beta-elimination.
Pyridoxal is involved in what is believed to be the most ancient reaction of aerobic metabolism on Earth, about 2.9 billion years ago, a forerunner of the Great Oxidation Event[1]
References
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This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. (September 2007) |
- ^ "Protein Domain Structure Uncovers the Origin of Aerobic Metabolism and the Rise of Planetary Oxygen", Gustavo Caetano-Anolles et al., published in Structure; paper available from University of Illinois News Bureau, 2012.
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American Heritage Dictionary
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.
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American Heritage Stedman's Medical Dictionary
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company.
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Oxford Dictionary of Biochemistry
Oxford University Press. Oxford Dictionary of Biochemistry and Molecular Biology © 1997, 2000, 2006 All rights reserved.
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