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Vitamin digestion and absorption - Ornithorhynchus anatinus


Model information
Identifier: BMID000000023059
Format: SBML L3 V1 (Layout, Qualitative Models)
Project: path2models
Categories: non-metabolic
Submission: 17 May 2012 17:57:28 UTC
Last modified: 08 Dec 2012 00:53:06 UTC
Published: 19 May 2012 23:49:21 UTC
isDescribedBy vitamin transport Gene Ontology
occursIn Ornithorhynchus anatinus Taxonomy
isDerivedFrom Vitamin digestion and absorption KEGG Pathway
Model of “Vitamin digestion and absorption” in “Ornithorhynchus anatinus (platypus)”
Vitamins are a diverse and chemically unrelated group of organic substances that share a common feature of being essential for normal health and well-being. They catalyze numerous biochemical reactions. Because humans and other mammals cannot synthesize these compounds (except for some synthesis of niacin), they must obtain them from exogenous sources via intestinal absorption. Vitamins are classified based on their solubility in water or fat. Most of the water-soluble vitamins are transported across the small intestinal membrane by carrier-mediated mechanisms, but vitamin B12, cobalamin, is transported by a receptor-mediated mechanism. Intestinal absorption of fat-soluble vitamins requires all of the processes needed for fat absorption. After digestion, these vitamins and the products of pancreatic hydrolysis of triglycerides (TG) are emulsified by bile salts to form mixed micelles which are taken up by intestinal enterocytes and incorporated into chylomicrons (CM). CM are then secreted into the lymphatic system, and finally moves into the plasma.

Graphical representation of 'Vitamin digestion and absorption (Ornithorhynchus anatinus (platypus))'
(PNG image hosted by the Kyoto Encyclopedia of Genes and Genomes, KEGG).
This model has been automatically generated by KEGGtranslator V2.3.0 (KEGGtranslator: visualizing and converting the KEGG PATHWAY database to various formats. Wrzodek C, Dräger A, Zell A. Bioinformatics . 2011, 27 :2314-2315) using information coming from the KEGG PATHWAY Database ( original pathway ).
This model has been produced by the path2models project, it is currently hosted on BioModels Database and identified by: BMID000000023059 .
To the extent possible under law, all copyright and related or neighbouring rights to this encoded model have been dedicated to the public domain worldwide. Please refer to CC0 Public Domain Dedication for more information.