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The Chemical Entities of Biological Interest (ChEBI) ontology is downloaded weekly from EMBL-EBI at The data is made available under the Creative Commons License (CC BY 3.0, For more information see: Degtyarenko et al. (2008) ChEBI: a database and ontology for chemical entities of biological interest. Nucleic Acids Res. 36, D344–D350.

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Accession:CHEBI:18222 term browser browse the term
Definition:An aldopentose, found in the embryos of most edible plants and used in medicine to test for malabsorption by administration in water to the patient.
Synonyms:exact_synonym: xylo-pentose
 related_synonym: DL-xylose;   Formula=C5H10O5;   Xyl
 alt_id: CHEBI:10085;   CHEBI:15332;   CHEBI:27348;   CHEBI:33944;   CHEBI:46500
 xref: KEGG:C01394
 xref_mesh: MESH:D014994
 xref: Wikipedia:Xylose

show annotations for term's descendants           Sort by:
xylose term browser
Symbol Object Name Qualifiers Evidence Notes Source PubMed Reference(s) RGD Reference(s) Position
G Lct lactase increases hydrolysis EXP LCT protein results in increased hydrolysis of Xylose CTD PMID:14701853 NCBI chr13:44,998,414...45,040,593
Ensembl chr13:44,998,414...45,040,593
JBrowse link
G Srebf1 sterol regulatory element binding transcription factor 1 increases expression ISO Xylose results in increased expression of SREBF1 mRNA CTD PMID:10913129 NCBI chr10:46,570,996...46,593,021
Ensembl chr10:46,570,996...46,593,009
JBrowse link

Term paths to the root
Path 1
Term Annotations click to browse term
  CHEBI ontology 19787
    role 19734
      biological role 19734
        biochemical role 19282
          metabolite 19263
            eukaryotic metabolite 18908
              plant metabolite 17360
                xylose 2
                  D-xylose + 0
                  L-xylose + 0
                  xylose derivative + 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 19787
    subatomic particle 19784
      composite particle 19784
        hadron 19784
          baryon 19784
            nucleon 19784
              atomic nucleus 19784
                atom 19784
                  main group element atom 19672
                    p-block element atom 19672
                      carbon group element atom 19574
                        carbon atom 19563
                          organic molecular entity 19563
                            heteroorganic entity 19148
                              organochalcogen compound 18856
                                organooxygen compound 18778
                                  carbohydrates and carbohydrate derivatives 12180
                                    carbohydrate 12180
                                      monosaccharide 4023
                                        aldose 2537
                                          aldopentose 672
                                            xylose 2
                                              D-xylose + 0
                                              L-xylose + 0
                                              xylose derivative + 0
paths to the root


RGD is funded by grant HL64541 from the National Heart, Lung, and Blood Institute on behalf of the NIH.