Send us a Message

Submit Data |  Help |  Video Tutorials |  News |  Publications |  Download |  REST API |  Citing RGD |  Contact   


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.

Term:MALDI matrix material
go back to main search page
Accession:CHEBI:64345 term browser browse the term
Definition:A compound used to form the matrix for MALDI (matrix-assisted laser desorption/ionization) mass spectrometry. MALDI matrix materials are crystalline compounds with a fairly low molecular weight, so as to allow facile vaporization, have strong absorption at UV or IR wavelengths (to rapidly and efficiently absorb laser irradiation), generally contain polar groups (enabling them to be used in aqueous solutions) and are frequently acidic (so assisting ionisation of the compound being studied, which is contained within the matrix material).
Synonyms:related_synonym: 'matrix-assisted laser desorption/ionization' matrix material;   'matrix-assisted laser desorption/ionization' matrix materials;   MALDI matrix materials;   MALDI matrix solution;   MALDI matrix solutions
 xref: PMID:15373456;   Patent:EP2060919;   Wikipedia:Matrix-assisted_laser_desorption/ionization#Matrix

show annotations for term's descendants           Sort by:
curcumin term browser
Symbol Object Name Qualifiers Evidence Notes Source PubMed Reference(s) RGD Reference(s) Position
G ACO2 aconitase 2 multiple interactions EXP Curcumin inhibits the reaction [maleic acid results in decreased activity of ACO2 protein] CTD PMID:25119790 NCBI chr 5:7,014,383...7,071,023
Ensembl chr 5:7,008,719...7,071,025
JBrowse link
picolinic acid term browser
Symbol Object Name Qualifiers Evidence Notes Source PubMed Reference(s) RGD Reference(s) Position
G IL6 interleukin 6 multiple interactions EXP picolinic acid promotes the reaction [Lipopolysaccharides results in increased secretion of IL6 protein] CTD PMID:8724211 NCBI chr 9:91,506,421...91,510,830
Ensembl chr 9:91,506,421...91,511,263
JBrowse link
G TNF tumor necrosis factor multiple interactions EXP picolinic acid inhibits the reaction [Lipopolysaccharides results in increased expression of TNF protein] CTD PMID:9185964 NCBI chr 7:23,699,635...23,702,393
Ensembl chr 7:23,699,628...23,702,416
JBrowse link

Term paths to the root
Path 1
Term Annotations click to browse term
  CHEBI ontology 5022
    role 4984
      application 814
        MALDI matrix material 3
          2',4',6'-trihydroxyacetophenone 0
          2,5-dihydroxybenzoic acid + 0
          2-(4-hydroxyphenylazo)benzoic acid 0
          3-hydroxypicolinic acid 0
          9-aminoacridine 0
          alpha-cyano-4-hydroxycinnamic acid 0
          ferulic acid + 1
          picolinic acid + 2
          sodium ferulate 0
          trans-2-[3-(4-tert-butylphenyl)-2-methyl-2-propenylidene]malononitrile 0
          trans-sinapic acid + 0
paths to the root