RGD Reference Report - Assay for spermidine synthase activity by micellar electrokinetic chromatography with laser-induced fluorescence detection. - Rat Genome Database

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Assay for spermidine synthase activity by micellar electrokinetic chromatography with laser-induced fluorescence detection.

Authors: Sano, M  Nishino, I 
Citation: Sano M and Nishino I, J Chromatogr B Analyt Technol Biomed Life Sci. 2007 Jan 1;845(1):80-3. Epub 2006 Aug 23.
RGD ID: 7242920
Pubmed: PMID:16931179   (View Abstract at PubMed)
DOI: DOI:10.1016/j.jchromb.2006.07.052   (Journal Full-text)

An assay for spermidine synthase (SPDS) activity in rat liver has been developed using micellar electrokinetic chromatography (MEKC) with laser-induced fluorescence (LIF) detection to enable the discovery of SPDS inhibitors. The assay was established by estimating the amount of spermidine (SPD) produced from the putrescine (PUT) present by SPDS. The SPD in an enzyme reaction mixture of homogenized rat liver could directly react with 7-fluoro-4-nitrobenzo-2-oxa-1,3-diazole (NBD-F) as a fluorescence derivatization reagent. The NBD derivatives of SPD and PUT could be separated and detected by MEKC-LIF detection within 15 min. The IC(50) value measured for SPDS inhibitor, 4-methylcyclohexylamine, in rat liver by this assay was consistent with published data. Our SPDS assay using MEKC-LIF is simple and allows easy determination of SPDS activity in homogenized samples without troublesome procedures such as preparation of antibody or fluorescence-labeled substrate. The assay should be effective for discovering the SPDS inhibitors using biological samples.



Gene Ontology Annotations    Click to see Annotation Detail View

Biological Process

  
Object SymbolSpeciesTermQualifierEvidenceWithNotesSourceOriginal Reference(s)
SrmRatspermidine biosynthetic process  IDA  RGD 

Molecular Function

  
Object SymbolSpeciesTermQualifierEvidenceWithNotesSourceOriginal Reference(s)
SrmRatspermidine synthase activity  IDA  RGD 

Molecular Pathway Annotations    Click to see Annotation Detail View

RGD Manual Annotations


  
Object SymbolSpeciesTermQualifierEvidenceWithNotesSourceOriginal Reference(s)
SRMHumanspermidine metabolic pathway  ISOSrm (Rattus norvegicus) RGD 
SrmRatspermidine metabolic pathway  IDA  RGD 
SrmMousespermidine metabolic pathway  ISOSrm (Rattus norvegicus) RGD 
Objects Annotated

Genes (Rattus norvegicus)
Srm  (spermidine synthase)

Genes (Mus musculus)
Srm  (spermidine synthase)

Genes (Homo sapiens)
SRM  (spermidine synthase)


Additional Information