2000
DOI: 10.1042/bst0280095
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The multifunctional protein At MFP2 is co-ordinately expressed with other genes of fatty acid β-oxidation during seed germination in Arabidopsis thaliana (L.) Heynh

Abstract: In germinating oilseeds peroxisomal fatty acid beta-oxidation is responsible for the mobilization of storage lipids. This pathway also occurs in other tissues where it has a variety of additional physiological functions. The central enzymatic steps of peroxisomal beta-oxidation are performed by acyl-CoA oxidase (ACOX), the multifunctional protein (MFP) and 3-ketoacyl-CoA thiolase (thiolase). In order to investigate the function and regulation of beta-oxidation in plants it is first necessary to identify and ch… Show more

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Cited by 42 publications
(31 citation statements)
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“…One of six acyl-CoA oxidases (ACX) catalyzes the oxidation step, adding a double bond while releasing hydrogen peroxide (Hayashi et al 1999;Hooks et al 1999;Froman et al 2000;Rylott et al 2003;Adham et al 2005;Pinfield-Wells et al 2005). Next, a multifunctional protein (MFP2 or AIM1), containing both enoyl-CoA hydratase and acyl-CoA dehydrogenase activity, forms a b-ketoacyl-CoA thioester (Richmond and Bleecker 1999;Eastmond and Graham 2000;Rylott et al 2006). This substrate undergoes a thiolasemediated retro-Claisen reaction, releasing two carbons as acetyl-CoA and producing a chain-shortened substrate that can reenter the b-oxidation spiral for continued catabolism.…”
mentioning
confidence: 99%
“…One of six acyl-CoA oxidases (ACX) catalyzes the oxidation step, adding a double bond while releasing hydrogen peroxide (Hayashi et al 1999;Hooks et al 1999;Froman et al 2000;Rylott et al 2003;Adham et al 2005;Pinfield-Wells et al 2005). Next, a multifunctional protein (MFP2 or AIM1), containing both enoyl-CoA hydratase and acyl-CoA dehydrogenase activity, forms a b-ketoacyl-CoA thioester (Richmond and Bleecker 1999;Eastmond and Graham 2000;Rylott et al 2006). This substrate undergoes a thiolasemediated retro-Claisen reaction, releasing two carbons as acetyl-CoA and producing a chain-shortened substrate that can reenter the b-oxidation spiral for continued catabolism.…”
mentioning
confidence: 99%
“…Respecto a la segunda actividad implicada en β-oxidación, en el genoma de Arabidopsis se encuentran dos genes que codifican proteínas MFP con un amplio rango de substratos y que se expresan diferencialmente en la planta, llamados ABNORMAL INFLORESCENCE MERISTEM 1 (AIM1) (Richmond y Bleecker, 1999) y MULTIFUNCTIONAL PROTEIN 2 (MFP2) (Eastmond y Graham, 2000). Además, en el genoma de Arabidopsis se encuentran varios genes que codifican proteínas con funciones individuales de las MFP, tanto de enoilCoA hidratasa (At1g60550 y At5g43280) como hidroxiacil-CoA deshidrogenasa (At3g15290).…”
Section: Componentes De La β-Oxidaciónunclassified
“…No obstante, se han descrito diferencias en la expresión de algunos genes de β-oxidación en estos procesos. Mientras que la mayoría de genes ACXs aumentan su expresión en germinación (Hayashi et al, 1998a;Hooks et al, 1999;Eastmond et al, 2000b;Rylott et al, 2001), el gen MFP2 es el único de los genes MFP que aumenta su expresión durante la germinación de las semillas (Richmond y Bleecker, 1999;Eastmond y Graham, 2000). Por ultimo, el gen KAT2 codifica la isoenzima KAT que participa en mayor medida en esta etapa, disminuyendo sus niveles cuando la fotosíntesis es funcional (Kato et al, 1996;Hayashi et al, 1998b;Germain et al, 2001).…”
Section: Funciones De La β-Oxidaciónunclassified
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