TABLE 3.

Proteins increased in abundance in citronellate-grown cells with postulated function in catabolism of acyclic terpenes^a

Locus	Gene	Function	Fold change in expression	P value by ANOVA	No. of peptides used for quantification	Mol wt
PA1535		Citronellyl-CoA dehydrogenase	39.9	2.13E−05	15	42,040.8
PA1982	exaA	Quinoprotein ethanol dehydrogenase	60.8	1.51E−02	36	68,122.9
PA1984	exaC	NAD+-dependent aldehyde dehydrogenase	20.4	1.35E−03	32	54,892.3
PA2011	liuE	3-Hydroxy-3-methylglutaryl-CoA lyase	13.5	5.46E−04	11	31,837.1
PA2012	liuD	Methylcrotonyl-CoA carboxylase, alpha subunit	17.2	2.22E−04	27	71,282
PA2013	liuC	3-Methylglutaconyl-CoA hydratase	40.5	3.76E−06	14	28,946.7
PA2014	liuB	Methylcrotonyl-CoA carboxylase, beta subunit	46.7	1.31E−06	26	57,433.3
PA2015	liuA	Isovaleryl-CoA dehydrogenase	24.2	2.68E−05	32	42,208.8
PA2886	atuA	Protein of citronellol catabolism	92.8	2.40E−07	33	64,435.1
PA2887	atuB	Putative dehydrogenase	115.6	5.71E−05	16	30,750.7
PA2888	atuC	Geranyl-CoA carboxylase, beta subunit	50.3	1.40E−06	22	57,328
PA2889	atuD	Citronellyl-CoA dehydrogenase	25.2	8.54E−05	32	42,714
PA2890	atuE	Isohexenylglutaconyl-CoA hydratase	23.1	8.33E−05	12	27,717.4
PA2891	atuF	Geranyl-CoA carboxylase, alpha-subunit	38.2	2.99E−05	34	71,747.2
PA2892	atuG	Short-chain dehydrogenase	43.5	1.27E−06	17	29,630.6
PA4330		Probable enoyl-CoA hydratase/isomerase	21.2	2.49E−04	13	28,152.2

^aSelection of proteins that were increased in abundance in citronellate-grown cells compared to their abundance in octanoate-grown cells and with a proposed function in the catabolism of citronellol. Proteins of the Atu and Liu gene clusters are in bold. For a complete overview of all proteins identified in our proteomics survey, see Data Set S2 in the supplemental material.