TABLE 1 .

Proteins regulated by growth on MTA^a

Gene identifier	Protein name	Fold change
A0274	Acetyl-CoA C-acetyltransferase	−2.30
A0276	PHB synthesis repressor, PhaR	1.69
A0774	O-Acetylhomoserine sulfhydrylase	3.14
A0779	MetQ-like solute-binding protein	6.32
A0784	O-Acetylhomoserine sulfhydrylase	3.88
A0786	Cystathionine gamma-synthase	10.88
A0788	MetN ABC transporter	9.44
A0791	NlpAb lipoprotein	6.38
A1142	Glycine hydroxymethyltransferase	−3.09
A1308	Acyl-CoA dehydrogenase	−11.41
A1309	Acetoacetyl-CoA reductase	−4.92
A1310	Acetyl-CoA C-acyltransferase	−4.38
A1334	Ribose-5-phosphate isomerase B	9.82
A1823	3,4-Dihydroxy-2-butanone-4P synthase	−1.80
A1958	GMP reductase	−12.04
A1964	Adenylosuccinate synthase	−12.18
A1998	RubisCO-like MTRu-1P isomerase	8.13
A2000	Cupin-like MTXu-5P sulfurylase	0.96
A2400	RubisCO, form II	10.57
A2404	Phosphoribulokinase	9.50
A2413	PHB synthase, class I	−3.61
A2417	MetQ periplasmic solute-binding protein	2.63
A2419	MetN ABC transporter	2.28
A2465	Pyruvate kinase	−1.27
A2817	Phasin	14.52
A3206	CheY response regulator protein	8.83
A3283	Phasin-like activator of PHB degradation	1.51
A3575	Acetate-CoA ligase	−2.33

^aProtein name and gene correspond to annotated R. rubrum ATCC 11170 genome (NCBI reference sequence NC_007643.1). Fold change is the increase (+) or decrease (−) in protein abundance observed in MTA- versus sulfate-grown cells by deep proteomics.

^bNlpA, inner membrane lipoprotein A.