Table 3

*List of proteins in the E. coli* protein translation operons**
Operon name	Eco ORF	Yeast	COG ID	Function	ORF description

tRNA synthetase and peptidase	b0026	Yes*	COG0060	J2	Isoleucine tRNA synthetase
tRNA synthetase and peptidase	b0027	No	COG0597	N	Prolipoprotein signal peptidase
tRNA synthetase and peptidase	b0028	No	COG1047	O	Probable FKBX-type 16kD peptidyl-prolyl cis-trans isomerase
rRNA modification and chaperone	b0049	Yes*	COG0639	T	Diadenosine tetraphosphatase
rRNA modification and chaperone	b0050	No	COG2967	P	Uncharacterized protein affecting Mg²⁺/Co²⁺ transport
rRNA modification and chaperone	b0051	Yes**	COG0030	J	6-m-2-A methyltransferase; put. 16S rRNA methyltransferase
rRNA modification and chaperone	b0052	No	COG1995	H9	Pyridoxine and pyridoxal phosphate biosynthesis
rRNA modification and chaperone	b0053	Yes	COG0760	O	Peptidyl prolyl isomerase
Ribosomal protein 1	b0169	Yes**	COG0052	J3	Ribosomal protein S2
Ribosomal protein 1	b0170	No	COG0264	J1	Translation elongation factor EF-Ts
Ribosomal protein 1	b0171	No	COG0528	F3	Uridylate kinase
Ribosomal protein 1	b0172	Yes*	COG0233	J1	Ribosome releasing factor operon?
tRNA modification and protein export	b0405	No	COG0809	J	S-adenosylmethionine:tRNA ribosyltransferase-isomerase
tRNA modification and protein export	b0406	No	COG0343	J	Queuine tRNA-ribosyltransferase
tRNA modification and protein export	b0407	No	COG1862	N	ORF, hypothetical protein
tRNA modification and protein export	b0408	No	COG0342	N	Protein-export membrane protein SecD
tRNA modification and protein export	b0409	No	COG0341	N	Protein-export membrane protein SecF
Ribosomal protein 2	b0910	No	COG0283	F3	Cytidine monophosphate kinase
Ribosomal protein 2	b0911	Yes*	COG0539	J3	Ribosomal protein S1
Ribosomal protein 3	b1088	No	COG1399	R	Predicted metal-binding, possibly nucleic acid-binding protein
Ribosomal protein 3	b1089	Yes	COG0333	J4	Ribosomal protein L32
tRNA synthetase and oxidase	b1637	Yes*	COG0162	J2	Transfer RNA-Tyr synthetase
tRNA synthetase and oxidase	b1638	Yes	COG0259	H9	Pyridoxamine 5'-phosphate oxidase
Phenylalanine tRNA synthetase	b1713	Yes	COG0073	R	Phenylalanine tRNA synthetase, beta subunit
Phenylalanine tRNA synthetase	b1714	Yes*	COG0016	J2	Phenylalanine tRNA synthetase, alpha subunit
Ribosomal protein 4	b2606	Yes*	COG0335	J4	Ribosomal protein L19
Ribosomal protein 4	b2607	No	COG0336	J	tRNA (m1G) methyltransferae
Ribosomal protein 4	b2608	No	COG0806	J	ORF, hypothetical protein
Ribosomal protein 4	b2609	Yes	COG0228	J3	Ribosomal protein S16
Ribosomal protein 5	b3065	No	COG0828	J3	Ribosomal protein S21
Ribosomal protein 5	b3066	No	COG0358	L1	DNA primase
Ribosomal protein 5	b3067	No	COG0568	K1	RNA polymerase sigma-subunit
Ribosomal protein 6	b3164	No	COG1185	J	Polynucleotide phosphorilase
Ribosomal protein 6	b3165	Yes**	COG0184	J3	Ribosomal protein S15
RNA modification	b3166	Yes*	COG0130	J	tRNA pseudouridine 55 synthase; P35
RNA modification	b3167	No	COG0858	J	Ribosome-binding factor A; P15B
Transcription and translation	b3168	Yes	COG0532	J1	Initiation factor IF2-alpha (infB)
Transcription and translation	b3169	No	COG0195	K2	NusA protein
Transcription and translation	b3170	No	COG0779	S	Hypothetical 16.8 kD protein
Ribosomal protein 7	b3185	Yes*	COG0211	J4	Ribosomal protein L27
Ribosomal protein 7	b3186	No	COG0261	J4	Ribosomal protein L21
Ribosomal protein 8	b3230	Yes**	COG0103	J3	30S ribosomal protein S9
Ribosomal protein 8	b3231	Yes**	COG0102	J4	50S ribosomal protein L13
Ribosomal protein 9	b3258	Yes*	COG0591	EHR	Pantothenate permease
Ribosomal protein 9	b3259	No	COG2264	J	Ribosomal protein L11 methyltransferase
tRNA modification	b3287	No	COG0242	J1	N-formylmethionylaminoacyl-tRNA deformylase
tRNA modification	b3288	Yes	COG0223	J1	Methionyl-tRNA formyltransferase
tRNA modification	b3289	Yes**	COG0144	J	Sun protein (Fmu protein)
Ribosomal protein 10	b3294	Yes*	COG0203	J4	50S ribosomal protein L17
Ribosomal protein 10	b3295	Yes**	COG0202	K1	RNA polymerase, alpha subunit
Ribosomal protein 10	b3296	Yes**	COG0522	J3	30S ribosomal protein S4
Ribosomal protein 10	b3297	Yes**	COG0100	J3	30S ribosomal protein Sll
Ribosomal protein 10	b3298	Yes**	COG0099	J3	30S ribosomal protein S13
Ribosomal protein 11	b3299	Yes	COG0257	J4	50S ribosomal protein X
Ribosomal protein 11	b3300	No	-	-	(secY) membrane protein, protein secretion
Ribosomal protein 11	b3301	Yes**	COG0200	J4	50S ribosomal protein L15
Ribosomal protein 11	b3302	Yes**	COG1841	J4	50S ribosomal protein L30
Ribosomal protein 11	b3303	Yes**	COG0098	J3	30S ribosomal protein S5
Ribosomal protein 11	b3304	Yes**	COG0256	J4	50S ribosomal protein L18
Ribosomal protein 11	b3305	Yes**	COG0097	J4	50S ribosomal protein L6
Ribosomal protein 11	b3306	Yes**	COG0096	J3	30S ribosomal protein S8
Ribosomal protein 11	b3307	Yes**	COG0199	J3	30S ribosomal protein S14
Ribosomal protein 11	b3308	Yes**	COG0094	J4	50S ribosomal protein L5
Ribosomal protein 11	b3309	Yes**	COG0198	J4	50S ribosomal protein L24
Ribosomal protein 11	b3310	Yes**	COG0093	J4	50S ribosomal protein L14
Ribosomal protein 12	b3311	Yes**	COG0186	J3	30S ribosomal protein S17
Ribosomal protein 12	b3312	Yes**	COG0255	J4	50S ribosomal protein L29
Ribosomal protein 12	b3313	Yes**	COG0197	J4	50S ribosomal protein L16
Ribosomal protein 12	b3314	Yes**	COG0092	J3	30S ribosomal protein S3
Ribosomal protein 12	b3315	Yes**	COG0091	J4	50S ribosomal protein L22
Ribosomal protein 12	b3316	Yes**	COG0185	J3	50S ribosomal protein S19
Ribosomal protein 12	b3317	Yes**	COG0090	J4	50S ribosomal protein L2
Ribosomal protein 12	b3318	Yes**	COG0089	J4	50S ribosomal protein L23
Ribosomal protein 12	b3319	Yes**	COG0088	J4	50S ribosomal protein L4
Ribosomal protein 12	b3320	Yes**	COG0087	J4	50S ribosomal protein L3
Ribosomal protein 12	b3321	Yes**	COG0051	J3	30S ribosomal protein S10
Ribosomal protein 13	b3339	Yes**	COG0050	J1	Protein chain elongation factor EF-Tu
Ribosomal protein 13	b3340	Yes**	COG0480	J1	Protein chain elongation factor EF-G
Ribosomal protein 13	b3341	Yes**	COG0049	J3	30S ribosomal protein S7
Ribosomal protein 13	b3342	Yes**	COG0048	J3	30S ribosomal protein S12
Dam superoperon	b3384	Yes*	COG0180	J2	Tryptophanyl-tRNA synthetase
Dam superoperon	b3385	Yes	COG0546	R	2-phosphoglycolate phosphatase
Dam superoperon	b3386	Yes	COG0036	G3	D-ribulose-5-phosphate epimerase
Dam superoperon	b3387	No	COG0338	L	Adenine methylase
Dam superoperon	b3388	No	COG3266	S	Putative membrane protein; interferes with cell division
Dam superoperon	b3389	Yes	COG0337	H7	3-dehydroquinate synthase
Dam superoperon	b3390m	Yes	COG0703	H7	Shikimic acid kinase I
Glycine trna synthetase	b3559	No	COG0751	J2	Glycine tRNA synthetase, beta chain
Glycine trna synthetase	b3560	No	COG0752	J2	Glycine tRNA synthetase, alpha chain
Ribonuclease and pyrimidine biosynthesis	b3642	Yes**	COG0461	F3	Orotate phosphoribosyltransferase
Ribonuclease and pyrimidine biosynthesis	b3643	Yes**	COG0689	J	Ribonuclease PH
Ribosomal protein 14	b3703	Yes	COG0230	J4	Ribosomal protein L34
Ribosomal protein 14	b3704	No	COG0594	J	Ribonuclease P protein component
Protein export and transcription	b3981	No	COG0690	N	Preprotein translocase secE subunit
Protein export and transcription	b3982	Yes*	COG0250	K2	Transcription antitermination
Ribosomal protein 15	b3983	Yes**	COG0080	J4	50S ribosomal protein Lll
Ribosomal protein 15	b3984	Yes**	COG0081	J4	50S ribosomal protein Ll
Ribosomal protein 16	b3985	Yes**	COG0244	J4	50S ribosomal protein L10
Ribosomal protein 16	b3986	Yes	COG0222	J4	50S ribosomal protein L7/L12
Ribosomal protein 16	b3987	Yes*	COG0085	K1	DNA-directed RNA polymerase beta chain
Ribosomal protein 16	b3988	Yes*	COG0086	K1	DNA-directed RNA polymerase beta' chain
Ribosomal protein 17	b4200	Yes*	COG0360	J3	30S ribosomal protein S6
Ribosomal protein 17	b4201	No	COG2965	L	Primosomal replication protein N
Ribosomal protein 17	b4202	Yes	COG0238	J3	30S ribosomal protein S18
Ribosomal protein 17	b4203	Yes	COG0359	J4	SOS ribosomal protein L9

The Yeast column indicates whether or not there is a yeast homolog of the bacterial gene (Yeast). The notation is as follows: No (genes lacking a yeast homolog), Yes (genes with a yeast homolog that was not present in the microarray data), Yes* (genes with a yeast homolog that, although present in the microarray data, were not part of the 'cytoplasmic translation' cluster) and Yes** (genes with a yeast homolog that are found in the cluster)
Jiménez et al. Genome Biology 2002 4:R4 doi:10.1186/gb-2002-4-1-r4