Table 3. Analysis of the total protein list with respect to functional categories.

						Proteins detected		Membrane proteins detected*		mRNA detected
Category	Genes/proteins	Membrane proteins*	Mean no. of tryptic peptides predicted†	Mean mRNA signal (arithmetic)†	Mean mRNA signal (geometric)†	No.	%	No.	%	No.	%
1 Cell processes	608	355	12.6	2,000	550	171	28.1	63	17.7	431	70.9
2 Extrachromosomal	92	12	14.2	1,270‡	210‡	8	8.8	4	33.3	25	48.1‡
3 Global functions	55	12	15.8	2,610	1,050	22	40.7	3	25.0	47	85.5
4 Macromolecule metabolism	315	43	19.4	3,100	1,090	156	49.7	15	34.9	283	89.8
5 Metabolism of small molecules	881	111	15.6	2,630	820	385	43.7	25	22.5	673	76.4
6 Miscellaneous	742	180	14.1	780§	280§	117	15.8	14	7.8	421	57.4§
7 Open reading frames¶	1,409	258	9.8	780∥	280∥	199	14.1	18	7.0	803	57.7∥
8 Structural elements	215	46	11.6	17,000	2,160	89	46.8**	18	39.1	1,369	78.6
9 tRNA	86	—	—	7,800	2,150	—	—	—	—	71	82.6
10 Sum or average††	4,403	1,017	13.1	2,470‡‡	490‡‡	1,147	26.7**	160	15.7	2,923	67.4‡‡

^*High estimate.

^†Data are for all proteins/genes in category. The values for arithmetic means for expressed genes in each category were as follows: 1, 2,770; 2, 2,530; 3, 3,020; 4, 3,420; 5, 3,400; 6, 1,260; 7, 1,260; 8, 21,590; 9, 9,430; 10, 3,600. The values for geometric means for expressed genes were as follows: 1, 1,060; 2, 830; 3, 1,530; 4, 1,360; 5, 1,470; 6, 620; 7, 680; 8, 5,000; 9, 4,810; 10, 1,090.

^‡Forty genes were not represented on Affymetrix GeneChips.

^§Nine genes were not represented on Affymetrix GeneChips.

^¶This is the same as proteins of unknown function in Tables 1 and 2.

^∥Seventeen genes were not represented on Affymetrix GeneChips.

^**Stable RNAs were excluded from calculations.

^††As appropriate.

^‡‡Sixty-six genes were not represented on Affymetrix GeneChips.