Table 1.

Extracellular proteins of C. violaceum identified using MALDI-TOF/TOF MS

Spot nº	Locus tag	Protein	Cellular localizationa	COG Classb
1, 28, 32, 40, 51, 64, 67, 71	CV_1097	Binding protein component of ABC dipeptide transporter	E	E
2	CV_1709	Flagellar hook-associated protein FlgK	C	N
3	CV_3931	Chitosanase A	E	G
4, 10, 33, 43, 44, 82	CV_2001	Collagenase	C	O
5	CV_3475	Hypothetical protein CV_3475	E	S
6, 8, 18, 35, 45, 46, 52, 53, 57, 59, 70, 76, 77, 79	CV_1440	Hydrolase transmembrane protein	E	R
7	CV_4329	Oligopeptide ABC transporter system, substrate-binding protein	E	E
9, 16	CV_3739	Peroxidase	C	P
11, 85	CV_0349	Hypothetical protein CV_0349	C	S
12, 42, 58, 60, 63, 68, 69, 86	CV_4107	Hypothetical protein CV_4107	PSE	S
13, 19, 21	CV_1710	Flagellar hook-associated protein FlgL	C	N
14	CV_4224	Hypothetical protein CV_4224	C	S
15, 27, 31, 41	CV_0350	Phage sheath protein	C	R
17, 18, 66	CV_3323	Carbohydrate-binding protein	E	S
20, 49, 56	CV_2994	Flagellar hook-associated protein FliD	C	N
22, 36	CV_1706	Flagellar basal body rod protein FlgG	C	N
23, 24, 55, 62, 78	CV_3977	Hypothetical protein CV_3977	C	S
25	CV_0362	Thermolabile hemolysin, lecithin-dependent	C	R
26	CV_0867	Superoxide dismutase	E	P
29, 30	CV_1369	Hypothetical protein CV_1369	E	S
34	CV_3276	Hypothetical protein CV_3276	E	S
36, 54, 61	CV_2893	Hypothetical protein CV_2893	E	S
37, 83	CV_4188	Elongation factor Tu	C	J
38, 39, 47, 49, 73, 75	CV_3011	Flagellin D	C	N
48	CV_0223	Hypothetical protein CV_0223	C	H
50	CV_3506	Protease precursor	E	R
54	CV_0408	Hypothetical protein CV_0408	C	S
57	CV_1703	Flagellar basal body rod modification protein	C	N
65	CV_4240	Chitinase	E	G
71	CV_2390	Riboflavin synthase subunit beta	C	H
71	CV_0340	Tail fiber assembly protein	C	R
72	CV_0424	Hypothetical protein CV_0424	C	R
74	CV_1415	γ-glutamyltransferase precursor	E	E
80	CV_0410	Bacteriophage tail core protein	C	R
81	CV_2034	Peptidoglycan N-acetylmuramoyl hydrolase	E	M
84	CV_0409	Bacteriophage tail sheath protein	C	R

^a E extracellular protein, C cytoplasmic protein, PSE potentially surface-exposed protein, according to the SurfG prediction

^bClasses of clusters of orthologous groups (COG): (E) amino acid transport and metabolism; (G) carbohydrate transport and metabolism; (H) coenzyme metabolism; (J) translation, ribosomal structure, and biogenesis; (M) cell envelope biogenesis; (N) cell motility and secretion; (O) posttranslational modification, protein turnover, chaperones; (P) inorganic ion transport and metabolism; (R) general function prediction only; (S) function unknown