TABLE 1.

The number of small, secreted proteins (SSPs) in the wheat genome.

Chromosome	Whole genome			Filtered		SSPse
	Total	Smalla	+SPb	+GPI-anchorc	+TMHd
1A	11947	6743	793	55	1	295
1B	14047	8144	864	70	0	322
1D	11653	6384	808	66	1	285
2A	15186	8172	1176	81	0	339
2B	17266	9567	1268	86	0	392
2D	14982	7920	1235	83	0	361
3A	14391	7909	1103	81	1	352
3B	16845	9322	1227	85	0	419
3D	13769	7129	1109	71	0	342
4A	13791	7664	860	75	0	307
4B	11409	6403	754	59	2	270
4D	9600	5091	626	53	0	189
5A	14389	8094	949	72	1	319
5B	15355	8509	989	59	1	352
5D	13814	7360	981	73	0	307
6A	11533	6510	731	37	0	275
6B	14248	8207	847	36	0	307
6D	10383	5554	703	29	0	221
7A	15146	8608	1043	77	1	355
7B	14760	8442	914	70	0	305
7D	14430	7847	1009	68	1	314
Un	9830	6507	774	74	3	370

^aSmall (≤250 amino acids) proteins. ^bThe number proteins with a signal peptide (predicted to be secreted). ^cSmall proteins, with a signal peptide and a predicted glycosylphosphatidylinositol anchor. ^dSmall proteins, with a signal peptide and predicted transmembrane helices (≥1). ^ePredicted small, secreted proteins (with no GPI-anchor or TMH).