plantsUPS: a database of plants' Ubiquitin Proteasome System

BMC Genomics

Table 2 Genes data statistics in plantsUPS

	E1	E2	Fbox	SKP	RING finger	BTB	Cullin	Ubox	HECT	RBX*	DDB*	Total
Arabidopsis	2	47	654	21	465	79	10	62	7	2	5	1354
Rice	6	49	702	27	378	126	10	76	8	2	3	1387
Poplar	6	70	335	15	399	81	13	93	7	3	5	1027
Soybean	6	107	418	18	725	77	24	120	19	2	3	1519
Grape	3	45	153	10	330	63	8	56	9	null	null	677
Medicago	2	40	539	36	294	41	12	38	9	null	null	1011
Maize**	9	59	325	31	401	129	6	119	21	null	null	1100

Six species have > 1000 UPS members. F-box and RING finger families are the most abundant gene families.
*BLAST search for RBX or DDB families may find no qualified hits in some species, and we present 'null' for such situations.
**For reasons of ongoing annotating and unexpected complexity in maize, the numbers here may not reflect the integrated UPS profile for maize.

ISSN: 1471-2164