Your Query returns 59 Accession Numbers:

* OMIM link based on symbol match for human and mouse.
** HUGO symbol

Gene/Allele	Accession	NCBI Taxonid	Synonyms
copB	AL117189	632	repA2 repB YPCD1.79c
copB	AE004633	208964	pcoB
copB	L12346	480
copB	AB024946	562
copB	AP003603	103690
copB	M16167	562
copB	U83900	480
copB	U83901	480
copB	U69980	480
copB	U69981	480
copB	U69982	480
copB	U62960	44689
copB	AL935261	220668
copB	AP005942	224911
copB	AL646080	305	RS01792 RSp0657
copB	AE006319	1360	L70979
copB	AJ009980	573
copB	AJ009981	61648
copB	X55895	562
copB	AJ311971	294
copB	AJ278983	119219
copB	BX640421	257313
copB	BX640435	519
copB	BX640451	257310
copB	AE009330	180835	Atu3992
copB	BX664015	615
copB	L13292	1354
copB	AE012155	190485	XCC0576
copB	AE012013	190486	XAC3631
copB	AE016794	160488
copB	AE012553	183190
copB	AY321492	303
copB	AF187849	114517
copB	NC_002142	562
COPB	BC037280	9606	DKFZp761K102 COPB **
COPB	AY404985	9606	COPB **
COPB	AY404986	9598
COPB	AY404987	10090
COPB	NM_016451	9606	DKFZp761K102 COPB **
Copb	AF231925	10090
copB	AF129504	92869
CopB	AF129072	92833
copB	NC_004463	224911
copB	NC_000917	224325
copB	NC_003267	103690
copB	NC_003902	190485
copB	NC_003919	190486
copB	NC_002947	160488
copB	NC_004556	183190
copB	NC_005211	615
copB	NC_002927	257310
copB	NC_002929	257313
copB	NC_002662	1360
COPB	NT_009237	9606	COPB **
copB	NC_002928	257311
copB	NC_003131	214092	repA2 repB
copB	NC_004567	220668
copB	NC_003296	267608	RS01792
copB	NC_003305	176299

Text2Knowledge ... Yong Huang 2002