Your Query returns 66 Accession Numbers:

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

Gene/Allele	Accession	NCBI Taxonid	Synonyms
3a	U80872	9913	BoLA-DQA1
3a	AY320272	4576	hm2
3A	AJ628887	305
3A	AJ628888	305
3A	AJ628889	305
3A	AJ628890	305
3a	AF226852	120086
3a	AF261667	134554
3a	AY039807	161736
3a	AJ242560	9606
3a	AJ242561	9606
3A	K02060	10090
3a	D10538	12305
3a	D10539	12305
3a	AB046951	12305
3a	AF013285	37733
3a	AF013286	37733
3a	AF013287	37733
3a	AJ517802	12305
3a	AB049568	12305
3a	AB080600	188141
3a	AB008777	12305
3a	AB119091	12305
3A	AF317285	10394
3A	X70845	12092
3a	AJ237849	12315
3a	AJ237850	12305
3a	AJ511990	12305
3a	AJ311317	160235
3A	Y11876	12305
3a	AJ311362	160750
3a	AJ304397	12305
3a	AJ304398	12305
3a	AJ304399	12305
3A	X67706	12074
3a	Y13921	12663
3A	AJ276224	12078
3A	AJ005695	39085
3A	X84981	103915
3a	AJ277268	12315
3a	AJ277269	12315
3a	AJ495841	12305
3a	Y16926	12305
3a	AJ296154	12305
3A	X80059	12078
3A	AF335006	173292
3A	AF335007	161729
3A	AF335008	35292
3A	AF335009	12123
3A	AF335010	12122
3A	AF335011	12122
3A	AF335012	12122
3A	AF335013	35292
3A	AF335014	12111
3A	AF335015	110195
3a	AJ276481	255721
3a	AF198103	12305
3a	NC_001440	12305
3a	AY338732	11120
3a	NC_003836	12315
3a	AY429432	12305
3a	AY429437	12305
3A	L17465	106582
3a	NC_004122	188141
3A	NC_001897	195054
3a	AB176847	12305

Text2Knowledge ... Yong Huang 2002