Your Query returns 26 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
ACT2NM_0029849606LAG1    Act-2    MIP1B    SCYA4    AT744.1    MIP-1-beta    CCL4    182284
ACT2NC_0011364932ARP2   
act2AF1009876687
act2U202345693
act2X167976239
act2AF254450158379
act2AF363529227086
act2AF363532168855
act2AF36353545111
act2AF36353745112
act2L765306769
ACT2M647294829
ACT2U419983702
ACT2U680603055
act2AF15625848563
act2AL1098324896SPAC630.03   
ACT2Z717814932
ACT2X615024932
ACT2AF24671555299
ACT2AF1111613708
act2AF36952529760
act2AF15625948563
act2AJ4961802822
act2AF482416156230
ACT2AY3057243635
act2NC_0034244896SPAC630.03   

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

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Text2Knowledge ... Yong Huang 2002