Your Query returns 14 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
K-rasNM_02128410090Ki-ras    Kras-2    MGC7141    Kras2   
K-rasBC00464210090Ki-ras    MGC7141    Kras2   
K-rasBC01020210090Ki-ras    MGC7141    Kras2   
K-rasY127158355
K-rasU620949615
K-rasU620899685
K-rasS429999615
K-rasM262619606
K-rasM549689606
K-RASS642619606
K-rasU7642510090
K-rasU7642610090
K-rasX7450210116
K-rasX532468355

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

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Text2Knowledge ... Yong Huang 2002