Your Query returns 4 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
HECHBC0009549606GAMMA    HP1-GAMMA    HP1Hs-gamma    CBX3   
HECHNM_0072769606GAMMA    HP1-GAMMA    HP1Hs-gamma    CBX3   
HECHNM_0165879606GAMMA    HP1-GAMMA    HP1Hs-gamma    CBX3   
HECHAF1366309606

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

Google

Text2Knowledge ... Yong Huang 2002