Your Query returns 11 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
H2B.1NM_0035289606H2B    GL105    H2B/q    H2BFQ    HIST2H2BE   
H2B.1NM_0035269606H2B/l    H2BFL    dJ221C16.3    HIST1H2BC   
H2B.1NM_0210629606H2B/f    H2BFF    HIST1H2BB   
H2B.1NT_0075929606H2B/f    H2BFF    HIST1H2BB   
H2B.1NT_0075929606H2B/l    H2BFL    dJ221C16.3    HIST1H2BC   
H2B.1NG_0013359606H2B/f    H2BFF    HIST1H2BB   
H2B.1NG_0013359606H2B/l    H2BFL    dJ221C16.3    HIST1H2BC   
H2B.1M607509606
H2B.1M607519606
H2B.1M607569606
H2B.1X571279606

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

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Text2Knowledge ... Yong Huang 2002