Your Query returns 10 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
Mapk11NM_01116110090P38b    Sapk2    p38-2    Prkm11    Sapk2b    p38beta    p38beta2   
MAPK11BC0279339606PRKM11    P38BETA2    P38B    SAPK2B    SAPK2    p38-2    p38Beta   
MAPK11AL0223289606
MAPK11NM_0027519606P38B    SAPK2    p38-2    PRKM11    SAPK2B    p38Beta    P38BETA2   
MAPK11NM_1389939606P38B    SAPK2    p38-2    PRKM11    SAPK2B    p38Beta    P38BETA2   
Mapk11NT_03962110090
Mapk11BC05721110090P38b    Sapk2    p38-2    Sapk2b    p38beta    p38beta2   
Mapk11BC06473710090P38b    Sapk2    p38-2    Sapk2b    p38beta    p38beta2   
MAPK11AY33577732630
MAPK11NT_0191979606

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

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Text2Knowledge ... Yong Huang 2002