Your Query returns 6 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
p38beta2NM_01116110090P38b    Sapk2    p38-2    Prkm11    Sapk2b    p38beta    Mapk11   
P38BETA2BC0279339606PRKM11    P38B    SAPK2B    SAPK2    p38-2    p38Beta    MAPK11   
P38BETA2NM_0027519606P38B    SAPK2    p38-2    PRKM11    SAPK2B    p38Beta    MAPK11   
P38BETA2NM_1389939606P38B    SAPK2    p38-2    PRKM11    SAPK2B    p38Beta    MAPK11   
p38beta2BC05721110090P38b    Sapk2    p38-2    Sapk2b    p38beta    Mapk11   
p38beta2BC06473710090P38b    Sapk2    p38-2    Sapk2b    p38beta    Mapk11   

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

Google

Text2Knowledge ... Yong Huang 2002