Your Query returns 6 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
P-TEFbNG_0005817227CDK9    P-TEF    PTefb    CG5179    CT16479    p43 PITALRE   
P-TEFbNM_0578787227CDK9    P-TEF    PTefb    CG5179   
P-TEFbNM_0794037227dT    p124    CG6292    CycT   
P-TEFbNM_2063957227dT    p124    CG6292    CycT   
P-TEFbNT_0337787227CDK9    P-TEF    PTefb    CG5179   
P-TEFbNT_0374367227dT    p124    CG6292    CycT   

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

Google

Text2Knowledge ... Yong Huang 2002