FB2025_05 , released December 11, 2025

General Information
Term	mediator complex assembly	ID (Ontology)	GO:0036034 (Gene Ontology)
Definition	The aggregation, arrangement and bonding together of a set of components to form a mediator complex. The mediator complex is a protein complex that interacts with the carboxy-terminal domain of the largest subunit of RNA polymerase II and plays an active role in transducing the signal from a transcription factor to the transcriptional machinery. The Saccharomyces complex contains several identifiable subcomplexes: a head domain comprising Srb2, -4, and -5, Med6, -8, and -11, and Rox3 proteins; a middle domain comprising Med1, -4, and -7, Nut1 and -2, Cse2, Rgr1, Soh1, and Srb7 proteins; a tail consisting of Gal11p, Med2p, Pgd1p, and Sin4p; and a regulatory subcomplex comprising Ssn2, -3, and -8, and Srb8 proteins. Metazoan mediator complexes have similar modular structures and include homologs of yeast Srb and Med proteins.[ PubMed:17641689 ]
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General Information

Term

mediator complex assembly

ID (Ontology)

GO:0036034 (Gene Ontology)

Definition

The aggregation, arrangement and bonding together of a set of components to form a mediator complex. The mediator complex is a protein complex that interacts with the carboxy-terminal domain of the largest subunit of RNA polymerase II and plays an active role in transducing the signal from a transcription factor to the transcriptional machinery. The Saccharomyces complex contains several identifiable subcomplexes: a head domain comprising Srb2, -4, and -5, Med6, -8, and -11, and Rox3 proteins; a middle domain comprising Med1, -4, and -7, Nut1 and -2, Cse2, Rgr1, Soh1, and Srb7 proteins; a tail consisting of Gal11p, Med2p, Pgd1p, and Sin4p; and a regulatory subcomplex comprising Ssn2, -3, and -8, and Srb8 proteins. Metazoan mediator complexes have similar modular structures and include homologs of yeast Srb and Med proteins.[ PubMed:17641689 ]

Comment

Links to External Ontologies

QuickGO data AmiGO data

Annotations

Records annotated with this term OR any of its CHILD TERMS

Full annotation statements including this term (annotations to child terms are NOT included), and relevant FlyBase records

No relevant statements available

cellular component assembly______________ protein-containing complex organization__| protein-containing complex assembly |__mediator complex assembly |__regulation of mediator complex assembly |__negative regulation of mediator complex assembly |__positive regulation of mediator complex assembly

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