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- ***************
- * Bromodomain *
- ***************
-
- The bromodomain [1,2] is a conserved region of 61 to 63 amino acids found in
- the following proteins:
-
- - Higher eukaryotes transcription initiation factor TFIID 250 Kd subunit
- (TBP-associated factor p250) (gene CCG1). P250 associated with the TFIID
- TATA-box binding protein and seems essential for progression of the G1
- phase of the cell cycle.
- - Human RING3, a protein of unknown function encoded in the MHC class II
- locus.
- - Drosophila female sterile homeotic protein (gene fsh), required maternally
- for proper expression of other homeotic genes involved in pattern
- formation, such as Ubx.
- - Drosophila brahma protein (gene brm), a protein required for the activation
- of multiple homeotic genes.
- - Yeast GCN5 [3], a general transcriptional activator operating in concert
- with certain other DNA-binding transcriptional activators, such as GCN4 or
- HAP2/3/4.
- - Yeast NPS1/STH1, involved in G(2) phase control in mitosis.
- - Yeast SNF2/SWI2, a transcriptional activator that appears to form a complex
- with the SNF5 and SNF6 proteins.
- - Yeast SPT7, a transcriptional activator of Ty elements and possibly other
- genes.
- - Caenorhabditis elegans hypothetical protein R10E11.1.
-
- These proteins contain either one (brm, GCN5, NPS1, SNF2 and SPT7) or two
- (CCG1, fsh, and RING3) copies of the bromodomain.
-
- The function of this domain is not yet known but it could be involved in
- protein-protein interaction and be important for the assembly or activity of
- multicomponent complexes involved in transcription activation.
-
- The consensus pattern that we have developed spans all but the last two C-
- terminal residues of the bromodomain.
-
- -Consensus pattern: [STA]-x(2)-F-x(4)-[DNS]-x(5,7)-[DN]-Y-[HFY]-x-[LIVMF](2)-
- x(3)-[LIVM]-x(4)-[LIVM]-x(3)-[LIVMC]-x(4)-Y-x(12)-[LIVM]-
- x(2)-N-[SAC]-x(2)-Y-N
- -Sequences known to belong to this class detected by the pattern: ALL.
- -Other sequence(s) detected in SWISS-PROT: NONE.
- -Last update: June 1994 / Text revised.
-
- [ 1] Haynes S.R., Doolard C., Winston F., Beck S., Trowsdale J., Dawid I.B.
- Nucleic Acids Res. 20:2693-2603(1992).
- [ 2] Tamkun J.W., Deuring R., Scott M.P., Kissinger M., Pattatucci A.M.,
- Kaufman T.C., Kennison J.A.
- Cell 68:561-572(1992).
- [ 3] Georgakopoulos T., Thireos G.
- EMBO J. 11:4145-4152(1992).
-