- Copper fist
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Copper fist domain 
Structure of a zinc domain conserved in yeast copper-regulated transcription factors.[1] Identifiers Symbol Copper fist Pfam PF00649 InterPro IPR001083 SMART SM00412 PROSITE PS50073 SCOP 1co4 Available protein structures: Pfam structures PDB RCSB PDB; PDBe PDBsum structure summary Copper fist is an N-terminal domain involved in copper-dependent DNA binding. It is named for its resemblance to a fist.
It can be found in some fungal transcription factors. These proteins activate the transcription of the metallothionein gene in response to copper. Metallothionein maintains copper levels in yeast. The copper fist domain is similar in structure to metallothionein itself, and on copper binding undergoes a large conformational change, which allows DNA binding.
External links
References
- ^ Turner RB, Smith DL, Zawrotny ME, Summers MF, Posewitz MC, Winge DR (July 1998). "Solution structure of a zinc domain conserved in yeast copper-regulated transcription factors". Nat. Struct. Biol. 5 (7): 551–5. doi:10.1038/805. PMID 9665167.
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