Barstar

Available protein structures:
Pfam	structures / ECOD
PDB	RCSB PDB; PDBe; PDBj
PDBsum	structure summary
PDB	1b2sD:2-89 1bgsG:2-89 1x1wD:2-89 1x1xD:2-89 1brsD:2-89 1b27F:2-89 1bta :2-89 1ab7 :2-89 1b3sE:2-89 1b2uF:2-89 1x1yE:2-89 1x1uE:2-89 1ay7B:2-89 1a19B:2-89 1btb :2-89 1l1kA:2-20

Barstar (barnase inhibitor)
Barstar (barnase inhibitor)
	The tightly bound complex between barstar and barnase, the ribonuclease barstar inhibits. Barstar is colored by secondary structure and barnase is colored in blue.
Identifiers
Symbol	Barstar
Pfam	PF01337
InterPro	IPR000468
SCOP2	1brs / SCOPe / SUPFAM
Pfam
Available protein structures:
Pfam	structures / ECOD
PDB	RCSB PDB; PDBe; PDBj
PDBsum	structure summary
PDB	1b2sD:2-89 1bgsG:2-89 1x1wD:2-89 1x1xD:2-89 1brsD:2-89 1b27F:2-89 1bta :2-89 1ab7 :2-89 1b3sE:2-89 1b2uF:2-89 1x1yE:2-89 1x1uE:2-89 1ay7B:2-89 1a19B:2-89 1btb :2-89 1l1kA:2-20

Barstar is a small protein synthesized by the bacterium Bacillus amyloliquefaciens. Its function is to inhibit the ribonuclease activity of its binding partner barnase, with which it forms an extraordinarily tightly bound complex within the cell until barnase is secreted. Expression of barstar is necessary to counter the lethal effect of expressed active barnase. The structure of the barnase-barnstar complex is known.

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