Structure of PDB 1qaw Chain H

Receptor sequence

>1qawH (length=68) Species: 1422 (Geobacillus stearothermophilus)

SDFVVIKALEDGVNVIGLTRGADTRFHHSEKLDKGEVLIAQFTEHTSAIK
VRGKAYIQTRHGVIESEG

3D structure

• PDB: 1qaw Regulatory features of the trp operon and the crystal structure of the trp RNA-binding attenuation protein from Bacillus stearothermophilus.
• Chain: H
• Resolution: 2.5 Å

Interaction with ligand

Site #	Ligand	Ligand chain	Binding residues on receptor (original residue number in PDB)	Binding residues on receptor (residue number reindexed from 1)	Binding affinity
BS01	TRP	H	H34 A46 T49	H28 A40 T43	MOAD: Kd=7.5uM
BS02	TRP	H	T25 R26 G27 T30 S53	T19 R20 G21 T24 S47	MOAD: Kd=7.5uM

Gene Ontology

Molecular Function

• GO:0003723 RNA binding
• GO:0005515 protein binding
• GO:0042802 identical protein binding

Biological Process

• GO:0006353 DNA-templated transcription termination
• GO:0006355 regulation of DNA-templated transcription

External links

• PDB: RCSB:1qaw, PDBe:1qaw, PDBj:1qaw
• PDBsum: 1qaw
• PubMed: 10369778
• UniProt: Q9X6J6|MTRB_GEOSE Transcription attenuation protein MtrB (Gene Name=mtrB)