5NB9

Structure of the N-terminal domain of the Escherichia Coli ProQ RNA binding protein

External Resource: Annotation

Domain Annotation: ECOD Classification
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	ProQ	e5nb9A1	A: alpha arrays	X: Repressor of bacterial conjugation FinO (From Topology)	H: Repressor of bacterial conjugation FinO (From Topology)	T: Repressor of bacterial conjugation FinO	F: ProQ	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF04352	ProQ/FINO family (ProQ)	ProQ/FINO family	This family includes ProQ, which is required for full activation of the osmoprotectant transporter, ProP, in Escherichia coli. This family includes several bacterial fertility inhibition (FINO) proteins. The conjugative transfer of F-like plasmids is ...	This family includes ProQ, which is required for full activation of the osmoprotectant transporter, ProP, in Escherichia coli. This family includes several bacterial fertility inhibition (FINO) proteins. The conjugative transfer of F-like plasmids is repressed by FinO, an RNA binding protein. FinO interacts with the F-plasmid encoded traJ mRNA and its antisense RNA, FinP, stabilising FinP against endonucleolytic degradation and facilitating sense-antisense RNA recognition [2]. ProQ operates as an RNA-chaperone, binding RNA and bringing about both RNA strand-exchange and RNA duplexing. This suggests that in fact it does not regulate ProP transcription but rather regulates ProP translation through activity as an RNA-binding protein [3].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	RNA chaperone ProQ	RNA binding binding nucleic acid binding mRNA binding double-stranded RNA binding RNA strand-exchange activity single-stranded RNA binding mRNA 3'-UTR binding RNA strand annealing activity annealing activity	cellular response to stimulus cellular response to stress response to stimulus DNA damage response response to stress cellular process regulation of localization proline import across plasma membrane import into cell regulation of cellular process nitrogen compound transport carboxylic acid transmembrane transport transport regulation of proline import across plasma membrane cellular response to stimulus cellular response to stress response to stimulus DNA damage response response to stress cellular process regulation of localization proline import across plasma membrane import into cell regulation of cellular process nitrogen compound transport carboxylic acid transmembrane transport transport regulation of proline import across plasma membrane positive regulation of biological process amino acid transmembrane transport positive regulation of amine transport localization positive regulation of transmembrane transport regulation of amino acid transport regulation of amino acid transmembrane transport positive regulation of cellular process organic acid transmembrane transport regulation of biological process organic anion transport carboxylic acid transport regulation of transport import across plasma membrane biological regulation establishment of localization positive regulation of organic acid transport transmembrane transport organic acid transport amino acid transport amine transport regulation of amino acid import across plasma membrane regulation of transmembrane transport positive regulation of transport proline transmembrane transport positive regulation of amino acid transport positive regulation of proline import across plasma membrane regulation of organic acid transport amino acid import across plasma membrane regulation of amine transport response to osmotic stress signaling cellular response to chemical stress cellular response to osmotic stress intracellular signal transduction cellular response to environmental stimulus cell communication cellular response to chemical stimulus osmosensory signaling pathway response to chemical response to abiotic stimulus cellular response to abiotic stimulus signal transduction cellular response to salt stress cellular hyperosmotic salinity response response to salt stress hyperosmotic salinity response hyperosmotic response cellular hyperosmotic response cell aggregation biofilm formation biological process involved in intraspecies interaction between organisms single-species biofilm formation aggregation of unicellular organisms regulation of biosynthetic process regulation of macromolecule metabolic process gene expression macromolecule biosynthetic process post-transcriptional regulation of gene expression regulation of gene expression biosynthetic process regulation of macromolecule biosynthetic process metabolic process macromolecule metabolic process regulation of metabolic process	cellular anatomical structure intracellular anatomical structure cytoplasm cytosol

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR035236	RNA chaperone ProQ, C-terminal	Domain
A	IPR023529	RNA chaperone ProQ	Family
A	IPR036442	ProQ/FinO domain superfamily	Homologous Superfamily
A	IPR016103	ProQ/FinO domain	Domain

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.