1L1C

Structure of the LicT Bacterial Antiterminator Protein in Complex with its RNA Target

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
B [auth A]	d1l1ca_	All beta proteins	GroES-like	SacY-like RNA-binding domain	BglG-like antiterminator proteins	LicT	(Bacillus subtilis ) [TaxId: 1423 ],	SCOPe (2.08)
C [auth B]	d1l1cb_	All beta proteins	GroES-like	SacY-like RNA-binding domain	BglG-like antiterminator proteins	LicT	(Bacillus subtilis ) [TaxId: 1423 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
B [auth A]	SCOP2 Family	BglG-like antiterminator proteins	8028570	4001788	SCOP2 (2022-06-29)
B [auth A]	SCOP2 Superfamily	SacY-like RNA-binding domain	8040949	3000384	SCOP2 (2022-06-29)
C [auth B]	SCOP2B Superfamily	SacY-like RNA-binding domain	8040949	3000384	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B [auth A]	CAT_RBD	e1l1cA1	A: beta barrels	X: GroES-like	H: SacY-like RNA-binding domain (From Topology)	T: SacY-like RNA-binding domain	F: CAT_RBD	ECOD (1.6)
C [auth B]	CAT_RBD	e1l1cB1	A: beta barrels	X: GroES-like	H: SacY-like RNA-binding domain (From Topology)	T: SacY-like RNA-binding domain	F: CAT_RBD	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B [auth A]	2.30.24.10	Mainly Beta	Roll	Transcription Regulation, Sacy	Chain A	CATH (4.3.0)
C [auth B]	2.30.24.10	Mainly Beta	Roll	Transcription Regulation, Sacy	Chain A	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
B [auth A], C [auth B]	PF03123	CAT RNA binding domain (CAT_RBD)	CAT RNA binding domain	This RNA binding domain is found at the amino terminus of transcriptional antitermination proteins such as BglG, SacY and LicT. These proteins control the expression of sugar metabolising operons in Gram+ and Gram- bacteria. This domain has been call ...	This RNA binding domain is found at the amino terminus of transcriptional antitermination proteins such as BglG, SacY and LicT. These proteins control the expression of sugar metabolising operons in Gram+ and Gram- bacteria. This domain has been called the CAT (Co-AntiTerminator) domain. It binds as a dimer [1] to short Ribonucleotidic Anti-Terminator (RAT) hairpin, each monomer interacting symmetrically with both strands of the RAT hairpin [4]. In the full-length protein, CAT is followed by two phosphorylatable PTS regulation domains (Pfam:PF00874) that modulate the RNA binding activity of CAT. Upon activation, the dimeric proteins bind to RAT targets in the nascent mRNA, thereby preventing abortive dissociation of the RNA polymerase from the DNA template [2].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth C]	licT mRNA antiterminator hairpin	-	-	-
B [auth A], C [auth B]	Transcription antiterminator licT	RNA binding binding organic cyclic compound binding nucleic acid binding	regulation of cellular process positive regulation of macromolecule biosynthetic process regulation of primary metabolic process nucleobase-containing compound metabolic process positive regulation of metabolic process DNA-templated transcription regulation of RNA metabolic process organic substance biosynthetic process positive regulation of macromolecule metabolic process regulation of nucleobase-containing compound metabolic process regulation of biological process positive regulation of nucleobase-containing compound metabolic process cellular metabolic process primary metabolic process regulation of cellular process positive regulation of macromolecule biosynthetic process regulation of primary metabolic process nucleobase-containing compound metabolic process positive regulation of metabolic process DNA-templated transcription regulation of RNA metabolic process organic substance biosynthetic process positive regulation of macromolecule metabolic process regulation of nucleobase-containing compound metabolic process regulation of biological process positive regulation of nucleobase-containing compound metabolic process cellular metabolic process primary metabolic process regulation of cellular metabolic process positive regulation of RNA metabolic process organic cyclic compound metabolic process regulation of gene expression biosynthetic process organic cyclic compound biosynthetic process metabolic process regulation of macromolecule biosynthetic process macromolecule metabolic process regulation of DNA-templated transcription regulation of metabolic process positive regulation of DNA-templated transcription cellular biosynthetic process positive regulation of biological process RNA metabolic process positive regulation of cellular metabolic process RNA biosynthetic process nucleic acid biosynthetic process organic substance metabolic process positive regulation of biosynthetic process positive regulation of cellular process regulation of RNA biosynthetic process regulation of biosynthetic process biological regulation regulation of macromolecule metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process regulation of cellular biosynthetic process positive regulation of RNA biosynthetic process cellular process positive regulation of cellular biosynthetic process	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
B [auth A], C [auth B]	IPR004341	CAT RNA-binding domain	Domain
B [auth A], C [auth B]	IPR036650	CAT RNA-binding domain superfamily	Homologous Superfamily
B [auth A], C [auth B]	IPR011608	PRD domain	Domain
B [auth A], C [auth B]	IPR036634	PRD domain superfamily	Homologous Superfamily
B [auth A], C [auth B]	IPR001550	Transcription antiterminator, conserved site	Conserved Site

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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 R01GM133198.