Annotations: 4MTN

Crystal structure of transcription termination factor NusA from Planctomyces limnophilus DSM 3776

External Resource: Annotation

Domain Annotation: ECOD Classification
Domain Annotation: CATH
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	PHP	e4mtnA10	A: beta barrels	X: Fusion glycoprotein F2	H: MoeA-I/Ornithine decarboxylase-C/Reverse ferredoxin-like domain in RNA-polymerase	T: MoeA-I/Ornithine decarboxylase-C/Reverse ferredoxin-like domain in RNA-polymerase	F: PHP	ECOD (v294.2)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.30.1480.10	Alpha Beta	2-Layer Sandwich	N Utilization Substance Protein A	Chain:P	CATH (4.3.0)
A	2.40.50.140	Mainly Beta	Beta Barrel	OB fold (Dihydrolipoamide Acetyltransferase, E2P)	Nucleic acid-binding proteins	CATH (4.3.0)
A	3.30.300.20	Alpha Beta	2-Layer Sandwich	GMP Synthetase	Chain A, domain 3	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF13184	NusA-like first KH domain (KH_NusA_1st)	NusA-like first KH domain	This entry represents the first K homology (KH) domain found in NusA transcription termination factors. KH domains bind RNA and can function in RNA recognition [1]. NusA binds to RNA polymerase alpha subunit and promotes termination at certain RNA ha ...	This entry represents the first K homology (KH) domain found in NusA transcription termination factors. KH domains bind RNA and can function in RNA recognition [1]. NusA binds to RNA polymerase alpha subunit and promotes termination at certain RNA hairpin structures [2]. In prokaryotes, the N-terminal RNA polymerase-binding domain (NTD) is connected through a flexible hinge helix to three globular domains, the S1 and two K-homology (KH), KH1 and KH2. The KH domains of NusA belong to the type II KH RNA-binding domain superfamily [3].	Domain
A	PF26594	NusA-like second KH domain (KH_NusA_2nd)	NusA-like second KH domain	This entry represents the second K homology (KH) domain found in NusA transcription termination factors. KH domains bind RNA and can function in RNA recognition [1]. NusA binds to RNA polymerase alpha subunit and promotes termination at certain RNA h ...	This entry represents the second K homology (KH) domain found in NusA transcription termination factors. KH domains bind RNA and can function in RNA recognition [1]. NusA binds to RNA polymerase alpha subunit and promotes termination at certain RNA hairpin structures [2]. In prokaryotes, the N-terminal RNA polymerase-binding domain (NTD) is connected through a flexible hinge helix to three globular domains, the S1 and two K-homology (KH), KH1 and KH2. The KH domains of NusA belong to the type II KH RNA-binding domain superfamily [3].	Domain
A	PF14520	SAM-like Helix-hairpin-helix tandem (HHH_5)	SAM-like Helix-hairpin-helix tandem	This entry represents a SAM-like helix-hairpin-helix domain found in functionally diverse proteins involved in DNA repair, recombination, transcription termination etc. This domain has a fold that is structurally similar to SAM domains. It is compose ...	This entry represents a SAM-like helix-hairpin-helix domain found in functionally diverse proteins involved in DNA repair, recombination, transcription termination etc. This domain has a fold that is structurally similar to SAM domains. It is composed of two helix-hairpin-helix motifs which are known DNA interaction motifs.	Domain
A	PF08529	NusA N-terminal domain (NusA_N)	NusA N-terminal domain	This domain represents the RNA polymerase binding domain of NusA.	Domain
A	PF00575	S1 RNA binding domain (S1)	S1 RNA binding domain	The S1 domain occurs in a wide range of RNA associated proteins. It is structurally similar to cold shock protein which binds nucleic acids. The S1 domain has an OB-fold structure.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Transcription termination factor NusA	binding nucleoside phosphate binding nucleotide binding heterocyclic compound binding small molecule binding transcription regulator activity DNA-binding transcription factor activity RNA binding nucleic acid binding	negative regulation of termination of DNA-templated transcription regulation of cellular process negative regulation of biological process protein-containing complex disassembly positive regulation of macromolecule biosynthetic process regulation of protein-containing complex disassembly regulation of primary metabolic process negative regulation of RNA biosynthetic process nucleobase-containing compound metabolic process positive regulation of metabolic process DNA-templated transcription regulation of RNA metabolic process positive regulation of macromolecule metabolic process negative regulation of nucleobase-containing compound metabolic process negative regulation of termination of DNA-templated transcription regulation of cellular process negative regulation of biological process protein-containing complex disassembly positive regulation of macromolecule biosynthetic process regulation of protein-containing complex disassembly regulation of primary metabolic process negative regulation of RNA biosynthetic process nucleobase-containing compound metabolic process positive regulation of metabolic process DNA-templated transcription regulation of RNA metabolic process positive regulation of macromolecule metabolic process negative regulation of nucleobase-containing compound metabolic process regulation of nucleobase-containing compound metabolic process cellular component disassembly negative regulation of DNA-templated transcription regulation of biological process negative regulation of cellular component organization negative regulation of metabolic process primary metabolic process regulation of gene expression biosynthetic process negative regulation of macromolecule biosynthetic process regulation of termination of DNA-templated transcription regulation of macromolecule biosynthetic process metabolic process macromolecule metabolic process regulation of DNA-templated transcription regulation of metabolic process negative regulation of RNA metabolic process regulation of cellular component organization transcription antitermination positive regulation of biological process RNA metabolic process DNA-templated transcription termination RNA biosynthetic process cellular component organization nucleic acid biosynthetic process positive regulation of biosynthetic process negative regulation of protein-containing complex disassembly negative regulation of cellular process cellular component organization or biogenesis positive regulation of cellular process regulation of RNA biosynthetic process negative regulation of macromolecule metabolic process regulation of biosynthetic process protein-containing complex organization biological regulation regulation of macromolecule metabolic process gene expression nucleobase-containing compound biosynthetic process macromolecule biosynthetic process nucleic acid metabolic process positive regulation of gene expression negative regulation of biosynthetic process cellular process	cellular anatomical structure intracellular anatomical structure cytoplasm cytosol

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR036555	NusA, N-terminal domain superfamily	Homologous Superfamily
A	IPR003029	S1 domain	Domain
A	IPR013735	Transcription factor NusA, N-terminal	Domain
A	IPR059158	NusA, second KH domain, bacteria	Domain
A	IPR059258	Transcription factor NusA, bacteria	Family
A	IPR009019	K homology domain superfamily, prokaryotic type	Homologous Superfamily
A	IPR010213	Transcription factor NusA	Domain
A	IPR015946	K homology domain-like, alpha/beta	Homologous Superfamily
A	IPR025249	Transcription factor NusA, first KH domain	Domain
A	IPR030842	Transcription factor NusA, prokaryotes	Family
A	IPR058582	NusA-like, second KH domain	Domain
A	IPR012340	Nucleic acid-binding, OB-fold	Homologous Superfamily
A	IPR060101	SAM-like helix-hairpin-helix tandem	Domain
A	IPR010995	DNA repair Rad51/transcription factor NusA, alpha-helical	Homologous Superfamily

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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. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.