Annotations: 4ATB

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	DZF_C	e4atbA2	A: alpha arrays	X: HhH/H2TH	H: SAM/DNA-glycosylase	T: PAP/OAS1 substrate-binding domain	F: DZF_C	ECOD (1.6)
A	DZF_N	e4atbA1	A: a+b three layers	X: Nucleotidyltransferase-like	H: Nucleotidyltransferase (From Topology)	T: Nucleotidyltransferase	F: DZF_N	ECOD (1.6)
C	DZF_C	e4atbC2	A: alpha arrays	X: HhH/H2TH	H: SAM/DNA-glycosylase	T: PAP/OAS1 substrate-binding domain	F: DZF_C	ECOD (1.6)
C	DZF_N	e4atbC1	A: a+b three layers	X: Nucleotidyltransferase-like	H: Nucleotidyltransferase (From Topology)	T: Nucleotidyltransferase	F: DZF_N	ECOD (1.6)
B	DZF_C	e4atbB3	A: alpha arrays	X: HhH/H2TH	H: SAM/DNA-glycosylase	T: PAP/OAS1 substrate-binding domain	F: DZF_C	ECOD (1.6)
B	DZF_N	e4atbB2	A: a+b three layers	X: Nucleotidyltransferase-like	H: Nucleotidyltransferase (From Topology)	T: Nucleotidyltransferase	F: DZF_N	ECOD (1.6)
D	DZF_C	e4atbD5	A: alpha arrays	X: HhH/H2TH	H: SAM/DNA-glycosylase	T: PAP/OAS1 substrate-binding domain	F: DZF_C	ECOD (1.6)
D	DZF_N	e4atbD6	A: a+b three layers	X: Nucleotidyltransferase-like	H: Nucleotidyltransferase (From Topology)	T: Nucleotidyltransferase	F: DZF_N	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.10.1410.40	Mainly Alpha	Orthogonal Bundle	Poly(a)-polymerase, middle domain		CATH (4.3.0)
A	3.30.460.10	Alpha Beta	2-Layer Sandwich	Beta Polymerase	domain 2	CATH (4.3.0)
C	1.10.1410.40	Mainly Alpha	Orthogonal Bundle	Poly(a)-polymerase, middle domain		CATH (4.3.0)
C	3.30.460.10	Alpha Beta	2-Layer Sandwich	Beta Polymerase	domain 2	CATH (4.3.0)
B	1.10.1410.40	Mainly Alpha	Orthogonal Bundle	Poly(a)-polymerase, middle domain		CATH (4.3.0)
B	3.30.460.10	Alpha Beta	2-Layer Sandwich	Beta Polymerase	domain 2	CATH (4.3.0)
D	1.10.1410.40	Mainly Alpha	Orthogonal Bundle	Poly(a)-polymerase, middle domain		CATH (4.3.0)
D	3.30.460.10	Alpha Beta	2-Layer Sandwich	Beta Polymerase	domain 2	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, C	PF20965	DZF C-terminal domain (DZF_C)	DZF C-terminal domain	The function of this domain is unknown [1]. It is usually found in combination with Pfam:PF07528.	Domain
A, C	PF07528	DZF N-terminal domain (DZF_N)	DZF N-terminal domain	The function of this domain is unknown [1]. It is often found associated with Pfam:PF00098 or Pfam:PF00035. This domain has been predicted to belong to the nucleotidyltransferase superfamily [2].	Domain
B, D	PF20965	DZF C-terminal domain (DZF_C)	DZF C-terminal domain	The function of this domain is unknown [1]. It is usually found in combination with Pfam:PF07528.	Domain
B, D	PF07528	DZF N-terminal domain (DZF_N)	DZF N-terminal domain	The function of this domain is unknown [1]. It is often found associated with Pfam:PF00098 or Pfam:PF00035. This domain has been predicted to belong to the nucleotidyltransferase superfamily [2].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, C	INTERLEUKIN ENHANCER-BINDING FACTOR 2	DNA binding binding organic cyclic compound binding nucleic acid binding RNA binding double-stranded RNA 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	intracellular anatomical structure cytoplasm cellular anatomical entity cytosol membrane-bounded organelle nucleus membrane-enclosed lumen intracellular membrane-bounded organelle nucleolus intracellular organelle lumen intracellular organelle organelle lumen organelle intracellular non-membrane-bounded organelle intracellular anatomical structure cytoplasm cellular anatomical entity cytosol membrane-bounded organelle nucleus membrane-enclosed lumen intracellular membrane-bounded organelle nucleolus intracellular organelle lumen intracellular organelle organelle lumen organelle intracellular non-membrane-bounded organelle nuclear lumen non-membrane-bounded organelle protein-containing complex ribonucleoprotein complex nucleoplasm
B, D	INTERLEUKIN ENHANCER-BINDING FACTOR 3	DNA binding binding organic cyclic compound binding nucleic acid binding protein binding virus receptor activity exogenous protein binding RNA binding double-stranded RNA binding single-stranded RNA binding mRNA 3'-UTR binding mRNA 3'-UTR AU-rich region binding mRNA binding enzyme binding	regulation of cellular process negative regulation of biological process negative regulation of cellular metabolic process regulation of primary metabolic process negative regulation of RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription regulation of RNA metabolic process organic substance biosynthetic process negative regulation of nucleobase-containing compound metabolic process regulation of nucleobase-containing compound metabolic process negative regulation of DNA-templated transcription regulation of biological process cellular metabolic process regulation of cellular process negative regulation of biological process negative regulation of cellular metabolic process regulation of primary metabolic process negative regulation of RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription regulation of RNA metabolic process organic substance biosynthetic process negative regulation of nucleobase-containing compound metabolic process regulation of nucleobase-containing compound metabolic process negative regulation of DNA-templated transcription regulation of biological process cellular metabolic process negative regulation of metabolic process primary metabolic process regulation of cellular metabolic process negative regulation of cellular biosynthetic process organic cyclic compound metabolic process regulation of gene expression biosynthetic process negative regulation of macromolecule 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 negative regulation of RNA metabolic process cellular biosynthetic process RNA metabolic process RNA biosynthetic process nucleic acid biosynthetic process organic substance metabolic process negative regulation of cellular process regulation of RNA biosynthetic process negative regulation of macromolecule metabolic 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 negative regulation of biosynthetic process cellular process organonitrogen compound biosynthetic process post-transcriptional regulation of gene expression negative regulation of translation protein metabolic process negative regulation of protein metabolic process organonitrogen compound metabolic process regulation of protein metabolic process translation negative regulation of gene expression regulation of translation protein phosphorylation phosphorylation macromolecule modification phosphate-containing compound metabolic process protein modification process phosphorus metabolic process positive regulation of macromolecule biosynthetic process positive regulation of metabolic process positive regulation of macromolecule metabolic process positive regulation of nucleobase-containing compound metabolic process positive regulation of RNA metabolic process positive regulation of DNA-templated transcription positive regulation of biological process positive regulation of cellular metabolic process positive regulation of biosynthetic process positive regulation of cellular process positive regulation of RNA biosynthetic process positive regulation of cellular biosynthetic process negative regulation of viral genome replication viral life cycle negative regulation of viral process regulation of viral process regulation of viral life cycle viral genome replication viral process regulation of viral genome replication biological process involved in interspecies interaction between organisms response to stimulus response to other organism defense response defense response to symbiont response to external stimulus response to biotic stimulus defense response to virus defense response to other organism response to stress response to external biotic stimulus response to virus	membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle nucleus membrane-enclosed lumen nucleolus intracellular organelle lumen organelle lumen intracellular non-membrane-bounded organelle membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle nucleus membrane-enclosed lumen nucleolus intracellular organelle lumen organelle lumen intracellular non-membrane-bounded organelle nuclear lumen non-membrane-bounded organelle protein-containing complex ribonucleoprotein complex nucleoplasm

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, C	IPR006561	DZF domain	Domain
A, C	IPR043519	Nucleotidyltransferase superfamily	Homologous Superfamily
A, C	IPR049402	DZF domain, C-terminal	Domain
A, C	IPR049401	DZF domain, N-terminal	Domain
B, D	IPR033099	Interleukin enhancer-binding factor 3, first DSRM	Domain
B, D	IPR049402	DZF domain, C-terminal	Domain
B, D	IPR049401	DZF domain, N-terminal	Domain
B, D	IPR006561	DZF domain	Domain
B, D	IPR043519	Nucleotidyltransferase superfamily	Homologous Superfamily
B, D	IPR014720	Double-stranded RNA-binding domain	Domain

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.