Annotations: 4CZX

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	Hemagglutinin	e4czxB01	A: a/b three-layered sandwiches	X: Rossmann-like	H: P-loop domains-related	T: ATPase domain of HSP90 chaperone/DNA topoisomerase II/histidine kinase	F: Hemagglutinin	ECOD (v294.1)
A	Tudor_2	e4czxA1	A: a/b three-layered sandwiches	X: Periplasmic binding protein-like II	H: Rubredoxin-related	T: Tetrapyrrole methylase C-terminal domain	F: Tudor_2	ECOD (v294.1)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	1.10.287.3700	Mainly Alpha	Orthogonal Bundle	Helix Hairpins		CATH (4.3.0)
A	2.130.10.10	Mainly Beta	7 Propeller	Methylamine Dehydrogenase	Chain H	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF20770	PAN2 N-terminal (PAN2_N)	PAN2 N-terminal	-	Repeat

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
B	PAB-DEPENDENT POLY(A)-SPECIFIC RIBONUCLEASE SUBUNIT PAN3	binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding cation binding transition metal ion binding zinc ion binding metal ion binding RNA binding poly(A) binding poly-purine tract binding nucleic acid binding single-stranded RNA binding	regulation of cellular process negative regulation of biological process regulation of primary metabolic process nucleobase-containing compound metabolic process positive regulation of metabolic process post-transcriptional regulation of gene expression regulation of RNA metabolic process positive regulation of macromolecule metabolic process regulation of nucleobase-containing compound metabolic process regulation of biological quality RNA catabolic process mRNA catabolic process regulation of biological process negative regulation of metabolic process regulation of cellular process negative regulation of biological process regulation of primary metabolic process nucleobase-containing compound metabolic process positive regulation of metabolic process post-transcriptional regulation of gene expression regulation of RNA metabolic process positive regulation of macromolecule metabolic process regulation of nucleobase-containing compound metabolic process regulation of biological quality RNA catabolic process mRNA catabolic process regulation of biological process negative regulation of metabolic process positive regulation of mRNA metabolic process primary metabolic process nucleobase-containing compound catabolic process nuclear-transcribed mRNA poly(A) tail shortening positive regulation of RNA metabolic process regulation of gene expression negative regulation of gene expression biosynthetic process negative regulation of macromolecule biosynthetic process nucleic acid catabolic process regulation of macromolecule biosynthetic process metabolic process macromolecule metabolic process regulation of metabolic process nuclear-transcribed mRNA catabolic process, deadenylation-dependent decay catabolic process positive regulation of biological process RNA metabolic process macromolecule catabolic process mRNA destabilization regulation of mRNA catabolic process negative regulation of cellular process positive regulation of cellular process negative regulation of macromolecule metabolic process regulation of biosynthetic process nuclear-transcribed mRNA catabolic process RNA destabilization biological regulation regulation of macromolecule metabolic process regulation of catabolic process gene expression macromolecule biosynthetic process mRNA metabolic process nucleic acid metabolic process positive regulation of catabolic process regulation of mRNA stability negative regulation of biosynthetic process positive regulation of mRNA catabolic process regulation of RNA stability cellular process regulation of mRNA metabolic process nucleobase-containing compound biosynthetic process mRNA processing RNA biosynthetic process nucleic acid biosynthetic process RNA processing	protein-containing complex cellular anatomical structure intracellular anatomical structure catalytic complex PAN complex cytoplasm exoribonuclease complex cytoplasmic ribonucleoprotein granule intracellular membraneless organelle ribonucleoprotein granule intracellular organelle organelle membraneless organelle supramolecular complex protein-containing complex cellular anatomical structure intracellular anatomical structure catalytic complex PAN complex cytoplasm exoribonuclease complex cytoplasmic ribonucleoprotein granule intracellular membraneless organelle ribonucleoprotein granule intracellular organelle organelle membraneless organelle supramolecular complex P-body
A	PAB-DEPENDENT POLY(A)-SPECIFIC RIBONUCLEASE SUBUNIT PAN2	binding nucleic acid binding 3'-5'-RNA exonuclease activity catalytic activity, acting on RNA catalytic activity, acting on a nucleic acid RNA exonuclease activity, producing 5'-phosphomonoesters 3'-5' exonuclease activity RNA exonuclease activity RNA nuclease activity hydrolase activity poly(A)-specific ribonuclease activity hydrolase activity, acting on ester bonds nuclease activity exonuclease activity binding nucleic acid binding 3'-5'-RNA exonuclease activity catalytic activity, acting on RNA catalytic activity, acting on a nucleic acid RNA exonuclease activity, producing 5'-phosphomonoesters 3'-5' exonuclease activity RNA exonuclease activity RNA nuclease activity hydrolase activity poly(A)-specific ribonuclease activity hydrolase activity, acting on ester bonds nuclease activity exonuclease activity catalytic activity cation binding ion binding metal ion binding small molecule binding	regulation of cellular process negative regulation of biological process regulation of primary metabolic process nucleobase-containing compound metabolic process positive regulation of metabolic process post-transcriptional regulation of gene expression regulation of RNA metabolic process positive regulation of macromolecule metabolic process regulation of nucleobase-containing compound metabolic process regulation of biological quality RNA catabolic process mRNA catabolic process regulation of biological process negative regulation of metabolic process regulation of cellular process negative regulation of biological process regulation of primary metabolic process nucleobase-containing compound metabolic process positive regulation of metabolic process post-transcriptional regulation of gene expression regulation of RNA metabolic process positive regulation of macromolecule metabolic process regulation of nucleobase-containing compound metabolic process regulation of biological quality RNA catabolic process mRNA catabolic process regulation of biological process negative regulation of metabolic process positive regulation of mRNA metabolic process primary metabolic process nucleobase-containing compound catabolic process nuclear-transcribed mRNA poly(A) tail shortening positive regulation of RNA metabolic process regulation of gene expression negative regulation of gene expression biosynthetic process negative regulation of macromolecule biosynthetic process nucleic acid catabolic process regulation of macromolecule biosynthetic process metabolic process macromolecule metabolic process regulation of metabolic process nuclear-transcribed mRNA catabolic process, deadenylation-dependent decay catabolic process positive regulation of biological process RNA metabolic process macromolecule catabolic process mRNA destabilization regulation of mRNA catabolic process negative regulation of cellular process positive regulation of cellular process negative regulation of macromolecule metabolic process regulation of biosynthetic process nuclear-transcribed mRNA catabolic process RNA destabilization biological regulation regulation of macromolecule metabolic process regulation of catabolic process gene expression macromolecule biosynthetic process mRNA metabolic process nucleic acid metabolic process positive regulation of catabolic process regulation of mRNA stability negative regulation of biosynthetic process positive regulation of mRNA catabolic process regulation of RNA stability cellular process regulation of mRNA metabolic process nucleobase-containing compound biosynthetic process mRNA processing RNA biosynthetic process nucleic acid biosynthetic process RNA processing	protein-containing complex cellular anatomical structure intracellular anatomical structure catalytic complex PAN complex cytoplasm exoribonuclease complex cytoplasmic ribonucleoprotein granule intracellular membraneless organelle ribonucleoprotein granule intracellular organelle organelle membraneless organelle supramolecular complex protein-containing complex cellular anatomical structure intracellular anatomical structure catalytic complex PAN complex cytoplasm exoribonuclease complex cytoplasmic ribonucleoprotein granule intracellular membraneless organelle ribonucleoprotein granule intracellular organelle organelle membraneless organelle supramolecular complex P-body

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
B	IPR030844	PAN2-PAN3 deadenylation complex subunit PAN3	Family
B	IPR000571	Zinc finger, CCCH-type	Domain
B	IPR011009	Protein kinase-like domain superfamily	Homologous Superfamily
B	IPR041332	Pan3, C-terminal knob domain	Domain
A	IPR036397	Ribonuclease H superfamily	Homologous Superfamily
A	IPR030843	PAN2-PAN3 deadenylation complex catalytic subunit PAN2	Family
A	IPR028881	PAN2, UCH domain	Domain
A	IPR028889	Ubiquitin specific protease UPS, catalytic domain	Domain
A	IPR048841	PAN2-PAN3 deadenylation complex catalytic subunit PAN2, N-terminal	Domain
A	IPR011047	Quinoprotein alcohol dehydrogenase-like superfamily	Homologous Superfamily
A	IPR013520	Ribonuclease H-like domain	Domain
A	IPR038765	Papain-like cysteine peptidase superfamily	Homologous Superfamily
A	IPR050785	PAN2-PAN3 complex catalytic subunit	Family
A	IPR015943	WD40/YVTN repeat-like-containing domain superfamily	Homologous Superfamily
A	IPR012337	Ribonuclease H-like superfamily	Homologous Superfamily

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.