Annotations: 9E70

Human XRN1 with Adenosine-3',5'-Bisphosphate (pAp) Bound

External Resource: Annotation

Domain Annotation: ECOD Classification
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Flavodoxin_1	e9e70A01	A: a/b three-layered sandwiches	X: ATP-grasp_6	H: ATP-grasp_6	T: ATP-grasp_6	F: Flavodoxin_1	ECOD (v294.1)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF17846	Xrn1 helical domain (XRN_M)	Xrn1 helical domain	This helical domain is part of the Xrn1 catalytic core [1]. Xrn1 is a cytoplasmic 5'-3' exonuclease that degrades decapped mRNAs.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	5'-3' exoribonuclease 1	5'-3' RNA exonuclease activity 5'-3' exonuclease activity catalytic activity, acting on RNA catalytic activity, acting on a nucleic acid RNA exonuclease activity, producing 5'-phosphomonoesters RNA exonuclease activity RNA nuclease activity hydrolase activity hydrolase activity, acting on ester bonds nuclease activity exonuclease activity catalytic activity RNA binding binding 5'-3' RNA exonuclease activity 5'-3' exonuclease activity catalytic activity, acting on RNA catalytic activity, acting on a nucleic acid RNA exonuclease activity, producing 5'-phosphomonoesters RNA exonuclease activity RNA nuclease activity hydrolase activity hydrolase activity, acting on ester bonds nuclease activity exonuclease activity catalytic activity RNA binding binding nucleic acid binding DNA binding G-quadruplex DNA binding telomerase RNA binding G-quadruplex RNA binding	regulation of cellular process catabolic process negative regulation of biological process RNA metabolic process macromolecule catabolic process nucleobase-containing compound metabolic process negative regulation of cellular process RNA catabolic process negative regulation of macromolecule metabolic process regulation of biosynthetic process mRNA catabolic process nuclear-transcribed mRNA catabolic process regulation of biological process negative regulation of metabolic process regulation of cellular process catabolic process negative regulation of biological process RNA metabolic process macromolecule catabolic process nucleobase-containing compound metabolic process negative regulation of cellular process RNA catabolic process negative regulation of macromolecule metabolic process regulation of biosynthetic process mRNA catabolic process nuclear-transcribed mRNA catabolic process regulation of biological process negative regulation of metabolic process biological regulation primary metabolic process regulation of macromolecule metabolic process gene expression macromolecule biosynthetic process mRNA metabolic process nucleic acid metabolic process nucleobase-containing compound catabolic process regulation of gene expression negative regulation of gene expression biosynthetic process negative regulation of biosynthetic process negative regulation of macromolecule biosynthetic process nucleic acid catabolic process regulation of macromolecule biosynthetic process metabolic process cellular process macromolecule metabolic process regulation of metabolic process protein biosynthetic process regulation of primary metabolic process post-transcriptional regulation of gene expression negative regulation of translation protein metabolic process negative regulation of protein metabolic process regulation of protein metabolic process translation regulation of translation response to ketone response to lipid response to stimulus response to chemical response to oxygen-containing compound response to testosterone RNA surveillance nuclear RNA surveillance nuclear mRNA surveillance cellular response to nitrogen compound cellular response to stimulus response to nitrogen compound response to purine-containing compound cellular response to oxygen-containing compound cellular response to chemical stimulus response to puromycin cellular response to puromycin histone mRNA catabolic process histone mRNA metabolic process negative regulation of telomere maintenance telomere organization negative regulation of telomere maintenance via telomerase regulation of DNA biosynthetic process RNA-templated DNA biosynthetic process telomere maintenance via telomere lengthening negative regulation of chromosome organization negative regulation of nucleobase-containing compound metabolic process regulation of nucleobase-containing compound metabolic process negative regulation of cellular component organization DNA metabolic process regulation of chromosome organization regulation of telomere maintenance via telomere lengthening regulation of organelle organization telomere maintenance DNA biosynthetic process negative regulation of DNA biosynthetic process regulation of DNA metabolic process regulation of telomere maintenance regulation of cellular component organization negative regulation of telomere maintenance via telomere lengthening cellular component organization nucleic acid biosynthetic process cellular component organization or biogenesis telomere maintenance via telomerase chromosome organization nucleobase-containing compound biosynthetic process regulation of telomere maintenance via telomerase organelle organization negative regulation of organelle organization negative regulation of DNA metabolic process rRNA catabolic process rRNA metabolic process response to cycloheximide response to alcohol cellular response to alcohol cellular response to cycloheximide cellular response to ketone	cellular anatomical structure membrane intracellular anatomical structure cytoplasm cytosol cell periphery plasma membrane somatodendritic compartment cell projection dendrite dendritic tree neuron projection plasma membrane bounded cell projection cell body cellular anatomical structure membrane intracellular anatomical structure cytoplasm cytosol cell periphery plasma membrane somatodendritic compartment cell projection dendrite dendritic tree neuron projection plasma membrane bounded cell projection cell body neuronal cell body cytoplasmic ribonucleoprotein granule intracellular membraneless organelle ribonucleoprotein granule intracellular organelle organelle membraneless organelle supramolecular complex P-body membrane-bounded organelle nucleus intracellular membrane-bounded organelle

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR016494	5'-3' exoribonuclease 1	Family
A, B	IPR040992	5'-3' exoribonuclease 1, D1 domain	Domain
A, B	IPR047007	5'-3' exoribonuclease 1, D1 domain superfamily	Homologous Superfamily
A, B	IPR047008	5'-3' exoribonuclease 1, SH3-like domain superfamily	Homologous Superfamily
A, B	IPR027073	5'-3' exoribonuclease	Family
A, B	IPR041106	Exoribonuclease Xrn1, D2/D3 domain	Domain
A, B	IPR041385	5'-3' exoribonuclease 1, SH3-like domain	Domain
A, B	IPR041412	Xrn1, helical domain	Domain
A, B	IPR004859	Xrn1, N-terminal	Domain

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B	: Q8IZH2	juvenile dermatomyositis osteosarcoma medulloblastoma spina bifida myopathy tuberculosis

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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.