Annotations: 1DNK

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
C [auth A]	d1dnka_	Alpha and beta proteins (a+b)	DNase I-like	DNase I-like	DNase I-like	Deoxyribonuclease I	(Bos taurus ) [TaxId: 9913 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
C [auth A]	SCOP2B Superfamily	DNase I-like	8036570	3000957	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)
C [auth A]	Exo_endo_phos	e1dnkA1	A: a+b four layers	X: Carbon-nitrogen hydrolase-like	H: DNase I-like (From Topology)	T: DNase I-like	F: Exo_endo_phos	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
C [auth A]	3.60.10.10	Alpha Beta	4-Layer Sandwich	Deoxyribonuclease I	Chain A	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
C [auth A]	PF03372	Endonuclease/Exonuclease/phosphatase family (Exo_endo_phos)	Endonuclease/Exonuclease/phosphatase family	This large family of proteins includes magnesium dependent endonucleases and a large number of phosphatases involved in intracellular signalling [1]. This family includes: AP endonuclease proteins EC:4.2.99.18 e.g Swiss:P27695, DNase I proteins EC:3. ...	This large family of proteins includes magnesium dependent endonucleases and a large number of phosphatases involved in intracellular signalling [1]. This family includes: AP endonuclease proteins EC:4.2.99.18 e.g Swiss:P27695, DNase I proteins EC:3.1.21.1 e.g. Swiss:P24855, Synaptojanin an inositol-1,4,5-trisphosphate phosphatase EC:3.1.3.56 Swiss:O43426, Sphingomyelinase EC:3.1.4.12 Swiss:P11889 and Nocturnin Swiss:O35710.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth B]	DNA (5'-D(GPGPTPAPTPAP*C)-3')	-	-	-
B [auth C]	DNA (5'-D(GPGPTPAPTPAPCPC)-3')	-	-	-
C [auth A]	PROTEIN (DEOXYRIBONUCLEASE I (DNASE I) (E.C.3.1.21.1))	DNA binding binding nucleic acid binding cytoskeletal protein binding actin binding protein binding endonuclease activity catalytic activity, acting on a nucleic acid endodeoxyribonuclease activity, producing 5'-phosphomonoesters hydrolase activity DNA nuclease activity DNA endonuclease activity deoxyribonuclease I activity nuclease activity DNA binding binding nucleic acid binding cytoskeletal protein binding actin binding protein binding endonuclease activity catalytic activity, acting on a nucleic acid endodeoxyribonuclease activity, producing 5'-phosphomonoesters hydrolase activity DNA nuclease activity DNA endonuclease activity deoxyribonuclease I activity nuclease activity hydrolase activity, acting on ester bonds catalytic activity, acting on DNA endonuclease activity, active with either ribo- or deoxyribonucleic acids and producing 5'-phosphomonoesters catalytic activity	catabolic process primary metabolic process DNA metabolic process nucleic acid metabolic process macromolecule catabolic process nucleobase-containing compound catabolic process nucleobase-containing compound metabolic process DNA catabolic process nucleic acid catabolic process metabolic process cellular process macromolecule metabolic process regulation of immune effector process regulation of myeloid leukocyte mediated immunity catabolic process primary metabolic process DNA metabolic process nucleic acid metabolic process macromolecule catabolic process nucleobase-containing compound catabolic process nucleobase-containing compound metabolic process DNA catabolic process nucleic acid catabolic process metabolic process cellular process macromolecule metabolic process regulation of immune effector process regulation of myeloid leukocyte mediated immunity regulation of biological process regulation of cellular process neutrophil mediated cytotoxicity regulation of neutrophil mediated cytotoxicity biological regulation regulation of leukocyte mediated cytotoxicity leukocyte mediated cytotoxicity myeloid leukocyte mediated immunity immune effector process regulation of leukocyte mediated immunity neutrophil mediated immunity immune system process leukocyte mediated immunity regulation of immune system process regulation of cell killing cell killing apoptotic process cell death programmed cell death neutrophil activation multicellular organismal process response to stimulus immune response cell activation cell activation involved in immune response myeloid leukocyte activation myeloid cell activation involved in immune response leukocyte activation neutrophil activation involved in immune response leukocyte activation involved in immune response granulocyte activation regulation of defense response regulation of response to external stimulus defense response regulation of inflammatory response response to external stimulus regulation of response to stimulus response to stress regulation of response to stress regulation of acute inflammatory response inflammatory response acute inflammatory response	membrane-bounded organelle zymogen granule intracellular anatomical structure intracellular vesicle intracellular membrane-bounded organelle endomembrane system intracellular organelle cellular anatomical structure cytoplasmic vesicle organelle secretory granule secretory vesicle cytoplasm vesicle membrane-bounded organelle zymogen granule intracellular anatomical structure intracellular vesicle intracellular membrane-bounded organelle endomembrane system intracellular organelle cellular anatomical structure cytoplasmic vesicle organelle secretory granule secretory vesicle cytoplasm vesicle organelle envelope nuclear envelope nucleus extracellular region

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
C [auth A]	IPR005135	Endonuclease/exonuclease/phosphatase	Domain
C [auth A]	IPR018057	Deoxyribonuclease I, active site	Active Site
C [auth A]	IPR033125	Deoxyribonuclease I, conservied site	Conserved Site
C [auth A]	IPR016202	Deoxyribonuclease I	Family
C [auth A]	IPR036691	Endonuclease/exonuclease/phosphatase superfamily	Homologous Superfamily

Structure Motif Annotation: Mechanism and Catalytic Site Atlas M-CSA Database Homepage

Chains	Enzyme Name	Description	Catalytic Residues
C [auth A]	deoxyribonuclease I M-CSA #41	DNase I is a vertebrate enzyme that cleaves double stranded DNA to 5'-phosphodinucleotide and 5'-phospho-oligonucletide end-products. DNase I requires calcium and magnesium for full activity. It is a glycoprotein that causes single-stranded nicks on double-stranded DNA. DNase I shares structural homology to the Human Apurinic/Apyrimidinic endonuclease and Exonuclease III. These three enzymes also share similar mechanisms of DNA cleavage. The overall reaction has been created using poly dAMP to show the chemical reaction.	Defined by 7 residues: GLU:C-39 [auth A-39]TYR:C-76 [auth A-76]GLU:C-78 [auth A-78]HIS:C-134 [auth A-134]ASP:C-168 [auth A-168]ASP:C-212 [auth A-212]HIS:C-252 [auth A-252] \| Explore in 3D: M-CSA Motif Definition Search M-CSA Motif EC: 3.1.21.1 (UniProt) Search M-CSA Motif + EC 3.1.21.1

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.