Annotations: 6CE1

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d6ce1a2	All beta proteins	Common fold of diphtheria toxin/transcription factors/cytochrome f	Peptidylarginine deiminase Pad4, middle domain	automated matches	automated matches	Human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
A	d6ce1a1	All beta proteins	Cupredoxin-like	Cupredoxins	automated matches	automated matches	Human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
A	d6ce1a3	Alpha and beta proteins (a+b)	Pentein, beta/alpha-propeller	Pentein	automated matches	automated matches	Human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	PAD_M	e6ce1A3	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Common fold of diphtheria toxin/transcription factors/cytochrome f	F: PAD_M	ECOD (1.6)
A	PAD_N	e6ce1A2	A: beta sandwiches	X: Cupredoxin-like	H: Cupredoxin-related (From Topology)	T: Cupredoxin-related	F: PAD_N	ECOD (1.6)
A	PAD,PAD_M	e6ce1A4	A: a+b duplicates or obligate multimers	X: Pentein (From Topology)	H: Pentein (From Topology)	T: Pentein	F: PAD,PAD_M	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.60.40.1860	Mainly Beta	Sandwich	Immunoglobulin-like	Protein-arginine deiminase, N-terminal domain	CATH (4.3.0)
A	2.60.40.1700	Mainly Beta	Sandwich	Immunoglobulin-like	Protein-arginine deiminase, central domain	CATH (4.3.0)
A	3.75.10.10	Alpha Beta	5-stranded Propeller	L-arginine/glycine Amidinotransferase	Chain A	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF08527	Protein-arginine deiminase (PAD) middle domain (PAD_M)	Protein-arginine deiminase (PAD) middle domain	This family represents the central non-catalytic domain of protein-arginine deiminase. This domain has an immunoglobulin-like fold.	Domain
A	PF03068	Protein-arginine deiminase (PAD) (PAD)	Protein-arginine deiminase (PAD)	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Protein-arginine deiminase type-3	cation binding ion binding binding calcium ion binding metal ion binding small molecule binding hydrolase activity, acting on carbon-nitrogen (but not peptide) bonds, in linear amidines hydrolase activity protein-arginine deiminase activity catalytic activity hydrolase activity, acting on carbon-nitrogen (but not peptide) bonds identical protein binding protein binding	-	intracellular anatomical structure cytoplasm cellular anatomical entity cytosol membrane-bounded organelle intracellular organelle organelle intracellular membrane-bounded organelle nucleus membrane-enclosed lumen intracellular organelle lumen nucleoplasm organelle lumen nuclear lumen

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR038685	PAD, N-terminal domain superfamily	Homologous Superfamily
A	IPR013530	Protein-arginine deiminase, C-terminal	Domain
A	IPR013732	Protein-arginine deiminase (PAD), N-terminal	Domain
A	IPR036556	Protein-arginine deiminase, central domain superfamily	Homologous Superfamily
A	IPR013733	Protein-arginine deiminase (PAD), central domain	Domain
A	IPR008972	Cupredoxin	Homologous Superfamily
A	IPR004303	Protein-arginine deiminase	Family

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A	Pharos: Q9ULW8	uncombable hair syndrome uncombable hair syndrome 1 interstitial cystitis Malignant neoplasm of breast rheumatoid arthritis

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 R01GM133198.