Annotations: 4IP9

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Serum amyloid A (SAA)-like	8053506	3002198	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Serum amyloid A (SAA)-like	8053506	3002198	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)
A	SAA	e4ip9A1	A: alpha arrays	X: Serum amyloid A-1 protein (From Topology)	H: Serum amyloid A-1 protein (From Topology)	T: Serum amyloid A-1 protein	F: SAA	ECOD (1.6)
B	SAA	e4ip9B1	A: alpha arrays	X: Serum amyloid A-1 protein (From Topology)	H: Serum amyloid A-1 protein (From Topology)	T: Serum amyloid A-1 protein	F: SAA	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.10.132.110	Mainly Alpha	Orthogonal Bundle	Topoisomerase I	Chain A, domain 4	CATH (4.3.0)
B	1.10.132.110	Mainly Alpha	Orthogonal Bundle	Topoisomerase I	Chain A, domain 4	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF00277	Serum amyloid A protein (SAA)	Serum amyloid A protein	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Serum amyloid A-1 protein	protein binding binding signaling receptor binding G protein-coupled receptor binding heparin binding glycosaminoglycan binding carbohydrate derivative binding sulfur compound binding	multicellular organismal process regulation of body fluid levels wound healing response to stimulus cell activation hemostasis biological regulation blood coagulation response to stress coagulation cellular process regulation of biological quality response to wounding platelet activation multicellular organismal process regulation of body fluid levels wound healing response to stimulus cell activation hemostasis biological regulation blood coagulation response to stress coagulation cellular process regulation of biological quality response to wounding platelet activation regulation of biological process cell adhesion regulation of cellular process positive regulation of cell adhesion regulation of cell adhesion positive regulation of biological process positive regulation of cellular process interleukin-1 production cellular biosynthetic process positive regulation of cellular metabolic process positive regulation of macromolecule biosynthetic process positive regulation of metabolic process positive regulation of biosynthetic process regulation of cytokine production cytokine production positive regulation of interleukin-1 production regulation of multicellular organismal process positive regulation of macromolecule metabolic process regulation of biosynthetic process regulation of interleukin-1 production cellular metabolic process regulation of cellular metabolic process regulation of macromolecule metabolic process gene expression macromolecule biosynthetic process regulation of cellular biosynthetic process regulation of gene expression biosynthetic process positive regulation of gene expression positive regulation of multicellular organismal process regulation of macromolecule biosynthetic process metabolic process macromolecule metabolic process positive regulation of cytokine production regulation of metabolic process positive regulation of cellular biosynthetic process positive regulation of cytosolic calcium ion concentration acute-phase response defense response inflammatory response acute inflammatory response protein localization regulation of localization establishment of protein localization cellular localization nitrogen compound transport regulation of protein localization transport protein localization to extracellular region localization regulation of secretion by cell secretion by cell cellular macromolecule localization regulation of transport secretion regulation of establishment of protein localization establishment of protein localization to extracellular region export from cell regulation of protein transport protein secretion establishment of localization regulation of protein secretion regulation of secretion protein transport regulation of cellular localization macromolecule localization cell chemotaxis cellular response to stimulus chemotaxis macrophage chemotaxis response to external stimulus macrophage migration leukocyte migration cellular response to chemical stimulus taxis immune system process response to chemical mononuclear cell migration myeloid leukocyte migration cell migration cell motility leukocyte chemotaxis locomotion neutrophil chemotaxis neutrophil migration granulocyte migration granulocyte chemotaxis regulation of defense response regulation of response to external stimulus negative regulation of inflammatory response negative regulation of response to stimulus negative regulation of biological process regulation of inflammatory response regulation of response to stimulus negative regulation of response to external stimulus regulation of response to stress negative regulation of defense response lymphocyte chemotaxis lymphocyte migration	extracellular region cellular anatomical entity protein-containing complex plasma lipoprotein particle high-density lipoprotein particle extracellular space lipoprotein particle protein-lipid complex extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle organelle vesicle extracellular region cellular anatomical entity protein-containing complex plasma lipoprotein particle high-density lipoprotein particle extracellular space lipoprotein particle protein-lipid complex extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle organelle vesicle extracellular membrane-bounded organelle polymeric cytoskeletal fiber intracellular anatomical structure cytoplasmic microtubule intracellular organelle cytoskeleton intracellular non-membrane-bounded organelle cytoplasm supramolecular fiber microtubule supramolecular polymer supramolecular complex microtubule cytoskeleton non-membrane-bounded organelle intracellular vesicle membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen cytoplasmic vesicle organelle lumen endocytic vesicle lumen endocytic vesicle

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR000096	Serum amyloid A protein	Family

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B	Pharos: P0DJI8	familial Mediterranean fever amyloidosis AA amyloidosis Arthritis, Experimental contact dermatitis inflammatory bowel disease non-Hodgkin lymphoma renal cell carcinoma systemic lupus erythematosus ankylosing spondylitis Behcet disease Castleman disease lymphoplasmacytic lymphoma polyarteritis nodosa rheumatoid arthritis familial Mediterranean fever amyloidosis AA amyloidosis Arthritis, Experimental contact dermatitis inflammatory bowel disease non-Hodgkin lymphoma renal cell carcinoma systemic lupus erythematosus ankylosing spondylitis Behcet disease Castleman disease lymphoplasmacytic lymphoma polyarteritis nodosa rheumatoid arthritis acquired metabolic disease attention deficit hyperactivity disorder, inattentive type bronchiectasis chronic recurrent multifocal osteomyelitis gout mevalonic aciduria psoriasis Schnitzler syndrome autosomal dominant familial periodic fever Bruton-type agammaglobulinemia CINCA syndrome cystic fibrosis

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.