APCS and C1QA

Number of citations: 0 (PubMedID 8417122)
Data Source: HPRD (in vitro)

		APCS	C1QA
Name		amyloid P component, serum	complement C1q A chain
Structure
GO Annotations	Cellular Component	Extracellular Region Extracellular Space Nucleus Extracellular Exosome Blood Microparticle	Extracellular Region Collagen Trimer Complement Component C1 Complex Cell Surface Extracellular Matrix Synapse Complement Component C1q Complex Postsynapse Extrinsic Component Of Presynaptic Membrane Extrinsic Component Of Postsynaptic Membrane Glutamatergic Synapse Symbiont Cell Surface
	Molecular Function	Complement Component C1q Complex Binding Calcium Ion Binding Protein Binding Carbohydrate Binding Identical Protein Binding Virion Binding Metal Ion Binding Unfolded Protein Binding	Amyloid-beta Binding Phosphatidylserine Binding IgM Binding Protein Binding IgG Binding
	Biological Process	Negative Regulation Of Acute Inflammatory Response Protein Folding Acute-phase Response Negative Regulation By Host Of Viral Glycoprotein Metabolic Process Innate Immune Response Negative Regulation Of Monocyte Differentiation Host-mediated Suppression Of Symbiont Invasion Negative Regulation Of Viral Process Chaperone-mediated Protein Complex Assembly Negative Regulation Of Wound Healing Negative Regulation Of Glycoprotein Metabolic Process	Microglial Cell Activation Immune System Process Complement Activation Complement Activation, Classical Pathway Cell-cell Signaling Neuron Remodeling Innate Immune Response Astrocyte Activation Synapse Organization Synapse Pruning Complement-mediated Synapse Pruning Vertebrate Eye-specific Patterning
Pathways		Amyloid fiber formation	Initial triggering of complement Classical antibody-mediated complement activation Regulation of Complement cascade
Drugs		Zinc Methyl 4,6-O-[(1R)-1-carboxyethylidene]-beta-D-galactopyranoside Bis-1,2-{[(Z)-2-carboxy-2-methyl-1,3-dioxane]-5-yloxycarbamoyl}-ethane BIS-1,2-{[(Z)-2CARBOXY-2-METHYL-1,3-DIOXANE]-5-YLOXYCARBONYL}-PIPERAZINE Copper Zinc acetate	Cetuximab Etanercept Palivizumab Daclizumab Bevacizumab
Diseases		None	Classic complement pathway component defects, including the following eight diseases: C1q alpha-chain deficiency; C1q beta-chain deficiency; C1q gamma-chain deficiency; C1r deficiency; C1s deficiency; C2 deficiency; C3 deficiency; C4 deficiency
GWAS		Blood protein levels ( 30072576 ) C-reactive protein ( 22939635 ) Neonatal white matter microstructure ( 33009551 )	Inflammatory biomarkers (multivariate analysis) ( 33110245 )
Novel Interactors		None recorded	1 novel interactors: RHOA
Interacting Genes		18 interacting genes: ALX1 C1QA C4BPA CALU COL4A1 COPS5 CRP FCGR1A FCGR2B FCGR3A FCGR3B FN1 GK GOT2 GRB2 HES1 LAMA1 TG	31 interacting genes: APCS BAG6 C1QB C1QBP C1QC C1R C1S CD93 COL2A1 CR1 CRP CSPG4 DCN FN1 GNPNAT1 HIPK3 HMGB1 HRG HSPB2 NLGN3 PIAS2 PPP1CA PPP1CC PTX3 SGTA SGTB SLC25A47 TXN UBQLN1 UBQLN2 USP40
Entrez ID		325	712
HPRD ID		00101	00393
Ensembl ID		ENSG00000132703	ENSG00000173372
Uniprot IDs		P02743 V9HWP0	P02745
PDB IDs		1GYK 1LGN 1SAC 2A3W 2A3X 2A3Y 2W08 3D5O 3KQR 4AVS 4AVT 4AVV 4AYU	1PK6 2JG8 2JG9 2WNU 2WNV 5HKJ 5HZF 6FCZ 6Z6V 9C9L 9C9U
GO Terms Enriched among Interactors		IgG Binding IgG Receptor Activity Acute Inflammatory Response Antibody-dependent Cellular Cytotoxicity Hypersensitivity Acute Inflammatory Response To Antigenic Stimulus Lymphocyte Mediated Immunity Immune Effector Process Leukocyte Mediated Immunity Leukocyte Mediated Cytotoxicity Fc-gamma Receptor Signaling Pathway Inflammatory Response To Antigenic Stimulus Adaptive Immune Response Based On Somatic Recombination Of Immune Receptors Built From Immunoglobulin Superfamily Domains Immunoglobulin Mediated Immune Response B Cell Mediated Immunity Fc Receptor Signaling Pathway Low-affinity IgG Receptor Activity Cell Killing Defense Response Response To Other Organism Immune Response-regulating Cell Surface Receptor Signaling Pathway Regulation Of Immune System Process Adaptive Immune Response Extracellular Region Immune Response Inflammatory Response Retinal Blood Vessel Morphogenesis Response To External Biotic Stimulus Regulation Of Immune Response Innate Immune Response Immune System Process Positive Regulation Of Immune System Process Negative Regulation Of Humoral Immune Response Mediated By Circulating Immunoglobulin Regulation Of Lymphocyte Mediated Immunity Retina Vasculature Morphogenesis In Camera-type Eye Immune Response-regulating Signaling Pathway Cell Surface Receptor Signaling Pathway Defense Response To Symbiont Defense Response To Other Organism Basement Membrane Regulation Of Mononuclear Cell Proliferation Regulation Of Humoral Immune Response Mediated By Circulating Immunoglobulin Regulation Of Acute Inflammatory Response To Antigenic Stimulus Renal Tubule Morphogenesis Blood Vessel Morphogenesis Regulation Of Leukocyte Proliferation Positive Regulation Of Tumor Necrosis Factor Production Positive Regulation Of Tumor Necrosis Factor Superfamily Cytokine Production Leukocyte Activation Extracellular Matrix Structural Constituent	Complement Component C1q Complex Binding Complement Activation, Classical Pathway Complement Component C1 Complex Complement Activation Blood Microparticle Cell Surface Opsonization Immune Effector Process Positive Regulation Of ERAD Pathway Symbiont Cell Surface Defense Response To Symbiont Defense Response To Other Organism Regulation Of ERAD Pathway Innate Immune Response Regulation Of Protein Metabolic Process Extracellular Region Response To Stress Humoral Immune Response Virion Binding Activation Of Immune Response Extracellular Matrix Positive Regulation Of Response To Endoplasmic Reticulum Stress Post-translational Protein Targeting To Endoplasmic Reticulum Membrane Response To External Biotic Stimulus Regulation Of Immune System Process Immune System Process Positive Regulation Of Immune Response Defense Response Response To Other Organism Negative Regulation By Host Of Viral Glycoprotein Metabolic Process TRC Complex Regulation Of Immune Response Immune Response Extracellular Space Identical Protein Binding Negative Regulation Of Endothelial Cell Migration Complement Component C1q Complex Positive Regulation Of Immune System Process Protein Targeting To ER Regulation Of Response To Endoplasmic Reticulum Stress ERAD Pathway Regulation Of Multicellular Organismal Development Establishment Of Protein Localization To Endoplasmic Reticulum IgM Binding Positive Regulation Of Proteolysis Negative Regulation Of Immune System Process Polyubiquitin Modification-dependent Protein Binding Acute-phase Response Positive Regulation Of Proteasomal Protein Catabolic Process Postsynapse