APOE and LDLR

Number of citations of the paper that reports this interaction (PubMedID 12036962)
6

Data Source:
HPRD (in vitro, in vivo)

		APOE	LDLR
Description		apolipoprotein E	low density lipoprotein receptor
Image
GO Annotations	Cellular Component	Extracellular Region Extracellular Space Nucleus Cytoplasm Early Endosome Endoplasmic Reticulum Endoplasmic Reticulum Lumen Golgi Apparatus Plasma Membrane Membrane Dendrite Clathrin-coated Endocytic Vesicle Membrane Extracellular Matrix Very-low-density Lipoprotein Particle Low-density Lipoprotein Particle Intermediate-density Lipoprotein Particle High-density Lipoprotein Particle Discoidal High-density Lipoprotein Particle Chylomicron Neuronal Cell Body Synaptic Cleft Collagen-containing Extracellular Matrix Extracellular Exosome Endocytic Vesicle Lumen Blood Microparticle Glutamatergic Synapse Extracellular Vesicle Lipoprotein Particle	Lysosome Early Endosome Late Endosome Golgi Apparatus Plasma Membrane Integral Component Of Plasma Membrane Clathrin-coated Pit External Side Of Plasma Membrane Cell Surface Endosome Membrane Membrane Basolateral Plasma Membrane Clathrin-coated Endocytic Vesicle Membrane Low-density Lipoprotein Particle Endolysosome Membrane Somatodendritic Compartment Receptor Complex Apical Part Of Cell Sorting Endosome PCSK9-LDLR Complex
	Molecular Function	Amyloid-beta Binding Signaling Receptor Binding Structural Molecule Activity Lipid Transporter Activity Protein Binding Phospholipid Binding Heparin Binding Lipid Binding Antioxidant Activity Identical Protein Binding Protein Homodimerization Activity Heparan Sulfate Proteoglycan Binding Protein-containing Complex Binding Metal Chelating Activity Protein Dimerization Activity Tau Protein Binding Low-density Lipoprotein Particle Receptor Binding Phosphatidylcholine-sterol O-acyltransferase Activator Activity Very-low-density Lipoprotein Particle Receptor Binding Lipoprotein Particle Binding Cholesterol Transfer Activity	Amyloid-beta Binding Virus Receptor Activity Protease Binding Low-density Lipoprotein Particle Receptor Activity Calcium Ion Binding Protein Binding Low-density Lipoprotein Particle Binding Very-low-density Lipoprotein Particle Receptor Activity Clathrin Heavy Chain Binding Identical Protein Binding Lipoprotein Particle Binding
	Biological Process	Response To Reactive Oxygen Species Negative Regulation Of Endothelial Cell Proliferation Response To Dietary Excess Triglyceride Metabolic Process Cholesterol Catabolic Process Cellular Calcium Ion Homeostasis Receptor-mediated Endocytosis Cytoskeleton Organization G Protein-coupled Receptor Signaling Pathway Nitric Oxide Mediated Signal Transduction Synaptic Transmission, Cholinergic Long-term Memory Cholesterol Metabolic Process Gene Expression Negative Regulation Of Platelet Activation Negative Regulation Of Endothelial Cell Migration Negative Regulation Of Gene Expression Positive Regulation Of Cholesterol Esterification Positive Regulation Of Cholesterol Efflux Lipid Transport Involved In Lipid Storage Positive Regulation Of Neuron Projection Development Negative Regulation Of Neuron Projection Development Long-chain Fatty Acid Transport Protein Import Virion Assembly CGMP-mediated Signaling Negative Regulation Of Blood Coagulation Regulation Of Axon Extension Neuron Projection Development Negative Regulation Of Cellular Protein Metabolic Process Regulation Of Cdc42 Protein Signal Transduction Positive Regulation Of Low-density Lipoprotein Particle Receptor Catabolic Process Cholesterol Efflux Phospholipid Efflux Very-low-density Lipoprotein Particle Remodeling Low-density Lipoprotein Particle Remodeling High-density Lipoprotein Particle Remodeling High-density Lipoprotein Particle Assembly Chylomicron Remnant Clearance High-density Lipoprotein Particle Clearance Very-low-density Lipoprotein Particle Clearance Locomotory Exploration Behavior Lipoprotein Biosynthetic Process Lipoprotein Catabolic Process Vasodilation Cholesterol Homeostasis Amyloid Precursor Protein Metabolic Process Regulation Of Protein-containing Complex Assembly Negative Regulation Of MAP Kinase Activity Negative Regulation Of Neuron Apoptotic Process Negative Regulation Of Blood Vessel Endothelial Cell Migration Reverse Cholesterol Transport Positive Regulation By Host Of Viral Process Regulation Of Innate Immune Response Negative Regulation Of Cholesterol Biosynthetic Process Positive Regulation Of Endocytosis Positive Regulation Of Transcription, DNA-templated Positive Regulation Of Lipid Biosynthetic Process Intracellular Transport Regulation Of Neuronal Synaptic Plasticity Negative Regulation Of Smooth Muscle Cell Proliferation Artery Morphogenesis Negative Regulation Of Protein Secretion Negative Regulation Of Inflammatory Response Positive Regulation Of Nitric-oxide Synthase Activity Positive Regulation Of Membrane Protein Ectodomain Proteolysis Regulation Of Protein Metabolic Process Maintenance Of Location In Cell Fatty Acid Homeostasis Positive Regulation Of Dendritic Spine Development Regulation Of Proteasomal Protein Catabolic Process Response To Caloric Restriction Triglyceride Homeostasis Positive Regulation Of ERK1 And ERK2 Cascade Triglyceride-rich Lipoprotein Particle Clearance Intermediate-density Lipoprotein Particle Clearance Negative Regulation Of Canonical Wnt Signaling Pathway Regulation Of Cholesterol Metabolic Process Negative Regulation Of Triglyceride Metabolic Process AMPA Glutamate Receptor Clustering NMDA Glutamate Receptor Clustering Cellular Oxidant Detoxification Intermembrane Lipid Transfer Regulation Of Amyloid-beta Clearance Positive Regulation Of Amyloid-beta Clearance Negative Regulation Of Long-term Synaptic Potentiation Negative Regulation Of Amyloid-beta Formation Positive Regulation Of Dendritic Spine Maintenance Regulation Of Amyloid Precursor Protein Catabolic Process Positive Regulation Of Phospholipid Efflux Positive Regulation Of Lipid Transport Across Blood-brain Barrier Positive Regulation Of Heparan Sulfate Binding Positive Regulation Of Heparan Sulfate Proteoglycan Binding Regulation Of Cellular Response To Very-low-density Lipoprotein Particle Stimulus Regulation Of Amyloid Fibril Formation Negative Regulation Of Amyloid Fibril Formation Positive Regulation Of Amyloid Fibril Formation Regulation Of Behavioral Fear Response	Lipid Metabolic Process Endocytosis Receptor-mediated Endocytosis Phagocytosis Long-term Memory Cholesterol Metabolic Process Positive Regulation Of Gene Expression Negative Regulation Of Gene Expression Positive Regulation Of Triglyceride Biosynthetic Process Regulation Of Phosphatidylcholine Catabolic Process Phospholipid Transport Intestinal Cholesterol Absorption Cholesterol Transport Plasma Lipoprotein Particle Clearance Low-density Lipoprotein Particle Clearance High-density Lipoprotein Particle Clearance Lipoprotein Catabolic Process Cholesterol Homeostasis Viral Entry Into Host Cell Artery Morphogenesis Positive Regulation Of Inflammatory Response Regulation Of Protein Metabolic Process Negative Regulation Of Protein Metabolic Process Response To Caloric Restriction Negative Regulation Of Astrocyte Activation Cholesterol Import Cellular Response To Fatty Acid Cellular Response To Low-density Lipoprotein Particle Stimulus Receptor-mediated Endocytosis Involved In Cholesterol Transport Regulation Of Cholesterol Metabolic Process Amyloid-beta Clearance Amyloid-beta Clearance By Cellular Catabolic Process Negative Regulation Of Microglial Cell Activation Positive Regulation Of Lysosomal Protein Catabolic Process Negative Regulation Of Amyloid Fibril Formation
Pathways		Nuclear signaling by ERBB4 Scavenging by Class A Receptors Scavenging by Class A Receptors Regulation of Insulin-like Growth Factor (IGF) transport and uptake by Insulin-like Growth Factor Binding Proteins (IGFBPs) Transcriptional regulation by the AP-2 (TFAP2) family of transcription factors Post-translational protein phosphorylation Chylomicron assembly Chylomicron remodeling Chylomicron clearance Chylomicron clearance HDL remodeling NR1H3 & NR1H2 regulate gene expression linked to cholesterol transport and efflux Retinoid metabolism and transport Retinoid metabolism and transport Amyloid fiber formation	Cargo recognition for clathrin-mediated endocytosis Clathrin-mediated endocytosis Chylomicron clearance Chylomicron clearance LDL clearance Retinoid metabolism and transport
Drugs		Zinc Copper Zinc acetate Zinc chloride Zinc sulfate, unspecified form	Porfimer sodium
Diseases
GWAS		Abdominal aortic aneurysm ( 32981348) Adult body size ( 32376654) Advanced age-related macular degeneration ( 26691988) Age-related cognitive decline (memory) (slope of z-scores) ( 30954325) Age-related macular degeneration ( 23326517 23455636) Aging traits (healthspan, parental lifespan or longevity) (multivariate analysis) ( 32678081) Alanine aminotransferase levels ( 33547301) Alzheimer disease and age of onset ( 26830138) Alzheimer's disease ( 17975299 22832961 24770881 20460622 30636644 17998437 18823527 33074286 19734902 19734903 21627779 24755620 19125160 20061627 22245343 31473137) Alzheimer's disease (age of onset) ( 22005931) Alzheimer's disease (late onset) ( 17474819 20885792 23565137 26339675 30617256 28714976) Alzheimer's disease (onset at age over 80) ( 30979435) Alzheimer's disease (onset between ages 58 and 79) ( 30979435) Alzheimer's disease biomarkers ( 23562540 21123754 23419831) Alzheimer's disease in hypertension ( 31055733) Alzheimer's disease in hypertension-negative individuals ( 31055733) Alzheimer's disease or family history of Alzheimer's disease ( 33589840 30617256) Alzheimer's disease or HDL levels (pleiotropy) ( 30805717) Alzheimer's disease progression score ( 29860282) Alzheimerâ€™s disease (clinical subgroup AD+) ( 31473137) Alzheimerâ€™s disease (clinical subgroup AD++) ( 31473137) Alzheimerâ€™s disease (clinical subgroup AD+++) ( 31473137) Alzheimerâ€™s disease and/or vascular dementia (clinical subgroup VaD+) ( 31473137) Apolipoprotein A1 levels ( 32203549 33730874) Apolipoprotein Levels ( 23031429) Aspartate aminotransferase levels ( 33547301) Blood metabolite ratios ( 24816252) Blood protein levels ( 29875488) Body fat percentage ( 26833246) Body mass index ( 26426971) Body mass index (age>50) ( 26426971) Body mass index x age interaction ( 26426971) Body mass index x sex x age interaction (4df test) ( 26426971) Brain imaging ( 20100581) C-reactive protein ( 19567438 18439548 18439552 23844046) C-reactive protein levels ( 29403010 33339817 30388399) Cardiovascular risk factors ( 20838585) Carotid intima media thickness ( 30510157) Carotid intima media thickness (maximum) ( 31801372) Carotid intima media thickness (mean) ( 31801372) Cerebral amyloid deposition (PET imaging) ( 26252872 30361487) Cerebral amyloid deposition positivity (PET imaging) ( 26252872) Cerebral microbleeds ( 32913026) Cerebral microbleeds (lobar) ( 32913026) Cerebrospinal AB1-42 levels in Alzheimer's disease dementia ( 29274321 25027320) Cerebrospinal AB1-42 levels in mild cognitive impairment ( 29274321) Cerebrospinal AB1-42 levels in normal cognition ( 29274321) Cerebrospinal fluid AB1-42 levels ( 28247064 30319691 28641921 29274321) Cerebrospinal fluid p-tau levels ( 29274321) Cerebrospinal fluid p-tau levels in mild cognitive impairment ( 29274321) Cerebrospinal fluid p-Tau181p:AB1-42 ratio ( 30319691) Cerebrospinal fluid t-tau levels ( 28641921 29274321) Cerebrospinal fluid t-tau levels in mild cognitive impairment ( 29274321) Cerebrospinal fluid t-tau:AB1-42 ratio ( 30319691 28641921) Cerebrospinal P-tau181p levels ( 28247064) Cerebrospinal T-tau levels ( 28247064) Cholesterol, total ( 24097068 28270201 19060911 25961943 20686565) Cingulate cortical amyloid beta load ( 26421299) Cognitive decline ( 22054870) Cognitive decline (age-related) ( 28078323 24468470) Cognitive impairment test score ( 30319691) Coronary artery disease ( 32469254 29212778 30104761 26343387) Coronary artery disease (myocardial infarction, percutaneous transluminal coronary angioplasty, coronary artery bypass grafting, angina or chromic ischemic heart disease) ( 28714975) Dementia with Lewy bodies ( 29263008 31065058) Family history of Alzheimer's disease ( 30617256) Fasting triglyceride levels ( 32603185) Fish- and plant-related diet ( 32066663) Free cholesterol levels in large LDL ( 29084231) Fruit consumption ( 32066663) Gut microbiota (functional units) ( 27694959) HDL cholesterol ( 24097068 21909109 28270201 19060911 30275531 25961943 20686565) HDL cholesterol levels ( 32203549 28334899 26690388) HDL cholesterol levels in HIV infection ( 33109212) High density lipoprotein cholesterol levels ( 29403010 33339817) High light scatter reticulocyte count ( 27863252) High light scatter reticulocyte percentage of red cells ( 27863252) High-sensitivity C-reactive protein levels in HIV infection ( 33095540) Hippocampal atrophy ( 22745009) Hippocampal volume ( 29274321) Hippocampal volume in Alzheimer's disease dementia ( 29274321) Ideal cardiovascular health (clinical) ( 27179730) Immature fraction of reticulocytes ( 27863252) Lamb consumption ( 32066663) Late-onset Alzheimer's disease ( 29360470) LDL cholesterol ( 23726366 24097068 18802019 24507774 18193043 18193044 20864672 26160806 19060906 19060911 25961943 23067351 20686565) LDL cholesterol levels ( 28334899 31087446 26763881 28371326 32759990 17463246) LDL cholesterol levels in HIV infection ( 33109212) LDL cholesterol levels x long total sleep time interaction (2df test) ( 31719535) LDL cholesterol levels x short total sleep time interaction (2df test) ( 31719535) Lewy body disease ( 25188341) Lipid metabolism phenotypes ( 22286219) Lipid or lipoprotein levels ( 23696881) Lipid traits ( 30576415 24023260) Lipoprotein (a) levels ( 28512139) Lipoprotein phospholipase A2 activity in cardiovascular disease ( 28753643) Lipoprotein(a) levels adjusted for apolipoprotein(a) isoforms ( 28512139) Lipoprotein-associated phospholipase A2 activity and mass ( 23118302) Lipoprotein-associated phospholipase A2 activity change in response to darapladib treatment in cardiovascular disease ( 28753643) Liver enzyme levels (alanine transaminase) ( 33972514) Liver enzyme levels (alkaline phosphatase) ( 33972514) Liver fat content (MRI proton density fat fraction measure) ( 32247823) Lobar intracerebral hemorrhage ( 31430377) Logical memory (delayed recall) ( 29274321) Logical memory (immediate recall) ( 29274321) Longevity ( 21418511 31484785) Longevity (85 years and older) ( 24688116) Longevity (90 years and older) ( 24688116) Longevity (age >90th survival percentile) ( 31413261) Longevity (age >99th survival percentile) ( 31413261) Low density lipoprotein cholesterol levels ( 30718733 29403010 33339817 31969989 28548082) Low density lipoprotein cholesterol levels (on statin treatment) ( 31969989) Mean reticulocyte volume ( 32888494) Mean spheric corpuscular volume ( 32888494) Meat-related diet ( 32066663) Medication use (agents acting on the renin-angiotensin system) ( 31015401) Medication use (antithrombotic agents) ( 31015401) Medication use (calcium channel blockers) ( 31015401) Medication use (HMG CoA reductase inhibitors) ( 31015401) Medication use (salicylic acid and derivatives) ( 31015401) Mental health study participation (completed survey) ( 31263887) Metabolic syndrome ( 22399527) Metabolite levels ( 22916037) Metabolite levels (lipoprotein measures) ( 27005778) Moderate to vigorous physical activity levels ( 29899525) Mortality ( 27029810) Myocardial infarction ( 33532862) Neuritic plaque ( 31497858) Neuritic plaques or cerebral amyloid angiopathy (pleiotropy) ( 29458411) Neuritic plaques or neurofibrillary tangles (pleiotropy) ( 29458411) Neurofibrillary tangles ( 31497858) Neurofibrillary tangles or cerebral amyloid angiopathy (pleiotropy) ( 29458411) Parental lifespan ( 30642433 29030599) Parental longevity (both parents in top 10%) ( 29227965) Parental longevity (combined parental age at death) ( 29227965) Parental longevity (combined parental attained age, Martingale residuals) ( 29227965) Parental longevity (father's age at death) ( 29227965) Parental longevity (father's attained age) ( 29227965) Parental longevity (mother's age at death or mother's attained age) ( 31484785) Parental longevity (mother's age at death) ( 31484785 29227965) Parental longevity (mother's attained age) ( 29227965) Parkinson's disease (age of onset) ( 30957308) Parkinson's disease progression (cognitive) ( 33111402) Parkinson's disease progression (composite) ( 33111402) Percent liver fat ( 34128465) Plasma amyloid beta peptide concentration (ABx-40/ABx-42 ratio) ( 34002480) Plasma amyloid beta peptide concentrations (ABx-42) ( 34002480) Platelet count ( 32888494 27863252) Plateletcrit ( 32888494) Posterior cortical atrophy and Alzheimer's disease ( 26993346) Postprandial triglyceride levels ( 32603185) Psychosis and Alzheimer's disease ( 22005930) Pulse pressure ( 30224653 30578418) Quantitative traits ( 19197348) Red cell distribution width ( 32888494 27863252 28957414) Refractive error ( 32231278) Relative sugar intake ( 32393786) Response to statins (LDL cholesterol change) ( 25350695 22331829 31969989) Response to statins (LDL cholesterol percent change) ( 31969989) Resting heart rate ( 27798624) Reticulocyte count ( 32888494 27863252) Reticulocyte fraction of red cells ( 32888494 27863252) Serum C-reactive protein concentration ( 32928877) Serum metabolite levels ( 31636271) Serum metabolite levels (CMS) ( 31636271) Serum total cholesterol levels ( 29084231 33134509) Serum type 1 collagen metabolite levels ( 33134509) Sphingolipid levels ( 26068415) Systolic blood pressure ( 30578418) Total cholesterol levels ( 30718733 28334899 26690388 31087446 29403010 33339817 32759990 28548082) Total cholesterol levels in LDL ( 29084231) Triglyceride levels ( 30718733 28334899 29403010 33339817) Triglyceride levels in HIV infection ( 33109212) Triglycerides ( 24507774 19060911 25961943 20686565 26582766) Type 2 diabetes ( 27189021 30297969 28869590) Verbal declarative memory ( 25648963) Verbal memory performance (immediate recall change) ( 28800603) Verbal memory performance (residualized delayed recall level) ( 28800603) Very long-chain saturated fatty acid levels (fatty acid 20:0) ( 25378659) Vigorous physical activity ( 29899525) Waist-hip index ( 34021172) Waist-to-hip ratio adjusted for BMI ( 34021172) White matter hyperintensities ( 32358547) White matter hyperintensity volume ( 33293549) White matter hyperintensity volume (adjusted for hypertension) ( 33293549)	Abdominal aortic aneurysm ( 27899403 24046328) Aging traits (healthspan, parental lifespan or longevity) (multivariate analysis) ( 32678081) Apolipoprotein A1 levels ( 33730874) Apolipoprotein B levels ( 32203549) C-reactive protein levels or LDL-cholesterol levels (pleiotropy) ( 27286809) Cardiovascular disease risk factors ( 21943158) Carotid intima media thickness ( 21909108) Carotid plaque ( 30510157) Cholesterol ( 31902109) Cholesterol, total ( 24097068 19060911 25961943 20686565 26582766) Coronary artery disease ( 32469254 29212778 24262325 30104761 26343387 33020668) Coronary artery disease (myocardial infarction, percutaneous transluminal coronary angioplasty, coronary artery bypass grafting, angina or chromic ischemic heart disease) ( 28714975) Coronary artery disease or ischemic stroke ( 24262325) Coronary artery disease or large artery stroke ( 24262325) Coronary heart disease ( 21378990) Cortisol levels (saliva) ( 28843169) Disorders of lipid metabolism ( 30166351) HDL cholesterol levels x alcohol consumption (drinkers vs non-drinkers) interaction (2df) ( 30698716) Ischemic stroke ( 29531354) LDL cholesterol ( 23726366 24097068 18193043 18193044 20864672 19060906 19060910 19060911 30275531 21347282 25961943 20686565 26582766) LDL cholesterol levels ( 32203549 28334899 26690388 30698716) LDL cholesterol levels in current drinkers ( 30698716) LDL cholesterol levels in HIV infection ( 33109212) LDL cholesterol levels x alcohol consumption (drinkers vs non-drinkers) interaction (2df) ( 30698716) LDL cholesterol levels x alcohol consumption (regular vs non-regular drinkers) interaction (2df) ( 30698716) LDL cholesterol levels x long total sleep time interaction (2df test) ( 31719535) LDL cholesterol levels x short total sleep time interaction (2df test) ( 31719535) Lipid metabolism phenotypes ( 22286219 19936222) Lipoprotein phospholipase A2 activity in cardiovascular disease ( 28753643) Lipoprotein-associated phospholipase A2 activity and mass ( 22003152) Low density lipoprotein cholesterol levels ( 30911093 29403010 33339817 31217584 31969989) Medication use (agents acting on the renin-angiotensin system) ( 31015401) Medication use (antithrombotic agents) ( 31015401) Medication use (HMG CoA reductase inhibitors) ( 31015401) Medication use (salicylic acid and derivatives) ( 31015401) Metabolite levels ( 21909109 23823483 22916037) Metabolite levels (lipoprotein measures) ( 27005778) Myocardial infarction ( 33532862 26343387) Myocardial infarction (early onset) ( 19198609) Parental lifespan ( 30642433) Parental longevity (combined parental attained age, Martingale residuals) ( 29227965) Peripheral artery disease ( 31285632) Response to statins (LDL cholesterol change) ( 31969989) Serum metabolite levels ( 31636271) Serum metabolite levels (CMS) ( 31636271) Stroke ( 29531354) Total cholesterol levels ( 28334899 30911093 29403010 33339817 31217584)
Interacting Genes		65 interacting genes: A2M ALB ANKH APOC2 APOC4 APP ARFGAP1 CD1D CD79A CDC37 CEACAM1 CNTF CSNK2A1 CST1 CTSB CYP2C18 CYP2C8 ECSIT ELAVL1 EPN2 FARSA FBXL12 FOXG1 FXYD7 GCDH HSP90AA1 HTRA1 IFIT3 IFIT5 IQSEC1 LCAT LDLR LINC02582 LONP1 LOXL4 LRP1 LRP2 LRP8 MAP2 MAPT MAST1 MID1IP1 NEFM NOS3 PCMT1 PDCD4 PLEKHA6 PLTP PRAM1 PRDX2 PRNP PSEN1 RHEB RNF32 RPL4 SCARB1 SNCA SORL1 ST13 TIMM29 TREM2 TYRO3 VLDLR ZBP1 ZNF558	17 interacting genes: AP1M2 APOB APOE CD36 CREBBP DAB1 DAB2 HSPA5 LDLRAP1 LRPAP1 MAP4 MTIF3 MYLIP PCSK9 PF4 SNX17 TLE5
Entrez ID		348	3949
HPRD ID		00135	06091
Ensembl ID		ENSG00000130203	ENSG00000130164
Uniprot IDs		A0A0S2Z3D5 P02649	A0A024R7D5 P01130
PDB IDs		1B68 1BZ4 1EA8 1GS9 1H7I 1LE2 1LE4 1LPE 1NFN 1NFO 1OEF 1OEG 1OR2 1OR3 2KC3 2KNY 2L7B 6IWB 6NCN 6NCO	1AJJ 1D2J 1F5Y 1F8Z 1HJ7 1HZ8 1I0U 1IJQ 1LDL 1LDR 1LRX 1N7D 1XFE 2FCW 2KRI 2LGP 2M7P 2MG9 2W2M 2W2N 2W2O 2W2P 2W2Q 3BPS 3GCW 3GCX 3M0C 3P5B 3P5C 3SO6 4NE9 5OY9 5OYL
Enriched GO Terms of Interacting Partners?
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