Gene description for APCS
Gene name amyloid P component, serum
Gene symbol APCS
Other names/aliases HEL-S-92n
PTX2
SAP
Species Homo sapiens
 Database cross references - APCS
ExoCarta ExoCarta_325
Vesiclepedia VP_325
Entrez Gene 325
HGNC 584
MIM 104770
UniProt P02743  
 APCS identified in exosomes derived from the following tissue/cell type
Chondrocytes 35931686    
Chondrocytes 35931686    
Chondrocytes 35931686    
Chondrocytes 35931686    
Mesenchymal stem cells 36408942    
Urine 15326289    
Urine 19056867    
Urine 22418980    
Urine 22418980    
 Gene ontology annotations for APCS
Molecular Function
    complement component C1q complex binding GO:0001849 IBA
    complement component C1q complex binding GO:0001849 IDA
    calcium ion binding GO:0005509 IDA
    protein binding GO:0005515 IPI
    carbohydrate binding GO:0030246 IEA
    identical protein binding GO:0042802 IPI
    virion binding GO:0046790 IDA
    unfolded protein binding GO:0051082 TAS
Biological Process
    negative regulation of acute inflammatory response GO:0002674 IC
    protein folding GO:0006457 TAS
    acute-phase response GO:0006953 TAS
    negative regulation by host of viral exo-alpha-sialidase activity GO:0044869 IDA
    negative regulation by host of viral glycoprotein metabolic process GO:0044871 IDA
    innate immune response GO:0045087 IBA
    innate immune response GO:0045087 IDA
    negative regulation of monocyte differentiation GO:0045656 IDA
    negative regulation of viral entry into host cell GO:0046597 IDA
    negative regulation of viral process GO:0048525 IDA
    chaperone-mediated protein complex assembly GO:0051131 TAS
    negative regulation of wound healing GO:0061045 IC
    negative regulation of exo-alpha-sialidase activity GO:1903016 IDA
    negative regulation of glycoprotein metabolic process GO:1903019 IDA
Subcellular Localization
    extracellular region GO:0005576 HDA
    extracellular region GO:0005576 NAS
    extracellular region GO:0005576 TAS
    extracellular space GO:0005615 HDA
    extracellular space GO:0005615 IBA
    extracellular space GO:0005615 IDA
    nucleus GO:0005634 HDA
    collagen-containing extracellular matrix GO:0062023 HDA
    collagen-containing extracellular matrix GO:0062023 HDA
    extracellular exosome GO:0070062 HDA
    blood microparticle GO:0072562 HDA
 Experiment description of studies that identified APCS in exosomes
1
Experiment ID 494
MISEV standards
✔
EM
Biophysical techniques
✔
CD9|CD81|CD151|CD63|CD82|FLOT1|FLOT2|GAPDH|LAMP1|LAMP2|SDCBP|TFRC|TSG101
Enriched markers
✘ Negative markers
✔
NTA
Particle analysis
Identified molecule Protein
Identification method Mass spectrometry
PubMed ID 35931686    
Organism Homo sapiens
Experiment description Extracellular vesicles enriched in connexin 43 promote a senescent phenotype in bone and synovial cells contributing to osteoarthritis progression
Authors "Varela-Eirín M, Carpintero-Fernández P, Guitián-Caamaño A, Varela-Vázquez A, García-Yuste A, Sánchez-Temprano A, Bravo-López SB, Yañez-Cabanas J, Fonseca E, Largo R, Mobasheri A, Caeiro JR, Mayán MD."
Journal name Cell Death Dis
Publication year 2022
Sample Chondrocytes
Sample name Osteoarthritic cartilage
Isolation/purification methods Differential centrifugation
Filtration
Ultracentrifugation
Flotation density -
Molecules identified in the study Protein
Methods used in the study Western blotting
Mass spectometry
2
Experiment ID 496
MISEV standards
✘ Biophysical techniques
✔
CD9|CD151|CD63|CD81|CD82|FLOT1|FLOT2|GAPDH|LAMP1|LAMP2|SDCBP|TFRC|TSG101
Enriched markers
✘ Negative markers
✘ Particle analysis
Identified molecule Protein
Identification method Mass spectrometry
PubMed ID 35931686    
Organism Homo sapiens
Experiment description Extracellular vesicles enriched in connexin 43 promote a senescent phenotype in bone and synovial cells contributing to osteoarthritis progression
Authors "Varela-Eirín M, Carpintero-Fernández P, Guitián-Caamaño A, Varela-Vázquez A, García-Yuste A, Sánchez-Temprano A, Bravo-López SB, Yañez-Cabanas J, Fonseca E, Largo R, Mobasheri A, Caeiro JR, Mayán MD."
Journal name Cell Death Dis
Publication year 2022
Sample Chondrocytes
Sample name Healthy cartilage
Isolation/purification methods Differential centrifugation
Filtration
Ultracentrifugation
Flotation density -
Molecules identified in the study Protein
Methods used in the study Western blotting
Mass spectometry
3
Experiment ID 497
MISEV standards
✘ Biophysical techniques
✔
CD9|CD151|CD63|CD81|CD82|FLOT1|FLOT2|GAPDH|LAMP1|LAMP2|RAB5A|SDCBP|TFRC|TSG101|UCHL1
Enriched markers
✘ Negative markers
✔
NTA
Particle analysis
Identified molecule Protein
Identification method Mass spectrometry
PubMed ID 35931686    
Organism Homo sapiens
Experiment description Extracellular vesicles enriched in connexin 43 promote a senescent phenotype in bone and synovial cells contributing to osteoarthritis progression
Authors "Varela-Eirín M, Carpintero-Fernández P, Guitián-Caamaño A, Varela-Vázquez A, García-Yuste A, Sánchez-Temprano A, Bravo-López SB, Yañez-Cabanas J, Fonseca E, Largo R, Mobasheri A, Caeiro JR, Mayán MD."
Journal name Cell Death Dis
Publication year 2022
Sample Chondrocytes
Sample name T/C-28a2
Isolation/purification methods Differential centrifugation
Filtration
Ultracentrifugation
Flotation density -
Molecules identified in the study Protein
Methods used in the study Western blotting
Mass spectometry
4
Experiment ID 498
MISEV standards
✔
EM
Biophysical techniques
✔
CD9|CD151|CD63|CD81|CD82|FLOT1|FLOT2|GAPDH|LAMP1|LAMP2|RAB5A|SDCBP|TFRC|TSG101|UCHL1
Enriched markers
✘ Negative markers
✔
NTA
Particle analysis
Identified molecule Protein
Identification method Mass spectrometry
PubMed ID 35931686    
Organism Homo sapiens
Experiment description Extracellular vesicles enriched in connexin 43 promote a senescent phenotype in bone and synovial cells contributing to osteoarthritis progression
Authors "Varela-Eirín M, Carpintero-Fernández P, Guitián-Caamaño A, Varela-Vázquez A, García-Yuste A, Sánchez-Temprano A, Bravo-López SB, Yañez-Cabanas J, Fonseca E, Largo R, Mobasheri A, Caeiro JR, Mayán MD."
Journal name Cell Death Dis
Publication year 2022
Sample Chondrocytes
Sample name T/C-28a2
Isolation/purification methods Differential centrifugation
Filtration
Ultracentrifugation
Flotation density -
Molecules identified in the study Protein
Methods used in the study Western blotting
Mass spectometry
5
Experiment ID 488
MISEV standards
✔
EM
Biophysical techniques
✔
CD9|CD81|CD63|GAPDH|SDCBP|LAMP1|TFRC|UCHL1|FLOT2|LAMP2|FLOT1|ICAM1|RAB5B|CD151|RAB35|TSG101|RAB5A|CD82
Enriched markers
✔
CANX
Negative markers
✔
NTA
Particle analysis
Identified molecule Protein
Identification method Mass spectrometry
PubMed ID 36408942    
Organism Homo sapiens
Experiment description Quantitative proteomic analysis of exosomes from umbilical cord mesenchymal stem cells and rat bone marrow stem cells
Authors "Xu X, Yin F, Guo M, Gan G, Lin G, Wen C, Wang J, Song P, Wang J, Qi ZQ, Zhong CQ."
Journal name Proteomics
Publication year 2023
Sample Mesenchymal stem cells
Sample name UCMSC
Isolation/purification methods Differential centrifugation
Filtration
Ultracentrifugation
Flotation density -
Molecules identified in the study Protein
Methods used in the study Western blotting
Mass spectometry
6
Experiment ID 13
MISEV standards
✔
IEM
Biophysical techniques
✔
Alix|RAB4|RAB5B|RAB11|TSG101|CD9|AQP2|AQP1
Enriched markers
✘ Negative markers
✘ Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 15326289    
Organism Homo sapiens
Experiment description Identification and proteomic profiling of exosomes in human urine.
Authors "Pisitkun T, Shen RF, Knepper MA"
Journal name PNAS
Publication year 2004
Sample Urine
Sample name Urine - Normal
Isolation/purification methods Ultracentrifugation
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry [LCQ DECA XP]
Western blotting
7
Experiment ID 63
MISEV standards
✘ Biophysical techniques
✔
AQP2
Enriched markers
✘ Negative markers
✘ Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 19056867    
Organism Homo sapiens
Experiment description Large-scale proteomics and phosphoproteomics of urinary exosomes.
Authors "Gonzales PA, Pisitkun T, Hoffert JD, Tchapyjnikov D, Star RA, Kleta R, Wang NS, Knepper MA"
Journal name JASN
Publication year 2009
Sample Urine
Sample name Urine - Normal
Isolation/purification methods Differential centrifugation
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry [LTQ]
Western blotting
8
Experiment ID 196
MISEV standards
✔
EM
Biophysical techniques
✔
Alix|TSG101|HSP70|CD9
Enriched markers
✘ Negative markers
✘ Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 22418980    
Organism Homo sapiens
Experiment description A multiplex quantitative proteomics strategy for protein biomarker studies in urinary exosomes.
Authors "Raj DA, Fiume I, Capasso G, Pocsfalvi G."
Journal name Kidney Int
Publication year 2012
Sample Urine
Sample name Urine - Normal high density
Isolation/purification methods Differential centrifugation
Sucrose cushion
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
9
Experiment ID 197
MISEV standards
✔
EM
Biophysical techniques
✔
Alix|TSG101|HSP70|CD9
Enriched markers
✘ Negative markers
✘ Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 22418980    
Organism Homo sapiens
Experiment description A multiplex quantitative proteomics strategy for protein biomarker studies in urinary exosomes.
Authors "Raj DA, Fiume I, Capasso G, Pocsfalvi G."
Journal name Kidney Int
Publication year 2012
Sample Urine
Sample name Urine - Normal low density
Isolation/purification methods Differential centrifugation
Sucrose cushion
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
 Protein-protein interactions for APCS
  Protein Interactor ExoCarta ID Identification method PubMed Species
1 FCGR1A  
Reconstituted Complex Homo sapiens
2 FCGR3B  
Reconstituted Complex Homo sapiens
3 RHBDD1 84236
Affinity Capture-MS Homo sapiens
4 GOT2 2806
Two-hybrid Homo sapiens
5 GRB2 2885
Two-hybrid Homo sapiens
6 AGPAT1 10554
Affinity Capture-MS Homo sapiens
7 CALU 813
Reconstituted Complex Homo sapiens
8 RLIM 51132
Affinity Capture-MS Homo sapiens
9 GNG8  
Affinity Capture-MS Homo sapiens
10 C4BPA 722
Co-purification Homo sapiens
Affinity Capture-Western Homo sapiens
11 FN1 2335
Affinity Capture-Western Homo sapiens
12 APCS 325
Co-crystal Structure Homo sapiens
Co-crystal Structure Homo sapiens
13 COPS5 10987
Two-hybrid Homo sapiens
14 ALX1  
Two-hybrid Homo sapiens
15 FCGR3A  
Reconstituted Complex Homo sapiens
16 SARAF  
Affinity Capture-MS Homo sapiens
17 PINK1  
Affinity Capture-MS Homo sapiens
18 CRP  
Reconstituted Complex Homo sapiens
19 HES1 3280
Two-hybrid Homo sapiens
20 GK  
Two-hybrid Homo sapiens
21 MATN2 4147
Affinity Capture-MS Homo sapiens
22 CCR1  
Affinity Capture-MS Homo sapiens
23 UBE2U  
Affinity Capture-MS Homo sapiens
24 PHF11 51131
Affinity Capture-MS Homo sapiens
View the network image/svg+xml
 Pathways in which APCS is involved
PathwayEvidenceSource
Amyloid fiber formation TAS Reactome
Metabolism of proteins TAS Reactome





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