Seroatlas · Human Serome Atlas

ANGPTL3

Angiopoietin-related protein 3

Also known as: ANGL3_HUMAN, ANGPT5

Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene

Protein identityUniProt · HPA

UniProt accession
Q9Y5C1
Gene
ANGPTL3
Ensembl
ENSG00000132855
Chromosome
1
Canonical length
460 aa
Protein class
Disease related genes, FDA approved drug targets, Human disease related genes, Plasma proteins, Predicted secreted proteins
Secretome location
Secreted to blood

OverviewNCBI Gene

This gene encodes a member of a family of secreted proteins that function in angiogenesis. The encoded protein, which is expressed predominantly in the liver, is further processed into an N-terminal coiled-coil domain-containing chain and a C-terminal fibrinogen chain. The N-terminal chain is important for lipid metabolism, while the C-terminal chain may be involved in angiogenesis. Mutations in this gene cause familial hypobetalipoproteinemia type 2. [provided by RefSeq, Aug 2015]

Canonical amino-acid sequenceUniProt

460 residues, UniProt reviewed canonical sequence.

>Q9Y5C1|ANGPTL3
     1  MFTIKLLLFI VPLVISSRID QDNSSFDSLS PEPKSRFAML DDVKILANGL LQLGHGLKDF
    61  VHKTKGQIND IFQKLNIFDQ SFYDLSLQTS EIKEEEKELR RTTYKLQVKN EEVKNMSLEL
   121  NSKLESLLEE KILLQQKVKY LEEQLTNLIQ NQPETPEHPE VTSLKTFVEK QDNSIKDLLQ
   181  TVEDQYKQLN QQHSQIKEIE NQLRRTSIQE PTEISLSSKP RAPRTTPFLQ LNEIRNVKHD
   241  GIPAECTTIY NRGEHTSGMY AIRPSNSQVF HVYCDVISGS PWTLIQHRID GSQNFNETWE
   301  NYKYGFGRLD GEFWLGLEKI YSIVKQSNYV LRIELEDWKD NKHYIEYSFY LGNHETNYTL
   361  HLVAITGNVP NAIPENKDLV FSTWDHKAKG HFNCPEGYSG GWWWHDECGE NNLNGKYNKP
   421  RAKSKPERRR GLSWKSQNGR LYSIKSTKML IHPTDSESFE

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against ANGPTL3 can act on the native protein depends on physical access: surface and secreted proteins are reachable by circulating antibodies, intracellular proteins usually are not.

Antibody reachability
Secreted
Secreted
Yes
Transmembrane segments
0
Mean surface accessibility (rSASA)
0.42
Highest tissue expression
632 nTPM

Expression across tissuesHPA

Tissue

  • liver: 632 nTPM
  • kidney: 50 nTPM
  • stomach: 4.1 nTPM
  • pancreas: 0.2 nTPM
  • pituitary gland: 0.2 nTPM
  • blood vessel: 0.1 nTPM

Single-cell type

  • hepatocytes: 655 nCPM
  • parietal cells: 92 nCPM
  • epididymal efferent duct absorptive cells: 21 nCPM
  • cardiomyocytes: 7.1 nCPM
  • epicardial cells: 6.8 nCPM
  • hepatic stellate cells: 6.5 nCPM

Immune cell

  • basophil: 0 nTPM
  • classical monocyte: 0 nTPM
  • eosinophil: 0 nTPM
  • gdT-cell: 0 nTPM
  • intermediate monocyte: 0 nTPM
  • MAIT T-cell: 0 nTPM

Brain region

  • white matter: 1.7 nTPM
  • basal ganglia: 1.5 nTPM
  • cerebellum: 1.5 nTPM
  • hypothalamus: 1.4 nTPM
  • medulla oblongata: 1.4 nTPM
  • midbrain: 1.4 nTPM

DiseaseUniProt · ClinVar · IEDB · PubMed

Four sources answering four different questions about ANGPTL3.

Disease | AllUniProt

Conditions ANGPTL3 is implicated in, by any mechanism.

Disease | GeneticClinVar

15 pathogenic / likely-pathogenic of 140 ClinVar records.

Conditions with pathogenic or likely-pathogenic variants.

Genetic constraint and essentialitygnomAD · DepMap

Does the body need this protein intact? Low LOEUF or a strong DepMap dependency means loss or blockade of the protein is likely to be felt.

gnomAD LOEUF (loss-of-function intolerance)
1.3
gnomAD pLI
0
gnomAD missense Z
-0.09
DepMap mean gene effect
0.05
DepMap dependency class
selective

Cancer expressionTCGA

Across TCGA tumor cohorts, this protein is over-expressed in roughly 2% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).

OntologyGO

Biological processes

Molecular functions

Cellular components

Protein domainsUniProt · Pfam · InterPro

KeywordsUniProt

InteractionsUniProt · HPA

Protein binding partners of ANGPTL3 in the human serome: UniProt-annotated complex subunits plus reported interactors. Each links to its own Seroatlas record.

Antibody and autoantibody relevanceSeroatlas analysis

Seroatlas reads ANGPTL3 as an antibody target. Whether an autoantibody or antibody against ANGPTL3 could matter depends on whether native ANGPTL3 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.

ANGPTL3 is annotated as secreted, so native ANGPTL3 circulates and is directly accessible to antibodies. Secreted and cell-surface proteins are the autoantibody targets most likely to act like drugs, blocking or depleting the native protein.

Annotation status

The present source text does not explicitly label ANGPTL3 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.

Canonical record: https://seroatlas.com/gene/ANGPTL3. Study-independent annotations aggregated from UniProt, Human Protein Atlas, PubMed, IEDB, Pfam, InterPro, Gene Ontology, AlphaFold, gnomAD, DepMap, ClinVar, TCGA. Catalog release seroatlas-reviewed-human-uniprot-20260313.

Seroatlas is the reference for exploring autoantibody and antibody serology at the human-protein level: the autoreactome and human serome, multiplex serology (HuProt, HuScan, VirScan, PhIP-Seq).

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