A0A5G2R179 · A0A5G2R179_PIG

  • Protein
    Lipoprotein lipase
  • Gene
    LPL
  • Status
    UniProtKB unreviewed (TrEMBL)
  • Amino acids
  • Protein existence
    Inferred from homology
  • Annotation score
    4/5

Function

function

Key enzyme in triglyceride metabolism. Catalyzes the hydrolysis of triglycerides from circulating chylomicrons and very low density lipoproteins (VLDL), and thereby plays an important role in lipid clearance from the blood stream, lipid utilization and storage. Mediates margination of triglyceride-rich lipoprotein particles in capillaries. Recruited to its site of action on the luminal surface of vascular endothelium by binding to GPIHBP1 and cell surface heparan sulfate proteoglycans.

Caution

Lacks conserved residue(s) required for the propagation of feature annotation.

Catalytic activity

Features

Showing features for active site, binding site.

TypeIDPosition(s)Description
Active site162Nucleophile
Active site186Charge relay system
Binding site200Ca2+ (UniProtKB | ChEBI)
Binding site205Ca2+ (UniProtKB | ChEBI)
Active site271Charge relay system

GO annotations

AspectTerm
Cellular Componentchylomicron
Cellular Componentplasma membrane
Cellular Componentvery-low-density lipoprotein particle
Molecular Functionheparin binding
Molecular Functionlipoprotein lipase activity
Molecular Functionmetal ion binding
Biological Processtriglyceride catabolic process

Keywords

Enzyme and pathway databases

Names & Taxonomy

Protein names

  • Recommended name
    Lipoprotein lipase
  • EC number
  • Short names
    LPL

Gene names

    • Name
      LPL

Organism names

  • Taxonomic identifier
  • Organism
  • Strain
    • Duroc
  • Taxonomic lineage
    Eukaryota > Metazoa > Chordata > Craniata > Vertebrata > Euteleostomi > Mammalia > Eutheria > Laurasiatheria > Artiodactyla > Suina > Suidae > Sus

Accessions

  • Primary accession
    A0A5G2R179

Proteomes

Organism-specific databases

Subcellular Location

Cell membrane
; Peripheral membrane protein
Secreted
Note: Newly synthesized LPL binds to cell surface heparan proteoglycans and is then released by heparanase. Subsequently, it becomes attached to heparan proteoglycan on endothelial cells. Locates to the plasma membrane of microvilli of hepatocytes with triglyceride-rich lipoproteins (TRL). Some of the bound LPL is then internalized and located inside non-coated endocytic vesicles.

Keywords

PTM/Processing

Features

Showing features for signal, chain.

TypeIDPosition(s)Description
Signal1-21
ChainPRO_502396919022-452Lipoprotein lipase

Post-translational modification

Tyrosine nitration after lipopolysaccharide (LPS) challenge down-regulates the lipase activity.

Keywords

Expression

Gene expression databases

Interaction

Subunit

Homodimer. Interacts with APOC2; the interaction activates LPL activity in the presence of lipids.

Family & Domains

Features

Showing features for domain.

TypeIDPosition(s)Description
Domain344-452PLAT

Sequence similarities

Belongs to the AB hydrolase superfamily. Lipase family.

Keywords

Phylogenomic databases

Family and domain databases

Sequence

  • Sequence status
    Complete
  • Length
    452
  • Mass (Da)
    50,579
  • Last updated
    2019-12-11 v1
  • Checksum
    A2D7594401E50EEC
MESKALLLVALSVWLQSLIVSREGLATADRISGGRDFTDIESKFALRTPEDTVEDTCHLIPGVTESVANCHFNHSSKTFVVIHGWTVTGMYESWVPKLVAALYKREPDSNVIVVDWLSRAQQHYPISAGYTKLVGQDVATFIDWMADEFNYPPNNVHLLGYSLGAHAAGIAGSLTKKKVNRITGLDPAGPNFEYAEAPSRLSPDDADFVDVLHTFTRGSPGRSIGIQKPVGHVDIYPNGGTFQPGCNIGEAIRVIAERGLGDVDQLVKCSHERSIHLFIDSLLNEENPSKAYRCNSKEAFEKGLCLSCRKNRCNNLGYEINKVRAKRSSKMYLKTRAQMPYKVFHYQVKMRFSGTESDTHTNQAFEISLYGTVAESENIPFTLPEVSTNKTYSFLIYTEVDIGELLMLKLKWVSDSYFSWSNWWSSPGFAIEKIRVKAGETQKKASNIQVRR

Computationally mapped potential isoform sequences

There are 2 potential isoforms mapped to this entry

View all
EntryEntry nameGene nameLength
A0A480KVF0A0A480KVF0_PIGLPL478
A0A5G2QQY2A0A5G2QQY2_PIGLPL463

Keywords

Genome annotation databases

Similar Proteins

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