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Overview

Uniprot IDP05413
Protein NameFatty acid-binding protein, heart
Gene NameFABP3
OrganismHomo sapiens

Kla Sites from experimental identification

Position Flanking peptide
59 LKTHSTFKNTEISFK
91 IVTLDGGKLVHLQKW
97 GKLVHLQKWDGQETT

Function

FABPs are thought to play a role in the intracellular transport of long-chain fatty acids and their acyl-CoA esters

Protein Sequence

10 MVDAFLGTWK 20 LVDSKNFDDY 30 MKSLGVGFAT 40 RQVASMTKPT 50 TIIEKNGDIL 60 TLKTHSTFKN 70 TEISFKLGVE 80 FDETTADDRK 90 VKSIVTLDGG 100 KLVHLQKWDG 110 QETTLVRELI 120 DGKLILTLTH 130 GTAVCTRTYE KEA

Gene Ontology

Classification GO ID Description
Cellular Component GO:0005829 cytosol
Cellular Component GO:0070062 extracellular exosome
Cellular Component GO:0005615 extracellular space
Cellular Component GO:0005634 nucleus
Cellular Component GO:0016528 sarcoplasm
Molecular Function GO:0008092 cytoskeletal protein binding
Molecular Function GO:0050543 icosatetraenoic acid binding
Molecular Function GO:0005319 lipid transporter activity
Molecular Function GO:0036041 long-chain fatty acid binding
Molecular Function GO:0005324 long-chain fatty acid transmembrane transporter activity
Molecular Function GO:0070538 oleic acid binding
Biological Process GO:0042632 cholesterol homeostasis
Biological Process GO:0006631 fatty acid metabolic process
Biological Process GO:0032365 intracellular lipid transport
Biological Process GO:0015909 long-chain fatty acid transport
Biological Process GO:0008285 negative regulation of cell population proliferation
Biological Process GO:0055091 phospholipid homeostasis
Biological Process GO:0140214 positive regulation of long-chain fatty acid import into cell
Biological Process GO:0071073 positive regulation of phospholipid biosynthetic process
Biological Process GO:0046320 regulation of fatty acid oxidation
Biological Process GO:0070542 response to fatty acid
Biological Process GO:0032868 response to insulin
Biological Process GO:0009410 response to xenobiotic stimulus
Biological Process GO:0019433 triglyceride catabolic process

Reference

[1] Yang Z, Yan C, Ma J, Peng P, Ren X et al.. Lactylome analysis suggests lactylation-dependent mechanisms of metabolic adaptation in hepatocellular carcinoma.. Nat Metab 5(1):61-79. 2023 Jan. PMID: 36593272.

[2] Shi CM, Wang QC, Li XL, Yang YH, Tang XY et al.. Global Profiling of Protein Lactylation in Human Hippocampi.. Proteomics Clin Appl 19(2):e202400061. 2025 Mar. PMID: 39610256.