Gene Information
Gene NameCTSL
OrganismHomo sapiens (Human)
Gene Length333
Protein NamesProcathepsin L (EC 3.4.22.15) (Cathepsin L1) (Major excreted protein) (MEP) [Cleaved into: Cathepsin L; Cathepsin L heavy chain; Cathepsin L light chain]
Target Namecathepsin l
Target TypeClinical trial target
Gene Age>4290 ( ENSG00000135047 )
Evolutionary StageEukaryota
AlphaFoldDBP07711
Gene CardCTSL
Uniprot IDP07711
PfamPF08246; PF00112
In ASDno
Allosteric Predictionyes (0.537998211)
Ortholog in AnimalsAlpaca_ CTSL ( ortholog_one2one )
Macaque_ CTSL ( ortholog_one2one )
Pig_ CTSL ( ortholog_one2one )
OhnologsNA
ParalogsCTSK, CTSH, TINAGL1, CTSO, CTSW, CTSF, TINAG, CTSB, CTSC, CTSZ, CTSS, CTSV
TissueNA
Tissue SpecificityNA
Pharmacological Animal ModelsNA
Gene Ontology
(biological process)
Gene Ontology
(cellular component)
Gene Ontology
(molecular function)
PDB 1CJL  (X-ray  2.20A  1CS8  (X-ray  1.80A  1ICF  (X-ray  2.00A  1MHW  (X-ray  1.90A  2NQD  (X-ray  1.75A  2VHS  (X-ray  1.50A  2XU1  (X-ray  1.45A  2XU3  (X-ray  0.90A  2XU4  (X-ray  1.12A  2XU5  (X-ray  1.60A  2YJ2  (X-ray  1.15A  2YJ8  (X-ray  1.30A  2YJ9  (X-ray  1.35A  2YJB  (X-ray  1.40A  2YJC  (X-ray  1.14A  3BC3  (X-ray  2.20A  3H89  (X-ray  2.50A  3H8B  (X-ray  1.80A  3H8C  (X-ray  2.50A  3HHA  (X-ray  1.27A  3HWN  (X-ray  2.33A  3IV2  (X-ray  2.20A  3K24  (X-ray  2.50A  3KSE  (X-ray  1.71A  3OF8  (X-ray  2.20A  3OF9  (X-ray  1.76A  4AXL  (X-ray  1.92A  4AXM  (X-ray  2.80A  5F02  (X-ray  1.43A  5I4H  (X-ray  1.42A  5MAE  (X-ray  1.00A  5MAJ  (X-ray  1.00A  5MQY  (X-ray  1.13A  6EZP  (X-ray  1.37A  6EZX  (X-ray  2.34A  6F06  (X-ray  2.02A  6JD0  (X-ray  1.80A  6JD8  (X-ray  1.46A 
DBSNP NA 
Subcellular location [CC]Lysosome {ECO:0000250|UniProtKB:P06797}. Apical cell membrane {ECO:0000250|UniProtKB:P06797};
Peripheral membrane protein {ECO:0000250|UniProtKB:P06797};
Extracellular side {ECO:0000250|UniProtKB:P06797}. Cytoplasmic vesicle, secretory vesicle, chromaffin granule {ECO:0000250|UniProtKB:P25975}. Secreted, extracellular space {ECO:0000250|UniProtKB:P06797}. Secreted {ECO:0000250|UniProtKB:P06797}. Note=Localizes to the apical membrane of thyroid epithelial cells. Released at extracellular space by activated dendritic cells and macrophages. {ECO:0000250|UniProtKB:P06797}.;
[Isoform 2]: Nucleus {ECO:0000269|PubMed:15099520}. Note=Translation initiation at downstream start sites allows the synthesis of isoforms that are devoid of a signal peptide and do not transit through the endoplasmic reticulum to localize to the nucleus (PubMed:15099520). Nuclear location varies during the cell cycle, with higher levels during S phase (PubMed:15099520). {ECO:0000269|PubMed:15099520}.
Mouse PG classificationNA
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