PCOLCE2

gene
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Also known as PCPE2

Summary

PCOLCE2 (procollagen C-endopeptidase enhancer 2, HGNC:8739) is a protein-coding gene on chromosome 3q23, encoding Procollagen C-endopeptidase enhancer 2 (Q9UKZ9). Binds to the C-terminal propeptide of types I and II procollagens and may enhance the cleavage of that propeptide by BMP1.

Enables collagen binding activity; heparin binding activity; and peptidase activator activity. Predicted to act upstream of or within cellular response to leukemia inhibitory factor. Predicted to be located in extracellular region. Predicted to be part of collagen trimer.

Source: NCBI Gene 26577 — RefSeq curated summary.

At a glance

  • GWAS associations: 5
  • Clinical variants (ClinVar): 87 total
  • MANE Select transcript: NM_013363

Identifiers

Gene identifiers

FieldValue
HGNC IDHGNC:8739
Approved symbolPCOLCE2
Nameprocollagen C-endopeptidase enhancer 2
Location3q23
Locus typegene with protein product
StatusApproved
AliasesPCPE2
Ensembl geneENSG00000163710
Ensembl biotypeprotein_coding
OMIM607064
Entrez26577

Gene structure

Transcript identifiers

Ensembl transcripts: 16 — 8 protein_coding, 3 protein_coding_CDS_not_defined, 3 retained_intron, 2 nonsense_mediated_decay

ENST00000295992, ENST00000461818, ENST00000470310, ENST00000470795, ENST00000480473, ENST00000483454, ENST00000483986, ENST00000485766, ENST00000493733, ENST00000495732, ENST00000648195, ENST00000890789, ENST00000918017, ENST00000964678, ENST00000964679, ENST00000964680

RefSeq mRNA: 1 — MANE Select: NM_013363 NM_013363

CCDS: CCDS3127

Canonical transcript exons

ENST00000295992 — 9 exons

ExonStartEnd
ENSE00001077577142817874142818465
ENSE00001136473142888814142889083
ENSE00003484316142820878142821045
ENSE00003500871142848217142848472
ENSE00003550725142838770142838906
ENSE00003601685142829692142829846
ENSE00003602030142842924142843048
ENSE00003665621142823532142823615
ENSE00003675817142887669142887777

Expression profiles

Bgee: expression breadth ubiquitous, 244 present calls, max score 99.76.

FANTOM5 (CAGE): breadth ubiquitous, TPM avg 11.4899 / max 788.2511, expressed in 1043 samples.

FANTOM5 promoters (9 alternative TSS)

Promoter IDTPM avgSamples expressed
448664.0667684
448602.6961731
448621.9296326
448591.1021389
448640.5527197
448630.5476188
448610.2130104
448650.196786
448580.1852112

Top tissues by expression

284 total, by Bgee expression score (0-100, higher = more expressed):

TissueAnatomy IDExpression scoreQuality
calcaneal tendonUBERON:000370199.76gold quality
tibiaUBERON:000097999.61gold quality
synovial jointUBERON:000221799.44gold quality
renal glomerulusUBERON:000007499.09gold quality
tendon of biceps brachiiUBERON:000818899.09gold quality
right coronary arteryUBERON:000162599.00gold quality
metanephric glomerulusUBERON:000473698.95gold quality
tendonUBERON:000004398.74gold quality
pericardiumUBERON:000240798.50gold quality
right atrium auricular regionUBERON:000663198.47gold quality
descending thoracic aortaUBERON:000234598.42gold quality
cardiac atriumUBERON:000208198.31gold quality
coronary arteryUBERON:000162198.26gold quality
left coronary arteryUBERON:000162698.21gold quality
thoracic aortaUBERON:000151598.04gold quality
ascending aortaUBERON:000149698.01gold quality
adipose tissueUBERON:000101397.28gold quality
saphenous veinUBERON:000731897.22gold quality
vena cavaUBERON:000408797.20gold quality
parietal pleuraUBERON:000240097.11gold quality
apex of heartUBERON:000209897.05gold quality
connective tissueUBERON:000238497.04gold quality
subcutaneous adipose tissueUBERON:000219096.97gold quality
aortaUBERON:000094796.80gold quality
adipose tissue of abdominal regionUBERON:000780896.56gold quality
omental fat padUBERON:001041496.44gold quality
peritoneumUBERON:000235896.40gold quality
tracheaUBERON:000312696.36gold quality
layer of synovial tissueUBERON:000761696.20gold quality
urethraUBERON:000005796.18gold quality

Single-cell (SCXA)

Detected in 5 experiment(s), a significant marker in 4.

ExperimentMarker?Max mean expression
E-MTAB-8322yes2398.65
E-CURD-119yes26.28
E-HCAD-1yes17.34
E-GEOD-111727no31.73
E-ANND-3no0.00

Regulation

Is transcription factor: no

miRNA regulators (miRDB)

26 targeting PCOLCE2, top 30 by miRDB confidence (max_score; target_count = how many genes the miRNA targets in total — lower means more specific):

miRNAMax scoreAvg scoremiRNA target_count
HSA-MIR-32-5P99.9875.211964
HSA-MIR-92A-3P99.9875.211960
HSA-MIR-92B-3P99.9875.251955
HSA-MIR-25-3P99.9874.601817
HSA-MIR-363-3P99.9874.721821
HSA-MIR-367-3P99.9874.831819
HSA-MIR-590-3P99.9674.346478
HSA-MIR-380-3P99.8970.181978
HSA-MIR-450399.8571.451869
HSA-MIR-489-3P99.8066.46839
HSA-MIR-4694-3P99.7969.532640
HSA-MIR-432599.4972.201342
HSA-MIR-317199.4969.06776
HSA-MIR-377-3P99.3770.181905
HSA-MIR-3925-5P99.2167.901466
HSA-MIR-4709-3P98.8868.041594
HSA-MIR-4477A98.8369.752952
HSA-MIR-501-5P98.7768.881328
HSA-MIR-500A-5P98.7669.131241
HSA-MIR-361198.7668.761290
HSA-MIR-6761-5P98.7168.031504
HSA-MIR-6792-5P98.3968.161330
HSA-MIR-6881-3P98.0468.241777
HSA-MIR-770397.6467.00965
HSA-MIR-7161-3P96.7968.79798
HSA-MIR-426894.4564.09819

Literature-anchored findings (GeneRIF, showing 4)

  • Assignment of Pcolce2 gene, which encodes procollagen C-proteinase enhancer protein 2, to human chromosome 3q23. (PMID:12063410)
  • PCPE2 is shown to be a glycoprotein that differs markedly in the nature of its glycosylation from that of PCPE1 (PMID:12393877)
  • Data indicate that PCPE2 accelerates the proteolytic processing of pro-apolipoprotein (apo) AI by enhancing the cleavage of the hexapeptide extension present at the N terminus of apoAI. (PMID:19237735)
  • Procollagen C-endopeptidase protein 2, atherosclerosis and HDL cholesteryl ester catabolism. [Review] (PMID:26218419)

Cross-species orthologs

4 orthologs

OrganismSymbolGene ID
danio_reriopcolce2aENSDARG00000008450
danio_reriopcolce2bENSDARG00000055575
mus_musculusPcolce2ENSMUSG00000015354
rattus_norvegicusPCOLCE2ENSRNOG00000046848

Paralogs (35): NRXN3 (ENSG00000021645), TLL1 (ENSG00000038295), CP (ENSG00000047457), DCBLD2 (ENSG00000057019), HEPH (ENSG00000089472), TLL2 (ENSG00000095587), NRP1 (ENSG00000099250), PCOLCE (ENSG00000106333), CNTNAP3 (ENSG00000106714), CUBN (ENSG00000107611), CNTNAP1 (ENSG00000108797), NRXN2 (ENSG00000110076), MEP1A (ENSG00000112818), NRP2 (ENSG00000118257), CUZD1 (ENSG00000138161), MFGE8 (ENSG00000140545), MEP1B (ENSG00000141434), PDGFC (ENSG00000145431), CNTNAP4 (ENSG00000152910), CNTNAP3B (ENSG00000154529), CNTNAP5 (ENSG00000155052), CDCP2 (ENSG00000157211), EDIL3 (ENSG00000164176), NETO1 (ENSG00000166342), BMP1 (ENSG00000168487), PDGFD (ENSG00000170962), NETO2 (ENSG00000171208), CNTNAP2 (ENSG00000174469), NRXN1 (ENSG00000179915), HEPHL1 (ENSG00000181333), F8 (ENSG00000185010), ASTL (ENSG00000188886), F5 (ENSG00000198734), MFRP (ENSG00000235718), CNTNAP3C (ENSG00000283378)

Protein

Protein identifiers

Procollagen C-endopeptidase enhancer 2Q9UKZ9 (reviewed: Q9UKZ9)

Alternative names: Procollagen COOH-terminal proteinase enhancer 2

All UniProt accessions (5): A0A3B3ITE8, C9JYX9, Q9UKZ9, H7C520, H7C5D5

UniProt curated annotations — full annotation on UniProt →

Function. Binds to the C-terminal propeptide of types I and II procollagens and may enhance the cleavage of that propeptide by BMP1.

Subunit / interactions. Interacts with heparin with high affinity, and type I or II collagen.

Subcellular location. Secreted.

Tissue specificity. Highly expressed in the heart, trabecular meshwork, pituitary gland, bladder, mammary gland, trachea and placenta and weakly expressed in the brain. Expressed in cartilage.

Post-translational modifications. O-glycosylated; contains sialic acid.

RefSeq proteins (1): NP_037495* (*=MANE)

Domains & families (InterPro)

IDNameType
IPR000859CUB_domDomain
IPR001134Netrin_domainDomain
IPR008993TIMP-like_OB-foldHomologous_superfamily
IPR018933Netrin_module_non-TIMPDomain
IPR035814NTR_PCOLCEDomain
IPR035914Sperma_CUB_dom_sfHomologous_superfamily

Pfam: PF00431, PF01759

UniProt features (15 total): disulfide bond 7, domain 3, sequence variant 2, signal peptide 1, chain 1, glycosylation site 1

Structure

Experimental structures (PDB)

0 structures.

Predicted structure (AlphaFold)

ModelpLDDTFraction very-high
AF-Q9UKZ9-F182.000.46

Functional residue map

Curated UniProt residues grouped by drug-discovery relevance — catalytic, ligand-binding, modification, and mutation-validated positions. Source: UniProtKB sequence features.

Disulfide bonds (7): 297–364, 301–367, 312–415, 33–59, 86–107, 154–181, 208–231

Glycosylation sites (1): 355

Function

Pathways and Gene Ontology

Reactome pathways

1 pathways

IDPathway
R-HSA-1650814Collagen biosynthesis and modifying enzymes

MSigDB gene sets: 164 (showing top): GSE18804_SPLEEN_MACROPHAGE_VS_BRAIN_TUMORAL_MACROPHAGE_DN, GSE18804_SPLEEN_MACROPHAGE_VS_TUMORAL_MACROPHAGE_DN, GOBP_RESPONSE_TO_PEPTIDE, GAUSSMANN_MLL_AF4_FUSION_TARGETS_A_DN, ACEVEDO_NORMAL_TISSUE_ADJACENT_TO_LIVER_TUMOR_DN, CHANDRAN_METASTASIS_DN, CLASPER_LYMPHATIC_VESSELS_DURING_METASTASIS_DN, SHETH_LIVER_CANCER_VS_TXNIP_LOSS_PAM4, BILD_E2F3_ONCOGENIC_SIGNATURE, RIGGI_EWING_SARCOMA_PROGENITOR_DN, SCHAEFFER_PROSTATE_DEVELOPMENT_48HR_UP, MCBRYAN_PUBERTAL_BREAST_5_6WK_UP, ONDER_CDH1_TARGETS_2_UP, RICKMAN_HEAD_AND_NECK_CANCER_A, GOMF_GLYCOSAMINOGLYCAN_BINDING

GO Biological Process (1): cellular response to leukemia inhibitory factor (GO:1990830)

GO Molecular Function (4): collagen binding (GO:0005518), heparin binding (GO:0008201), peptidase activator activity (GO:0016504), protein binding (GO:0005515)

GO Cellular Component (1): extracellular region (GO:0005576)

Reactome top-level categories

Rollup of top-1 pathways:

CategoryPathways
Collagen formation1

GO top-level categories

Rollup of top GO terms by namespace:

CategoryTerms
cellular response to cytokine stimulus1
response to leukemia inhibitory factor1
protein-containing complex binding1
glycosaminoglycan binding1
sulfur compound binding1
enzyme activator activity1
peptidase activity1
peptidase regulator activity1
binding1
cellular anatomical structure1

Protein interactions and networks

STRING

1102 interactions, top by confidence (×1000):

Protein AProtein BPartner UniProtScore
PCOLCE2PLS1Q14651826
PCOLCE2NTSR1P30989759
PCOLCE2TRPC1P48995666
PCOLCE2SCARB1Q8WTV0507
PCOLCE2COL1A1P02452459
PCOLCE2GPC6Q9Y625449
PCOLCE2THBS1P07996442
PCOLCE2COL6A1P12109438
PCOLCE2CMTM4Q8IZR5425
PCOLCE2CLUP10909420
PCOLCE2CILPO75339412
PCOLCE2FOXL2NBQ6ZUU3411
PCOLCE2COL6A2P12110410
PCOLCE2SERPINH1P29043400
PCOLCE2PI16Q6UXB8390

IntAct

26 interactions, top by confidence:

ABTypeScore
OLFM1OLFM2psi-mi:“MI:0914”(association)0.640
PCOLCE2ZWINTpsi-mi:“MI:0915”(physical association)0.560
PCOLCE2ZWINTpsi-mi:“MI:0914”(association)0.560
DKK3NME4psi-mi:“MI:0914”(association)0.530
ALPGALPPpsi-mi:“MI:0914”(association)0.530
SLC25A51PCOLCE2psi-mi:“MI:0915”(physical association)0.400
TRADDHNRNPCL2psi-mi:“MI:0914”(association)0.350
SCGB2A2GXYLT2psi-mi:“MI:0914”(association)0.350
SUSD4CCDC85Cpsi-mi:“MI:0914”(association)0.350
PSG1IKBKBpsi-mi:“MI:0914”(association)0.350
OLFM1psi-mi:“MI:0914”(association)0.350
repMYCBP2psi-mi:“MI:0914”(association)0.350
PDGFRAGXYLT2psi-mi:“MI:0914”(association)0.350
CCL3KRBA1psi-mi:“MI:0914”(association)0.350
ST14LIPT2psi-mi:“MI:0914”(association)0.350
SCGB2A2RTL8Cpsi-mi:“MI:0914”(association)0.350
CCL3L1QSOX1psi-mi:“MI:0914”(association)0.350
TMPRSS13TOR1Apsi-mi:“MI:0914”(association)0.350
HPNTOR1Apsi-mi:“MI:0914”(association)0.350
VNN1SMAD7psi-mi:“MI:0914”(association)0.350
PCOLCE2KLK7psi-mi:“MI:0914”(association)0.350
AFG2AESYT2psi-mi:“MI:0914”(association)0.350
AFG2BMMP24OSpsi-mi:“MI:0914”(association)0.350
SLC17A9PIPSLpsi-mi:“MI:0914”(association)0.350

BioGRID (36): STRN4 (Affinity Capture-MS), ZWINT (Affinity Capture-MS), STRN3 (Affinity Capture-MS), STRN (Affinity Capture-MS), PCOLCE2 (Affinity Capture-MS), PCOLCE2 (Affinity Capture-MS), PCOLCE2 (Affinity Capture-MS), PCOLCE2 (Affinity Capture-MS), PCOLCE2 (Affinity Capture-MS), PCOLCE2 (Affinity Capture-MS), ZWINT (Affinity Capture-MS), PCOLCE2 (Affinity Capture-MS), PCOLCE2 (Affinity Capture-MS), PCOLCE2 (Affinity Capture-MS), PCOLCE2 (Synthetic Lethality)

ESM2 similar proteins: A8WCC4, D3ZTD8, J3RZ81, O14786, O35276, O35375, O57472, O60462, P07224, P07225, P21956, P28824, P48740, P53813, P60755, P60756, P70490, P79795, P85171, P97333, P98064, P98118, Q08761, Q0PMG2, Q0WYX8, Q12866, Q13591, Q16819, Q28520, Q2VWQ2, Q60805, Q62217, Q62919, Q7Z553, Q86TH1, Q8BR86, Q8CHN8, Q8CI19, Q8IZU9, Q8NFP4

Diamond homologs: A0A0C5PRQ1, A0FKN6, A0JNA2, A8Q2D1, C6K2K4, C9D7R3, D2KBH9, D5FM34, D5FM37, D5FM38, K7Z9Q9, O16977, O17264, O35276, O35375, O43897, O57382, O57460, O60462, O60494, O70244, P07584, P0DM61, P0DM62, P13497, P28825, P28826, P31579, P31580, P31581, P42674, P55112, P55113, P55114, P55115, P84748, P91828, P98060, P98061, P98068

SIGNOR signaling

0 interactions.

Disease & clinical

Clinical variants and AI predictions

ClinVar

87 variants total. Per-class counts are floors (≥ shown; pagination cap):

ClassificationCount (floor)
Pathogenic0
Likely pathogenic0
Uncertain significance77
Likely benign0
Benign0

Top pathogenic / likely-pathogenic (0)

SpliceAI

1797 predictions. Top by Δscore:

VariantEffectΔscore
3:142820874:TCA:Tdonor_loss1.0000
3:142820875:CA:Cdonor_loss1.0000
3:142820876:ACCTC:Adonor_loss1.0000
3:142820877:CCT:Cdonor_gain1.0000
3:142821041:TAATA:Tacceptor_gain1.0000
3:142821042:AATA:Aacceptor_gain1.0000
3:142821043:ATA:Aacceptor_gain1.0000
3:142821044:TA:Tacceptor_gain1.0000
3:142821044:TAC:Tacceptor_loss1.0000
3:142821045:AC:Aacceptor_loss1.0000
3:142821046:C:CCacceptor_gain1.0000
3:142821047:T:Cacceptor_loss1.0000
3:142829690:AC:Adonor_gain1.0000
3:142829691:CC:Cdonor_gain1.0000
3:142838761:GCTAC:Gdonor_loss1.0000
3:142838762:CTACT:Cdonor_loss1.0000
3:142838763:TACTT:Tdonor_loss1.0000
3:142838764:ACT:Adonor_loss1.0000
3:142838765:CTT:Cdonor_loss1.0000
3:142838766:T:TCdonor_loss1.0000
3:142838767:T:TCdonor_loss1.0000
3:142838768:A:ACdonor_gain1.0000
3:142838768:A:Gdonor_loss1.0000
3:142838768:ACG:Adonor_gain1.0000
3:142838769:C:CAdonor_gain1.0000
3:142838769:CG:Cdonor_gain1.0000
3:142838769:CGC:Cdonor_gain1.0000
3:142838769:CGCA:Cdonor_gain1.0000
3:142838769:CGCAG:Cdonor_gain1.0000
3:142838796:T:Adonor_gain1.0000

AlphaMissense

2729 scored. Top likely-pathogenic:

VariantProtein changeam_pathogenicity
3:142829778:C:TG260E0.999
3:142829779:C:AG260W0.999
3:142829820:A:GL246P0.999
3:142838848:T:AD211V0.999
3:142838849:C:AD211Y0.999
3:142838849:C:GD211H0.999
3:142842948:C:AW183C0.999
3:142842948:C:GW183C0.999
3:142842954:A:CC181W0.999
3:142842955:C:GC181S0.999
3:142842955:C:TC181Y0.999
3:142842956:A:GC181R0.999
3:142842956:A:TC181S0.999
3:142848255:A:CF137C0.999
3:142848255:A:GF137S0.999
3:142848345:C:GC107S0.999
3:142848345:C:TC107Y0.999
3:142848346:A:TC107S0.999
3:142848399:T:AD89V0.999
3:142848399:T:GD89A0.999
3:142848400:C:AD89Y0.999
3:142848400:C:GD89H0.999
3:142848447:A:GL73P0.999
3:142887678:C:AW61C0.999
3:142887678:C:GW61C0.999
3:142887685:C:GC59S0.999
3:142887686:A:TC59S0.999
3:142829775:A:GF261S0.998
3:142829799:T:AD253V0.998
3:142829808:A:GF250S0.998

dbSNP variants (sampled 300 via entrez): RS1000010847 (3:142824002 G>A), RS1000012598 (3:142873890 C>T), RS1000075500 (3:142880348 T>C,G), RS1000075550 (3:142829624 T>A,C), RS1000079428 (3:142867641 G>A), RS1000084425 (3:142844721 A>G), RS1000144185 (3:142873557 G>T), RS1000148721 (3:142879452 A>G), RS1000260482 (3:142873813 C>G,T), RS1000324721 (3:142890943 C>A), RS1000401078 (3:142824123 A>C,G), RS1000485097 (3:142854610 T>C), RS1000531441 (3:142829935 C>A,T), RS1000617673 (3:142825744 A>G), RS1000628434 (3:142831454 A>C)

Disease associations

OMIM: gene MIM:607064 | disease phenotypes:

GenCC curated gene-disease

Mondo (0):

Orphanet (0):

HPO phenotypes

0 total (0 of 0 shown, HPO-id order):

GWAS associations

5 associations (top):

StudyTraitp-value
GCST002712_1Red blood cell fatty acid levels1.000000e-10
GCST006585_1677Blood protein levels3.000000e-59
GCST006979_304Heel bone mineral density2.000000e-10
GCST007096_209Pulse pressure4.000000e-11
GCST90011898_151Alanine aminotransferase levels3.000000e-11

EFO canonical traits (3, from GWAS)

EFO IDTrait name
EFO:0006808arachidonic acid measurement
EFO:0009270heel bone mineral density
EFO:0005763pulse pressure measurement

Drugs & pharmacology

Drug and pharmacology data

Is drug target: no

PharmGKB: 1 entry (VIP=true, CPIC=false)

CTD chemical–gene interactions

50 total (human), top 30 by PubMed support.

ChemicalActions (top 5)PubMed papers
Estradiolaffects cotreatment, decreases expression, increases expression, increases reaction4
Tetrachlorodibenzodioxinaffects cotreatment, decreases expression, increases expression4
trichostatin Aaffects cotreatment, increases expression3
sodium arseniteincreases abundance, increases expression, decreases expression, affects cotreatment3
Valproic Acidaffects expression, increases expression3
Vorinostataffects cotreatment, increases expression2
Panobinostataffects cotreatment, increases expression2
Benzo(a)pyreneaffects methylation, decreases expression2
Phenylmercuric Acetateaffects cotreatment, decreases expression2
Cyclosporinedecreases expression2
Aflatoxin B1affects methylation, decreases expression2
aristolochic acid Idecreases expression1
manganese chlorideincreases abundance, increases expression, affects cotreatment1
potassium chromate(VI)increases expression1
aflatoxin B2decreases methylation1
avobenzoneincreases expression1
CGP 52608affects binding, increases reaction1
4-(5-benzo(1,3)dioxol-5-yl-4-pyridin-2-yl-1H-imidazol-2-yl)benzamideaffects cotreatment, increases expression, decreases expression1
ICG 001decreases expression1
abrinedecreases expression1
2,2’,4,4’-tetrabromodiphenyl etherincreases expression1
dorsomorphinaffects cotreatment, increases expression, decreases expression1
4-(4-((5-(4,5-dimethyl-2-nitrophenyl)-2-furanyl)methylene)-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl)benzoic acidincreases expression1
Temozolomidedecreases expression1
Pioglitazoneincreases expression1
Sunitinibdecreases expression1
Zoledronic Aciddecreases expression1
Arsenic Trioxidedecreases expression1
Acetaminophendecreases expression1
Air Pollutantsdecreases expression, increases abundance1

Cellosaurus cell lines

1 cell lines: 1 cancer cell line

First 10 cell lines (id-ordered, not curated):

CellosaurusNameCategorySex
CVCL_B2A3Abcam HeLa PCOLCE2 KOCancer cell lineFemale

Clinical trials (associated diseases)

0 trials via MONDO — disease-level, not drug-specific.

No linked Atlas pages yet — the cross-entity mesh grows as the corpus expands.