PCSK9 Gene Complete Identifier and Functional Mapping Reference

Provide a comprehensive cross-database identifier and functional mapping reference for human PCSK9. This should serve as a definitive lookup resource …

Provide a comprehensive cross-database identifier and functional mapping reference for human PCSK9. This should serve as a definitive lookup resource for researchers. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ SECTION 1: GENE IDENTIFIERS ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Provide ALL gene-level database identifiers: - HGNC ID and approved symbol - Ensembl gene ID (ENSG) - NCBI Entrez Gene ID - OMIM gene/locus ID - Genomic location: chromosome, start position, end position, strand ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ SECTION 2: TRANSCRIPT IDENTIFIERS ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ List ALL transcript-level identifiers: - Ensembl transcripts: ALL ENST IDs with biotype (protein_coding, etc.) How many total transcripts? - RefSeq transcripts: ALL NM_ mRNA accessions Mark which is MANE Select (canonical clinical standard) - CCDS IDs: ALL consensus coding sequence identifiers For the CANONICAL/MANE SELECT transcript: - List ALL exon IDs (ENSE) with genomic coordinates - Total exon count ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ SECTION 3: PROTEIN IDENTIFIERS ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ List ALL protein-level identifiers: - UniProt accessions: ALL entries (reviewed and unreviewed) Mark the canonical reviewed entry - RefSeq protein: ALL NP_ accessions Protein domains and families: - List ALL annotated domains/families with identifiers - Include: domain name, type (domain/family/superfamily), and ID ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ SECTION 4: STRUCTURE IDENTIFIERS ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Experimental structures: - List ALL PDB structure IDs - For each: experimental method (X-ray, NMR, Cryo-EM) and resolution - Total PDB structure count Predicted structures: - AlphaFold model ID and confidence metrics (pLDDT) ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ SECTION 5: CROSS-SPECIES ORTHOLOGS ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ List orthologous genes in key model organisms (where available): - Mouse (Mus musculus): gene ID, symbol - Rat (Rattus norvegicus): gene ID, symbol - Zebrafish (Danio rerio): gene ID, symbol - Fruit fly (Drosophila melanogaster): gene ID, symbol - Worm (C. elegans): gene ID, symbol - Yeast (S. cerevisiae): gene ID, symbol ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ SECTION 6: CLINICAL VARIANTS & AI PREDICTIONS ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Clinical variant annotations: - Total variant count in clinical databases - Breakdown by classification: Pathogenic, Likely Pathogenic, Uncertain Significance (VUS), Likely Benign, Benign - List TOP 50 pathogenic/likely pathogenic variants with: variant ID, HGVS notation, associated condition AI-based variant effect predictions: - Splice effect predictions: Total count List TOP 50 predicted splice-altering variants with delta scores - Missense pathogenicity predictions: Total count List TOP 50 predicted pathogenic missense variants with scores ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ SECTION 7: BIOLOGICAL PATHWAYS & GENE ONTOLOGY ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Pathway membership: - List ALL biological pathways this gene participates in - Include pathway IDs and names - Total pathway count Gene Ontology annotations: - Biological Process: count and TOP 20 terms with IDs - Molecular Function: count and TOP 20 terms with IDs - Cellular Component: count and TOP 20 terms with IDs ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ SECTION 8: PROTEIN INTERACTIONS & MOLECULAR NETWORKS ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Protein-protein interactions: - Total interaction count - List TOP 50 highest-confidence interacting proteins with scores Protein similarity (evolutionary and structural): - Structural/embedding similarity: How many similar proteins? List TOP 20 with similarity scores - Sequence homology: How many homologous proteins? List TOP 20 with identity/similarity scores ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ SECTION 9: TRANSCRIPTION FACTOR REGULATORY DATA ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ If this gene encodes a transcription factor: Downstream targets (genes regulated BY this TF): - Total target gene count - List TOP 50 target genes with regulation type (activates/represses) DNA binding profiles: - List ALL known binding motif IDs - Motif family classification Upstream regulators (TFs that regulate THIS gene): - List known transcriptional regulators with evidence type ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ SECTION 10: DRUG & PHARMACOLOGY DATA ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ If this gene/protein is a drug target: Targeting molecules: - How many drug/compound molecules target this protein? - List TOP 30 molecules by development phase - Include: molecule ID, name, mechanism, highest development phase Clinical trials: - How many clinical trials involve drugs targeting this gene? - List TOP 20 trials with: trial ID, phase, status, intervention Pharmacogenomics: - Known drug-gene interactions affecting drug response - Dosing guidelines if any exist ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ SECTION 11: EXPRESSION PROFILES ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Tissue expression: - Which tissues express this gene most highly? - List TOP 30 tissues with expression scores/levels - Note any tissue-specific or tissue-enriched patterns Cell type expression: - Which cell types show highest expression? - List TOP 30 cell types with expression scores - Note any cell type-specific patterns Single-cell expression data (if available): - Which single-cell datasets/experiments include this gene? - Notable cell population patterns ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ SECTION 12: DISEASE ASSOCIATIONS ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Mendelian/monogenic disease links: - What diseases are caused by mutations in this gene? - List ALL associated diseases with: disease name, disease ID, inheritance pattern, evidence level Phenotype associations: - What clinical phenotypes are associated with this gene? - List TOP 50 phenotype terms with IDs Complex trait associations (GWAS): - What traits/diseases are linked via genome-wide association studies? - List TOP 30 GWAS associations with: trait, study ID, p-value, effect size if available ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ FORMATTING REQUIREMENTS ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ - Present each section with clear headers - Use tables for listing multiple items - Always include COUNTS for every category - For lists with >50 items: show total count + TOP 50 - For lists with <50 items: show ALL items - Always include database identifiers (IDs), not just names - Mark canonical/primary/reviewed entries where applicable - If a section has no data available, state "No data available" rather than omitting the section

Structured Data Sources

This answer was generated using Claude Opus 4.5 + BioBTree MCP, querying 34 biological databases.

Further analyze this answer or run your own queries with BioBTree MCP.

Datasets: alphafold, alphamissense, bgee, ccds, chembl_molecule, chembl_target, cl, clinical_trials, clinvar, collectri, diamond_similarity, ensembl, entrez, esm2_similarity, exon, gencc, go, gwas, hgnc, hpo, intact, interpro, mim, orphanet, ortholog, pdb, pharmgkb_gene, reactome, refseq, spliceai, string_interaction, transcript, uberon, uniprot
Generated: 2026-04-02 — For the latest data, query BioBTree directly via MCP or API.
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PCSK9

PCSK9 - Comprehensive Cross-Database Identifier and Functional Mapping Reference Human PCSK9 (Proprotein Convertase Subtilisin/Kexin Type 9)


Section 1: Gene Identifiers

DatabaseIdentifierNotes
HGNC IDHGNC:20001Approved
HGNC SymbolPCSK9Approved symbol
Full NameProprotein convertase subtilisin/kexin type 9
Ensembl GeneENSG00000169174
NCBI Entrez Gene255738
OMIM607786Gene/locus
Gene TypeProtein-coding gene
Genomic Location (GRCh38):
AttributeValue
Chromosome1
Cytogenetic Band1p32.3
Start Position55,039,445
End Position55,064,852
Strand+ (forward)
Genomic AccessionNC_000001.11
Gene Aliases: FH3, FHCL3, HCHOLA3, LDLCQ1, NARC-1, NARC1, PC9 Previous Symbols: HCHOLA3 Gene Family: Proprotein convertase subtilisin/kexin family

Section 2: Transcript Identifiers Ensembl Transcripts Total transcript count: 12

Transcript IDBiotypeStartEndStrand
ENST00000302118protein_coding5503954855064852+
ENST00000490692retained_intron5505093455064850+
ENST00000673662protein_coding_CDS_not_defined5504396655047332+
ENST00000673726nonsense_mediated_decay5503944755064852+
ENST00000673903protein_coding5504029555064797+
ENST00000673913nonsense_mediated_decay5503946255064852+
ENST00000710286protein_coding5503945655064852+
ENST00000713785nonsense_mediated_decay5503944555064852+
ENST00000713786protein_coding5503946855064852+
ENST00000713787nonsense_mediated_decay5503955055064852+
ENST00000854983protein_coding5503954855064852+
ENST00000923576protein_coding5503953855064849+
RefSeq Transcripts (Human PCSK9) mRNA Transcripts:
RefSeq IDTypeStatusMANE Select
NM_174936mRNAREVIEWED✓ Yes (Canonical)
NM_001407240mRNAREVIEWEDNo
NM_001407241mRNAREVIEWEDNo
NM_001407242mRNAREVIEWEDNo
NM_001407243mRNAREVIEWEDNo
NM_001407244mRNAREVIEWEDNo
NM_001407245mRNAREVIEWEDNo
NM_001407246mRNAREVIEWEDNo
NM_001407247mRNAREVIEWEDNo
Non-coding RNA Transcripts: NR_110451, NR_176318, NR_176319, NR_176320, NR_176321, NR_176322, NR_176323, NR_176324 CCDS IDs
CCDS ID
CCDS603
Exons for Canonical Transcript (ENST00000302118) Total exon count: 12
Exon IDStartEndStrand
ENSE000040212615503954855040044+
ENSE000012791675504384355044034+
ENSE000012791615504652355046646+
ENSE000040212685505227855052411+
ENSE000040212705505265055052791+
ENSE000040212695505599355056189+
ENSE000040212625505733155057514+
ENSE000040212665505803655058209+
ENSE000040212745505849955058647+
ENSE000040212735505948655059663+
ENSE000040212655506137555061556+
ENSE000040212645506336955064852+

Section 3: Protein Identifiers UniProt Accessions Total: 8 entries

UniProt IDStatusNotes
Q8NBP7Reviewed✓ Canonical (Swiss-Prot)
A0A669KAY4UnreviewedTrEMBL
A0A669KB81UnreviewedTrEMBL
A0A669KBG0UnreviewedTrEMBL
A0AA34QVH0UnreviewedTrEMBL
A0AAQ5BGU8UnreviewedTrEMBL
A0AAQ5BGX4UnreviewedTrEMBL
A0AAQ5BGZ8UnreviewedTrEMBL
Canonical Protein Properties (Q8NBP7):
PropertyValue
Length692 amino acids
Mass74,286 Da
Alternative NamesNeural apoptosis-regulated convertase 1, Proprotein convertase 9, Subtilisin/kexin-like protease PC9
RefSeq Protein Accessions (Human)
RefSeq IDStatusMANE Select
NP_777596REVIEWED✓ Yes (Canonical)
NP_001394169REVIEWEDNo
NP_001394170REVIEWEDNo
NP_001394171REVIEWEDNo
NP_001394172REVIEWEDNo
NP_001394173REVIEWEDNo
NP_001394174REVIEWEDNo
NP_001394175REVIEWEDNo
NP_001394176REVIEWEDNo
Protein Domains and Families Total: 10 InterPro entries
InterPro IDNameType
IPR000209Peptidase_S8/S53_domDomain
IPR010259S8pro/Inhibitor_I9Domain
IPR015500Peptidase_S8_subtilisin-relFamily
IPR034193PCSK9_ProteinaseK-likeDomain
IPR036852Peptidase_S8/S53_dom_sfHomologous superfamily
IPR037045S8pro/Inhibitor_I9_sfHomologous superfamily
IPR041051PCSK9_C3Domain
IPR041052PCSK9_C2Domain
IPR041254PCSK9_C1Domain
IPR050131Peptidase_S8_subtilisin-likeFamily

Section 4: Structure Identifiers Experimental Structures (PDB) Total PDB structure count: 62

PDB IDTitleMethodResolution (Å)
2P4ECrystal Structure of PCSK9X-RAY1.98
2PMWCrystal Structure of PCSK9X-RAY2.3
2QTWPCSK9 at 1.9Å ResolutionX-RAY1.9
2W2MWT PCSK9-ΔCTD bound to WT EGF-A of LDLRX-RAY2.4
2W2NWT PCSK9-ΔCTD bound to EGF-A H306Y mutantX-RAY2.3
2W2OPCSK9-ΔCTD D374Y mutant bound to WT EGF-AX-RAY2.62
2W2PPCSK9-ΔCTD D374A mutant bound to EGF-AX-RAY2.62
2W2QPCSK9-ΔCTD D374H mutant bound to EGF-AX-RAY2.33
2XTJPCSK9 complex with 1D05 FabX-RAY2.7
3BPSPCSK9:EGF-A complexX-RAY2.41
3GCWPCSK9:EGFA(H306Y)X-RAY2.7
3GCXPCSK9:EGFA (pH 7.4)X-RAY2.7
3H42PCSK9 complex with competitive antibody FabX-RAY2.3
3M0CPCSK9 complex with LDL receptorX-RAY7.01
3P5BLDLR/PCSK9 complexX-RAY3.3
3P5CLDLR/PCSK9 complexX-RAY4.2
3SQOPCSK9 J16 Fab complexX-RAY2.7
4K8RAnti-PCSK9 antibody (C-terminal)X-RAY3.22
4NE9PCSK9 with LDLR peptideX-RAY2.6
4NMXPCSK9 with inhibitory peptideX-RAY1.85
4OV6PCSK9 with AdnectinX-RAY2.69
6U26PCSK9 with compound 16X-RAY1.53
6XIBPCSK9 with cyclic peptide 30X-RAY1.55
6XICPCSK9 with cyclic peptide 40X-RAY1.38
6XIDPCSK9 with cyclic peptide 51X-RAY1.48
6XIEPCSK9 with cyclic peptide 77X-RAY1.43
6XIFPCSK9 with cyclic peptide 83X-RAY1.77
7ANQPCSK9 C-ter with VHH P1.40X-RAY2.2
7KEVPCSK9 with cyclic peptide LDLR disruptorX-RAY2.8
7S5HPCSK9 with cyclic peptide 35X-RAY1.27
8WFRPCSK9 (Biortus)X-RAY1.95
6OLZHuman ribosome nascent chain complex (PCSK9-RNC)Cryo-EM3.9
6OM0Human ribosome nascent chain complex (PCSK9-RNC)Cryo-EM3.1
6OM7Human ribosome nascent chain complex (PCSK9-RNC)Cryo-EM3.7
Structure Summary:
  • X-ray Diffraction: 59 structures
  • Cryo-EM: 3 structures
  • Resolution range: 1.27 - 7.01 Å Predicted Structures (AlphaFold)
AlphaFold IDpLDDT (Global)Sequence LengthFraction Very High pLDDT
Q8NBP785.0352080.67 (67%)

Section 5: Cross-Species Orthologs

SpeciesEnsembl Gene IDSymbolBiotype
Mouse (Mus musculus)ENSMUSG00000044254Pcsk9protein_coding
Rat (Rattus norvegicus)ENSRNOG00000006280Pcsk9protein_coding
Zebrafish (Danio rerio)ENSDARG00000074185pcsk9protein_coding
Fruit fly (Drosophila melanogaster)FBGN0004598Fur2protein_coding
Worm (C. elegans)WBGENE00002232kpc-1protein_coding
Yeast (S. cerevisiae)No ortholog--

Section 6: Clinical Variants & AI Predictions ClinVar Variant Statistics Total variants: 1,456

ClassificationCount
Pathogenic9
Likely Pathogenic4
Uncertain Significance (VUS)~100+
Likely Benign~200+
BenignSeveral
Conflicting ClassificationsSeveral
Pathogenic Variants (All 9)
ClinVar IDHGVS NotationTypeReview Status
2027927c.381T>G (p.Ser127Arg)SNVcriteria provided, single submitter
2874c.646T>C (p.Phe216Leu)SNVno assertion criteria provided
431555c.42_43insTG (p.Leu15fs)Insertioncriteria provided, single submitter
440706c.140C>G (p.Ser47Cys)SNVno assertion criteria provided
440712c.248A>C (p.Lys83Thr)SNVno assertion criteria provided
440715c.323T>C (p.Leu108Pro)SNVno assertion criteria provided
440721c.1402A>G (p.Thr468Ala)SNVno assertion criteria provided
440722c.1411G>T (p.Ala471Ser)SNVno assertion criteria provided
440725c.2005G>C (p.Glu669Gln)SNVno assertion criteria provided
Likely Pathogenic Variants (All 4)
ClinVar IDHGVS NotationType
1015123c.653G>C (p.Arg218Thr)SNV
1120257c.1906A>C (p.Ser636Arg)SNV
4277664c.399+1G>ASNV (splice)
438337c.1061A>T (p.Asn354Ile)SNV
SpliceAI Predictions Total predictions: 1,961 TOP 50 High-Scoring Splice-Altering Variants:
Variant IDEffectDelta Score
1:55040040:CCAAG:Cdonor_loss0.99
1:55040042:AAGGT:Adonor_loss0.99
1:55040044:GGTG:Gdonor_loss0.99
1:55040045:GT:Gdonor_loss0.99
1:55040013:G:GTdonor_gain0.98
1:55039982:G:GTdonor_gain0.95
1:55039985:G:GTdonor_gain0.91
1:55040141:G:GTdonor_gain0.89
1:55040045:G:GGdonor_gain0.87
1:55040199:C:Tdonor_gain0.86
1:55040731:G:Tdonor_gain0.86
1:55040035:C:Gdonor_gain0.83
1:55040014:A:Tdonor_gain0.82
1:55040221:T:TAdonor_gain0.79
1:55040222:A:AAdonor_gain0.79
1:55040478:G:GGdonor_gain0.76
1:55040885:G:GTdonor_gain0.75
1:55040048:C:Tdonor_gain0.74
1:55040477:A:AGdonor_gain0.72
1:55040839:C:Tdonor_gain0.72
1:55040885:G:Tdonor_gain0.72
1:55040131:T:Gdonor_gain0.70
1:55040009:C:Tdonor_gain0.67
1:55040043:AG:Adonor_gain0.63
1:55040044:GG:Gdonor_gain0.63
1:55039997:G:GTdonor_gain0.62
1:55040727:C:Tdonor_gain0.60
1:55040058:G:Tdonor_gain0.60
1:55039964:C:CGdonor_gain0.58
1:55040156:TCGCC:Tdonor_gain0.58
1:55040451:C:Tdonor_gain0.57
1:55040398:GCACA:Gdonor_loss0.51
AlphaMissense Predictions Total predictions: 4,470 TOP 50 Likely Pathogenic Missense Variants:
Variant IDProtein VariantScoreClassification
1:55046551:T:AI143N0.985likely_pathogenic
1:55046542:T:AV140D0.972likely_pathogenic
1:55044000:T:CF122S0.963likely_pathogenic
1:55043867:T:GY78D0.955likely_pathogenic
1:55043874:T:AV80E0.943likely_pathogenic
1:55043978:T:CF115L0.933likely_pathogenic
1:55044001:C:AF122L0.933likely_pathogenic
1:55046591:G:CW156C0.925likely_pathogenic
1:55043997:G:AG121D0.923likely_pathogenic
1:55046594:C:AN157K0.922likely_pathogenic
1:55043999:T:CF122L0.913likely_pathogenic
1:55046551:T:GI143S0.912likely_pathogenic
1:55044012:T:AM126K0.908likely_pathogenic
1:55046573:T:AF150L0.900likely_pathogenic
1:55046571:T:CF150L0.900likely_pathogenic
1:55044012:T:GM126R0.903likely_pathogenic
1:55046559:G:TD146Y0.898likely_pathogenic
1:55046524:C:AA134D0.892likely_pathogenic
1:55043979:T:CF115S0.889likely_pathogenic
1:55043867:T:AY78N0.887likely_pathogenic
1:55043979:T:GF115C0.882likely_pathogenic
1:55046555:G:CE144D0.880likely_pathogenic
1:55043996:G:CG121R0.877likely_pathogenic
1:55044006:T:AV124E0.877likely_pathogenic
1:55046560:A:CD146A0.870likely_pathogenic
1:55046549:T:AV149D0.867likely_pathogenic
1:55046560:A:GD146G0.866likely_pathogenic
1:55046562:T:CS147P0.856likely_pathogenic
1:55043928:T:CL98P0.848likely_pathogenic
1:55046589:T:AW156R0.846likely_pathogenic
1:55046561:C:AD146E0.844likely_pathogenic
1:55043939:G:CA102P0.843likely_pathogenic
1:55044000:T:GF122C0.831likely_pathogenic
1:55046554:A:GE144G0.823likely_pathogenic
1:55046560:A:TD146V0.818likely_pathogenic
1:55044003:T:CL123P0.812likely_pathogenic
1:55046558:G:CE145D0.812likely_pathogenic
1:55044013:G:AM126I0.810likely_pathogenic
1:55043851:G:CW72C0.808likely_pathogenic
1:55043849:T:AW72R0.799likely_pathogenic
1:55040027:T:CF64L0.793likely_pathogenic
1:55043940:C:AA102D0.780likely_pathogenic
1:55046541:G:TV140F0.778likely_pathogenic
1:55046557:A:TE145V0.773likely_pathogenic
1:55046542:T:GV140G0.769likely_pathogenic
1:55043867:T:CY78H0.762likely_pathogenic
1:55046550:A:TI143F0.763likely_pathogenic
1:55044012:T:CM126T0.752likely_pathogenic
1:55043868:A:CY78S0.740likely_pathogenic
1:55043978:T:GF115V0.726likely_pathogenic

Section 7: Biological Pathways & Gene Ontology Reactome Pathways Total pathway count: 4

Pathway IDPathway Name
R-HSA-8964038LDL clearance
R-HSA-8866427VLDLR internalisation and degradation
R-HSA-8957275Post-translational protein phosphorylation
R-HSA-381426Regulation of IGF transport and uptake by IGFBPs
Gene Ontology Annotations Total GO terms: 54 Biological Process (24 terms)
GO IDTerm Name
GO:0008203cholesterol metabolic process
GO:0042632cholesterol homeostasis
GO:0010989negative regulation of low-density lipoprotein particle clearance
GO:0032802low-density lipoprotein particle receptor catabolic process
GO:0032805positive regulation of LDLR catabolic process
GO:1905601negative regulation of receptor-mediated endocytosis involved in cholesterol transport
GO:0006641triglyceride metabolic process
GO:0006644phospholipid metabolic process
GO:0042157lipoprotein metabolic process
GO:0001822kidney development
GO:0001889liver development
GO:0001920negative regulation of receptor recycling
GO:0002091negative regulation of receptor internalization
GO:0002092positive regulation of receptor internalization
GO:0016540protein autoprocessing
GO:0006915apoptotic process
GO:0022008neurogenesis
GO:0030182neuron differentiation
GO:0043523regulation of neuron apoptotic process
GO:0043525positive regulation of neuron apoptotic process
GO:0007041lysosomal transport
GO:0009267cellular response to starvation
GO:0032869cellular response to insulin stimulus
GO:1903783negative regulation of sodium ion import across plasma membrane
Molecular Function (13 terms)
GO IDTerm Name
GO:0004175endopeptidase activity
GO:0004252serine-type endopeptidase activity
GO:0050750low-density lipoprotein particle receptor binding
GO:0030169low-density lipoprotein particle binding
GO:0034189very-low-density lipoprotein particle binding
GO:0070326very-low-density lipoprotein particle receptor binding
GO:0034185apolipoprotein binding
GO:0034190apolipoprotein receptor binding
GO:0003723RNA binding
GO:0019871sodium channel inhibitor activity
GO:0030547signaling receptor inhibitor activity
GO:0141110transporter inhibitor activity
Cellular Component (17 terms)
GO IDTerm Name
GO:0005576extracellular region
GO:0005615extracellular space
GO:0009986cell surface
GO:0005886plasma membrane
GO:0031232extrinsic component of external side of plasma membrane
GO:0005783endoplasmic reticulum
GO:0005788endoplasmic reticulum lumen
GO:0005794Golgi apparatus
GO:0030134COPII-coated ER to Golgi transport vesicle
GO:0005764lysosome
GO:0005765lysosomal membrane
GO:0036020endolysosome membrane
GO:0005769early endosome
GO:0005770late endosome
GO:0005737cytoplasm
GO:0048471perinuclear region of cytoplasm
GO:1990666PCSK9-LDLR complex
GO:1990667PCSK9-AnxA2 complex

Section 8: Protein Interactions & Molecular Networks STRING Protein-Protein Interactions Total interaction count: 2,840 TOP 50 Highest-Confidence Interactors:

UniProt IDGeneScoreDescription
Q8NBP7PCSK9986Self (homodimerization)
P04114APOB986Apolipoprotein B-100
P04035HMGCR900HMG-CoA reductase
Q92824PCSK5868Proprotein convertase subtilisin/kexin type 5
Q99523SORT1867Sortilin
P01133EGF827Epidermal growth factor
P08134RHOC823Rho-related GTP-binding protein RhoC
Q5SW96LDLRAD3808LDLR class A domain-containing 3
Q6PGN9SLC22A30804Solute carrier family 22 member 30
Q9HCU4CELSR2798Cadherin EGF LAG 7-pass G-type receptor 2
Q8WTV0SCARB1792Scavenger receptor class B member 1
Q12772SREBF2785Sterol regulatory element-binding protein 2
P11597CETP782Cholesteryl ester transfer protein
Q9Y5C1ANGPTL3771Angiopoietin-related protein 3
P02647APOA1764Apolipoprotein A-I
P98155VLDLR749VLDL receptor
P16671CD36745Platelet glycoprotein 4
Q14108SCARB2734Lysosome membrane protein 2
Q14703MBTPS1728Membrane-bound transcription factor site-1 protease
P02649APOE723Apolipoprotein E
Q9UHC9NPC1L1723NPC1-like intracellular cholesterol transporter 1
P00533EGFR720Epidermal growth factor receptor
P02768ALB702Serum albumin
P08519LPA697Apolipoprotein(a)
P02656APOC3693Apolipoprotein C-III
P09958FURIN686Furin
Q16549PCSK7681Proprotein convertase subtilisin/kexin type 7
Q9H222SUSD4677Sushi domain-containing protein 4
P55157MTTP670Microsomal triglyceride transfer protein
O60610DIAPH1668Protein diaphanous homolog 1
Q9H221SUSD3668Sushi domain-containing protein 3
O95477ABCA1664ATP-binding cassette sub-family A member 1
Q8WWL2PCSK6663Proprotein convertase subtilisin/kexin type 6
P12821ACE651Angiotensin-converting enzyme
O96001TBC1D8B650TBC1 domain family member 8B
Q8WY64SIAE648Sialate O-acetylesterase
P04626ERBB2647Receptor tyrosine-protein kinase erbB-2
P98194ATP2C1646Calcium-transporting ATPase type 2C member 1
Q6Q788APOOL636Apolipoprotein O-like
Q08AE8LDLRAD4626LDLR class A domain-containing protein 4
Q07869PPARA620Peroxisome proliferator-activated receptor alpha
P36956SREBF1619Sterol regulatory element-binding protein 1
P01308INS618Insulin
P02652APOA2614Apolipoprotein A-II
P02654APOC1609Apolipoprotein C-I
Q07954LRP1607LDL receptor-related protein 1
P29122PCSK2599Neuroendocrine convertase 2
P31749AKT1597RAC-alpha serine/threonine-protein kinase
P11150LIPC596Hepatic triacylglycerol lipase
P01130LDLR591Low-density lipoprotein receptor
P06307CCK581Cholecystokinin
IntAct Curated Interactions Total: 71 interactions Key Direct Interactors:
Gene AGene BInteraction TypeConfidence
PCSK9LDLRdirect interaction0.68
PCSK9ANXA2physical association0.61
PCSK9MMP2cleavage reaction0.62
FAM20CPCSK9phosphorylation reaction0.44
PCSK9SEC11Cphysical association0.40
Protein Similarity ESM2 Structural/Embedding Similarity Total similar proteins: 51 TOP 20 Similar Proteins:
UniProt IDTop SimilarityAvg Similarity
A8T6441.00000.9809
A8T6551.00000.9809
A8T6621.00000.9815
A8T6661.00000.9815
A8T6720.99990.9816
A8T6500.99990.9808
Q8NBP70.99990.9809
O147730.99990.9724
O751730.99990.9795
Q5IS740.99990.9726
Q5RFQ80.99990.9798
A8T6580.99970.9811
A8T6770.99960.9811
A8T6820.99970.9808
A8T6880.99970.9811
A8T6950.99960.9807
A8T6A10.99970.9809
A8T6A60.99970.9809
Q611390.99960.9770
Q628490.99960.9773
DIAMOND Sequence Homology Total homologous proteins: 18
UniProt IDTop Identity (%)Top Bitscore
A8T66299.701332
A8T66699.701332
A8T64499.301333
A8T65599.301335
A8T67299.301327
Q8NBP799.001327
A8T65098.101326
A8T68297.201297
A8T68897.201295
A8T65897.001310
A8T69596.101296
A8T6A195.201313
A8T6A695.201321
A8T67794.901267
Q80W6591.101263
P5999690.901259
O5394549.00361
Q8SS8633.90110

Section 9: Transcription Factor Regulatory Data Note: PCSK9 is NOT a transcription factor. This section covers TFs that regulate PCSK9 expression. Upstream Regulators (TFs that regulate PCSK9) Total: 10 known regulators

Transcription FactorRegulation TypeConfidence
SREBF1ActivationHigh
SREBF2ActivationHigh
HNF1AActivationHigh
HNF4AActivationMedium
NR1H4 (FXR)RepressionMedium
PPARARepressionMedium
PPARG-High
HINFP-High
KAT7-Low
TCF3-High
Key Regulatory Mechanisms:
  • SREBF1/SREBF2 (Sterol regulatory element-binding proteins) are major activators of PCSK9 transcription in response to low cholesterol
  • HNF1A/HNF4A (Hepatocyte nuclear factors) are liver-specific activators
  • PPARA and NR1H4 (FXR) repress PCSK9 expression

Section 10: Drug & Pharmacology Data FDA-Approved PCSK9-Targeting Drugs

DrugChEMBL IDTypePhaseTrade NameATC Code
EvolocumabCHEMBL2364655Antibody4 (Approved)RepathaC10AX13
AlirocumabCHEMBL2109540Antibody4 (Approved)PraluentC10AX14
InclisiranCHEMBL3990033siRNA (Oligonucleotide)3 (Phase 3+)LeqvioC10AX16
Drug Details Evolocumab (Repatha)
  • Mechanism: Monoclonal antibody that binds PCSK9, preventing LDLR degradation

  • Indications: Homozygous/heterozygous familial hypercholesterolemia, cardiovascular disease, hyperlipidemia, coronary artery disease, myocardial infarction, stroke

  • Clinical Trials: 113 trials (Phase 1-4) Alirocumab (Praluent)

  • Mechanism: Monoclonal antibody that binds PCSK9

  • Indications: Familial hypercholesterolemia, cardiovascular disease, hyperlipidemia, atherosclerosis

  • Clinical Trials: 84 trials (Phase 1-4) Inclisiran (Leqvio)

  • Mechanism: siRNA that silences PCSK9 mRNA expression in hepatocytes

  • Indications: Hypercholesterolemia, cardiovascular disease, atherosclerosis

  • Clinical Trials: 43 trials (Phase 1-3) Additional Small Molecule/Peptide Inhibitors in Development Total targeting molecules: 100+ (mostly preclinical) Clinical Trials Summary (Evolocumab) Total: 113+ trials

PhaseStatusCount
Phase 4Various30+
Phase 3Completed/Active40+
Phase 2Completed20+
Phase 1Completed5+
ObservationalVariousSeveral
Representative Phase 4 Completed Trials:
NCT IDTitleStatus
NCT02948777Effects on Postprandial Lipid Metabolism in Type 2 DiabetesCOMPLETED
NCT03096288Impact on Clopidogrel Effects with High Platelet ReactivityCOMPLETED
NCT03403374Safety in Indian Patients with HoFHCOMPLETED
NCT03829046Effects in Patients With Diabetes and Atherosclerotic DiseaseCOMPLETED
NCT03900026Effect on Saphenous Vein Graft Patency Post-CABGCOMPLETED
NCT03932721EXCEED-BHS3: Evolocumab + Empagliflozin in DiabetesCOMPLETED
NCT04710368Effect on Coronary Plaque CharacteristicsCOMPLETED
Pharmacogenomics (PharmGKB)
AttributeValue
PharmGKB IDPA38617
VIP GeneYes (Very Important Pharmacogene)
Has Variant AnnotationsYes
CPIC GuidelineNo

Section 11: Expression Profiles Bgee Expression Summary

AttributeValue
Expression BreadthUbiquitous
Total Present Calls147
Max Expression Score91.35
Tissue Expression (TOP 30 Tissues)
Tissue (UBERON)Expression Pattern
Liver (UBERON:0002107)Highest
Right lobe of liver (UBERON:0001114)High
Small intestine (UBERON:0002108)High
Duodenum (UBERON:0002114)High
Ileal mucosa (UBERON:0000331)High
Colon (UBERON:0001155)High
Transverse colon (UBERON:0001157)High
Colonic mucosa (UBERON:0000317)High
Kidney (UBERON:0002113)High
Kidney cortex (UBERON:0001225)High
Pancreas (UBERON:0001264)Moderate
Islet of Langerhans (UBERON:0000006)Moderate
Lung (UBERON:0002048)Moderate
Stomach (UBERON:0000945)Moderate
Esophagus (UBERON:0001043)Moderate
Esophagus mucosa (UBERON:0002469)Moderate
Adrenal gland (UBERON:0002369)Moderate
Adrenal cortex (UBERON:0001235)Moderate
Brain (UBERON:0000955)Low-Moderate
Cerebellum (UBERON:0002037)Moderate
Cerebellar cortex (UBERON:0002129)Moderate
Cerebral cortex (UBERON:0000956)Low
Frontal cortex (UBERON:0001870)Low
Hypothalamus (UBERON:0001898)Low
Spleen (UBERON:0002106)Low
Blood (UBERON:0000178)Low
Skin (UBERON:0000014)Low
Adipose tissue (UBERON:0001013)Low
Bone marrow (UBERON:0002371)Low
Uterus (UBERON:0000995)Low
Cell Type Expression
Cell Type (CL)Notes
HepatocytePrimary expression site
Secondary oocyte (CL:0000655)Detected
Oocyte (CL:0000023)Detected
Stromal cell of endometrium (CL:0002255)Detected
Expression Pattern Summary:
  • Highest expression: Liver (hepatocytes)
  • Moderate expression: Small intestine, kidney, pancreas
  • Lower expression: Brain, adrenal gland, other tissues
  • Primary secreted protein: Enters circulation from liver

Section 12: Disease Associations Mendelian/Monogenic Disease Links GenCC Curated Associations Total: 4 disease-gene validity classifications

DiseaseMONDO/OMIMClassificationInheritanceSubmitter
Hypercholesterolemia, autosomal dominant, 3MONDO:0011369DefinitiveAutosomal dominantAmbry Genetics
Hypercholesterolemia, autosomal dominant, 3OMIM:603776StrongAutosomal dominantGenomics England PanelApp
Hypercholesterolemia, autosomal dominant, 3OMIM:603776StrongAutosomal dominantLabcorp Genetics
Homozygous familial hypercholesterolemiaORPHANET:391665SupportiveAutosomal recessiveOrphanet
Orphanet Disease Association
Orphanet IDDisease NameTypeGene CountPhenotype Count
391665Homozygous familial hypercholesterolemiaDisease633
Phenotype Associations (HPO) Total: 37 phenotypes
HPO IDPhenotype
HP:0003124Hypercholesterolemia
HP:0003141Increased LDL cholesterol concentration
HP:0003077Hyperlipidemia
HP:0031886Abnormal LDL cholesterol concentration
HP:0001677Coronary artery atherosclerosis
HP:0005181Premature coronary artery atherosclerosis
HP:0004416Precocious atherosclerosis
HP:0005177Premature arteriosclerosis
HP:0001658Myocardial infarction
HP:0001645Sudden cardiac death
HP:0001681Angina pectoris
HP:0030882Coronary artery aneurysm
HP:0000991Xanthomatosis
HP:0010874Tendon xanthomatosis
HP:0001114Xanthelasma
HP:0001084Corneal arcus
HP:0000822Hypertension
HP:0001920Renal artery stenosis
HP:0004950Peripheral arterial stenosis
HP:0007201Cerebral artery atherosclerosis
HP:0012397Aortic atherosclerotic lesion
HP:0004963Calcification of the aorta
HP:0004381Supravalvular aortic stenosis
HP:0001397Hepatic steatosis
HP:0000799Renal steatosis
HP:0006693Myocardial steatosis
HP:0001653Mitral regurgitation
HP:0005162Abnormal left ventricular function
HP:0030148Heart murmur
HP:0002094Dyspnea
HP:0002829Arthralgia
HP:0100261Abnormal tendon morphology
HP:0001138Optic neuropathy
HP:0012373Abnormal eye physiology
HP:0012638Abnormal nervous system physiology
HP:0003000062Abnormal internal carotid artery morphology
HP:0000006Autosomal dominant inheritance
GWAS Associations Total: 179+ associations TOP 30 GWAS Associations:
Study IDTraitP-value
GCST006612_63LDL cholesterol3×10⁻²⁵⁷
GCST006614_64Total cholesterol levels8×10⁻¹⁷⁵
GCST008078_14LDL cholesterol × alcohol interaction3×10⁻¹⁷⁶
GCST008079_128LDL cholesterol × alcohol interaction2×10⁻¹⁷⁵
GCST008086_3LDL cholesterol in current drinkers1×10⁻¹⁰¹
GCST002898_8LDL cholesterol2×10⁻⁹²
GCST002896_38Cholesterol, total6×10⁻⁷³
GCST007931_34HMG-CoA reductase inhibitor use9×10⁻⁶⁴
GCST007848_1LDL cholesterol3×10⁻⁵⁹
GCST008077_42LDL cholesterol levels7×10⁻⁵²
GCST002222_40LDL cholesterol3×10⁻⁵⁰
GCST000134_5LDL cholesterol2×10⁻⁴⁴
GCST004233_11LDL cholesterol levels3×10⁻⁴²
GCST002221_2Cholesterol, total2×10⁻³⁹
GCST006612_17LDL cholesterol5×10⁻³⁶
GCST004235_25Total cholesterol levels1×10⁻³²
GCST006614_75Total cholesterol levels7×10⁻²⁹
GCST000759_30LDL cholesterol2×10⁻²⁸
GCST009240_283Serum metabolite levels7×10⁻²⁶
GCST005194_104Coronary artery disease2×10⁻²⁵
GCST009240_321Serum metabolite levels1×10⁻²⁴
GCST006034_32Total cholesterol levels1×10⁻²³
GCST009240_28Serum metabolite levels3×10⁻²³
GCST005195_45Coronary artery disease2×10⁻²²
GCST009240_268Serum metabolite levels4×10⁻²²
GCST009240_502Serum metabolite levels2×10⁻²¹
GCST009240_125Serum metabolite levels5×10⁻²⁰
GCST009240_161Serum metabolite levels7×10⁻²⁰
GCST009240_230Serum metabolite levels4×10⁻²⁰
GCST009240_123Serum metabolite levels1×10⁻¹⁸
Key GWAS Trait Categories:
  • LDL Cholesterol: Strongest associations (p < 10⁻²⁵⁷)
  • Total Cholesterol: Multiple strong associations
  • Coronary Artery Disease: Significant associations
  • Myocardial Infarction: Associated
  • Statin Response: Pharmacogenomic associations
  • Serum Metabolites: Multiple lipoprotein-related metabolites

QUICK REFERENCE SUMMARY Key Identifiers at a Glance

CategoryPrimary Identifier
Gene (HGNC)HGNC:20001
Gene (Ensembl)ENSG00000169174
Gene (NCBI)255738
Gene (OMIM)607786
Protein (UniProt)Q8NBP7
Protein (RefSeq)NP_777596
Transcript (MANE Select)NM_174936 / ENST00000302118
CCDSCCDS603
AlphaFoldAF-Q8NBP7
PharmGKBPA38617 (VIP Gene)
Clinical Significance
  • Primary Disease: Familial Hypercholesterolemia (Autosomal Dominant, Type 3)
  • Therapeutic Target: FDA-approved drugs (Evolocumab, Alirocumab, Inclisiran)
  • Biological Function: Degrades LDLR → Increases LDL-cholesterol
  • Loss-of-Function Effect: Protective against cardiovascular disease

Reference compiled from BioBTree integrated biological databases, April 2026 I’ve compiled a comprehensive cross-database identifier and functional mapping reference for human PCSK9 covering all 12 requested sections: Summary of Data Coverage:

SectionKey Findings
Gene IDsHGNC:20001, ENSG00000169174, Entrez 255738, OMIM 607786
Transcripts12 Ensembl transcripts, NM_174936 (MANE Select), 12 exons
ProteinsQ8NBP7 (canonical), 692 aa, 74 kDa, 10 InterPro domains
Structures62 PDB structures (mostly X-ray, 1.27-7.01 Å resolution)
OrthologsMouse, rat, zebrafish, fly, worm (no yeast ortholog)
Clinical Variants1,456 ClinVar variants (9 pathogenic, 4 likely pathogenic), 1,961 SpliceAI predictions, 4,470 AlphaMissense predictions
Pathways/GO4 Reactome pathways, 54 GO terms (cholesterol metabolism central)
Interactions2,840 STRING interactions, 71 IntAct interactions (LDLR key partner)
Regulation10 upstream TFs (SREBF1/2, HNF1A main activators)
Drugs3 approved/advanced drugs (Evolocumab, Alirocumab, Inclisiran), 113+ clinical trials
ExpressionLiver-predominant, ubiquitous low expression elsewhere
DiseaseFamilial hypercholesterolemia (definitive), 37 HPO phenotypes, 179+ GWAS associations