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BPIFC

gene
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Also known as dJ149A16.7

Summary

BPIFC (BPI fold containing family C, HGNC:16503) is a protein-coding gene on chromosome 22q12.3, encoding BPI fold-containing family C protein (Q8NFQ6).

Predicted to enable lipopolysaccharide binding activity and phospholipid binding activity. Predicted to be involved in defense response to Gram-negative bacterium and innate immune response. Predicted to be located in extracellular region. Predicted to be active in obsolete extracellular space.

Source: NCBI Gene 254240 — automated summary from GO annotations (Alliance of Genome Resources).

At a glance

  • Gene–disease (curated): trichilemmal cyst (Limited, GenCC)
  • GWAS associations: 1
  • Clinical variants (ClinVar): 76 total
  • GTEx eGene: eQTL in 5 tissues, sQTL in 3 (q < 0.05)
  • Constraint (gnomAD): pLI 0.00 (LoF-tolerant), LOEUF 1.25 (unconstrained)
  • MANE Select transcript: NM_174932
  • Notable: 76 clinical variants but no curated precision-oncology (CIViC) evidence yet

Identifiers

Gene identifiers

FieldValue
HGNC IDHGNC:16503
Approved symbolBPIFC
NameBPI fold containing family C
Location22q12.3
Locus typegene with protein product
StatusApproved
AliasesdJ149A16.7
Ensembl geneENSG00000184459
Ensembl biotypeprotein_coding
OMIM614109
Entrez254240

Gene structure

Transcript identifiers

Ensembl transcripts: 5 — 4 protein_coding, 1 nonsense_mediated_decay

MANE Select: ENST00000300399

Transcript support level (Ensembl TSL; 1 = fully mRNA-supported): TSL 1: 2, TSL 5: 2

ENST00000300399, ENST00000397450, ENST00000397452, ENST00000534972, ENST00001134029

RefSeq mRNA: 1 — MANE Select: NM_174932 NM_174932

CCDS: CCDS13906

Canonical transcript exons

ENST00000300399 — 17 exons

ExonStartEnd
ENSE000011094303243237332432543
ENSE000011094323241936232419404
ENSE000011094333243134732431414
ENSE000013085903241708532417148
ENSE000013159503241591532415991
ENSE000013242453243371932433772
ENSE000015287183246157432461661
ENSE000034971263244584132445996
ENSE000036061923245338332453503
ENSE000036881123244563532445698
ENSE000036913643244721232447340
ENSE000037160643244267132442731
ENSE000037191593243776032437851
ENSE000037213703243570432435880
ENSE000037579553245726332457386
ENSE000039384213246437432464446
ENSE000047838743241384532414425

Expression profiles

Bgee: expression breadth broad, 79 present calls, max score 95.14.

FANTOM5 (CAGE): breadth tissue_specific, TPM avg 0.0668 / max 18.3021, expressed in 21 samples.

Highest expression (Bgee): upper leg skin, skin of abdomen, zone of skin, skin of leg, mammalian vulva.

Genetic regulation across tissues (GTEx eQTL / sQTL)

BPIFC is an eGene in GTEx v10 — its expression is genetically regulated (eQTL) in 5 tissues and its splicing (sQTL) in 3 (q < 0.05). Strongest associations first; slope = normalized effect of the lead variant’s alternative allele.

8 significant tissue × QTL associations:

TissueQTLq-valueSlopeLead variant
Skin Sun Exposed Lower legsqtl4.3e-97+1.1222:32413011:C:T
Skin Not Sun Exposed Suprapubicsqtl6.4e-80+1.4422:32413011:C:T
Nerve Tibialeqtl1.1e-58+0.9222:32508663:G:A
Skin Sun Exposed Lower legeqtl3.9e-05+0.0922:32442507:A:C
Skin Not Sun Exposed Suprapubiceqtl9.1e-05-0.1222:32442268:A:G
Esophagus Mucosaeqtl7.1e-04-0.2122:32462694:A:G
Testiseqtl1.8e-03-0.2522:32471347:A:AATCTTCT
Testissqtl4.9e-02+1.3222:33203563:C:T

FANTOM5 promoters

1 alternative TSS:

Promoter IDTPM avgSamples expressed
1937480.066821

Top tissues by expression

showing 100 of 213 tissues by Bgee expression score (0-100, higher = more expressed):

TissueAnatomy IDExpression scoreQuality
upper leg skinUBERON:000426295.14gold quality
skin of abdomenUBERON:000141691.32gold quality
zone of skinUBERON:000001490.86gold quality
skin of legUBERON:000151190.32gold quality
mammalian vulvaUBERON:000099788.78gold quality
skin of hipUBERON:000155488.29gold quality
gingival epitheliumUBERON:000194986.51gold quality
gingivaUBERON:000182886.42gold quality
penisUBERON:000098984.89gold quality
spermCL:000001984.00silver quality
male germ line stem cell (sensu Vertebrata) in testisCL:0000089 ∩ UBERON:000047381.48gold quality
nippleUBERON:000203079.19gold quality
islet of LangerhansUBERON:000000678.77gold quality
primordial germ cell in gonadCL:0000670 ∩ UBERON:000099166.91gold quality
body of tongueUBERON:001187663.77silver quality
tongueUBERON:000172359.16silver quality
skeletal muscle tissue of biceps brachiiUBERON:000450258.88gold quality
lateral globus pallidusUBERON:000247657.46gold quality
left testisUBERON:000453355.94gold quality
right testisUBERON:000453455.84gold quality
lateral nuclear group of thalamusUBERON:000273655.42gold quality
testisUBERON:000047355.30gold quality
substantia nigra pars reticulataUBERON:000196654.89gold quality
pharyngeal mucosaUBERON:000035553.68gold quality
superior surface of tongueUBERON:000737153.63gold quality
buccal mucosa cellCL:000233653.51gold quality
dorsal plus ventral thalamusUBERON:000189753.04gold quality
ventral tegmental areaUBERON:000269152.86gold quality
subthalamic nucleusUBERON:000190652.82gold quality
layer of synovial tissueUBERON:000761652.02gold quality
saphenous veinUBERON:000731851.97gold quality
pericardiumUBERON:000240751.91gold quality
inferior vagus X ganglionUBERON:000536351.78gold quality
dorsal root ganglionUBERON:000004451.69gold quality
synovial jointUBERON:000221751.69gold quality
trigeminal ganglionUBERON:000167551.64gold quality
thymusUBERON:000237051.62gold quality
pylorusUBERON:000116651.47gold quality
renal medullaUBERON:000036251.46gold quality
medulla oblongataUBERON:000189651.29gold quality
ponsUBERON:000098851.22gold quality
superior vestibular nucleusUBERON:000722751.21gold quality
cardia of stomachUBERON:000116251.18gold quality
tracheaUBERON:000312651.01gold quality
cerebellar vermisUBERON:000472050.97gold quality
vena cavaUBERON:000408750.82gold quality
substantia nigra pars compactaUBERON:000196550.78gold quality
amniotic fluidUBERON:000017349.64gold quality
pancreasUBERON:000126448.07gold quality
biceps brachiiUBERON:000150747.48gold quality
urethraUBERON:000005747.27gold quality
tonsilUBERON:000237246.83gold quality
deltoidUBERON:000147646.69gold quality
quadriceps femorisUBERON:000137745.99gold quality
vastus lateralisUBERON:000137945.88gold quality
globus pallidusUBERON:000187545.85gold quality
jejunumUBERON:000211545.61gold quality
bone marrowUBERON:000237145.51gold quality
skeletal muscle tissueUBERON:000113443.77gold quality
medial globus pallidusUBERON:000247743.42gold quality
skeletal muscle tissue of rectus abdominisUBERON:000451143.37gold quality
esophagus squamous epitheliumUBERON:000692042.94gold quality
secondary oocyteCL:000065542.57gold quality
epithelium of nasopharynxUBERON:000195142.30gold quality
muscle tissueUBERON:000238541.99gold quality
cortical plateUBERON:000534341.86gold quality
superficial temporal arteryUBERON:000161441.33gold quality
parietal lobeUBERON:000187241.12gold quality
palpebral conjunctivaUBERON:000181241.10gold quality
mucosa of paranasal sinusUBERON:000503040.98gold quality
jejunal mucosaUBERON:000039940.59gold quality
myocardiumUBERON:000234940.45gold quality
mammary ductUBERON:000176540.44gold quality
placentaUBERON:000198740.41gold quality
germinal epithelium of ovaryUBERON:000130440.33gold quality
bronchusUBERON:000218540.15gold quality
cartilage tissueUBERON:000241840.06gold quality
colonic mucosaUBERON:000031740.03gold quality
oviduct epitheliumUBERON:000480440.03gold quality
vaginaUBERON:000099639.99gold quality
mucosa of sigmoid colonUBERON:000499339.95gold quality
parotid glandUBERON:000183139.81gold quality
entorhinal cortexUBERON:000272839.81gold quality
oocyteCL:000002339.80gold quality
heart right ventricleUBERON:000208039.79gold quality
trabecular bone tissueUBERON:000248339.78gold quality
endothelial cellCL:000011539.75gold quality
bronchial epithelial cellCL:000232839.65gold quality
deciduaUBERON:000245039.65gold quality
tendon of biceps brachiiUBERON:000818839.60gold quality
parietal pleuraUBERON:000240039.45gold quality
Brodmann (1909) area 23UBERON:001355439.40gold quality
visceral pleuraUBERON:000240139.23gold quality
postcentral gyrusUBERON:000258139.23gold quality
nasal cavity epitheliumUBERON:000538439.04gold quality
corpus epididymisUBERON:000435938.98gold quality
tibiaUBERON:000097938.93gold quality
bone marrow cellCL:000209238.81gold quality
seminal vesicleUBERON:000099838.75gold quality
caput epididymisUBERON:000435838.75gold quality

Single-cell (SCXA)

Detected in 1 experiment(s), a significant marker in 1.

ExperimentMarker?Max mean expression
E-ANND-3yes4.41

HPA expression

RNA tissue specificity: Tissue enriched

39 HPA tissues / cells by nTPM:

Tissue / cellAxisnTPM
Skin 1tissue42.9
Breasttissue2.2
Hippocampal formationtissue1.3
Testistissue1.1
Cerebral cortextissue1.1
Occipital cortextissue1.1
Cerebellumtissue1.0
Prefrontal cortextissue0.9
Ponstissue0.8
Motor cortextissue0.8
Basal gangliatissue0.8
Hypothalamustissue0.8
Substantia nigratissue0.8
Ventral forebraintissue0.8
Septumtissue0.8
Somatosensory cortextissue0.8
Retrosplenial cortextissue0.8
Insular cortextissue0.8
Amygdalatissue0.7
Thalamustissue0.7
Spinal cordtissue0.7
Entorhinal cortextissue0.7
Retrosplenial and cingulate cortextissue0.7
Periaqueductal graytissue0.7
Temporal cortextissue0.7
Putamentissue0.6
Midbraintissue0.6
Medulla oblongatatissue0.6
Superior colliculitissue0.6
Corpus callosumtissue0.6
Tonsiltissue0.6
Olfactory bulbtissue0.6
Vaginatissue0.4
Skeletal muscletissue0.2
Thymustissue0.2
Frontal cortextissue0.1
Placentatissue0.1
Locus coeruleustissue0.1
Caudate putamentissue0.1

Brain sub-regions (HPA Brain Atlas): detected in 50; highest nTPM — Subiculum (1.3), Dorsal hippocampus (0.8), Ventral hippocampus (0.8), Dorsal spinal cord (0.7), Ventral spinal cord (0.7).

Regulation

Is transcription factor: no

miRNA regulators (miRDB)

Targeting BPIFC by miRDB confidence (max_score; target_count = how many genes the miRNA targets in total — lower means more specific).

showing 30 of 41 miRNAs:

miRNAMax scoreAvg scoremiRNA target_count
HSA-MIR-3163100.0077.238605
HSA-MIR-513B-5P99.9969.962150
HSA-MIR-480399.9871.993117
HSA-MIR-23B-5P99.9866.07587
HSA-MIR-570-3P99.9672.414910
HSA-MIR-495-3P99.9672.814197
HSA-MIR-568899.9673.234504
HSA-MIR-548AA99.9670.643753
HSA-MIR-548AP-3P99.9670.643753
HSA-MIR-548T-3P99.9670.643753
HSA-MIR-6783-3P99.8967.922059
HSA-MIR-1343-3P99.8966.781815
HSA-MIR-204-5P99.7971.622439
HSA-MIR-211-5P99.7971.652440
HSA-MIR-10393-3P99.7266.56961
HSA-MIR-6801-5P99.7266.50981
HSA-MIR-4755-5P99.7170.342716
HSA-MIR-5006-3P99.7170.262728
HSA-MIR-80299.6167.701254
HSA-MIR-199A-5P99.5169.711107
HSA-MIR-199B-5P99.5169.741098
HSA-MIR-6852-5P99.1766.692073
HSA-MIR-323B-3P99.1468.89725
HSA-MIR-6738-3P99.0367.141326
HSA-MIR-5001-3P98.9167.281394
HSA-MIR-181A-2-3P98.9167.601168
HSA-MIR-629-5P98.7868.721032
HSA-MIR-6776-5P98.5467.431304
HSA-MIR-4720-3P98.5068.88988
HSA-MIR-499B-5P98.3568.39988

Functional genomics

gnomAD constraint: pLI 5.35e-17, LOEUF 1.25, missense Z 0.653 — population loss-of-function intolerance (pLI ≥ 0.9 = LoF-intolerant; lower LOEUF = more constrained). gnomAD

Regional missense constraint (gnomAD RMC): no regional variation along ENST00000300399 — one region, missense o/e 0.97.

Literature-anchored findings (GeneRIF, showing 3)

  • BPIL2maps to Chr 22q13. AA sequence is reported. (PMID:12185532)
  • BPIFC c.3G>C mutation segregates with hereditary trichilemmal cysts in a large Chinese family. (PMID:31033252)
  • Transcriptomic Analyses and Experimental Validation Identified Immune-Related lncRNA-mRNA Pair MIR210HG-BPIFC Regulating the Progression of Hypertrophic Cardiomyopathy. (PMID:38474063)

Cross-species orthologs

3 orthologs

OrganismSymbolGene ID
danio_reriocetpENSDARG00000030872
mus_musculusBpifcENSMUSG00000050108
rattus_norvegicusBpifcENSRNOG00000022937

Paralogs (12): BPIFB2 (ENSG00000078898), CETP (ENSG00000087237), PLTP (ENSG00000100979), BPI (ENSG00000101425), BPIFB1 (ENSG00000125999), LBP (ENSG00000129988), BPIFA2 (ENSG00000131050), BPIFA3 (ENSG00000131059), BPIFB6 (ENSG00000167104), BPIFB3 (ENSG00000186190), BPIFB4 (ENSG00000186191), BPIFA1 (ENSG00000198183)

Mouse-model phenotypes

Observed phenotypes of the mouse ortholog (MGI:3026884) from MGI (Alliance of Genome Resources) — knockout/mutant phenotypes, ranked by annotation count. 3 distinct phenotype terms.

Mouse phenotype (MP)Records
abnormal locomotor behavior1
impaired glucose tolerance1
increased aggression1

Additional cross-species homologs

Sequence homologs in species beyond Ensembl Compara’s model organisms, by Diamond local protein alignment (% sequence identity; best hit per species). Lower-identity rows are more distant homologs. The matched accessions’ gene symbols aren’t in biobtree yet, so each row shows the UniProt accession.

OrganismUniProtIdentityMethod
Sebastes schlegeliiA0A481NSZ435.7%Diamond

Genomic neighbors (locus context)

Genes flanking this one on the chromosome (NCBI/Entrez gene neighborhood). Positional context only — some neighbors share regulatory elements (bidirectional promoters, antisense/overlapping transcripts), but chromosomal adjacency is not itself a functional relationship (see Interactions for that).

SymbolTypeEntrez
RFPL3SncRNA10737
RFPL3protein-coding10738
RTCBprotein-coding51493
SYN3-AS1ncRNA105373004
FBXO7protein-coding25793
SYN3protein-coding8224
LINC01640ncRNA105373006
TIMP3protein-coding7078
LARGE1protein-coding9215

Protein

Protein identifiers

BPI fold-containing family C protein — Q8NFQ6 (reviewed: Q8NFQ6)

Alternative names: Bactericidal/permeability-increasing protein-like 2

All UniProt accessions (3): A0A8C8NLL8, Q8NFQ6, Q5TI88

UniProt curated annotations — full annotation on UniProt →

Subcellular location. Secreted.

Tissue specificity. Detected in the basal layer of the epidermis from inflammatory skin from psoriasis patients, but not in normal skin.

Similarity. Belongs to the BPI/LBP/Plunc superfamily. BPI/LBP family.

Isoforms (2)

UniProt IDNamesCanonical?
Q8NFQ6-11yes
Q8NFQ6-22

RefSeq proteins (1): NP_777592* (*=MANE)

Domains & families (InterPro)

IDNameType
IPR001124Lipid-bd_serum_glycop_CDomain
IPR017942Lipid-bd_serum_glycop_NDomain
IPR017943Bactericidal_perm-incr_a/b_domHomologous_superfamily
IPR017954Lipid-bd_serum_glycop_CSConserved_site
IPR030675BPI/LBPFamily
IPR032942BPI/LBP/PluncFamily

Pfam: PF01273, PF02886

UniProt features (19 total): glycosylation site 10, sequence variant 4, splice variant 2, signal peptide 1, chain 1, disulfide bond 1

Structure

Predicted structure (AlphaFold)

ModelpLDDTFraction very-high
AF-Q8NFQ6-F182.600.51

Human Protein Atlas

Protein class: Predicted secreted proteins, UniProt - Evidence at transcript level

Protein evidence: Evidence at protein level

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 (1)

TypePositions
Disulfide bond161–200

Glycosylation sites (10)

TypePositions
N-linked (glcnac…) asparagine372, 415, 79, 92, 113, 213, 225, 257, 301, 355

Function

Pathways and Gene Ontology

Reactome pathways

0 curated (TAS) of 0; 0 disease pathways. Curated-first; evidence = TAS (manually curated) vs IEA (electronic inference).

MSigDB gene sets: 37 (showing top): GOBP_DEFENSE_RESPONSE_TO_OTHER_ORGANISM, ACEVEDO_METHYLATED_IN_LIVER_CANCER_DN, GOMF_LIPOPOLYSACCHARIDE_BINDING, GOMF_LIPID_BINDING, GOMF_PHOSPHOLIPID_BINDING, MIKKELSEN_MCV6_LCP_WITH_H3K27ME3, CHYLA_CBFA2T3_TARGETS_UP, LHX9_TARGET_GENES, MIR570_3P, MIR5688, MIR495_3P, MIR4755_5P, MIR5006_3P, MIR513B_5P, MIR6783_3P

GO Biological Process (4): innate immune response (GO:0045087), immune system process (GO:0002376), defense response to bacterium (GO:0042742), defense response to Gram-negative bacterium (GO:0050829)

GO Molecular Function (3): lipopolysaccharide binding (GO:0001530), phospholipid binding (GO:0005543), lipid binding (GO:0008289)

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

GO top-level categories

10 GO namespaces:

CategoryTerms
lipid binding2
immune response1
defense response to symbiont1
biological_process1
defense response1
response to bacterium1
defense response to bacterium1
carbohydrate derivative binding1
binding1
cellular anatomical structure1

Protein interactions and networks

STRING

showing 15 of 242 interactions by confidence (×1000):

Protein AProtein BPartner UniProtScore
BPIFCDEFB115Q30KQ5565
BPIFCWFDC12Q8WWY7525
BPIFCDEFB128Q7Z7B8514
BPIFCPGLYRP3Q96LB9486
BPIFCTMEM239Q8WW34468
BPIFCDRC10Q96DY2455
BPIFCCST5P28325412
BPIFCPLEKHA4Q9H4M7372
BPIFCBPIFA1Q9NP55365
BPIFCTHEM5Q8N1Q8355
BPIFCFLG2Q5D862352
BPIFCBPIFA3Q9BQP9328
BPIFCFHIP2BQ86V87327
BPIFCHRNRQ86YZ3324
BPIFCCALHM4Q5JW98323

IntAct

Human interaction partners of BPIFC in IntAct, one row per partner (best MIscore; records = supporting IntAct interaction records).

2 partners by confidence:

PartnerInteraction typeMIscoreRecords
HSPA2physical association0.4001
METTL21Cphysical association0.4001

BioGRID (3 interactions; top human partners by supporting records): HSPA2 (Affinity Capture-MS), METTL21C (Affinity Capture-MS), PARP6 (Proximity Label-MS)

Disease & clinical

Genetic variants

Variant evidence for BPIFC: 76 ClinVar records (0 pathogenic / likely pathogenic); 1 GWAS association.

ClinVar

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

ClassificationCount (floor)
Pathogenic0
Likely pathogenic0
Uncertain significance65
Likely benign3
Benign3

SpliceAI

Top 10 splice-impact sites by Δscore (adjacent positions with the same effect merged into one range; 34 predictions of 1,114):

Position(s)EffectΔscoreSites
22:32417149–32417150acceptor_loss1.00005
22:32432549acceptor_gain1.0000
22:32432552acceptor_gain1.0000
22:32432556–32432557acceptor_gain1.00002
22:32437862acceptor_gain1.0000
22:32453504–32453505acceptor_loss1.00006
22:32417149acceptor_loss0.9900
22:32419360–32419361donor_loss0.99005
22:32419405–32419406acceptor_loss0.99006
22:32431415–32431416acceptor_loss0.99006

AlphaMissense

397 missense substitutions predicted likely pathogenic (of 3,333 scored), across 166 residues. Top 20 hotspot residues, ranked by the number of likely-pathogenic substitutions (of those reachable by a single-nucleotide change), then by mean score:

ResidueLikely-pathogenic substitutionsMean am_pathogenicityMax am_pathogenicity
C20070.8210.914
C16170.8110.891
N44170.6970.856
F40760.8530.927
W11860.8290.919
F38360.7700.862
D23060.6030.668
F17250.8530.886
F18350.8120.863
F8050.7510.863
F42450.7500.814
F7050.7490.833
F9750.7000.752
P43850.6100.629
F29540.8620.922
F43440.8200.890
F35640.8020.821
F25240.7930.833
P34740.7920.895
E42540.7870.862

HPA cancer prognostics

RNA cancer specificity: Group enriched (Head and Neck Squamous Cell Carcinoma, Skin Cutaneous Melanoma)

Disease associations

OMIM: gene MIM:614109 | disease phenotypes:

GenCC curated gene-disease

1 curated gene-disease records:

DiseaseClassificationInheritanceRecords
trichilemmal cystLimitedAutosomal dominant

Mondo (1): trichilemmal cyst (MONDO:0012328)

GWAS associations

1 associations:

StudyTraitp-value
GCST010002_381Refractive error6e-13

Drugs & pharmacology

Drug and pharmacology data

Is drug target: no

PharmGKB: 1 entry (CPIC guideline: no)

CTD chemical–gene interactions

8 total (human), top 8 by PubMed support.

ChemicalActions (top 5)PubMed papers
sodium arsenatedecreases expression, increases abundance1
hydroquinoneincreases expression1
abrineincreases expression1
Arsenicdecreases expression, increases abundance1
Benzo(a)pyreneaffects methylation1
Tetrachlorodibenzodioxinincreases expression1
Lactic Aciddecreases expression1
Particulate Matterincreases expression1

Clinical trials (associated diseases)

Via MONDO — disease-level, not drug-specific.

  • Associated diseases: trichilemmal cyst
  • Disease cohort memberships (association, not causation — diseases whose associated-gene cohort lists this gene; a subset are also under Associated diseases): trichilemmal cyst