IVL

gene
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Summary

IVL (involucrin, HGNC:6187) is a protein-coding gene on chromosome 1q21.3, encoding Involucrin (P07476). Part of the insoluble cornified cell envelope (CE) of stratified squamous epithelia.

Involucrin, a component of the keratinocyte crosslinked envelope, is found in the cytoplasm and crosslinked to membrane proteins by transglutaminase. This gene is mapped to 1q21, among calpactin I light chain, trichohyalin, profillaggrin, loricrin, and calcyclin.

Source: NCBI Gene 3713 — RefSeq curated summary.

At a glance

  • GWAS associations: 2
  • Clinical variants (ClinVar): 150 total
  • MANE Select transcript: NM_005547

Identifiers

Gene identifiers

FieldValue
HGNC IDHGNC:6187
Approved symbolIVL
Nameinvolucrin
Location1q21.3
Locus typegene with protein product
StatusApproved
Ensembl geneENSG00000163207
Ensembl biotypeprotein_coding
OMIM147360
Entrez3713

Gene structure

Transcript identifiers

Ensembl transcripts: 1 — 1 protein_coding

ENST00000368764

RefSeq mRNA: 1 — MANE Select: NM_005547 NM_005547

CCDS: CCDS1030

Canonical transcript exons

ENST00000368764 — 2 exons

ExonStartEnd
ENSE00001447919152908546152908589
ENSE00001793574152909779152911886

Expression profiles

Bgee: expression breadth ubiquitous, 147 present calls, max score 99.45.

FANTOM5 (CAGE): breadth broad, TPM avg 6.0813 / max 2232.8615, expressed in 231 samples.

FANTOM5 promoters (3 alternative TSS)

Promoter IDTPM avgSamples expressed
53296.0507228
53280.02687
53270.00382

Top tissues by expression

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

TissueAnatomy IDExpression scoreQuality
cervix squamous epitheliumUBERON:000692299.45gold quality
gingival epitheliumUBERON:000194999.43gold quality
gingivaUBERON:000182899.34gold quality
lower esophagus mucosaUBERON:003583499.24gold quality
tongue squamous epitheliumUBERON:000691998.69gold quality
squamous epitheliumUBERON:000691498.34gold quality
esophagus mucosaUBERON:000246997.84gold quality
cervix epitheliumUBERON:000480197.74gold quality
esophagus squamous epitheliumUBERON:000692097.50gold quality
oral cavityUBERON:000016797.29gold quality
skin of abdomenUBERON:000141697.22gold quality
epithelium of esophagusUBERON:000197697.06gold quality
mammalian vulvaUBERON:000099796.22gold quality
skin of legUBERON:000151196.22gold quality
zone of skinUBERON:000001495.88gold quality
upper leg skinUBERON:000426295.29gold quality
pharyngeal mucosaUBERON:000035594.97gold quality
male germ line stem cell (sensu Vertebrata) in testisCL:0000089 ∩ UBERON:000047394.79gold quality
amniotic fluidUBERON:000017393.72gold quality
penisUBERON:000098993.41gold quality
skin of hipUBERON:000155490.64gold quality
body of tongueUBERON:001187690.20silver quality
vaginaUBERON:000099687.74gold quality
buccal mucosa cellCL:000233687.71gold quality
hair follicleUBERON:000207387.30silver quality
mucosa of urinary bladderUBERON:000125986.95gold quality
tongueUBERON:000172386.25silver quality
upper arm skinUBERON:000426385.02gold quality
diaphragmUBERON:000110384.63gold quality
superior surface of tongueUBERON:000737179.30gold quality

Single-cell (SCXA)

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

ExperimentMarker?Max mean expression
E-ANND-3yes7.31

Regulation

Is transcription factor: no

Upstream regulators (CollecTRI, top): AP1, CEBPA, CEBPG, FOS, FOSL1, FOSL2, FOXN1, HOXA7, JUN, JUNB, JUND, KLF4, MED1, NFKB, PAX6, POU2F2, POU3F1, PPARG, RARG, SP1, SP3, SRF, STAT1, STAT5A, TEAD1, TFAP2A, TFAP2C, VDR, YY1

miRNA regulators (miRDB)

35 targeting IVL, 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-3924100.0072.092394
HSA-MIR-7110-3P100.0073.182486
HSA-MIR-4725-3P99.9669.532520
HSA-MIR-6780B-5P99.9669.602562
HSA-MIR-1236-3P99.9468.041695
HSA-MIR-427199.8868.322244
HSA-MIR-442099.8270.081624
HSA-MIR-6515-3P99.8268.191933
HSA-MIR-181B-2-3P99.8170.061646
HSA-MIR-181B-3P99.8170.061646
HSA-MIR-62399.7668.161170
HSA-MIR-4755-5P99.7170.342716
HSA-MIR-5006-3P99.7170.262728
HSA-MIR-80299.6167.701254
HSA-MIR-145-3P99.3367.66764
HSA-MIR-431199.3170.473041
HSA-MIR-544B99.1867.411632
HSA-MIR-6780B-3P99.1367.18622
HSA-MIR-4700-5P98.6367.431915
HSA-MIR-557298.5565.84970
HSA-MIR-6873-5P98.4566.141417
HSA-MIR-1304-3P98.2966.441207
HSA-MIR-92A-1-5P98.2864.51631
HSA-MIR-4638-3P97.9065.75905
HSA-MIR-337-3P97.9069.371052
HSA-MIR-808997.7466.211698
HSA-MIR-4667-5P97.6166.671683
HSA-MIR-6812-5P97.5665.391059
HSA-MIR-6855-5P97.5166.03830
HSA-MIR-6802-3P97.2965.42613

Literature-anchored findings (GeneRIF, showing 34)

  • involucrin gene contains distinct regulatory elements that regulate expression during epidermal differentiation (PMID:11850802)
  • transactivation of involucrin by lens epithelium-derived growth factor (LEDGF) (PMID:12126624)
  • the AP-1 site and the vitamin D response element in the involucrin promoter play important roles in mediating the action of 1,25-dihydroxyvitamin D3 on involucrin expression (PMID:12445200)
  • role for AP1 transcription factors in the regulation of human corneal epithelial cell involucrin gene expression. (PMID:15037572)
  • human involucrin promoter activity is regulated by green tea polyphenol and curcumin via opposing effects on CCAAT/enhancer-binding protein function (PMID:15044435)
  • cascade regulates activator protein one, Sp1, and CCATT/enhancer-binding protein transcription factor DNA binding to two discrete involucrin promoter regions, the distal- and proximal-regulatory regions, to regulate involucrin gene expression. (PMID:15191537)
  • cholesterol depletion alters involucrin gene expression through activation of p38alpha/beta. (PMID:15304097)
  • YY-1 and c-Jun transcription factors participate in the repression of the human involucrin promoter. (PMID:15586248)
  • Beta ig-h3 induces keratinocyte differentiation via modulation of involucrin and transglutaminase expression through the integrin alpha3beta1 and the phosphatidylinositol 3-kinase/Akt signaling pathway (PMID:15805105)
  • Involucrin expression of keratinocytes is suppressed by roxithromycin through direct inhibition of AP-1 and indirect inhibition of NF-kappaB. (PMID:16140218)
  • AP1, Sp1, and C/EBP transcription factors are required for appropriate differentiation-dependent involucrin expression. (PMID:16374477)
  • involucrin gene expression inhibition by apigenin is associated with a specific reduction in phosphorylation of protein kinase Cdelta Tyr311 (PMID:16982614)
  • Pyk2 regulation is associated with increased expression of Fra-1 and JunD, activator protein-1 transcription factors known to be required for involucrin expression. (PMID:17205062)
  • There is a major role for STAT5a in the differentiation of keratinocytes, where it contributes to involucrin expression by activating the PPARgamma signal. (PMID:17330131)
  • BAG-1L also potentiated transactivation of known vitamin-D-responsive gene promoters, osteocalcin and 24-hydroxylase, and enhanced VDR-dependent transcription and protein expression of the keratinocyte differentiation marker, involucrin. (PMID:17662274)
  • a large multiprotein complex, which includes Fra-1, p300, P/CAF, junD, junB, and Sp1 acts at the AP1-5 site to produce a synergistic increase in hINV gene expression (PMID:17882273)
  • These findings indicate that PKCdelta activity for activation of involucrin promoter requires Y(311) and a second tyrosine residue; however, any one of the several tyrosine residues can serve in the secondary role. (PMID:17943181)
  • The expression of beta1-integrin was found to be significantly reduced in photoaged skin and ratios of the expressions of involucrin to beta1-integrin were increased 2.6-fold only in elderly subjects. (PMID:17968567)
  • PPAR gamma regulates involucrin expression by controlling the AP-1 signal and p38 activation in 1 alpha,25(OH)2D3-induced keratinocyte differentiation. (PMID:18077140)
  • The expression of loricrin and involucrin in invovled and uninvolved skin of patients with atopic dermatitis is reported. (PMID:18166499)
  • siRNA for PRKD1 resulted in reduction of mRNA levels of PKD1, altered cell phenotype and promotion of keratinocyte differentiation, demonstrated by increased expression of involucrin and keratin 10 mRNAs (PMID:18259765)
  • RT-PCR and western blot analysis revealed a delay in the expression of the differentiation markers K1, K10 and involucrin in HaCaT cells compared with normal human keratinocytes (PMID:18637039)
  • Infection by HPV may alter the differentiation status of the epidermis, leading to earlier involucrin expression (PMID:19515043)
  • higher expression in the fetal skin than in adult skin (PMID:19701759)
  • expression of the epidermal differentiation complex genes filaggrin and involucrin was strongly decreased directly by IL-13. (PMID:20208004)
  • Therefore, together with trichohyalin, the cross-linking due to involucrin is also responsible for the mechanical resistance of the corneous trabeculae present among the empty spaces of the medulla of the human hair. (PMID:22197495)
  • The authors found that HPV 16 E6 but not E7 repressed IVL promoter activity in proliferating human foreskin keratinocyte cells. (PMID:22333115)
  • Compared with the control, the level of expression of the IVL gene in NCTC 2544 cells was increased after 8 h of treatment with hyaluronic acid or Plantaricin A preparations. (PMID:22742591)
  • involucrin is up-regulated in psoriatic keratinocytes (PMID:23283814)
  • KLF4 is part of a multiprotein complex that interacts that the hINV promoter distal regulatory region to drive differentiation-dependent hINV gene expression in epidermis. (PMID:23599428)
  • over-expression of Nnat was evident along with involucrin and cytokeratin1 expression (PMID:24252747)
  • Together, these results suggest that GR modulates involucrin expression of keratinocytes by regulating the intracellular signaling network in a ligand-independent manner. (PMID:24515279)
  • Regulation of Filaggrin, Loricrin, and Involucrin by IL-4, IL-13, IL-17A, IL-22, AHR, and NRF2: Pathogenic Implications in Atopic Dermatitis. (PMID:32751111)
  • Transcriptional activation of the involucrin gene by calcium in keratinocytes. (PMID:9159190)

Cross-species orthologs

0 orthologs

Protein

Protein identifiers

InvolucrinP07476 (reviewed: P07476)

All UniProt accessions (1): P07476

UniProt curated annotations — full annotation on UniProt →

Function. Part of the insoluble cornified cell envelope (CE) of stratified squamous epithelia.

Subunit / interactions. Directly or indirectly cross-linked to cornifelin (CNFN).

Subcellular location. Cytoplasm.

Tissue specificity. Keratinocytes of epidermis and other stratified squamous epithelia.

Post-translational modifications. Substrate of transglutaminase. Some glutamines and lysines are cross-linked to other involucrin molecules, to other proteins such as keratin, desmoplakin, periplakin and envoplakin, and to lipids like omega-hydroxyceramide.

Similarity. Belongs to the involucrin family.

RefSeq proteins (1): NP_005538* (*=MANE)

Domains & families (InterPro)

IDNameType
IPR000354Involucrin_rptRepeat
IPR019571Involucrin_NDomain
IPR019743Involucrin_CSConserved_site

Pfam: PF00904, PF10583

UniProt features (70 total): repeat 39, compositionally biased region 15, sequence variant 8, region of interest 3, lipid moiety-binding region 3, chain 1, cross-link 1

Structure

Experimental structures (PDB)

0 structures.

Predicted structure (AlphaFold)

ModelpLDDTFraction very-high
AF-P07476-F149.940.07

Functional residue map

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

Post-translational modifications (4): 79, 118, 133, 496

Function

Pathways and Gene Ontology

Reactome pathways

5 pathways

IDPathway
R-HSA-6809371Formation of the cornified envelope
R-HSA-9725554Differentiation of Keratinocytes in Interfollicular Epidermis in Mammalian Skin
R-HSA-1266738Developmental Biology
R-HSA-6805567Keratinization
R-HSA-9734767Developmental Cell Lineages

MSigDB gene sets: 108 (showing top): AP1_01, GOBP_EPITHELIUM_DEVELOPMENT, JAEGER_METASTASIS_DN, MORF_BRCA1, GOBP_PEPTIDE_CROSS_LINKING, MORF_ESR1, MORF_RAD51L3, ONDER_CDH1_TARGETS_3_DN, GOBP_EPIDERMAL_CELL_DIFFERENTIATION, GOBP_PEPTIDYL_LYSINE_MODIFICATION, RICKMAN_TUMOR_DIFFERENTIATED_WELL_VS_POORLY_DN, MODULE_379, HUPER_BREAST_BASAL_VS_LUMINAL_UP, GOBP_RESPONSE_TO_UV, GOBP_RESPONSE_TO_RADIATION

GO Biological Process (5): response to UV-B (GO:0010224), peptide cross-linking (GO:0018149), isopeptide cross-linking via N6-(L-isoglutamyl)-L-lysine (GO:0018153), keratinocyte differentiation (GO:0030216), keratinization (GO:0031424)

GO Molecular Function (1): protein binding (GO:0005515)

GO Cellular Component (6): cornified envelope (GO:0001533), cytoplasm (GO:0005737), centrosome (GO:0005813), cytosol (GO:0005829), nuclear body (GO:0016604), extracellular exosome (GO:0070062)

Reactome top-level categories

Rollup of top-3 pathways:

CategoryPathways
Developmental Biology2
Keratinization1
Developmental Cell Lineages of the Integumentary System1

GO top-level categories

Rollup of top GO terms by namespace:

CategoryTerms
cellular anatomical structure2
response to UV1
protein modification process1
peptidyl-glutamine modification1
peptidyl-lysine modification1
isopeptide cross-linking1
epidermal cell differentiation1
skin development1
keratinocyte differentiation1
multicellular organismal process1
binding1
plasma membrane1
intracellular anatomical structure1
centriole1
microtubule organizing center1
cytoplasm1
nucleoplasm1
intracellular membraneless organelle1
extracellular vesicle1

Protein interactions and networks

STRING

1390 interactions, top by confidence (×1000):

Protein AProtein BPartner UniProtScore
IVLLORICRINP23490999
IVLFLG2Q5D862995
IVLFLGP20930994
IVLTCHHQ07283977
IVLKRT10P13645933
IVLSPRR1BP22528903
IVLSPRR1AP35321899
IVLTGM1P22735896
IVLSPRR3Q9UBC9866
IVLKRT1P04264850
IVLCNFNQ9BYD5823
IVLS100A10P08206805
IVLPPLO60437777
IVLEVPLQ92817766
IVLTGM3Q08188741

IntAct

130 interactions, top by confidence:

ABTypeScore
JADE1KAT7psi-mi:“MI:0914”(association)0.720
GID8PGRMC2psi-mi:“MI:0914”(association)0.640
SINHCAFTNRC18psi-mi:“MI:0914”(association)0.640
ZSCAN12A2ML1psi-mi:“MI:0914”(association)0.530
NPPAA2ML1psi-mi:“MI:0914”(association)0.530
FTH1A2ML1psi-mi:“MI:0914”(association)0.530
FRMD1A2ML1psi-mi:“MI:0914”(association)0.530
GMCL1A2ML1psi-mi:“MI:0914”(association)0.530
UGT1A10A2ML1psi-mi:“MI:0914”(association)0.530
TBC1D22BA2ML1psi-mi:“MI:0914”(association)0.530
RBM24PPLpsi-mi:“MI:0914”(association)0.530
KIR3DS1PPLpsi-mi:“MI:0914”(association)0.530
ACAD9PPLpsi-mi:“MI:0914”(association)0.530
ZIC1CTSVpsi-mi:“MI:0914”(association)0.530
RNF25IVLpsi-mi:“MI:0914”(association)0.530
SSBP2CLEC18Apsi-mi:“MI:0914”(association)0.530
IVLACDpsi-mi:“MI:0915”(physical association)0.510
CRKIVLpsi-mi:“MI:0407”(direct interaction)0.440
IVLDHRS2psi-mi:“MI:0915”(physical association)0.400
POT1IVLpsi-mi:“MI:0915”(physical association)0.370

BioGRID (168): IVL (Affinity Capture-MS), IVL (Affinity Capture-MS), IVL (Affinity Capture-MS), IVL (Affinity Capture-MS), IVL (Affinity Capture-MS), IVL (Affinity Capture-MS), IVL (Affinity Capture-MS), IVL (Affinity Capture-MS), IVL (Affinity Capture-MS), IVL (Affinity Capture-MS), IVL (Proximity Label-MS), IVL (Affinity Capture-MS), IVL (Affinity Capture-MS), IVL (Affinity Capture-MS), IVL (Affinity Capture-MS)

ESM2 similar proteins: A0A087WUL8, A0A0J9YWL9, A0A0J9YY54, A0A1B0GV03, A2A6M5, A6NEF3, A6NI86, A8MXY4, A8MZA4, B4DH59, H0YKK7, H0YM25, P06916, P07476, P0DPF3, P0DX00, P0DX01, P0DX02, P13813, P14590, P14591, P14708, P18175, P21850, P22793, P24708, P24711, P37709, P97347, Q07283, Q3BBV0, Q3BBV2, Q5TAG4, Q5TI25, Q6AXX0, Q6P3W6, Q86T75, Q8HXZ7, Q8HXZ8, Q8HY03

Diamond homologs: P07476, P14590, P14591, P14708, P17941, P18174, P18175, P24708, P24709, P24710, P24711, P24712, P48997, P48998, Q95337

SIGNOR signaling

1 interactions.

AEffectBMechanism
HOXA7“down-regulates quantity by repression”IVL“transcriptional regulation”

Disease & clinical

Clinical variants and AI predictions

ClinVar

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

ClassificationCount (floor)
Pathogenic0
Likely pathogenic0
Uncertain significance120
Likely benign20
Benign10

Top pathogenic / likely-pathogenic (0)

SpliceAI

202 predictions. Top by Δscore:

VariantEffectΔscore
1:152908585:GTCTG:Gdonor_gain0.9900
1:152908587:CTGG:Cdonor_loss0.9900
1:152908588:TGGT:Tdonor_loss0.9900
1:152908590:G:GAdonor_loss0.9900
1:152908591:TAAG:Tdonor_loss0.9900
1:152909774:TTCAG:Tacceptor_loss0.9900
1:152909778:G:GAacceptor_loss0.9900
1:152908590:G:GGdonor_gain0.9800
1:152908776:GAGA:Gdonor_gain0.9800
1:152909770:GTCTT:Gacceptor_loss0.9700
1:152909771:TCTTT:Tacceptor_loss0.9700
1:152909772:CTTTC:Cacceptor_loss0.9700
1:152909777:A:AGacceptor_gain0.9700
1:152909778:G:GGacceptor_gain0.9700
1:152908777:A:Tdonor_gain0.9600
1:152908780:G:GGdonor_gain0.9600
1:152908592:AAGT:Adonor_loss0.9500
1:152908581:G:GGdonor_gain0.9400
1:152908778:GA:Gdonor_gain0.9400
1:152908586:TCTG:Tdonor_gain0.9300
1:152909778:GGTT:Gacceptor_gain0.9300
1:152909769:T:Aacceptor_loss0.9200
1:152908779:A:AGdonor_gain0.9000
1:152908588:TG:Tdonor_gain0.8900
1:152908589:GG:Gdonor_gain0.8900
1:152908783:A:AGdonor_gain0.8900
1:152908587:CTG:Cdonor_gain0.8700
1:152909776:CAGG:Cacceptor_gain0.8300
1:152908784:T:Gdonor_gain0.8000
1:152909778:GGT:Gacceptor_gain0.8000

AlphaMissense

3848 scored. Top likely-pathogenic:

VariantProtein changeam_pathogenicity
1:152911430:T:CF545L0.768
1:152911432:T:AF545L0.768
1:152911432:T:GF545L0.768
1:152910210:T:CL138P0.577

dbSNP variants (sampled 300 via entrez): RS1000408101 (1:152909271 A>C), RS1000547039 (1:152910584 C>T), RS1000572967 (1:152906681 G>A,C), RS1000691868 (1:152910748 G>A,T), RS1000781975 (1:152910915 T>C,G), RS1001143738 (1:152911460 A>C,G), RS1001215340 (1:152907925 C>A), RS1001758745 (1:152911026 A>T), RS1001969668 (1:152907216 G>A,C), RS1002095712 (1:152911963 G>A,T), RS1002256583 (1:152907584 G>A), RS1002487442 (1:152906956 A>C), RS1004045633 (1:152908632 C>T), RS1005024927 (1:152909166 C>T), RS1007552982 (1:152910555 T>C)

Disease associations

OMIM: gene MIM:147360 | disease phenotypes:

GenCC curated gene-disease

Mondo (0):

Orphanet (0):

HPO phenotypes

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

GWAS associations

2 associations (top):

StudyTraitp-value
GCST003191_2Vitamin D levels1.000000e-06
GCST008916_87Asthma2.000000e-13

Drugs & pharmacology

Drug and pharmacology data

Is drug target: no

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

CTD chemical–gene interactions

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

ChemicalActions (top 5)PubMed papers
sodium arseniteincreases expression, affects binding, affects reaction, decreases reaction, decreases expression (+1 more)9
Tretinoindecreases expression, decreases reaction, increases expression7
sodium arsenatedecreases expression, increases abundance5
Tobacco Smoke Pollutiondecreases expression, increases expression, affects expression5
Tamoxifenaffects reaction, decreases expression, affects expression, affects cotreatment3
Vanadatesdecreases expression3
Particulate Matterdecreases expression, increases abundance, increases expression3
bisphenol Aaffects expression, increases methylation, affects reaction2
arsenitedecreases reaction, increases abundance, decreases expression2
hydroquinoneincreases expression2
Alitretinoindecreases expression, increases expression2
Antimony Potassium Tartratedecreases expression, increases abundance2
Calcitrioldecreases expression2
Estradiolaffects cotreatment, increases expression, decreases expression, decreases reaction2
Formaldehydeincreases expression2
Cadmium Chloridedecreases expression, increases expression2
Raloxifene Hydrochlorideaffects cotreatment, decreases expression, affects expression2
4-oxoretinoic acidincreases expression1
apocarotenalincreases expression1
pyrogallol 1,3-dimethyl etheraffects cotreatment, affects localization, decreases expression1
methylparabenincreases expression1
oltiprazdecreases expression1
potassium chromate(VI)decreases expression1
perillyl alcoholdecreases expression1
4-bromo-A-23187increases expression1
4-(2-(5,6,7,8-tetrahydro-5,5,8,8-tetramethyl-2-naphthalenyl)-1-propenyl)benzoic aciddecreases expression1
4-oxoretinolincreases expression1
molybdatedecreases expression1
tungstatedecreases expression1
1,2-dithiol-3-thionedecreases expression1

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.