Seroatlas · Human Serome Atlas

IGFL3

Insulin growth factor-like family member 3

Also known as: IGFL3_HUMAN, UNQ483

Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene

Protein identityUniProt · HPA

UniProt accession
Q6UXB1
Gene
IGFL3
Ensembl
ENSG00000188624
Chromosome
19
Canonical length
125 aa
Protein class
Predicted secreted proteins
Secretome location
Secreted in other tissues

OverviewNCBI Gene

IGFL3 belongs to the insulin-like growth factor (IGF; see MIM 147440) family of signaling molecules that play critical roles in cellular energy metabolism and in growth and development, especially prenatal growth (Emtage et al., 2006 [PubMed 16890402]).[supplied by OMIM, Mar 2008]

Canonical amino-acid sequenceUniProt

125 residues, UniProt reviewed canonical sequence.

>Q6UXB1|IGFL3
     1  MRPRCCILAL VCWITVFLLQ CSKGTTDAPV GSGLWLCQPT PRCGNKIYNP SEQCCYDDAI
    61  LSLKETRRCG STCTFWPCFE LCCPESFGPQ QKFLVKLRVL GMKSQCHLSP ISRSCTRNRR
   121  HVLYP

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against IGFL3 can act on the native protein depends on physical access: surface and secreted proteins are reachable by circulating antibodies, intracellular proteins usually are not.

Antibody reachability
Secreted
Secreted
Yes
Transmembrane segments
0
Mean surface accessibility (rSASA)
0.48
Highest tissue expression
26 nTPM

Expression across tissuesHPA

Tissue

  • skin: 26 nTPM
  • breast: 1.4 nTPM
  • parathyroid gland: 0.5 nTPM
  • retina: 0.4 nTPM
  • epididymis: 0.3 nTPM
  • skeletal muscle: 0.3 nTPM

Single-cell type

  • suprabasal keratinocytes: 6.3 nCPM
  • medullary thymic epithelial cells: 4.8 nCPM
  • cone photoreceptor cells: 2.1 nCPM
  • kupffer cells: 2 nCPM
  • basal keratinocytes: 1.5 nCPM
  • late spermatids: 1.1 nCPM

Immune cell

  • naive B-cell: 0.1 nTPM
  • basophil: 0 nTPM
  • classical monocyte: 0 nTPM
  • eosinophil: 0 nTPM
  • gdT-cell: 0 nTPM
  • intermediate monocyte: 0 nTPM

Brain region

  • white matter: 13 nTPM
  • basal ganglia: 11 nTPM
  • cerebral cortex: 11 nTPM
  • pons: 11 nTPM
  • medulla oblongata: 10 nTPM
  • amygdala: 9.3 nTPM

Genetic constraint and essentialitygnomAD · DepMap

Does the body need this protein intact? Low LOEUF or a strong DepMap dependency means loss or blockade of the protein is likely to be felt.

gnomAD LOEUF (loss-of-function intolerance)
1.18
gnomAD pLI
0.01
gnomAD missense Z
0.15
DepMap mean gene effect
-0.02
DepMap dependency class
selective

Cancer expressionTCGA

Across TCGA tumor cohorts, this protein is over-expressed in roughly 3% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).

OntologyGO

Molecular functions

Cellular components

Protein domainsUniProt · Pfam · InterPro

KeywordsUniProt

Antibody and autoantibody relevanceSeroatlas analysis

Seroatlas reads IGFL3 as an antibody target. Whether an autoantibody or antibody against IGFL3 could matter depends on whether native IGFL3 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.

IGFL3 is annotated as secreted, so native IGFL3 circulates and is directly accessible to antibodies. Secreted and cell-surface proteins are the autoantibody targets most likely to act like drugs, blocking or depleting the native protein.

Annotation status

The present source text does not explicitly label IGFL3 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.

Canonical record: https://seroatlas.com/gene/IGFL3. Study-independent annotations aggregated from UniProt, Human Protein Atlas, PubMed, IEDB, Pfam, InterPro, Gene Ontology, AlphaFold, gnomAD, DepMap, ClinVar, TCGA. Catalog release seroatlas-reviewed-human-uniprot-20260313.

Seroatlas is the reference for exploring autoantibody and antibody serology at the human-protein level: the autoreactome and human serome, multiplex serology (HuProt, HuScan, VirScan, PhIP-Seq).

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