INSC
Protein inscuteable homolog
Also known as: INSC_HUMAN
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- Q1MX18
- Gene
- INSC
- Ensembl
- ENSG00000188487
- Chromosome
- 11
- Canonical length
- 579 aa
- Protein class
- Predicted intracellular proteins
OverviewNCBI Gene
In Drosophila, neuroblasts divide asymmetrically into another neuroblast at the apical side and a smaller ganglion mother cell on the basal side. Cell polarization is precisely regulated by 2 apically localized multiprotein signaling complexes that are tethered by Inscuteable, which regulates their apical localization (Izaki et al., 2006 [PubMed 16458856]).[supplied by OMIM, Mar 2008]
Canonical amino-acid sequenceUniProt
579 residues, UniProt reviewed canonical sequence.
>Q1MX18|INSC
1 MRRPPGNGEA ASEGPGGWGL WGVQESRRLC CAGHDRCKQA LLQIGINMMA LPGGRHLDSV
61 TLPGQRLHLM QVDSVQRWME DLKLMTECEC MCVLQAKPIS LEEDAQGDLI LAGGPGPGDP
121 LQLLLKRGWV ISTELRRIGQ KLAQDRWARV HSMSVRLTCH ARSMVSEYSA VSRNSLKEMG
181 EIEKLLMEKC SELSAVTERC LQVENEHVLK SMKACVSETL SMLGQHFGQL LELALTREVQ
241 ALVRKIDASD NIYTTESTTG NLFSLTQEGA PLCRIIAKEG GVVALFKVCR QDSFRCLYPQ
301 ALRTLASICC VEEGVHQLEK VDGVLCLADI LTDNSHSEAT RAEAAAVVAQ VTSPHLPVTQ
361 HLSSFLESME EIVTALVKLC QEASSGEVFL LASAALANIT FFDTMACEML LQLNAIRVLL
421 EACSDKQRVD TPYTRDQIVT ILANMSVLEQ CASDIIQENG VQLIMGMLSE KPRSGTPAEV
481 AACERVQQKA AVTLARLSRD PDVAREAVRL SCMSRLIELC RSPSERNSSD AVLVACLAAL
541 RRLAGVCPEG LQDSDFQQLV QPRLVDSFLL CSNMEESFVLocalizationUniProt · AlphaFold · HPA
Whether an antibody against INSC 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
- Intracellular
- Secreted
- No
- Transmembrane segments
- 0
- Mean surface accessibility (rSASA)
- 0.34
- Highest tissue expression
- 24 nTPM
Expression across tissuesHPA
Tissue
- parathyroid gland: 24 nTPM
- colon: 4.6 nTPM
- small intestine: 2.8 nTPM
- stomach: 2.3 nTPM
- duodenum: 2 nTPM
- rectum: 1.7 nTPM
Single-cell type
- schwann cells: 117 nCPM
- prostatic club cells: 30 nCPM
- foveolar cells: 19 nCPM
- oocytes: 14 nCPM
- thyrotrophs: 14 nCPM
- oligodendrocyte progenitor cells: 12 nCPM
Immune cell
- NK-cell: 0.4 nTPM
- neutrophil: 0.3 nTPM
- basophil: 0.2 nTPM
- classical monocyte: 0 nTPM
- eosinophil: 0 nTPM
- gdT-cell: 0 nTPM
Brain region
- medulla oblongata: 1 nTPM
- hypothalamus: 0.8 nTPM
- pons: 0.8 nTPM
- basal ganglia: 0.7 nTPM
- cerebral cortex: 0.7 nTPM
- midbrain: 0.7 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)
- 1.32
- gnomAD pLI
- 0
- gnomAD missense Z
- -0.19
- DepMap mean gene effect
- -0.12
- 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
Biological processes
- apical protein localization
- asymmetric cell division
- cell differentiation
- nervous system development
- regulation of asymmetric cell division
- regulation of protein stability
Molecular functions
Cellular components
Protein domainsUniProt · Pfam · InterPro
- Armadillo
- Armadillo-like helical
- Armadillo-type fold
- Protein inscuteable homologue, LGN-binding domain
- Protein inscuteable homologue, LGN-binding domain superfamily
- Inscuteable
- Protein inscuteable homologue, C-terminal domain
- Inscuteable LGN-binding domain
- Protein inscuteable C-terminal
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of INSC in the human serome: UniProt-annotated complex subunits plus reported interactors. Each links to its own Seroatlas record.
Antibody and autoantibody relevanceSeroatlas analysis
Seroatlas reads INSC as an antibody target. Whether an autoantibody or antibody against INSC could matter depends on whether native INSC is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
INSC is annotated as predominantly intracellular. Intracellular proteins are common autoantibody markers, becoming visible to the immune system after cell injury or altered processing, but are usually markers of disease rather than direct drivers.
Annotation status
The present source text does not explicitly label INSC as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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