AMIGO1
Amphoterin-induced protein 1
Also known as: AMGO1_HUMAN, AMIGO, KIAA1163
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- Q86WK6
- Gene
- AMIGO1
- Ensembl
- ENSG00000181754
- Chromosome
- 1
- Canonical length
- 493 aa
- Protein class
- Predicted membrane proteins, Transporters
- Subcellular location
- Vesicles
- Quaternary structure
- Homodimer
OverviewNCBI Gene
Predicted to enable potassium channel regulator activity. Predicted to be involved in several processes, including heterophilic cell-cell adhesion via plasma membrane cell adhesion molecules; nervous system development; and positive regulation of nervous system development. Predicted to be located in dendrite; neuronal cell body membrane; and voltage-gated potassium channel complex. Predicted to be active in membrane. [provided by Alliance of Genome Resources, Jul 2025]
Canonical amino-acid sequenceUniProt
493 residues, UniProt reviewed canonical sequence.
>Q86WK6|AMIGO1
1 MHPHRDPRGL WLLLPSLSLL LFEVARAGRA VVSCPAACLC ASNILSCSKQ QLPNVPHSLP
61 SYTALLDLSH NNLSRLRAEW TPTRLTQLHS LLLSHNHLNF ISSEAFSPVP NLRYLDLSSN
121 QLRTLDEFLF SDLQVLEVLL LYNNHIMAVD RCAFDDMAQL QKLYLSQNQI SRFPLELVKE
181 GAKLPKLTLL DLSSNKLKNL PLPDLQKLPA WIKNGLYLHN NPLNCDCELY QLFSHWQYRQ
241 LSSVMDFQED LYCMNSKKLH NVFNLSFLNC GEYKERAWEA HLGDTLIIKC DTKQQGMTKV
301 WVTPSNERVL DEVTNGTVSV SKDGSLLFQQ VQVEDGGVYT CYAMGETFNE TLSVELKVHN
361 FTLHGHHDTL NTAYTTLVGC ILSVVLVLIY LYLTPCRCWC RGVEKPSSHQ GDSLSSSMLS
421 TTPNHDPMAG GDKDDGFDRR VAFLEPAGPG QGQNGKLKPG NTLPVPEATG KGQRRMSDPE
481 SVSSVFSDTP IVVLocalizationUniProt · AlphaFold · HPA
Whether an antibody against AMIGO1 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
- Cell surface
- Secreted
- No
- Transmembrane segments
- 1
- Mean surface accessibility (rSASA)
- 0.39
- Highest tissue expression
- 22 nTPM
Expression across tissuesHPA
Tissue
- retina: 22 nTPM
- cerebellum: 20 nTPM
- cerebral cortex: 19 nTPM
- skeletal muscle: 18 nTPM
- basal ganglia: 13 nTPM
- hypothalamus: 12 nTPM
Single-cell type
- retinal bipolar cells: 22 nCPM
- retinal amacrine cells: 16 nCPM
- brain inhibitory neurons: 14 nCPM
- oocytes: 14 nCPM
- retinal pigment epithelial cells: 13 nCPM
- other brain neurons: 12 nCPM
Immune cell
- naive CD4 T-cell: 2.3 nTPM
- naive CD8 T-cell: 1.7 nTPM
- memory CD8 T-cell: 1.1 nTPM
- memory CD4 T-cell: 0.9 nTPM
- NK-cell: 0.9 nTPM
- MAIT T-cell: 0.7 nTPM
Brain region
- cerebral cortex: 47 nTPM
- basal ganglia: 34 nTPM
- hypothalamus: 32 nTPM
- pons: 32 nTPM
- thalamus: 32 nTPM
- hippocampal formation: 30 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)
- 0.24
- gnomAD pLI
- 0.98
- gnomAD missense Z
- 2.86
- DepMap mean gene effect
- -0.15
- DepMap dependency class
- selective
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 5% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).
OntologyGO
Biological processes
- axonal fasciculation
- axonogenesis
- brain development
- cellular response to L-glutamate
- heterophilic cell-cell adhesion via plasma membrane cell adhesion molecules
- homophilic cell adhesion via plasma membrane adhesion molecules
- myelination
- positive regulation of axonogenesis
- positive regulation of neuron projection development
- positive regulation of potassium ion transmembrane transport
- positive regulation of synapse assembly
Molecular functions
Cellular components
Protein domainsUniProt · Pfam · InterPro
- Cysteine-rich flanking region, C-terminal
- Leucine-rich repeat
- Leucine-rich repeat, typical subtype
- Immunoglobulin domain subtype
- Immunoglobulin-like domain
- Immunoglobulin I-set
- Immunoglobulin-like fold
- Amphoterin-induced protein
- Leucine-rich repeat domain superfamily
- Immunoglobulin-like domain superfamily
- Leucine Rich Repeat
- Immunoglobulin I-set domain
- Leucine rich repeat
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of AMIGO1 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 AMIGO1 as an antibody target. Whether an autoantibody or antibody against AMIGO1 could matter depends on whether native AMIGO1 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
AMIGO1 is annotated at the cell surface, where native AMIGO1 is exposed to circulating antibodies and is a prime autoantibody target that could block, deplete, or overstimulate it.
Annotation status
The present source text does not explicitly label AMIGO1 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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