RGMA
Repulsive guidance molecule A
Also known as: RGM, RGMA_HUMAN
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- Q96B86
- Gene
- RGMA
- Ensembl
- ENSG00000182175
- Chromosome
- 15
- Canonical length
- 450 aa
- Protein class
- Predicted intracellular proteins, Predicted secreted proteins
- Subcellular location
- Nucleoplasm,Cytosol
- Secretome location
- Secreted - unknown location
OverviewNCBI Gene
This gene encodes a member of the repulsive guidance molecule family. The encoded protein is a glycosylphosphatidylinositol-anchored glycoprotein that functions as an axon guidance protein in the developing and adult central nervous system. This protein may also function as a tumor suppressor in some cancers. Alternate splicing results in multiple transcript variants. [provided by RefSeq, Oct 2009]
Canonical amino-acid sequenceUniProt
450 residues, UniProt reviewed canonical sequence.
>Q96B86|RGMA
1 MQPPRERLVV TGRAGWMGMG RGAGRSALGF WPTLAFLLCS FPAATSPCKI LKCNSEFWSA
61 TSGSHAPASD DTPEFCAALR SYALCTRRTA RTCRGDLAYH SAVHGIEDLM SQHNCSKDGP
121 TSQPRLRTLP PAGDSQERSD SPEICHYEKS FHKHSATPNY THCGLFGDPH LRTFTDRFQT
181 CKVQGAWPLI DNNYLNVQVT NTPVLPGSAA TATSKLTIIF KNFQECVDQK VYQAEMDELP
241 AAFVDGSKNG GDKHGANSLK ITEKVSGQHV EIQAKYIGTT IVVRQVGRYL TFAVRMPEEV
301 VNAVEDWDSQ GLYLCLRGCP LNQQIDFQAF HTNAEGTGAR RLAAASPAPT APETFPYETA
361 VAKCKEKLPV EDLYYQACVF DLLTTGDVNF TLAAYYALED VKMLHSNKDK LHLYERTRDL
421 PGRAAAGLPL APRPLLGALV PLLALLPVFCLocalizationUniProt · AlphaFold · HPA
Whether an antibody against RGMA 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
- 0
- Mean surface accessibility (rSASA)
- 0.37
- Highest tissue expression
- 189 nTPM
Expression across tissuesHPA
Tissue
- skeletal muscle: 189 nTPM
- midbrain: 79 nTPM
- colon: 75 nTPM
- stomach: 70 nTPM
- cerebral cortex: 65 nTPM
- cervix: 64 nTPM
Single-cell type
- astrocytes: 289 nCPM
- bergmann glia: 266 nCPM
- leydig cells: 199 nCPM
- peritubular myoid cells: 166 nCPM
- fibro-adipogenic progenitors: 156 nCPM
- ependymal cells: 111 nCPM
Immune cell
- neutrophil: 0.2 nTPM
- basophil: 0.1 nTPM
- intermediate monocyte: 0.1 nTPM
- classical monocyte: 0 nTPM
- eosinophil: 0 nTPM
- gdT-cell: 0 nTPM
Brain region
- medulla oblongata: 276 nTPM
- thalamus: 261 nTPM
- midbrain: 250 nTPM
- spinal cord: 202 nTPM
- basal ganglia: 160 nTPM
- cerebellum: 159 nTPM
ReferencesPubMed · IEDB
Publications for RGMA from three distinct lines of evidence, kept separate because they answer different questions: whether antibodies are directed at the protein, whether a B-cell epitope has been mapped on it, and whether a T-cell epitope has. Each is labelled with its source.
Reference: AutoantibodyPubMed
2 publications
- RGMa modulates T cell responses and is involved in autoimmune encephalomyelitis.
2011 · Nat Med · RCR 2.2 · 103 citations - Inhibition of repulsive guidance molecule-a ameliorates compromised blood-spinal cord barrier integrity associated with neuromyelitis optica in rats.
2024 · J Neuroimmunol · RCR 1.2 · 5 citations
Sources: PubMed — antigen-level antibody evidence from a custom retrieval. Records matching a controlled set of autoantibody terms (the MeSH descriptors Autoantibodies and Autoantigens, with title and abstract term variants) were obtained through NCBI E-utilities, and their titles and abstracts parsed for constructions that direct an antibody at a named protein rather than for co-occurrence. Captured names were resolved against UniProt nomenclature and each antigen adjudicated individually against the source text. Bibliographic records from PubMed and MeSH, U.S. National Library of Medicine; citation metrics from NIH iCite (Hutchins et al., PLoS Biology 2016). Titles link to PubMed; abstracts are not reproduced here. The NLM does not endorse this analysis.
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)
- 0.62
- gnomAD pLI
- 0.16
- gnomAD missense Z
- 0.99
- DepMap mean gene effect
- 0
- DepMap dependency class
- none
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
- BMP signaling pathway
- membrane protein ectodomain proteolysis
- negative regulation of axon regeneration
- negative regulation of collateral sprouting
- neural tube closure
- neuron projection development
- positive regulation of membrane protein ectodomain proteolysis
- positive regulation of neuron projection development
- positive regulation of transcription by RNA polymerase II
- regulation of BMP signaling pathway
Molecular functions
Cellular components
Protein domainsUniProt · Pfam · InterPro
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of RGMA 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 RGMA as an antibody target. Whether an autoantibody or antibody against RGMA could matter depends on whether native RGMA is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
RGMA is annotated at the cell surface, where native RGMA 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 RGMA as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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