Seroatlas · Human Serome Atlas

MRAS

Ras-related protein M-Ras

Also known as: M-RAs, R-RAS3, RASM_HUMAN, RRAS3

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

Protein identityUniProt · HPA

UniProt accession
O14807
Gene
MRAS
Ensembl
ENSG00000158186
Chromosome
3
Canonical length
208 aa
Protein class
Disease related genes, Enzymes, Human disease related genes, Potential drug targets, Predicted intracellular proteins, RAS pathway related proteins
Subcellular location
Vesicles,Cytosol

OverviewNCBI Gene

This gene encodes a member of the Ras family of small GTPases. These membrane-associated proteins function as signal transducers in multiple processes including cell growth and differentiation, and dysregulation of Ras signaling has been associated with many types of cancer. The encoded protein may play a role in the tumor necrosis factor-alpha and MAP kinase signaling pathways. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene. [provided by RefSeq, Nov 2011]

Canonical amino-acid sequenceUniProt

208 residues, UniProt reviewed canonical sequence.

>O14807|MRAS
     1  MATSAVPSDN LPTYKLVVVG DGGVGKSALT IQFFQKIFVP DYDPTIEDSY LKHTEIDNQW
    61  AILDVLDTAG QEEFSAMREQ YMRTGDGFLI VYSVTDKASF EHVDRFHQLI LRVKDRESFP
   121  MILVANKVDL MHLRKITREQ GKEMATKHNI PYIETSAKDP PLNVDKAFHD LVRVIRQQIP
   181  EKSQKKKKKT KWRGDRATGT HKLQCVIL

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against MRAS 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)
0.33
Highest tissue expression
113 nTPM

Expression across tissuesHPA

Tissue

  • heart muscle: 113 nTPM
  • basal ganglia: 112 nTPM
  • cerebral cortex: 107 nTPM
  • midbrain: 107 nTPM
  • adipose tissue: 86 nTPM
  • hypothalamus: 79 nTPM

Single-cell type

  • adipocytes: 149 nCPM
  • astrocytes: 132 nCPM
  • cardiomyocytes: 127 nCPM
  • late spermatids: 103 nCPM
  • adrenal cortex cells: 88 nCPM
  • bergmann glia: 87 nCPM

Immune cell

  • non-classical monocyte: 25 nTPM
  • intermediate monocyte: 4.1 nTPM
  • myeloid DC: 2.7 nTPM
  • classical monocyte: 2.1 nTPM
  • NK-cell: 0.8 nTPM
  • total PBMC: 0.8 nTPM

Brain region

  • thalamus: 371 nTPM
  • midbrain: 225 nTPM
  • hypothalamus: 219 nTPM
  • basal ganglia: 211 nTPM
  • medulla oblongata: 204 nTPM
  • cerebellum: 187 nTPM

DiseaseUniProt · ClinVar · IEDB · PubMed

Four sources answering four different questions about MRAS.

Disease | AllUniProt

Conditions MRAS is implicated in, by any mechanism.

Disease | GeneticClinVar

5 pathogenic / likely-pathogenic of 264 ClinVar records.

Conditions with pathogenic or likely-pathogenic variants.

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)
0.37
gnomAD pLI
0.92
gnomAD missense Z
2.33
DepMap mean gene effect
-0.02
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

Molecular functions

Cellular components

Protein domainsUniProt · Pfam · InterPro

KeywordsUniProt

InteractionsUniProt · HPA

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

MRAS is annotated at the cell surface, where native MRAS 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 MRAS as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.

Canonical record: https://seroatlas.com/gene/MRAS. 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).

Loading the interactive Seroatlas protein explorer...