RHOT2
Mitochondrial Rho GTPase 2
Also known as: ARHT2, C16orf39, MIRO-2, MIRO2, MIRO2_HUMAN
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- Q8IXI1
- Gene
- RHOT2
- Ensembl
- ENSG00000140983
- Chromosome
- 16
- Canonical length
- 618 aa
- Protein class
- Predicted intracellular proteins, Predicted membrane proteins
- Subcellular location
- Mitochondria
- Quaternary structure
- Homodimer
OverviewNCBI Gene
This gene encodes a member of the Rho family of GTPases. The encoded protein is localized to the outer mitochondrial membrane and plays a role in mitochondrial trafficking and fusion-fission dynamics. [provided by RefSeq, Nov 2011]
Canonical amino-acid sequenceUniProt
618 residues, UniProt reviewed canonical sequence.
>Q8IXI1|RHOT2
1 MRRDVRILLL GEAQVGKTSL ILSLVGEEFP EEVPPRAEEI TIPADVTPEK VPTHIVDYSE
61 AEQTDEELRE EIHKANVVCV VYDVSEEATI EKIRTKWIPL VNGGTTQGPR VPIILVGNKS
121 DLRSGSSMEA VLPIMSQFPE IETCVECSAK NLRNISELFY YAQKAVLHPT APLYDPEAKQ
181 LRPACAQALT RIFRLSDQDL DQALSDEELN AFQKSCFGHP LAPQALEDVK TVVCRNVAGG
241 VREDRLTLDG FLFLNTLFIQ RGRHETTWTI LRRFGYSDAL ELTADYLSPL IHVPPGCSTE
301 LNHLGYQFVQ RVFEKHDQDR DGALSPVELQ SLFSVFPAAP WGPELPRTVR TEAGRLPLHG
361 YLCQWTLVTY LDVRSCLGHL GYLGYPTLCE QDQAHAITVT REKRLDQEKG QTQRSVLLCK
421 VVGARGVGKS AFLQAFLGRG LGHQDTREQP PGYAIDTVQV NGQEKYLILC EVGTDGLLAT
481 SLDATCDVAC LMFDGSDPKS FAHCASVYKH HYMDGQTPCL FVSSKADLPE GVAVSGPSPA
541 EFCRKHRLPA PVPFSCAGPA EPSTTIFTQL ATMAAFPHLV HAELHPSSFW LRGLLGVVGA
601 AVAAVLSFSL YRVLVKSQLocalizationUniProt · AlphaFold · HPA
Whether an antibody against RHOT2 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
- Other membrane
- Secreted
- No
- Transmembrane segments
- 1
- Mean surface accessibility (rSASA)
- 0.28
- Highest tissue expression
- 67 nTPM
Expression across tissuesHPA
Tissue
- cerebellum: 67 nTPM
- spleen: 58 nTPM
- heart muscle: 54 nTPM
- pituitary gland: 52 nTPM
- prostate: 51 nTPM
- kidney: 50 nTPM
Single-cell type
- rod photoreceptor cells: 131 nCPM
- cone photoreceptor cells: 114 nCPM
- syncytiotrophoblasts: 77 nCPM
- cytotrophoblasts: 76 nCPM
- sertoli cells: 74 nCPM
- early primary spermatocytes: 63 nCPM
Immune cell
- gdT-cell: 23 nTPM
- intermediate monocyte: 23 nTPM
- T-reg: 23 nTPM
- eosinophil: 22 nTPM
- plasmacytoid DC: 20 nTPM
- classical monocyte: 20 nTPM
Brain region
- choroid plexus: 28 nTPM
- cerebral cortex: 22 nTPM
- hippocampal formation: 20 nTPM
- medulla oblongata: 20 nTPM
- thalamus: 20 nTPM
- amygdala: 19 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)
- 1.43
- gnomAD pLI
- 0
- gnomAD missense Z
- -1.4
- DepMap mean gene effect
- -0.04
- DepMap dependency class
- selective
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 6% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).
OntologyGO
Biological processes
- cellular homeostasis
- mitochondrial outer membrane permeabilization
- mitochondrion organization
- mitochondrion transport along microtubule
Molecular functions
- ATP hydrolysis activity
- calcium ion binding
- GDP binding
- GTP binding
- GTPase activity
- magnesium ion binding
Cellular components
Protein domainsUniProt · Pfam · InterPro
- Small GTPase
- EF-hand domain
- EF-hand domain pair
- Mitochondrial Rho GTPase 1/3, EF hand associated, type-1
- EF hand associated, type-2
- EF-Hand 1, calcium-binding site
- MIRO domain
- Mitochondrial Rho GTPase
- P-loop containing nucleoside triphosphate hydrolase
- Mitochondrial Rho GTPase/EF-hand domain-containing protein
- Ras family
- EF hand associated
- EF hand associated
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of RHOT2 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 RHOT2 as an antibody target. Whether an autoantibody or antibody against RHOT2 could matter depends on whether native RHOT2 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
RHOT2 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 RHOT2 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
Loading the interactive Seroatlas protein explorer...