RNH1
Ribonuclease inhibitor
Also known as: RAI, RINI_HUMAN, RNH
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- P13489
- Gene
- RNH1
- Ensembl
- ENSG00000023191
- Chromosome
- 11
- Canonical length
- 461 aa
- Protein class
- Plasma proteins, Predicted intracellular proteins
- Subcellular location
- Nucleoplasm,Cytosol
OverviewNCBI Gene
Placental ribonuclease inhibitor (PRI) is a member of a family of proteinaceous cytoplasmic RNase inhibitors that occur in many tissues and bind to both intracellular and extracellular RNases (summarized by Lee et al., 1988 [PubMed 3219362]). In addition to control of intracellular RNases, the inhibitor may have a role in the regulation of angiogenin (MIM 105850). Ribonuclease inhibitor, of 50,000 Da, binds to ribonucleases and holds them in a latent form. Since neutral and alkaline ribonucleases probably play a critical role in the turnover of RNA in eukaryotic cells, RNH may be essential for control of mRNA turnover; the interaction of eukaryotic cells with ribonuclease may be reversible in vivo.[supplied by OMIM, Jul 2010]
Canonical amino-acid sequenceUniProt
461 residues, UniProt reviewed canonical sequence.
>P13489|RNH1
1 MSLDIQSLDI QCEELSDARW AELLPLLQQC QVVRLDDCGL TEARCKDISS ALRVNPALAE
61 LNLRSNELGD VGVHCVLQGL QTPSCKIQKL SLQNCCLTGA GCGVLSSTLR TLPTLQELHL
121 SDNLLGDAGL QLLCEGLLDP QCRLEKLQLE YCSLSAASCE PLASVLRAKP DFKELTVSNN
181 DINEAGVRVL CQGLKDSPCQ LEALKLESCG VTSDNCRDLC GIVASKASLR ELALGSNKLG
241 DVGMAELCPG LLHPSSRLRT LWIWECGITA KGCGDLCRVL RAKESLKELS LAGNELGDEG
301 ARLLCETLLE PGCQLESLWV KSCSFTAACC SHFSSVLAQN RFLLELQISN NRLEDAGVRE
361 LCQGLGQPGS VLRVLWLADC DVSDSSCSSL AATLLANHSL RELDLSNNCL GDAGILQLVE
421 SVRQPGCLLE QLVLYDIYWS EEMEDRLQAL EKDKPSLRVI SLocalizationUniProt · AlphaFold · HPA
Whether an antibody against RNH1 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)
- 0.21
- Highest tissue expression
- 247 nTPM
Expression across tissuesHPA
Tissue
- skin: 247 nTPM
- esophagus: 207 nTPM
- heart muscle: 189 nTPM
- blood vessel: 177 nTPM
- cervix: 155 nTPM
- adipose tissue: 155 nTPM
Single-cell type
- esophageal apical cells: 303 nCPM
- decidual stromal cells: 291 nCPM
- suprabasal keratinocytes: 217 nCPM
- esophageal suprabasal cells: 206 nCPM
- syncytiotrophoblasts: 186 nCPM
- hofbauer cells: 181 nCPM
Immune cell
- non-classical monocyte: 301 nTPM
- intermediate monocyte: 299 nTPM
- myeloid DC: 262 nTPM
- classical monocyte: 246 nTPM
- total PBMC: 236 nTPM
- plasmacytoid DC: 72 nTPM
Brain region
- medulla oblongata: 94 nTPM
- white matter: 90 nTPM
- cerebellum: 80 nTPM
- basal ganglia: 77 nTPM
- midbrain: 74 nTPM
- thalamus: 70 nTPM
DiseaseUniProt · ClinVar · IEDB · PubMed
Four sources answering four different questions about RNH1.
Disease | AllUniProt
Conditions RNH1 is implicated in, by any mechanism.
- Encephalitis, acute, infection-induced, 12 (IIAE12) MIM:620461
Disease | ImmuneIEDB
Conditions an epitope on RNH1 was assayed in.
- 1-chloro-2 T cell
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)
- 1.22
- gnomAD pLI
- 0
- gnomAD missense Z
- -0.09
- DepMap mean gene effect
- -0.02
- DepMap dependency class
- selective
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 4% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).
OntologyGO
Biological processes
- cell migration
- mRNA catabolic process
- regulation of angiogenesis
- regulation of Arp2/3 complex-mediated actin nucleation
- tRNA stabilization
Molecular functions
Cellular components
Protein domainsUniProt · Pfam · InterPro
- Leucine-rich repeat
- Leucine-rich repeat, cysteine-containing subtype
- Leucine-rich repeat domain superfamily
- NLRP family, innate immunity and inflammation regulators
- Leucine Rich repeat
- Ribonuclease inhibitor, leucine rich repeat cap
- Capping Ribonuclease inhibitor Leucine Rich Repeat
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of RNH1 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 RNH1 as an antibody target. Whether an autoantibody or antibody against RNH1 could matter depends on whether native RNH1 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
RNH1 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 RNH1 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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