Seroatlas · Human Serome Atlas

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 S

LocalizationUniProt · 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.

Disease | ImmuneIEDB

Conditions an epitope on RNH1 was assayed in.

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

Molecular functions

Cellular components

Protein domainsUniProt · Pfam · InterPro

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.

Canonical record: https://seroatlas.com/gene/RNH1. 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).

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