TRNAU1AP

protein-coding

tRNA selenocysteine 1 associated protein 1, the group of RNA binding motif containing

Gene summary

Enables RNA binding activity. Predicted to be involved in selenocysteine incorporation. Located in cytoplasm. [provided by Alliance of Genome Resources, Jun 2026]

Previous symbols:
  • TRSPAP1

MANE transcript

NM_017846.5

Inheritance

—

ClinVar variants

U:41

Top phenotype

—

gnomAD constraint

pLI —, LoF o/e 0.47

Max pathogenic AF

—

Genomic locus

chr1:28,553,085-28,578,545

External References & Databases

Transcript & Mutation Effects

hg38 • Region Span ~25.5 kb
Loading mutation effect viewer...

GenCC Phenotypes & Disease Associations

Curated gene-disease validity assertions and inheritance patterns

No GenCC data available for this gene.

ClinVar Associated Diseases & Phenotypes

Reported disease conditions connected to TRNAU1AP variants in ClinVar

1 Conditions Cataloged
not specifiedTotal: 38

ClinVar Variants & Pathogenicity by Type

Statistics based on transcript NM_017846.5. Only rare variants are included.

We include only reliable ClinVar variants with their consequences to MANE Select, MANE Plus Clinical transcripts, or transcripts with TSL equal to 1. Click a count to filter the variants table below.

Slight differences between displayed counts and ClinVar may occur due to a different transcript/consequence chosen by our variant effect predictor, or because we classify Benign/Likely benign as Likely benign and Pathogenic/Likely pathogenic as Likely pathogenic.

EffectPLPVUSLBBSum
synonymous
2
clinvar
2
missense
38
clinvar
38
nonsense
0
start loss
0
frameshift
0
splice donor/acceptor (+/-2bp)
1
clinvar
1
Total00410041
Loading ClinVar variants...

Transcript Catalog

Annotated transcript isoforms across RefSeq and Ensembl databases

Showing 4 of 30 transcripts
Transcript IDSourceProtein IDCoding ExonsMANE Status
NM_017846.5RefSeqNP_060316.19MANE Select
ENST00000373830.4EnsemblENSP00000362936.39MANE Select
ENST00000870778.1EnsemblENSP00000540837.18Standard
ENST00000870778.2EnsemblENSP00000540837.18Standard

Gene Ontology (GO) Annotations & Pathways

Biological processes, molecular functions, cellular components and pathways

Pathways ConsensusPathDB

  • Selenium Metabolism and Selenoproteins

Biological Process

  • selenocysteine incorporation

Molecular Function

  • RNA binding

Cellular Component

  • nucleus
  • cytoplasm

gnomAD Constraint

Source: gnomAD

Gene type
protein_coding
Transcript type
protein_coding
Transcript
ENST00000373830
Coding exons
9
Length
25455
Individuals with no LoFs
125734
Homozygous LoFs
0
Heterozygous LoFs
14
Defined
125748
p
0.0000557
Z-ScoreObservedExpectedObserved/ExpectedMutation RateTotal Possible
Missense1.671051660.6340.000008661889
Missense (PolyPhen)2239.7750.55311506
Synonymous-0.5556761.51.090.00000337509
Loss of Function2.13919.00.4739.96e-7216

Population LoF Frequency

PopulationCAFp-valueStatus
African0.0000620.000062rare
Latino/Admixed American0.0000580.000058rare
Ashkenazi Jewish00.0absent
East Asian00.0absent
Finnish0.0000930.000092rare
European (Non-Finnish)0.0000620.000062rare
South Asian0.0000330.000033rare
Other0.000160.00016rare

dbNSFP Gene Annotations

Source: dbNSFP

Function
FUNCTION: Involved in the early steps of selenocysteine biosynthesis and tRNA(Sec) charging to the later steps resulting in the cotranslational incorporation of selenocysteine into selenoproteins. Stabilizes the SECISBP2, EEFSEC and tRNA(Sec) complex. May be involved in the methylation of tRNA(Sec). Enhances efficiency of selenoproteins synthesis (By similarity). {ECO:0000250, ECO:0000269|PubMed:16508009}.;

Recessive Scores

pRec
0.0824

Intolerance Scores

LoFtool
0.347
RVIS EVS
-0.23
RVIS percentile EVS
37.11

Essentials

Essential (CRISPR)
E
Essential (CRISPR2)
E
Essential (gene trap)
E
Indispensability pred.
N
Indispensability score
0.438

Gene Damage Prediction

AllRecessiveDominant
MendelianMediumMediumMedium
Primary ImmunodeficiencyMediumMediumMedium
CancerMediumMediumMedium
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