GAR1
protein-codingGAR1 ribonucleoprotein, the group of H/ACA ribonucleoprotein complex
Gene summary
This gene is a member of the H/ACA snoRNPs (small nucleolar ribonucleoproteins) gene family. snoRNPs are involved in various aspects of rRNA processing and modification and have been classified into two families: C/D and H/ACA. The H/ACA snoRNPs also include the DKC1, NOLA2 and NOLA3 proteins. These four H/ACA snoRNP proteins localize to the dense fibrillar components of nucleoli and to coiled (Cajal) bodies in the nucleus. Both 18S rRNA production and rRNA pseudouridylation are impaired if any one of the four proteins is depleted. These four H/ACA snoRNP proteins are also components of the telomerase complex. The encoded protein of this gene contains two glycine- and arginine-rich domains and is related to Saccharomyces cerevisiae Gar1p. Two splice variants have been found for this gene. [provided by RefSeq, Jul 2008]
- NOLA1
MANE transcript
Inheritance
ClinVar variants
Top phenotype
gnomAD constraint
Max pathogenic AF
Genomic locus
External References & Databases
Transcript & Mutation Effects
hg38 • Region Span ~9.2 kbGenCC 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 GAR1 variants in ClinVar
ClinVar Variants & Pathogenicity by Type
Statistics based on transcript NM_018983.4. 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.
| Effect | PathogenicP | Likely pathogenicLP | VUS | Likely benignLB | BenignB | Sum |
|---|---|---|---|---|---|---|
| synonymous | 1 | 1 | ||||
| missense | 24 | 1 | 25 | |||
| nonsense | 0 | |||||
| start loss | 0 | |||||
| frameshift | 0 | |||||
| splice donor/acceptor (+/-2bp) | 2 | 2 | ||||
| Total | 0 | 0 | 27 | 1 | 0 | 28 |
Transcript Catalog
Annotated transcript isoforms across RefSeq and Ensembl databases
| Transcript ID | Source | Protein ID | Coding Exons | MANE Status |
|---|---|---|---|---|
| RefSeq | NP_061856.1 | 6 | MANE Select | |
| Ensembl | ENSP00000226796.6 | 6 | MANE Select | |
| RefSeq | NP_127460.1 | 6 | Standard | |
| Ensembl | ENSP00000378127.3 | 6 | Standard |
Gene Ontology (GO) Annotations & Pathways
Biological processes, molecular functions, cellular components and pathways
Pathways ConsensusPathDB
- Ribosome biogenesis in eukaryotes - Homo sapiens (human)
- rRNA processing
- Metabolism of RNA
- rRNA modification in the nucleus and cytosol
- rRNA processing in the nucleus and cytosol
Biological Process
- snoRNA guided rRNA pseudouridine synthesis
- telomere maintenance via telomerase
Molecular Function
- RNA binding
- protein binding
- box H/ACA snoRNA binding
- telomerase RNA binding
Cellular Component
- nuclear chromosome, telomeric region
- fibrillar center
- nucleus
- nucleoplasm
- telomerase holoenzyme complex
gnomAD Constraint
Source:
- Gene type
- protein_coding
- Transcript type
- protein_coding
- Transcript
- ENST00000226796
- Coding exons
- 6
- Length
- 9228
- Individuals with no LoFs
- 125717
- Homozygous LoFs
- 0
- Heterozygous LoFs
- 5
- Defined
- 125722
- p
- 0.0000199
| Z-Score | Observed | Expected | Observed/Expected | Mutation Rate | Total Possible | |
|---|---|---|---|---|---|---|
| Missense | 0.232 | 110 | 117 | 0.940 | 0.00000533 | 1349 |
| Missense (PolyPhen) | 29 | 29.998 | 0.96673 | 409 | ||
| Synonymous | 0.402 | 36 | 39.2 | 0.918 | 0.00000171 | 460 |
| Loss of Function | 2.37 | 4 | 13.3 | 0.300 | 7.28e-7 | 153 |
Population LoF Frequency
| Population | CAF | p-value | Status |
|---|---|---|---|
| African | 0.000062 | 0.000062 | rare |
| Latino/Admixed American | 0.000030 | 0.000029 | rare |
| Ashkenazi Jewish | 0 | 0.0 | absent |
| East Asian | 0 | 0.0 | absent |
| Finnish | 0 | 0.0 | absent |
| European (Non-Finnish) | 0.000027 | 0.000026 | rare |
| South Asian | 0 | 0.0 | absent |
| Other | 0 | 0.0 | absent |
dbNSFP Gene Annotations
Source:
- Function
- FUNCTION: Required for ribosome biogenesis and telomere maintenance. Part of the H/ACA small nucleolar ribonucleoprotein (H/ACA snoRNP) complex, which catalyzes pseudouridylation of rRNA. This involves the isomerization of uridine such that the ribose is subsequently attached to C5, instead of the normal N1. Each rRNA can contain up to 100 pseudouridine ("psi") residues, which may serve to stabilize the conformation of rRNAs. May also be required for correct processing or intranuclear trafficking of TERC, the RNA component of the telomerase reverse transcriptase (TERT) holoenzyme. {ECO:0000269|PubMed:10757788, ECO:0000269|PubMed:15044956}.;
Recessive Scores
- pRec
- 0.125
Intolerance Scores
- LoFtool
- 0.255
- RVIS EVS
- 0.35
- RVIS percentile EVS
- 73.97
Essentials
- Essential (CRISPR)
- E
- Essential (CRISPR2)
- E
- Essential (gene trap)
- E
- Indispensability pred.
- N
- Indispensability score
- 0.388
Gene Damage Prediction
| All | Recessive | Dominant | |
|---|---|---|---|
| Mendelian | Medium | Medium | Medium |
| Primary Immunodeficiency | Medium | Medium | Medium |
| Cancer | Medium | Medium | Medium |