FYTTD1
protein-codingforty-two-three domain containing 1, the group of Transcription and export complex 1 subunits
Gene summary
Enables mRNA binding activity. Involved in mRNA export from nucleus. Located in nuclear speck. [provided by Alliance of Genome Resources, Jun 2026]
MANE transcript
Inheritance
ClinVar variants
Top phenotype
gnomAD constraint
Max pathogenic AF
Genomic locus
External References & Databases
Transcript & Mutation Effects
hg38 • Region Span ~50.4 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 FYTTD1 variants in ClinVar
ClinVar Variants & Pathogenicity by Type
Statistics based on transcript NM_032288.7. 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 | 2 | 1 | 3 | |||
| missense | 52 | 52 | ||||
| nonsense | 0 | |||||
| start loss | 0 | |||||
| frameshift | 0 | |||||
| splice donor/acceptor (+/-2bp) | 3 | 3 | ||||
| Total | 0 | 0 | 57 | 1 | 0 | 58 |
Transcript Catalog
Annotated transcript isoforms across RefSeq and Ensembl databases
| Transcript ID | Source | Protein ID | Coding Exons | MANE Status |
|---|---|---|---|---|
| RefSeq | NP_115664.2 | 9 | MANE Select | |
| Ensembl | ENSP00000241502.3 | 9 | MANE Select | |
| RefSeq | NP_001011537.2 | 9 | Standard | |
| Ensembl | ENSP00000409257.1 | 3 | Standard |
Gene Ontology (GO) Annotations & Pathways
Biological processes, molecular functions, cellular components and pathways
Pathways ConsensusPathDB
- Gene expression (Transcription)
- RNA Polymerase II Transcription
- Metabolism of RNA
- Cleavage of Growing Transcript in the Termination Region
- RNA Polymerase II Transcription Termination
Biological Process
- mRNA export from nucleus
Molecular Function
- RNA binding
- mRNA binding
- protein binding
Cellular Component
- nucleoplasm
- nuclear speck
gnomAD Constraint
Source:
- Gene type
- protein_coding
- Transcript type
- protein_coding
- Transcript
- ENST00000241502
- Coding exons
- 9
- Length
- 50418
- Individuals with no LoFs
- 125741
- Homozygous LoFs
- 0
- Heterozygous LoFs
- 6
- Defined
- 125747
- p
- 0.0000239
| Z-Score | Observed | Expected | Observed/Expected | Mutation Rate | Total Possible | |
|---|---|---|---|---|---|---|
| Missense | 0.608 | 152 | 175 | 0.870 | 0.00000974 | 2049 |
| Missense (PolyPhen) | 52 | 72.42 | 0.71803 | 794 | ||
| Synonymous | 0.855 | 53 | 61.5 | 0.861 | 0.00000317 | 628 |
| Loss of Function | 3.06 | 4 | 18.1 | 0.222 | 0.00000108 | 202 |
Population LoF Frequency
| Population | CAF | p-value | Status |
|---|---|---|---|
| African | 0 | 0.0 | absent |
| Latino/Admixed American | 0.000059 | 0.000058 | rare |
| Ashkenazi Jewish | 0.00010 | 0.000099 | rare |
| East Asian | 0.000054 | 0.000054 | rare |
| Finnish | 0 | 0.0 | absent |
| European (Non-Finnish) | 0.000010 | 0.0000088 | rare |
| South Asian | 0 | 0.0 | absent |
| Other | 0.00017 | 0.00016 | rare |
dbNSFP Gene Annotations
Source:
- Function
- FUNCTION: Required for mRNA export from the nucleus to the cytoplasm. Acts as an adapter that uses the DDX39B/UAP56-NFX1 pathway to ensure efficient mRNA export and delivering to the nuclear pore. Associates with spliced and unspliced mRNAs simultaneously with ALYREF/THOC4. {ECO:0000269|PubMed:19836239}.;
Recessive Scores
- pRec
- 0.104
Intolerance Scores
- LoFtool
- 0.465
- RVIS EVS
- 0.04
- RVIS percentile EVS
- 56.92
Essentials
- Essential (CRISPR)
- N
- Essential (CRISPR2)
- N
- Essential (gene trap)
- N
- Indispensability pred.
- N
- Indispensability score
- 0.281
Gene Damage Prediction
| All | Recessive | Dominant | |
|---|---|---|---|
| Mendelian | Medium | Medium | Medium |
| Primary Immunodeficiency | Medium | Medium | Medium |
| Cancer | Medium | Medium | Medium |