CYTH2
protein-codingcytohesin 2, the group of Pleckstrin homology domain containing|Cytohesins
Gene summary
The protein encoded by this gene is a member of the PSCD family. Members of this family have identical structural organization that consists of an N-terminal coiled-coil motif, a central Sec7 domain, and a C-terminal pleckstrin homology (PH) domain. The coiled-coil motif is involved in homodimerization, the Sec7 domain contains guanine-nucleotide exchange protein (GEP) activity, and the PH domain interacts with phospholipids and is responsible for association of PSCDs with membranes. Members of this family appear to mediate the regulation of protein sorting and membrane trafficking. The encoded protein exhibits GEP activity in vitro with ARF1, ARF3, and ARF6 and is 83% homologous to CYTH1. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Aug 2008]
- PSCD2L
- PSCD2
MANE transcript
Inheritance
ClinVar variants
Top phenotype
gnomAD constraint
Max pathogenic AF
Genomic locus
External References & Databases
Transcript & Mutation Effects
hg38 • Region Span ~13.1 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 CYTH2 variants in ClinVar
ClinVar Variants & Pathogenicity by Type
Statistics based on transcript NM_004228.7. 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 | 2 | ||||
| missense | 34 | 34 | ||||
| nonsense | 0 | |||||
| start loss | 0 | |||||
| frameshift | 0 | |||||
| splice donor/acceptor (+/-2bp) | 3 | 3 | ||||
| Total | 0 | 0 | 39 | 0 | 0 | 39 |
Transcript Catalog
Annotated transcript isoforms across RefSeq and Ensembl databases
| Transcript ID | Source | Protein ID | Coding Exons | MANE Status |
|---|---|---|---|---|
| RefSeq | NP_004219.3 | 12 | MANE Select | |
| Ensembl | ENSP00000408236.2 | 12 | MANE Select | |
| RefSeq | NP_059431.1 | 13 | Standard | |
| Ensembl | ENSP00000314566.5 | 7 | Standard |
Gene Ontology (GO) Annotations & Pathways
Biological processes, molecular functions, cellular components and pathways
Pathways ConsensusPathDB
- Endocytosis - Homo sapiens (human)
- Phospholipase D signaling pathway - Homo sapiens (human)
- Vesicle-mediated transport
- thrombin signaling and protease-activated receptors
- Membrane Trafficking
Biological Process
- endocytosis
- actin cytoskeleton organization
- regulation of ARF protein signal transduction
Molecular Function
- ARF guanyl-nucleotide exchange factor activity
- protein binding
- lipid binding
- inositol 1,4,5 trisphosphate binding
Cellular Component
- Golgi membrane
- cytoplasm
- cytosol
- plasma membrane
- adherens junction
gnomAD Constraint
Source:
- Gene type
- protein_coding
- Transcript type
- protein_coding
- Transcript
- ENST00000452733
- Coding exons
- 12
- Length
- 13283
- Individuals with no LoFs
- 125734
- Homozygous LoFs
- 0
- Heterozygous LoFs
- 14
- Defined
- 125748
- p
- 0.0000557
| Z-Score | Observed | Expected | Observed/Expected | Mutation Rate | Total Possible | |
|---|---|---|---|---|---|---|
| Missense | 2.15 | 160 | 257 | 0.622 | 0.0000169 | 2623 |
| Missense (PolyPhen) | 23 | 65.233 | 0.35258 | 714 | ||
| Synonymous | -0.420 | 110 | 105 | 1.05 | 0.00000672 | 756 |
| Loss of Function | 3.54 | 6 | 25.1 | 0.239 | 0.00000150 | 258 |
Population LoF Frequency
| Population | CAF | p-value | Status |
|---|---|---|---|
| African | 0.00012 | 0.00012 | rare |
| Latino/Admixed American | 0.000029 | 0.000029 | rare |
| Ashkenazi Jewish | 0 | 0.0 | absent |
| East Asian | 0.000054 | 0.000054 | rare |
| Finnish | 0 | 0.0 | absent |
| European (Non-Finnish) | 0.000090 | 0.000088 | rare |
| South Asian | 0 | 0.0 | absent |
| Other | 0 | 0.0 | absent |
dbNSFP Gene Annotations
Source:
- Function
- FUNCTION: Acts as a guanine-nucleotide exchange factor (GEF). Promotes guanine-nucleotide exchange on ARF1, ARF3 and ARF6. Activates ARF factors through replacement of GDP with GTP (By similarity). The cell membrane form, in association with ARL4 proteins, recruits ARF6 to the plasma membrane (PubMed:17398095). Involved in neurite growth (By similarity). {ECO:0000250|UniProtKB:P63034, ECO:0000269|PubMed:17398095}.;
Recessive Scores
- pRec
- 0.155
Intolerance Scores
- LoFtool
- 0.318
- RVIS EVS
- -0.65
- RVIS percentile EVS
- 16.36
Essentials
- Essential (CRISPR)
- N
- Essential (CRISPR2)
- N
- Essential (gene trap)
- N
- Indispensability pred.
- E
- Indispensability score
- 0.968
Gene Damage Prediction
| All | Recessive | Dominant | |
|---|---|---|---|
| Mendelian | Medium | Medium | Medium |
| Primary Immunodeficiency | Medium | Medium | Medium |
| Cancer | Medium | Medium | Medium |