SPAST - spastin Gene
Also Known as FSP2; SPG4; ADPSP
Species: Homo sapiens
About SPAST
This gene has 20 transcripts (splice variants), 236 orthologues, 9 paralogues and is associated with 4 phenotypes. Ubiquitous expression in brain (RPKM 7.7), testis (RPKM 5.2) and 25 other tissues.
Summary
This gene encodes a member of the AAA (ATPases associated with a variety of cellular activities) protein family. Members of this protein family share an ATPase domain and have roles in diverse cellular processes including membrane trafficking, intracellular motility, organelle biogenesis, protein folding, and proteolysis. The use of alternative translational initiation sites in this gene results in a single transcript variant that can produce isoforms that differ in the length of their N-terminus and which thereby differ in the efficiency of their export from the nucleus to the cytoplasm. In addition, alternative splicing results in multiple transcript variants that encode isoforms that differ in Other protein regions as well. One isoform of this gene has been shown to be a microtubule-severing enzyme that regulates microtubule abundance, mobility, and plus-end distribution. Mutations in this gene cause the most frequent form of autosomal dominant spastic paraplegia 4. [provided by RefSeq, May 2018]
SPAST Products (5)
| mRNA | Protein | Name |
|---|---|---|
| NM_001363823.2 | NP_001350752.1 | spastin isoform 3 |
| NM_001363875.2 | NP_001350804.1 | spastin isoform 4 |
| NM_001377959.1 | NP_001364888.1 | spastin isoform 5 |
| NM_014946.4 | NP_055761.2 | spastin isoform 1 |
| NM_199436.2 | NP_955468.1 | spastin isoform 2 |
| Molecular Function GO Annotation | Evidence | References | Source |
|---|---|---|---|
| enables alpha-tubulin binding |
IPI
IPI: Inferred from physical interaction
|
17389232 | GOA |
| enables beta-tubulin binding |
IDA
IDA: Inferred from direct assay
|
26875866 | GOA |
| enables beta-tubulin binding |
IPI
IPI: Inferred from physical interaction
|
17389232 | GOA |
| enables microtubule binding |
IDA
IDA: Inferred from direct assay
|
15716377 | GOA |
| enables microtubule severing ATPase activity |
IDA
IDA: Inferred from direct assay
|
15716377 | GOA |
| enables protein binding |
IPI
IPI: Inferred from physical interaction
|
16815977 | GOA |
| Cellular Component GO Annotation | Evidence | References | Source |
|---|---|---|---|
| located in axon |
IDA
IDA: Inferred from direct assay
|
15269182 | GOA |
| located in centrosome |
IDA
IDA: Inferred from direct assay
|
25390646 | GOA |
| located in cytoplasm |
IDA
IDA: Inferred from direct assay
|
16026783 | GOA |
| located in cytoplasmic vesicle |
IDA
IDA: Inferred from direct assay
|
21545838 | GOA |
| colocalizes with endoplasmic reticulum |
IDA
IDA: Inferred from direct assay
|
19000169 | GOA |
| located in endoplasmic reticulum tubular network |
IDA
IDA: Inferred from direct assay
|
23969831 | GOA |
| colocalizes with endosome |
IDA
IDA: Inferred from direct assay
|
19000169 | GOA |
| colocalizes with microtubule cytoskeleton |
IDA
IDA: Inferred from direct assay
|
15716377 | GOA |
| colocalizes with midbody |
IDA
IDA: Inferred from direct assay
|
19000169 | GOA |
| located in midbody |
IDA
IDA: Inferred from direct assay
|
15269182 | GOA |
| located in midbody |
IMP
IMP: Inferred from mutant phenotype
|
18997780 | GOA |
| located in nuclear membrane |
IDA
IDA: Inferred from direct assay
|
26040712 | GOA |
| located in nuclear membrane |
IMP
IMP: Inferred from mutant phenotype
|
26040712 | GOA |
| located in nucleus |
IDA
IDA: Inferred from direct assay
|
15147984 | GOA |
| located in perinuclear region of cytoplasm |
IDA
IDA: Inferred from direct assay
|
15147984 | GOA |
| located in spindle pole |
IDA
IDA: Inferred from direct assay
|
15269182 | GOA |
SPAST Protein Structure
MIT: MIT (microtubule interacting and transport) domain (120 - 195)
AAA: ATPase family associated with various cellular activities (AAA) (378 - 507)
- 0
- 100
- 200
- 300
- 400
- 500
- 616 a.a.
| Protein Preferred Names | Protein Names | |
|---|---|---|
|
spastin |
|
SPAST Protein-protein interaction Information
|
Type
|
Protein Name | Protein ID | Interactor | Interactor Species | Interactor ID | Detection Method | References |
|---|---|---|---|---|---|---|---|
|
Intra
|
SPAST | Q9UBP0 | ATL1 | Homo sapiens | Q8WXF7-1 | 16815977 | |
|
Intra
|
SPAST | Q9UBP0 | ATL1 | Homo sapiens | Q8WXF7-1 | 16815977 | |
|
Intra
|
SPAST | Q9UBP0 | ATL1 | Homo sapiens | Q8WXF7-1 | 16815977 | |
|
Intra
|
SPAST | Q9UBP0 | FBXL17 | Homo sapiens | Q9UF56 | 35869491 | |
|
Intra
|
SPAST | Q9UBP0 | FBXL17 | Homo sapiens | Q9UF56 | 35869491 |
Related Diseases
| Diseases | Alias | |
|---|---|---|
| Spastic Paraplegia 4, Autosomal Dominant |
|
|
| Hereditary Spastic Paraplegia |
|
|
| Spastic Paraparesis |
|
|
| Spasticity |
|
|
| Spastic Diplegia |
|
|
| Cerebral Palsy |
|
|
| Spastic Paraplegia 4 |
|
|
| Paraplegia |
|
|
| Spastic Paraplegia 3, Autosomal Dominant |
|
|
| Masa Syndrome |
|
|
| Spastic Paraplegia 13, Autosomal Dominant |
|
|
| Spastic Paraplegia 42, Autosomal Dominant |
|
|
| Spastic Paraplegia 43, Autosomal Recessive |
|
|
| Dementia |
|
|
| Spastic Paraplegia 20, Autosomal Recessive |
|
|
| Spastic Paraplegia 78, Autosomal Recessive |
|
|
| Spastic Paraplegia 2, X-Linked |
|
|
| Spastic Paraplegia 14, Autosomal Recessive |
|
|
| Hereditary Spastic Paraplegia 30 |
|
|
| Spastic Paraplegia 79, Autosomal Recessive |
|
|
| Spastic Paraplegia 41, Autosomal Dominant |
|
|
| Spastic Paraplegia 31, Autosomal Dominant |
|
|
| Spastic Paraplegia 80, Autosomal Dominant |
|
|
| Spastic Paraplegia 15, Autosomal Recessive |
|
|
| Spastic Paraplegia 55, Autosomal Recessive |
|
|
| Spastic Paraplegia 34, X-Linked |
|
|
| Spastic Paraplegia 48, Autosomal Recessive |
|
|
| Spastic Paraplegia 10, Autosomal Dominant |
|
|
| Spastic Paraplegia 11, Autosomal Recessive |
|
|
| Spastic Paraplegia 73, Autosomal Dominant |
|
|
| Spastic Paraplegia 54, Autosomal Recessive |
|
|
| Spastic Paraplegia 12, Autosomal Dominant |
|
|
| Epilepsy |
|
|
| Hereditary Spastic Paraplegia 35 |
|
|
| Spastic Paraplegia 26, Autosomal Recessive |
|
|
| Spastic Paraplegia 61, Autosomal Recessive |
|
|
| Spastic Paraplegia 18, Autosomal Recessive |
|
|
| Spastic Paraplegia 52, Autosomal Recessive |
|
|
| Spastic Paraplegia 8, Autosomal Dominant |
|
|
| Progressive External Ophthalmoplegia With Mitochondrial Dna Deletions, Autosomal Dominant 1 |
|
|
| Spastic Paraplegia 19, Autosomal Dominant |
|
|
| Spastic Paraplegia 17, Autosomal Dominant |
|
|
| Spastic Paraplegia 53, Autosomal Recessive |
|
|
| Spastic Paraplegia 57, Autosomal Recessive |
|
|
| Neuronopathy, Distal Hereditary Motor, Type Va |
|
|
| Hereditary Spastic Paraplegia 49 |
|
|
| Spastic Paraplegia 75, Autosomal Recessive |
|
|
| Spastic Paraplegia 6, Autosomal Dominant |
|
|
| Spastic Paraplegia 62, Autosomal Recessive |
|
|
| Neuropathy, Hereditary Sensory, Type Id |
|
|
| Myasthenic Syndrome, Congenital, 4c, Associated With Acetylcholine Receptor Deficiency |
|
|
| Spastic Paraplegia 45, Autosomal Recessive |
|
|
| Friedreich Ataxia |
|
|
| Motor Peripheral Neuropathy |
|
|
| Spastic Cerebral Palsy |
|
|
| Spastic Paraplegia 9a, Autosomal Dominant |
|
|
| Spastic Paraplegia 50, Autosomal Recessive |
|
|
| Pontocerebellar Hypoplasia, Type 2e |
|
|
| Neurogenic Bowel |
|
|
| Motor Neuron Disease |
|
|
| Amyotrophic Lateral Sclerosis 1 |
|
|
| Charcot-Marie-Tooth Disease, Axonal, Type 2e |
|
|
| Spastic Ataxia |
|
|
| Peroxisomal Biogenesis Disorder |
|
|
| Cerebellar Disease |
|
|
| Zellweger Syndrome |
|
|
| Autosomal Dominant Cerebellar Ataxia |
|
|
| Charcot-Marie-Tooth Disease |
|
|
| Peripheral Nervous System Disease |
|
|
| Nervous System Disease |
|
|
Orthologs Information
| Species | Symbol | Source | ID |
|---|---|---|---|
| Mus musculus | SPAST | MGD | MGI:1858896 |
| Felis catus | SPAST | VGNC | VGNC:65603 |
| Bos taurus | SPAST | VGNC | VGNC:35174 |
| Macaca mulatta | SPAST | VGNC | VGNC:77857 |
| Rattus norvegicus | SPAST | RGD | RGD:1308494 |
| Canis familiaris | SPAST | VGNC | VGNC:46703 |
| Others | SPAST | NCBI |