Gene
KIF1A
kinesin family member 1A
- HGNC 888↗(opens in a new tab)
- Ensembl gene ENSG00000130294↗(opens in a new tab)
- NCBI Gene 547↗(opens in a new tab)
Summary
- Cytogenetic location
- 2q37.3
- Coordinates
- Chromosome 2: 240,713,767–240,820,219 (GRCh38)
- Exons
- 49 exons across 106.5 kb
- Protein
- 1,791 amino acids
- Also known as
- UNC104
- Previous symbols
- ATSV, C2orf20, SPG30
- MANE Select transcript
- ENST00000498729.9NM_001244008.2
- Locus type
- gene with protein product
- Very high
- Confident
- Low
- Very low
Reference genomeGRCh38hg38
Positions on gene and variant pages follow this choice, in this browser.
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Get my Genome TestCurated reports relevant to this gene
Hereditary Sensory and Autonomic Neuropathies (incl. Familial Dysautonomia)
- Hereditary Sensory and Autonomic Neuropathy
A group of neuropathies, including familial dysautonomia (ELP1), HSAN1 (SPTLC1/SPTLC2), HSAN2 (WNK1, RETREG1) and congenital insensitivity to pain (NTRK1, SCN9A, PRDM12), most of which are recessive while HSAN1 is dominant.
- 3 GenCC submitters rate it definitive or strong
What knowing changes
Protection against unnoticed injuries, burns and infections, management of autonomic symptoms, and carrier testing for relatives (familial dysautonomia is included in Ashkenazi Jewish carrier screening).
Broader groupings
Hereditary Spastic Paraplegia
- Hereditary Spastic Paraplegia (All Types)
One of 66 genes linked to it
Umbrella term covering all hereditary spastic paraplegias, including SPG4 (SPAST), the most common dominant form, and SPG5A, SPG6, SPG10, SPG18, SPG30 and SPG31.
- 3 GenCC submitters rate it definitive or strong
Intellectual Disability
One of 233 genes linked to it
- ClinGen rates the link definitive
- 4 GenCC submitters rate it definitive or strong
How KIF1A is laid out
- Coding sequence
- Untranslated region
- Intron
- Direction of transcription
- Known disease-causing sites
- Stretches short reads find hard
Exons of the gene's MANE Select transcript (release v1.5), from NCBI and EMBL-EBI, on the GRCh38 reference genome.
Chromosome bands from UCSC's GRCh38 ideogram (2022-10-29).
Nearby genes from Ensembl release 116, on GRCh38.
Exons make up 9.1 kb of the gene's 106.5 kb; 5,376 of those bases code for the protein.
How a genome test reads KIF1A
156
positions in KIF1A where ClinVar classes a change as pathogenic or likely pathogenic
None of them falls in a region short reads find hard.
A whole genome covers all 106.5 kb of KIF1A, introns included, not only the 9.1 kb of exons.
Genes linked to the same conditions
- ATL1atlastin GTPase 1Shares 2 conditions
- TECPR2tectonin beta-propeller repeat containing 2Shares 2 conditions
- ABCD1ATP binding cassette subfamily D member 1Shares 1 condition
- ABHD16Aabhydrolase domain containing 16A, phospholipaseShares 1 condition
- ACSL4acyl-CoA synthetase long chain family member 4Shares 1 condition
- ADKadenosine kinaseShares 1 condition
- ADNPactivity dependent neuroprotector homeoboxShares 1 condition
- AFF2ALF transcription elongation factor 2Shares 1 condition
- AHDC1AT-hook DNA binding motif containing 1Shares 1 condition
- AIFM1apoptosis inducing factor mitochondria associated 1Shares 1 condition
- ALDH18A1aldehyde dehydrogenase 18 family member A1Shares 1 condition
- ALKBH8alkB homolog 8, tRNA methyltransferaseShares 1 condition
Traits linked to KIF1A
The Human Phenotype Ontology lists these as features of the rare conditions KIF1A can cause. Each trait's page lists the other genes linked to it.
Abnormality of the nervous system
- Abnormal gait
- Babinski sign
- Cerebellar vermis atrophy
- Global developmental delay
- Intellectual disability
- Overactive lower leg reflex
- Impaired distal vibration sensation
- Impaired pain sensation
Show 24 more traits
- Unsteady walk
- Ataxia
- Decreased sensation in extremities
- Degeneration of cerebellum
- Degeneration of cerebrum
- Delayed speech and language development
- Distal peripheral sensory neuropathy
- Impaired distal proprioception
- Lack of coordination of movement
- Nerve damage causing decreased feeling and movement
- Numbness
- Peripheral axonal neuropathy
- Somatic sensory dysfunction
- Absent speech development
- Diffuse cerebellar atrophy
- Epilepsy
- Inability to walk
- Absent reflexes
- Decreased nerve conduction velocity
- Decreased number of peripheral myelinated nerve fibers
- Decreased reflex response
- Decreased sensory nerve conduction velocity
- Increased reflexes
- Peripheral neuropathy
Abnormality of the musculoskeletal system
- Appendicular spasticity
- Difficulty running
- Involuntary muscle stiffness, contraction, or spasm
- Low muscle tone in trunk
- Lower limb spasticity
- Abnormal cortical bone morphology
- Abnormal shape of end part of bone
- Abnormality of the hip bone
Show 15 more traits
- Breakdown of bone
- Distal muscle wasting
- Low solidness and mass of the bones
- Muscle degeneration
- Muscle weakness
- Progressive spastic paraplegia
- Prominent swayback
- Spastic walk
- Lower limb amyotrophy
- Scissor gait
- Flexed joint that cannot be straightened
- Generalized decreased muscle tone
- Low muscle tone
- Painless fractures due to injury
- Spastic paraplegia
External links
Gene records
Transcript
Protein
Where this comes from
- HGNC: the gene's symbol, name, other symbols and location.
- MANE Select v1.5, from NCBI and EMBL-EBI: the transcript, its exons and coding sequence.
- GenCC and ClinGen, released 2026-10-16: which conditions the gene is linked to, and how strongly.
- The ACMG secondary findings list, SF v3.2.
- ClinVar and the GIAB stratifications: known disease-causing sites, and the regions short reads find hard.
- The Human Phenotype Ontology, release 2026-09-01: the traits linked to the gene. Find out more at hpo.jax.org.
- Data release 2026.10.16-c6eea6bf.
Cite this page
Dante Labs. (n.d.). KIF1A gene: kinesin family member 1A. Retrieved 17 October 2026, from https://dantelabs.com/genes/kif1a
Dante Labs. KIF1A gene: kinesin family member 1A [Internet]. [cited 17 October 2026]. Available from: https://dantelabs.com/genes/kif1a
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