Gene
FAM149B1
family with sequence similarity 149 member B1
- HGNC 29162↗(opens in a new tab)
- Ensembl gene ENSG00000138286↗(opens in a new tab)
- NCBI Gene 317662↗(opens in a new tab)
Summary
- Cytogenetic location
- 10q22.2
- Coordinates
- Chromosome 10: 73,168,119–73,244,504 (GRCh38)
- Exons
- 14 exons across 76.4 kb
- Protein
- 582 amino acids
- Previous symbols
- KIAA0974
- MANE Select transcript
- ENST00000242505.11NM_173348.2
- 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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Joubert Syndrome And Related Disorders
- Joubert Syndrome
A ciliopathy defined by a malformation of the cerebellum and brainstem (the molar tooth sign), with low muscle tone, developmental delay and abnormal eye movements, sometimes with kidney, liver or eye involvement.
- ClinGen rates the link moderate
- 3 GenCC submitters rate it definitive or strong
How FAM149B1 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 5.5 kb of the gene's 76.4 kb; 1,749 of those bases code for the protein.
How a genome test reads FAM149B1
10
positions in FAM149B1 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 76.4 kb of FAM149B1, introns included, not only the 5.5 kb of exons.
Genes linked to the same conditions
- AHI1Abelson helper integration site 1Shares 1 condition
- ARL13BARF like GTPase 13BShares 1 condition
- ARL3ARF like GTPase 3Shares 1 condition
- ARMC9armadillo repeat containing 9Shares 1 condition
- B9D1B9 domain containing 1Shares 1 condition
- B9D2B9 domain containing 2Shares 1 condition
- CC2D2Acoiled-coil and C2 domain containing 2AShares 1 condition
- CEP104centrosomal protein 104Shares 1 condition
- CEP120centrosomal protein 120Shares 1 condition
- CEP290centrosomal protein 290Shares 1 condition
- CEP41centrosomal protein 41Shares 1 condition
- CPLANE1ciliogenesis and planar polarity effector complex subunit 1Shares 1 condition
Traits linked to FAM149B1
The Human Phenotype Ontology lists these as features of the rare conditions FAM149B1 can cause. Each trait's page lists the other genes linked to it.
Abnormality of the nervous system
- Global developmental delay
- Intellectual disability
- Abnormal gait
- Ataxia
- Hypoplasia of olfactory tract
- Molar tooth sign on MRI
- Abnormality of neuronal migration
- Aplasia/Hypoplasia of the corpus callosum
Show 4 more traits
Abnormality of limbs
- Mesoaxial hand polydactyly
- Curvature of finger
- Preaxial polydactyly
- Short fingers or toes
- Webbed fingers or toes
- Duplication of bones of the toes
- Extra finger
- Mesoaxial polydactyly
Show 1 more trait
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.). FAM149B1 gene: family with sequence similarity 149 member B1. Retrieved 17 October 2026, from https://dantelabs.com/genes/fam149b1
Dante Labs. FAM149B1 gene: family with sequence similarity 149 member B1 [Internet]. [cited 17 October 2026]. Available from: https://dantelabs.com/genes/fam149b1
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