Gene
KLF1
KLF transcription factor 1
- HGNC 6345↗(opens in a new tab)
- Ensembl gene ENSG00000105610↗(opens in a new tab)
- NCBI Gene 10661↗(opens in a new tab)
Summary
- Cytogenetic location
- 19p13.13
- Coordinates
- Chromosome 19: 12,884,422–12,887,201 (GRCh38)
- Exons
- 3 exons across 2.8 kb
- Protein
- 362 amino acids
- Also known as
- EKLF
- MANE Select transcript
- ENST00000264834.6NM_006563.5
- 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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Congenital Dyserythropoietic Anaemias
- Congenital Dyserythropoietic Anaemia
A group of conditions (types I to IV and related forms) caused by changes in genes such as CDAN1, CDIN1, SEC23B, KIF23, KLF1 and GATA1, mostly inherited recessively, with some dominant forms.
- 3 GenCC submitters rate it definitive or strong
What knowing changes
A diagnosis guides monitoring and treatment of iron overload, which can develop even without transfusions; interferon-alpha can help in type I.
How KLF1 is laid out
- Coding sequence
- Untranslated region
- Intron
- Direction of transcription
- Known disease-causing sites
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 1.6 kb of the gene's 2.8 kb; 1,089 of those bases code for the protein.
How a genome test reads KLF1
9
positions in KLF1 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 2.8 kb of KLF1, introns included, not only the 1.6 kb of exons.
Genes linked to the same conditions
Traits linked to KLF1
The Human Phenotype Ontology lists these as features of the rare conditions KLF1 can cause. Each trait's page lists the other genes linked to it.
Abnormality of blood and blood-forming tissues
- Anisopoikilocytosis
- Blood cancer
- Circulating nucleated red blood cells
- Decreased hemoglobin concentration
- Decreased mean corpuscular hemoglobin concentration
- Decreased mean corpuscular volume
- Erythroid dysplasia
- Erythroid hyperplasia
Show 18 more traits
- Hemoglobin Barts
- Hemolytic anemia
- Hypochromia
- Increased immature red blood cells
- Increased RBC distribution width
- Low number of red blood cells or hemoglobin
- Persistence of hemoglobin F
- Poikilocytosis
- Polychromasia
- Reduced hematocrit
- Reduced red cell pyruvate kinase level
- Schistocytosis
- Unequal size of red blood cells
- HbS hemoglobin
- Target cells
- Hypochromic microcytic anemia
- Increased red cell sickling tendency
- Anemia of inadequate production
Laboratory abnormality
- Conjugated hyperbilirubinemia
- Decreased circulating haptoglobin concentration
- High bili total
- Increased circulating lactate dehydrogenase concentration
- Unconjugated hyperbilirubinemia
- Elevated circulating alanine aminotransferase concentration
- Elevated circulating aspartate aminotransferase concentration
- High blood bilirubin levels
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.). KLF1 gene: KLF transcription factor 1. Retrieved 17 October 2026, from https://dantelabs.com/genes/klf1
Dante Labs. KLF1 gene: KLF transcription factor 1 [Internet]. [cited 17 October 2026]. Available from: https://dantelabs.com/genes/klf1
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