ALKBH1
Nucleic acid dioxygenase ALKBH1
Also known as: ABH, alkB, ALKB1_HUMAN, ALKBH, hABH
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- Q13686
- Gene
- ALKBH1
- Ensembl
- ENSG00000100601
- Chromosome
- 14
- Canonical length
- 389 aa
- Protein class
- Enzymes, Plasma proteins, Predicted intracellular proteins
- Subcellular location
- Nucleoplasm,Endoplasmic reticulum
OverviewNCBI Gene
This gene encodes a homolog to the E. coli alkB gene product. The E. coli alkB protein is part of the adaptive response mechanism of DNA alkylation damage repair. It is involved in damage reversal by oxidative demethylation of 1-methyladenine and 3-methylcytosine. [provided by RefSeq, Jul 2008]
Canonical amino-acid sequenceUniProt
389 residues, UniProt reviewed canonical sequence.
>Q13686|ALKBH1
1 MGKMAAAVGS VATLATEPGE DAFRKLFRFY RQSRPGTADL EGVIDFSAAH AARGKGPGAQ
61 KVIKSQLNVS SVSEQNAYRA GLQPVSKWQA YGLKGYPGFI FIPNPFLPGY QWHWVKQCLK
121 LYSQKPNVCN LDKHMSKEET QDLWEQSKEF LRYKEATKRR PRSLLEKLRW VTVGYHYNWD
181 SKKYSADHYT PFPSDLGFLS EQVAAACGFE DFRAEAGILN YYRLDSTLGI HVDRSELDHS
241 KPLLSFSFGQ SAIFLLGGLQ RDEAPTAMFM HSGDIMIMSG FSRLLNHAVP RVLPNPEGEG
301 LPHCLEAPLP AVLPRDSMVE PCSMEDWQVC ASYLKTARVN MTVRQVLATD QNFPLEPIED
361 EKRDISTEGF CHLDDQNSEV KRARINPDSLocalizationUniProt · AlphaFold · HPA
Whether an antibody against ALKBH1 can act on the native protein depends on physical access: surface and secreted proteins are reachable by circulating antibodies, intracellular proteins usually are not.
- Antibody reachability
- Intracellular
- Secreted
- No
- Transmembrane segments
- 0
- Mean surface accessibility (rSASA)
- 0.3
- Highest tissue expression
- 6.9 nTPM
Expression across tissuesHPA
Tissue
- tongue: 6.9 nTPM
- skeletal muscle: 5.5 nTPM
- thymus: 4.1 nTPM
- heart muscle: 3.9 nTPM
- tonsil: 3.9 nTPM
- placenta: 3.7 nTPM
Single-cell type
- myonuclei: 66 nCPM
- cardiomyocytes: 51 nCPM
- medullary thymic epithelial cells: 41 nCPM
- undifferentiated spermatogonia: 40 nCPM
- renal collecting duct intercalated cells: 36 nCPM
- choroid plexus epithelial cells: 34 nCPM
Immune cell
- basophil: 11 nTPM
- NK-cell: 3.6 nTPM
- intermediate monocyte: 3.5 nTPM
- memory B-cell: 3.4 nTPM
- T-reg: 3.3 nTPM
- classical monocyte: 3 nTPM
Brain region
- cerebellum: 5.5 nTPM
- hypothalamus: 4.8 nTPM
- basal ganglia: 4.2 nTPM
- white matter: 4.2 nTPM
- midbrain: 4.1 nTPM
- cerebral cortex: 4 nTPM
Genetic constraint and essentialitygnomAD · DepMap
Does the body need this protein intact? Low LOEUF or a strong DepMap dependency means loss or blockade of the protein is likely to be felt.
- gnomAD LOEUF (loss-of-function intolerance)
- 1.03
- gnomAD pLI
- 0
- gnomAD missense Z
- 0.05
- DepMap mean gene effect
- -0.08
- DepMap dependency class
- selective
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 6% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).
OntologyGO
Biological processes
- developmental growth
- DNA repair
- in utero embryonic development
- negative regulation of neuron apoptotic process
- neuron migration
- neuron projection development
- oxidative RNA demethylation
- placenta development
- positive regulation of gene expression, epigenetic
- regulation of mitochondrial translation
- regulation of translational elongation
- regulation of translational initiation
- RNA repair
- tRNA wobble cytosine modification
- regulation of translational initiation by tRNA modification
Molecular functions
- 2-oxoglutarate-dependent dioxygenase activity
- broad specificity oxidative DNA demethylase activity
- chemoattractant activity
- class I DNA-(apurinic or apyrimidinic site) endonuclease activity
- DNA N6-methyladenine demethylase activity
- ferrous iron binding
- oxidative RNA demethylase activity
- tRNA binding
- tRNA demethylase activity
- 2-oxoglutarate-dependent tRNA 5-methylcytidine formyltransferase activity
Cellular components
Protein domainsUniProt · Pfam · InterPro
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of ALKBH1 in the human serome: UniProt-annotated complex subunits plus reported interactors. Each links to its own Seroatlas record.
Antibody and autoantibody relevanceSeroatlas analysis
Seroatlas reads ALKBH1 as an antibody target. Whether an autoantibody or antibody against ALKBH1 could matter depends on whether native ALKBH1 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
ALKBH1 is annotated as predominantly intracellular. Intracellular proteins are common autoantibody markers, becoming visible to the immune system after cell injury or altered processing, but are usually markers of disease rather than direct drivers.
Annotation status
The present source text does not explicitly label ALKBH1 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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