ULK3
Serine/threonine-protein kinase ULK3
Also known as: DKFZP434C131, FLJ90566, ULK3_HUMAN
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- Q6PHR2
- Gene
- ULK3
- Ensembl
- ENSG00000140474
- Chromosome
- 15
- Canonical length
- 472 aa
- Protein class
- Enzymes, Predicted intracellular proteins
- Subcellular location
- Acrosome
OverviewNCBI Gene
Enables protein serine/threonine kinase activity. Involved in several processes, including fibroblast activation; protein autophosphorylation; and regulation of smoothened signaling pathway. Located in cytoplasm. [provided by Alliance of Genome Resources, Jul 2025]
Canonical amino-acid sequenceUniProt
472 residues, UniProt reviewed canonical sequence.
>Q6PHR2|ULK3
1 MAGPGWGPPR LDGFILTERL GSGTYATVYK AYAKKDTREV VAIKCVAKKS LNKASVENLL
61 TEIEILKGIR HPHIVQLKDF QWDSDNIYLI MEFCAGGDLS RFIHTRRILP EKVARVFMQQ
121 LASALQFLHE RNISHLDLKP QNILLSSLEK PHLKLADFGF AQHMSPWDEK HVLRGSPLYM
181 APEMVCQRQY DARVDLWSMG VILYEALFGQ PPFASRSFSE LEEKIRSNRV IELPLRPLLS
241 RDCRDLLQRL LERDPSRRIS FQDFFAHPWV DLEHMPSGES LGRATALVVQ AVKKDQEGDS
301 AAALSLYCKA LDFFVPALHY EVDAQRKEAI KAKVGQYVSR AEELKAIVSS SNQALLRQGT
361 SARDLLREMA RDKPRLLAAL EVASAAMAKE EAAGGEQDAL DLYQHSLGEL LLLLAAEPPG
421 RRRELLHTEV QNLMARAEYL KEQVKMRESR WEADTLDKEG LSESVRSSCT LQLocalizationUniProt · AlphaFold · HPA
Whether an antibody against ULK3 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
- 31 nTPM
Expression across tissuesHPA
Tissue
- cerebellum: 31 nTPM
- esophagus: 29 nTPM
- skin: 23 nTPM
- cerebral cortex: 22 nTPM
- skeletal muscle: 20 nTPM
- basal ganglia: 18 nTPM
Single-cell type
- esophageal apical cells: 259 nCPM
- retinal amacrine cells: 93 nCPM
- enterocytes: 60 nCPM
- brain excitatory neurons: 59 nCPM
- tuft cells: 58 nCPM
- brain inhibitory neurons: 57 nCPM
Immune cell
- gdT-cell: 11 nTPM
- T-reg: 9.2 nTPM
- memory CD8 T-cell: 9 nTPM
- MAIT T-cell: 8.7 nTPM
- intermediate monocyte: 7.2 nTPM
- naive CD4 T-cell: 7.1 nTPM
Brain region
- pons: 35 nTPM
- cerebral cortex: 26 nTPM
- white matter: 22 nTPM
- basal ganglia: 20 nTPM
- medulla oblongata: 20 nTPM
- cerebellum: 18 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)
- 0.58
- gnomAD pLI
- 0
- gnomAD missense Z
- 1.24
- DepMap mean gene effect
- -0.08
- DepMap dependency class
- selective
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 5% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).
OntologyGO
Biological processes
- autophagosome assembly
- autophagy
- cellular senescence
- fibroblast activation
- mitophagy
- negative regulation of smoothened signaling pathway
- piecemeal microautophagy of the nucleus
- positive regulation of smoothened signaling pathway
- protein autophosphorylation
- regulation of autophagy
- response to starvation
- reticulophagy
- smoothened signaling pathway
Molecular functions
Cellular components
Protein domainsUniProt · Pfam · InterPro
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of ULK3 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 ULK3 as an antibody target. Whether an autoantibody or antibody against ULK3 could matter depends on whether native ULK3 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
ULK3 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 ULK3 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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