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FOXK2
HPA
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  • FOXK2
PROTEIN SUMMARY GENE INFORMATION RNA DATA ANTIBODY DATA
GENERAL INFORMATIONi

General description of the gene and the encoded protein(s) using information from HGNC and Ensembl, as well as predictions made by the Human Protein Atlas project.

Gene namei

Official gene symbol, which is typically a short form of the gene name, according to HGNC.

FOXK2
Synonyms ILF, ILF1
Gene descriptioni

Full gene name according to HGNC.

Forkhead box K2
Protein classi

Assigned HPA protein class(es) for the encoded protein(s).

Transcription factors
Predicted locationi

All transcripts of all genes have been analyzed regarding the location(s) of corresponding protein based on prediction methods for signal peptides and transmembrane regions.

  • Genes with at least one transcript predicted to encode a secreted protein, according to prediction methods or to UniProt location data, have been further annotated and classified with the aim to determine if the corresponding protein(s) are secreted or actually retained in intracellular locations or membrane-attached.

  • Remaining genes, with no transcript predicted to encode a secreted protein, will be assigned the prediction-based location(s).

The annotated location overrules the predicted location, so that a gene encoding a predicted secreted protein that has been annotated as intracellular will have intracellular as the final location.

Intracellular
Protein evidence Evidence at protein level (all genes)
GENE INFORMATIONi

Gene information from Ensembl and Entrez, as well as links to available gene identifiers are displayed here. Information was retrieved from Ensembl if not indicated otherwise.

Chromosome 17
Cytoband q25.3
Chromosome location (bp) 82519713 - 82644662
Number of transcriptsi

Number of protein-coding transcripts from the gene as defined by Ensembl.

4
Ensembl ENSG00000141568 (version 109)
Entrez gene 3607
HGNC HGNC:6036
UniProt Q01167 (UniProt - Evidence at protein level)
neXtProt NX_Q01167
GeneCards FOXK2
Antibodypedia FOXK2 antibodies


PROTEIN FUNCTION
Protein function (UniProt)i

Useful information about the protein provided by UniProt.

Transcriptional regulator involved in different processes such as glucose metabolism, aerobic glycolysis and autophagy (By similarity). Recognizes and binds the forkhead DNA sequence motif (5'- GTAAACA-3') and can both act as a transcription activator or repressor, depending on the context 1, 2. Together with FOXK1, acts as a key regulator of metabolic reprogramming towards aerobic glycolysis, a process in which glucose is converted to lactate in the presence of oxygen (By similarity). Acts by promoting expression of enzymes for glycolysis (such as hexokinase-2 (HK2), phosphofructokinase, pyruvate kinase (PKLR) and lactate dehydrogenase), while suppressing further oxidation of pyruvate in the mitochondria by up-regulating pyruvate dehydrogenase kinases PDK1 and PDK4 (By similarity). Probably plays a role in gluconeogenesis during overnight fasting, when lactate from white adipose tissue and muscle is the main substrate (By similarity). Together with FOXK1, acts as a negative regulator of autophagy in skeletal muscle: in response to starvation, enters the nucleus, binds the promoters of autophagy genes and represses their expression, preventing proteolysis of skeletal muscle proteins (By similarity). In addition to the 5'-GTAAACA-3' DNA motif, also binds the 5'-TGANTCA-3' palindromic DNA motif, and co-associates with JUN/AP-1 to activate transcription 3. Also able to bind to a minimal DNA heteroduplex containing a G/T-mismatch with 5'- TRT[G/T]NB-3' sequence 4. Binds to NFAT-like motifs (purine-rich) in the IL2 promoter 5. Positively regulates WNT/beta-catenin signaling by translocating DVL proteins into the nucleus 6. Also binds to HIV-1 long terminal repeat. May be involved in both positive and negative regulation of important viral and cellular promoter elements 7. Accessory component of the polycomb repressive deubiquitinase (PR-DUB) complex; recruits the PR-DUB complex to specific FOXK2-bound genes 8, 9.... show less
Molecular function (UniProt)i

Keywords assigned by UniProt to proteins due to their particular molecular function.

Activator, DNA-binding, Repressor
Biological process (UniProt)i

Keywords assigned by UniProt to proteins because they are involved in a particular biological process.

Transcription, Transcription regulation, Ubl conjugation pathway
Ligand (UniProt)i

Keywords assigned by UniProt to proteins because they bind, are associated with, or whose activity is dependent of some molecule.

Magnesium, Metal-binding
Gene summary (Entrez)i

Useful information about the gene from Entrez

The protein encoded by this gene contains a fork head DNA binding domain. This protein can bind to the purine-rich motifs of the HIV long terminal repeat (LTR), and to the similar purine-rich motif in the interleukin 2 (IL2) promoter. It may be involved in the regulation of viral and cellular promoter elements. [provided by RefSeq, Jul 2008]... show less
PROTEIN INFORMATIONi

The protein information section displays alternative protein-coding transcripts (splice variants) encoded by this gene according to the Ensembl database.

The Splice variant identifier links to the Ensembl website protein summary for the selected splice variant. The data in the Swissprot and TrEMBL columns links to corresponding pages in the UniProt database.

The protein classes assigned to this protein are shown if expanding the data in the protein class column. Parent protein classes are in bold font and subclasses are listed under the parent class.

The length of the protein (amino acid residues according to Ensembl), molecular mass (kDalton), predicted signal peptide and number of predicted transmembrane region(s) according to in-house majority decision methods based on sets of predictors are also reported.
Splice variant SwissProt TrEMBL Protein class Gene ontology Length & mass Signal peptide
(predicted)
Transmembrane regions
(predicted)
FOXK2-201
ENSP00000335677
ENST00000335255
Q01167
[Direct mapping] Forkhead box protein K2
Show all
   SPOCTOPUS predicted secreted proteins
Predicted intracellular proteins
   Intracellular proteins predicted by MDM and MDSEC
Transcription factors
   Helix-turn-helix domains
Mapped to neXtProt
   neXtProt - Evidence at protein level
Protein evidence (Kim et al 2014)
Protein evidence (Ezkurdia et al 2014)
Show all
GO:0000122 [negative regulation of transcription by RNA polymerase II]
GO:0000287 [magnesium ion binding]
GO:0000785 [chromatin]
GO:0000976 [transcription cis-regulatory region binding]
GO:0000978 [RNA polymerase II cis-regulatory region sequence-specific DNA binding]
GO:0000981 [DNA-binding transcription factor activity, RNA polymerase II-specific]
GO:0001227 [DNA-binding transcription repressor activity, RNA polymerase II-specific]
GO:0001228 [DNA-binding transcription activator activity, RNA polymerase II-specific]
GO:0001678 [cellular glucose homeostasis]
GO:0003677 [DNA binding]
GO:0003700 [DNA-binding transcription factor activity]
GO:0005515 [protein binding]
GO:0005634 [nucleus]
GO:0005654 [nucleoplasm]
GO:0005737 [cytoplasm]
GO:0005739 [mitochondrion]
GO:0006355 [regulation of DNA-templated transcription]
GO:0006357 [regulation of transcription by RNA polymerase II]
GO:0010507 [negative regulation of autophagy]
GO:0010906 [regulation of glucose metabolic process]
GO:0042594 [response to starvation]
GO:0043231 [intracellular membrane-bounded organelle]
GO:0043565 [sequence-specific DNA binding]
GO:0045892 [negative regulation of DNA-templated transcription]
GO:0045893 [positive regulation of DNA-templated transcription]
GO:0045944 [positive regulation of transcription by RNA polymerase II]
GO:0046872 [metal ion binding]
GO:0061621 [canonical glycolysis]
Show all
660 aa
69.1 kDa
No 0
FOXK2-203
ENSP00000432663
ENST00000526383
E9PPI7
[Direct mapping] Forkhead box protein K2
Show all
Predicted intracellular proteins
   Intracellular proteins predicted by MDM and MDSEC
Protein evidence (Ezkurdia et al 2014)
Show all
GO:0003677 [DNA binding]
GO:0003700 [DNA-binding transcription factor activity]
GO:0005634 [nucleus]
GO:0006355 [regulation of DNA-templated transcription]
GO:0043565 [sequence-specific DNA binding]
Show all
253 aa
27.7 kDa
No 0
FOXK2-206
ENSP00000433167
ENST00000531030
E9PM37
[Direct mapping] Forkhead box protein K2
Show all
Predicted intracellular proteins
   Intracellular proteins predicted by MDM and MDSEC
Protein evidence (Ezkurdia et al 2014)
Show all
GO:0003677 [DNA binding]
GO:0003700 [DNA-binding transcription factor activity]
GO:0005634 [nucleus]
GO:0006355 [regulation of DNA-templated transcription]
GO:0043565 [sequence-specific DNA binding]
Show all
172 aa
19.1 kDa
No 0
FOXK2-211
ENSP00000461540
ENST00000575578
I3L4U8
[Direct mapping] Forkhead box protein K2
Show all
   MEMSAT3 predicted membrane proteins
   SCAMPI predicted membrane proteins
   SPOCTOPUS predicted membrane proteins
Predicted intracellular proteins
   Intracellular proteins predicted by MDM and MDSEC
Protein evidence (Ezkurdia et al 2014)
Show all
129 aa
13.5 kDa
No 0

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