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PFKFB1 6-phosphofructo-2-kinase/fructose-2,6-biphosphatase 1 [ Homo sapiens (human) ]

Gene ID: 5207, updated on 23-Nov-2021

Summary

Official Symbol
PFKFB1provided by HGNC
Official Full Name
6-phosphofructo-2-kinase/fructose-2,6-biphosphatase 1provided by HGNC
Primary source
HGNC:HGNC:8872
See related
Ensembl:ENSG00000158571 MIM:311790
Gene type
protein coding
RefSeq status
REVIEWED
Organism
Homo sapiens
Lineage
Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo
Also known as
F6PK; HL2K; PFRX
Summary
This gene encodes a member of the family of bifunctional 6-phosphofructo-2-kinase:fructose-2,6-biphosphatase enzymes. The enzyme forms a homodimer that catalyzes both the synthesis and degradation of fructose-2,6-biphosphate using independent catalytic domains. Fructose-2,6-biphosphate is an activator of the glycolysis pathway and an inhibitor of the gluconeogenesis pathway. Consequently, regulating fructose-2,6-biphosphate levels through the activity of this enzyme is thought to regulate glucose homeostasis. Multiple alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, Nov 2012]
Expression
Biased expression in fat (RPKM 14.1) and liver (RPKM 5.1) See more
Orthologs
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Genomic context

See PFKFB1 in Genome Data Viewer
Location:
Xp11.21
Exon count:
17
Annotation release Status Assembly Chr Location
109.20211119 current GRCh38.p13 (GCF_000001405.39) X NC_000023.11 (54932961..55000052, complement)
105.20201022 previous assembly GRCh37.p13 (GCF_000001405.25) X NC_000023.10 (54959394..55025222, complement)

Chromosome X - NC_000023.11Genomic Context describing neighboring genes Neighboring gene MAGE family member D2 Neighboring gene small nucleolar RNA, H/ACA box 11 Neighboring gene small nucleolar RNA, H/ACA box 11G Neighboring gene trophinin Neighboring gene Sharpr-MPRA regulatory regions 2439 and 5762 Neighboring gene ALAS2 intronic erythroid enhancer Neighboring gene apurinic/apyrimidinic endodeoxyribonuclease 2 Neighboring gene 5'-aminolevulinate synthase 2

Genomic regions, transcripts, and products

Expression

  • Project title: HPA RNA-seq normal tissues
  • Description: RNA-seq was performed of tissue samples from 95 human individuals representing 27 different tissues in order to determine tissue-specificity of all protein-coding genes
  • BioProject: PRJEB4337
  • Publication: PMID 24309898
  • Analysis date: Wed Apr 4 07:08:55 2018

Bibliography

GeneRIFs: Gene References Into Functions

What's a GeneRIF?

Pathways from PubChem

Interactions

Products Interactant Other Gene Complex Source Pubs Description

General gene information

Markers

Homology

Clone Names

  • MGC116715, MGC116717

Gene Ontology Provided by GOA

Function Evidence Code Pubs
enables 6-phosphofructo-2-kinase activity IBA
Inferred from Biological aspect of Ancestor
more info
PubMed 
enables 6-phosphofructo-2-kinase activity TAS
Traceable Author Statement
more info
PubMed 
enables ATP binding IEA
Inferred from Electronic Annotation
more info
 
enables fructose-2,6-bisphosphate 2-phosphatase activity IBA
Inferred from Biological aspect of Ancestor
more info
PubMed 
enables fructose-2,6-bisphosphate 2-phosphatase activity IDA
Inferred from Direct Assay
more info
PubMed 
enables fructose-6-phosphate binding IEA
Inferred from Electronic Annotation
more info
 
enables identical protein binding IPI
Inferred from Physical Interaction
more info
PubMed 
enables kinase binding IEA
Inferred from Electronic Annotation
more info
 
enables protein binding IPI
Inferred from Physical Interaction
more info
PubMed 
Process Evidence Code Pubs
involved_in animal organ regeneration IEA
Inferred from Electronic Annotation
more info
 
involved_in carbohydrate phosphorylation IEA
Inferred from Electronic Annotation
more info
 
involved_in dephosphorylation IEA
Inferred from Electronic Annotation
more info
 
involved_in fructose 2,6-bisphosphate metabolic process IBA
Inferred from Biological aspect of Ancestor
more info
PubMed 
involved_in fructose 2,6-bisphosphate metabolic process IDA
Inferred from Direct Assay
more info
PubMed 
involved_in fructose metabolic process IEA
Inferred from Electronic Annotation
more info
 
involved_in gluconeogenesis TAS
Traceable Author Statement
more info
PubMed 
involved_in glycolytic process TAS
Traceable Author Statement
more info
PubMed 
involved_in positive regulation of glucokinase activity IEA
Inferred from Electronic Annotation
more info
 
involved_in response to cAMP IEA
Inferred from Electronic Annotation
more info
 
involved_in response to glucagon IEA
Inferred from Electronic Annotation
more info
 
involved_in response to glucocorticoid IEA
Inferred from Electronic Annotation
more info
 
involved_in response to insulin IEA
Inferred from Electronic Annotation
more info
 
involved_in response to starvation IEA
Inferred from Electronic Annotation
more info
 
Component Evidence Code Pubs
part_of 6-phosphofructo-2-kinase/fructose-2,6-biphosphatase complex IBA
Inferred from Biological aspect of Ancestor
more info
PubMed 
part_of 6-phosphofructo-2-kinase/fructose-2,6-biphosphatase complex IDA
Inferred from Direct Assay
more info
PubMed 
is_active_in cytosol IBA
Inferred from Biological aspect of Ancestor
more info
PubMed 
located_in cytosol TAS
Traceable Author Statement
more info
 

General protein information

Preferred Names
6-phosphofructo-2-kinase/fructose-2,6-bisphosphatase 1
Names
6PF-2-K/Fru-2,6-P2ASE liver isozyme
6PF-2-K/Fru-2,6-P2ase 1
PFK/FBPase 1
fructose-6-phosphate,2-kinase:fructose-2,6-bisphosphatase
NP_001258733.1
NP_001258734.1
NP_002616.2
XP_016885065.1
XP_016885066.1
XP_016885067.1
XP_024308157.1

NCBI Reference Sequences (RefSeq)

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RefSeqs maintained independently of Annotated Genomes

These reference sequences exist independently of genome builds. Explain

These reference sequences are curated independently of the genome annotation cycle, so their versions may not match the RefSeq versions in the current genome build. Identify version mismatches by comparing the version of the RefSeq in this section to the one reported in Genomic regions, transcripts, and products above.

Genomic

  1. NG_013254.1 RefSeqGene

    Range
    4891..66118
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)

mRNA and Protein(s)

  1. NM_001271804.2NP_001258733.1  6-phosphofructo-2-kinase/fructose-2,6-bisphosphatase 1 isoform 2

    See identical proteins and their annotated locations for NP_001258733.1

    Status: REVIEWED

    Description
    Transcript Variant: This variant (2) lacks an in-frame segment in the coding region, compared to variant 1. The resulting isoform (2) is shorter than isoform 1.
    Source sequence(s)
    AK300724, AK314089, AL020991, AL049732, JQ425695
    UniProtKB/Swiss-Prot
    P16118
    UniProtKB/TrEMBL
    I1Z9G4
    Conserved Domains (3) summary
    pfam00300
    Location:232415
    His_Phos_1; Histidine phosphatase superfamily (branch 1)
    pfam01591
    Location:30229
    6PF2K; 6-phosphofructo-2-kinase
    pfam13671
    Location:44176
    AAA_33; AAA domain
  2. NM_001271805.2NP_001258734.1  6-phosphofructo-2-kinase/fructose-2,6-bisphosphatase 1 isoform 3

    See identical proteins and their annotated locations for NP_001258734.1

    Status: REVIEWED

    Description
    Transcript Variant: This variant (3) lacks two 5' exons and contains an alternate 5' exon, compared to variant 1. The resulting isoform (3) has a distinct N-terminus and is shorter than isoform 1.
    Source sequence(s)
    AK300724, AL020991, AL049732
    Consensus CDS
    CCDS65273.1
    UniProtKB/Swiss-Prot
    P16118
    Related
    ENSP00000444074.1, ENST00000545676.5
    Conserved Domains (2) summary
    pfam00300
    Location:189372
    His_Phos_1; Histidine phosphatase superfamily (branch 1)
    pfam01591
    Location:7186
    6PF2K; 6-phosphofructo-2-kinase
  3. NM_002625.4NP_002616.2  6-phosphofructo-2-kinase/fructose-2,6-bisphosphatase 1 isoform 1

    See identical proteins and their annotated locations for NP_002616.2

    Status: REVIEWED

    Description
    Transcript Variant: This variant (1) encodes the longest isoform (1).
    Source sequence(s)
    AK314089, AL020991, AL049732, AL703826, X52638
    Consensus CDS
    CCDS14364.1
    UniProtKB/Swiss-Prot
    P16118
    Related
    ENSP00000364145.3, ENST00000375006.8
    Conserved Domains (3) summary
    pfam00300
    Location:254437
    His_Phos_1; Histidine phosphatase superfamily (branch 1)
    pfam01591
    Location:30251
    6PF2K; 6-phosphofructo-2-kinase
    pfam13671
    Location:44198
    AAA_33; AAA domain

RNA

  1. NR_073450.2 RNA Sequence

    Status: REVIEWED

    Description
    Transcript Variant: This variant (4) lacks an internal exon, compared to variant 1. This variant is represented as non-coding because the use of the 5'-most supported translational start codon, as used in variant 1, renders the transcript a candidate for nonsense-mediated mRNA decay (NMD).
    Source sequence(s)
    AK300724, AK314089, AL020991, AL049732, JQ425694

RefSeqs of Annotated Genomes: Homo sapiens Updated Annotation Release 109.20211119

The following sections contain reference sequences that belong to a specific genome build. Explain

Reference GRCh38.p13 Primary Assembly

Genomic

  1. NC_000023.11 Reference GRCh38.p13 Primary Assembly

    Range
    54932961..55000052 complement
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)

mRNA and Protein(s)

  1. XM_024452389.1XP_024308157.1  6-phosphofructo-2-kinase/fructose-2,6-bisphosphatase 1 isoform X4

    Conserved Domains (2) summary
    pfam01591
    Location:11228
    6PF2K; 6-phosphofructo-2-kinase
    pfam00300
    Location:231417
    His_Phos_1; Histidine phosphatase superfamily (branch 1)
  2. XM_017029576.1XP_016885065.1  6-phosphofructo-2-kinase/fructose-2,6-bisphosphatase 1 isoform X1

  3. XM_017029578.1XP_016885067.1  6-phosphofructo-2-kinase/fructose-2,6-bisphosphatase 1 isoform X3

  4. XM_017029577.1XP_016885066.1  6-phosphofructo-2-kinase/fructose-2,6-bisphosphatase 1 isoform X2

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