Seroatlas · Human Serome Atlas

PFKL

ATP-dependent 6-phosphofructokinase, liver type

Also known as: PFKAL_HUMAN

Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene

Protein identityUniProt · HPA

UniProt accession
P17858
Gene
PFKL
Ensembl
ENSG00000141959
Chromosome
21
Canonical length
780 aa
Protein class
Enzymes, Metabolic proteins, Plasma proteins, Predicted intracellular proteins
Subcellular location
Nucleoli,Mitochondria

OverviewNCBI Gene

This gene encodes the liver (L) subunit of an enzyme that catalyzes the conversion of D-fructose 6-phosphate to D-fructose 1,6-bisphosphate, which is a key step in glucose metabolism (glycolysis). This enzyme is a tetramer that may be composed of different subunits encoded by distinct genes in different tissues. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Mar 2014]

Canonical amino-acid sequenceUniProt

780 residues, UniProt reviewed canonical sequence.

>P17858|PFKL
     1  MAAVDLEKLR ASGAGKAIGV LTSGGDAQGM NAAVRAVTRM GIYVGAKVFL IYEGYEGLVE
    61  GGENIKQANW LSVSNIIQLG GTIIGSARCK AFTTREGRRA AAYNLVQHGI TNLCVIGGDG
   121  SLTGANIFRS EWGSLLEELV AEGKISETTA RTYSHLNIAG LVGSIDNDFC GTDMTIGTDS
   181  ALHRIMEVID AITTTAQSHQ RTFVLEVMGR HCGYLALVSA LASGADWLFI PEAPPEDGWE
   241  NFMCERLGET RSRGSRLNII IIAEGAIDRN GKPISSSYVK DLVVQRLGFD TRVTVLGHVQ
   301  RGGTPSAFDR ILSSKMGMEA VMALLEATPD TPACVVTLSG NQSVRLPLME CVQMTKEVQK
   361  AMDDKRFDEA TQLRGGSFEN NWNIYKLLAH QKPPKEKSNF SLAILNVGAP AAGMNAAVRS
   421  AVRTGISHGH TVYVVHDGFE GLAKGQVQEV GWHDVAGWLG RGGSMLGTKR TLPKGQLESI
   481  VENIRIYGIH ALLVVGGFEA YEGVLQLVEA RGRYEELCIV MCVIPATISN NVPGTDFSLG
   541  SDTAVNAAME SCDRIKQSAS GTKRRVFIVE TMGGYCGYLA TVTGIAVGAD AAYVFEDPFN
   601  IHDLKVNVEH MTEKMKTDIQ RGLVLRNEKC HDYYTTEFLY NLYSSEGKGV FDCRTNVLGH
   661  LQQGGAPTPF DRNYGTKLGV KAMLWLSEKL REVYRKGRVF ANAPDSACVI GLKKKAVAFS
   721  PVTELKKDTD FEHRMPREQW WLSLRLMLKM LAQYRISMAA YVSGELEHVT RRTLSMDKGF

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against PFKL 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)
0.2
Highest tissue expression
94 nTPM

Expression across tissuesHPA

Tissue

  • duodenum: 94 nTPM
  • kidney: 89 nTPM
  • small intestine: 87 nTPM
  • spinal cord: 75 nTPM
  • esophagus: 75 nTPM
  • colon: 74 nTPM

Single-cell type

  • enterocytes: 317 nCPM
  • esophageal apical cells: 293 nCPM
  • colonocytes: 235 nCPM
  • extravillous trophoblasts: 229 nCPM
  • syncytiotrophoblasts: 189 nCPM
  • enteric transient amplifying cells: 185 nCPM

Immune cell

  • non-classical monocyte: 127 nTPM
  • intermediate monocyte: 119 nTPM
  • total PBMC: 84 nTPM
  • myeloid DC: 84 nTPM
  • T-reg: 79 nTPM
  • classical monocyte: 72 nTPM

Brain region

  • white matter: 131 nTPM
  • medulla oblongata: 129 nTPM
  • thalamus: 126 nTPM
  • spinal cord: 116 nTPM
  • midbrain: 111 nTPM
  • cerebellum: 104 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
1.68
DepMap mean gene effect
0.05
DepMap dependency class
none

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

Molecular functions

Cellular components

Protein domainsUniProt · Pfam · InterPro

KeywordsUniProt

InteractionsUniProt · HPA

Protein binding partners of PFKL 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 PFKL as an antibody target. Whether an autoantibody or antibody against PFKL could matter depends on whether native PFKL is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.

PFKL 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 PFKL as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.

Canonical record: https://seroatlas.com/gene/PFKL. Study-independent annotations aggregated from UniProt, Human Protein Atlas, PubMed, IEDB, Pfam, InterPro, Gene Ontology, AlphaFold, gnomAD, DepMap, ClinVar, TCGA. Catalog release seroatlas-reviewed-human-uniprot-20260313.

Seroatlas is the reference for exploring autoantibody and antibody serology at the human-protein level: the autoreactome and human serome, multiplex serology (HuProt, HuScan, VirScan, PhIP-Seq).

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