Seroatlas · Human Serome Atlas

PFKP

ATP-dependent 6-phosphofructokinase, platelet type

Also known as: PFK-C, PFKAP_HUMAN, PFKF

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

Protein identityUniProt · HPA

UniProt accession
Q01813
Gene
PFKP
Ensembl
ENSG00000067057
Chromosome
10
Canonical length
784 aa
Protein class
Enzymes, Metabolic proteins, Plasma proteins, Predicted intracellular proteins
Subcellular location
Cytosol

OverviewNCBI Gene

This gene encodes a member of the phosphofructokinase A protein family. The encoded enzyme is the platelet-specific isoform of phosphofructokinase and plays a key role in glycolysis regulation. This gene may play a role in metabolic reprogramming in some cancers, including clear cell renal cell carcinomas, and cancer of the bladder, breast, and lung. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Sep 2016]

Canonical amino-acid sequenceUniProt

784 residues, UniProt reviewed canonical sequence.

>Q01813|PFKP
     1  MDADDSRAPK GSLRKFLEHL SGAGKAIGVL TSGGDAQGMN AAVRAVVRMG IYVGAKVYFI
    61  YEGYQGMVDG GSNIAEADWE SVSSILQVGG TIIGSARCQA FRTREGRLKA ACNLLQRGIT
   121  NLCVIGGDGS LTGANLFRKE WSGLLEELAR NGQIDKEAVQ KYAYLNVVGM VGSIDNDFCG
   181  TDMTIGTDSA LHRIIEVVDA IMTTAQSHQR TFVLEVMGRH CGYLALVSAL ACGADWVFLP
   241  ESPPEEGWEE QMCVKLSENR ARKKRLNIII VAEGAIDTQN KPITSEKIKE LVVTQLGYDT
   301  RVTILGHVQR GGTPSAFDRI LASRMGVEAV IALLEATPDT PACVVSLNGN HAVRLPLMEC
   361  VQMTQDVQKA MDERRFQDAV RLRGRSFAGN LNTYKRLAIK LPDDQIPKTN CNVAVINVGA
   421  PAAGMNAAVR SAVRVGIADG HRMLAIYDGF DGFAKGQIKE IGWTDVGGWT GQGGSILGTK
   481  RVLPGKYLEE IATQMRTHSI NALLIIGGFE AYLGLLELSA AREKHEEFCV PMVMVPATVS
   541  NNVPGSDFSI GADTALNTIT DTCDRIKQSA SGTKRRVFII ETMGGYCGYL ANMGGLAAGA
   601  DAAYIFEEPF DIRDLQSNVE HLTEKMKTTI QRGLVLRNES CSENYTTDFI YQLYSEEGKG
   661  VFDCRKNVLG HMQQGGAPSP FDRNFGTKIS ARAMEWITAK LKEARGRGKK FTTDDSICVL
   721  GISKRNVIFQ PVAELKKQTD FEHRIPKEQW WLKLRPLMKI LAKYKASYDV SDSGQLEHVQ
   781  PWSV

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against PFKP 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)
0.21
Highest tissue expression
250 nTPM

Expression across tissuesHPA

Tissue

  • retina: 250 nTPM
  • choroid plexus: 130 nTPM
  • heart muscle: 120 nTPM
  • testis: 120 nTPM
  • cerebral cortex: 97 nTPM
  • blood vessel: 75 nTPM

Single-cell type

  • late spermatids: 288 nCPM
  • late primary spermatocytes: 241 nCPM
  • early spermatids: 202 nCPM
  • müller glia: 186 nCPM
  • conjunctival goblet cells: 164 nCPM
  • rod photoreceptor cells: 145 nCPM

Immune cell

  • T-reg: 38 nTPM
  • basophil: 31 nTPM
  • NK-cell: 27 nTPM
  • gdT-cell: 27 nTPM
  • memory CD4 T-cell: 26 nTPM
  • memory CD8 T-cell: 25 nTPM

Brain region

  • hypothalamus: 222 nTPM
  • pons: 213 nTPM
  • choroid plexus: 211 nTPM
  • hippocampal formation: 209 nTPM
  • midbrain: 194 nTPM
  • cerebral cortex: 186 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)
1.15
gnomAD pLI
0
gnomAD missense Z
-0.01
DepMap mean gene effect
0.05
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

Molecular functions

Cellular components

Protein domainsUniProt · Pfam · InterPro

KeywordsUniProt

InteractionsUniProt · HPA

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

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

Canonical record: https://seroatlas.com/gene/PFKP. 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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