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 PWSVLocalizationUniProt · 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
- canonical glycolysis
- cellular response to leukemia inhibitory factor
- fructose 1,6-bisphosphate metabolic process
- fructose 6-phosphate metabolic process
Molecular functions
- 6-phosphofructokinase activity
- ATP binding
- cadherin binding
- fructose-6-phosphate binding
- identical protein binding
- metal ion binding
- protein-containing complex binding
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.
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