Descriptions

Pyruvate kinase M2 (PKM2) plays a vital role in glycolysis, and it catalyzes the conversion of phosphoenolpyruvate to pyruvate with the production of ATP in the final reaction of glycolysis. PKM2 provides an in vivo growth advantage in cancer cells. Pyruvate Kinase isozymes type PKM1, PKL, and PKR exist in unstable and high-activity tetramer forms, whereas PKM2 is found in both a highly active tetramer form and a low-activity dimer form. The switch between dimer and tetramer is allosterically modulated by the binding of ligands such as amino acids and metabolic intermediates to the regulatory C-terminal domain. Post-translational modifications at specific residues relieve this inhibition, allowing metabolic flux.

Autoinhibitory domains (AIDs)

Target domain

43-375 (Pyruvate kinase)

Relief mechanism

PTM, Partner binding

Assay

Accessory elements

No accessory elements

Autoinhibited structure

Activated structure

2 structures for P11979

Entry ID Method Resolution Chain Position Source
1PKM X-ray 260 A A 2-531 PDB
AF-P11979-F1 Predicted AlphaFoldDB

No variants for P11979

Variant ID(s) Position Change Description Diseaes Association Provenance
No variants for P11979

No associated diseases with P11979

13 regional properties for P11979

Type Name Position InterPro Accession
domain Receptor L-domain 47 - 157 IPR000494-1
domain Receptor L-domain 346 - 455 IPR000494-2
domain Protein kinase domain 979 - 1254 IPR000719
domain Serine-threonine/tyrosine-protein kinase, catalytic domain 980 - 1245 IPR001245
conserved_site Tyrosine-protein kinase, receptor class II, conserved site 1139 - 1147 IPR002011
domain Fibronectin type III 483 - 603 IPR003961-1
domain Fibronectin type III 605 - 798 IPR003961-2
domain Fibronectin type III 816 - 913 IPR003961-3
domain Furin-like cysteine-rich domain 174 - 329 IPR006211
repeat Furin-like repeat 225 - 275 IPR006212
active_site Tyrosine-protein kinase, active site 1111 - 1123 IPR008266
binding_site Protein kinase, ATP binding site 985 - 1013 IPR017441
domain Tyrosine-protein kinase, catalytic domain 979 - 1246 IPR020635

Functions

Description
EC Number 2.7.1.40 Phosphotransferases with an alcohol group as acceptor
Subcellular Localization
  • [Isoform M2]: Cytoplasm
  • Nucleus
  • Translocates to the nucleus in response to various signals, such as EGF receptor activation or apoptotic stimuli
PANTHER Family
PANTHER Subfamily
PANTHER Protein Class
PANTHER Pathway Category No pathway information available

3 GO annotations of cellular component

Name Definition
cytoplasm The contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
nucleus A membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent.
rough endoplasmic reticulum The rough (or granular) endoplasmic reticulum (ER) has ribosomes adhering to the outer surface; the ribosomes are the site of translation of the mRNA for those proteins which are either to be retained within the cisternae (ER-resident proteins), the proteins of the lysosomes, or the proteins destined for export from the cell. Glycoproteins undergo their initial glycosylation within the cisternae.

6 GO annotations of molecular function

Name Definition
ATP binding Binding to ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.
magnesium ion binding Binding to a magnesium (Mg) ion.
mRNA binding Binding to messenger RNA (mRNA), an intermediate molecule between DNA and protein. mRNA includes UTR and coding sequences, but does not contain introns.
potassium ion binding Binding to a potassium ion (K+).
protein tyrosine kinase activity Catalysis of the reaction
pyruvate kinase activity Catalysis of the reaction

5 GO annotations of biological process

Name Definition
cellular response to insulin stimulus Any process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of an insulin stimulus. Insulin is a polypeptide hormone produced by the islets of Langerhans of the pancreas in mammals, and by the homologous organs of other organisms.
glycolytic process The chemical reactions and pathways resulting in the breakdown of a carbohydrate into pyruvate, with the concomitant production of a small amount of ATP and the reduction of NAD(P) to NAD(P)H. Glycolysis begins with the metabolism of a carbohydrate to generate products that can enter the pathway and ends with the production of pyruvate. Pyruvate may be converted to acetyl-coenzyme A, ethanol, lactate, or other small molecules.
phosphorylation The process of introducing a phosphate group into a molecule, usually with the formation of a phosphoric ester, a phosphoric anhydride or a phosphoric amide.
positive regulation of cytoplasmic translation Any process that activates or increases the frequency, rate or extent of cytoplasmic translation.
positive regulation of sprouting angiogenesis Any process that activates or increases the frequency, rate or extent of sprouting angiogenesis.

12 homologous proteins in AiPD

UniProt AC Gene Name Protein Name Species Evidence Code
P52489 PYK2 Pyruvate kinase 2 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) SS
P00549 CDC19 Pyruvate kinase 1 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) SS
P00548 PKM Pyruvate kinase PKM Gallus gallus (Chicken) SS
Q29536 PKLR Pyruvate kinase PKLR Canis lupus familiaris (Dog) (Canis familiaris) SS
O62619 PyK Pyruvate kinase Drosophila melanogaster (Fruit fly) SS
P14618 PKM Pyruvate kinase PKM Homo sapiens (Human) EV
P30613 PKLR Pyruvate kinase PKLR Homo sapiens (Human) SS
P53657 Pklr Pyruvate kinase PKLR Mus musculus (Mouse) SS
P52480 Pkm Pyruvate kinase PKM Mus musculus (Mouse) SS
P12928 Pklr Pyruvate kinase PKLR Rattus norvegicus (Rat) SS
P11980 Pkm Pyruvate kinase PKM Rattus norvegicus (Rat) SS
Q9LIK0 PKP1 Plastidial pyruvate kinase 1, chloroplastic Arabidopsis thaliana (Mouse-ear cress) PR
10 20 30 40 50 60
MSKPHSDVGT AFIQTQQLHA AMADTFLEHM CRLDIDSPPI TARNTGIICT IGPASRSVEI
70 80 90 100 110 120
LKEMIKSGMN VARLNFSHGT HEYHAETIKN VRAATESFAS DPIRYRPVAV ALDTKGPEIR
130 140 150 160 170 180
TGLIKGSGTA EVELKKGATL KITLDNAYME KCDENVLWLD YKNICKVVEV GSKVYVDDGL
190 200 210 220 230 240
ISLLVKEKGA DFLVTEVENG GSLGSKKGVN LPGAAVDLPA VSEKDIQDLK FGVEQDVDMV
250 260 270 280 290 300
FASFIRKASD VHEVRKVLGE KGKNIKIISK IENHEGVRRF DEILEASDGI MVARGDLGIE
310 320 330 340 350 360
IPAEKVFLAQ KMMIGRCNRA GKPVICATQM LESMIKKPRP TRAEGSDVAN AVLDGADCIM
370 380 390 400 410 420
LSGETAKGDY PLEAVRMQHL IAREAEAAMF HRKLFEELVR GSSHSTDLME AMAMGSVEAS
430 440 450 460 470 480
YKCLAAALIV LTESGRSAHQ VARYRPRAPI IAVTRNHQTA RQAHLYRGIF PVVCKDPVQE
490 500 510 520 530
AWAEDVDLRV NLAMNVGKAR GFFKHGDVVI VLTGWRPGSG FTNTMRVVPV P