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AB137791

Anti-PKM antibody

5

(6 Reviews)

|

(26 Publications)

Rabbit Polyclonal KPYM antibody. Suitable for ICC/IF, IHC-P, IP, WB and reacts with Human, Mouse, Rat samples. Cited in 26 publications. Immunogen corresponding to Recombinant Fragment Protein within Human PKM aa 200 to C-terminus.

View Alternative Names

OIP3, PK2, PK3, PKM2, PKM, Pyruvate kinase PKM, Cytosolic thyroid hormone-binding protein, Opa-interacting protein 3, Pyruvate kinase 2/3, Pyruvate kinase muscle isozyme, Threonine-protein kinase PKM2, Thyroid hormone-binding protein 1, Tumor M2-PK, Tyrosine-protein kinase PKM2, p58, CTHBP, OIP-3, THBP1

9 Images
Immunocytochemistry/ Immunofluorescence - Anti-PKM antibody (AB137791)
  • ICC/IF

Supplier Data

Immunocytochemistry/ Immunofluorescence - Anti-PKM antibody (AB137791)

Immunofluorescence analysis of HeLa cells fixed in 4% paraformaldehyde at RT for 15 min labelling PKM protein at cytoplasm using ab137791 at a 1/500 dilution (Green). DAPI was used for nuclear staining.

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-PKM antibody (AB137791)
  • IHC-P

Supplier Data

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-PKM antibody (AB137791)

Immunohistochemical analysis of paraffin-embedded human lung carcinoma tissue staining PKM protein at cytosol with ab137791 at 1/500 dilution. Antigen Retrieval : EDTA based buffer, pH 8.0, 15min.

Immunoprecipitation - Anti-PKM antibody (AB137791)
  • IP

Supplier Data

Immunoprecipitation - Anti-PKM antibody (AB137791)

Immunoprecipitation of PKM protein from 293T whole cell extracts using 5 µg of PKM antibody.
Western blot analysis was performed using PKM antibody.

All lanes:

Immunoprecipitation - Anti-PKM antibody (ab137791) at 5 µg

Lane 1:

293T whole cell extracts (input)

Lane 2:

293T whole cell extracts with control (-)

Lane 3:

293T whole cell extracts (+)

Secondary

All lanes:

HRP-conjugated anti-rabbit IgG antibody

Observed band size: 55 kDa

false

Immunoprecipitation - Anti-PKM antibody (AB137791)
  • IP

Supplier Data

Immunoprecipitation - Anti-PKM antibody (AB137791)

Immunofluorescence analysis of 4% paraformaldehyde-fixed HeLa (human epithelial cell line from cervix adenocarcinoma) whole cell labelling Pyruvate Kinase (muscle) antibody detects Pyruvate Kinase (muscle) protein at cytoplasm (green) with ab137791 at 1/500 dilution. Red : alpha Tubulin, a cytoskeleton marker, stained by alpha Tubulin antibody at 1/500 dilution. Blue : Hoechst 33342 staining.

All lanes:

Immunoprecipitation - Anti-PKM antibody (ab137791)

Predicted band size: 58 kDa

false

Western blot - Anti-PKM antibody (AB137791)
  • WB

Supplier Data

Western blot - Anti-PKM antibody (AB137791)

7.5% SDS-PAGE

All lanes:

Western blot - Anti-PKM antibody (ab137791) at 1/5000 dilution

Lane 1:

Non-transfected (-) HEK-293T (human epithelial cell line from embryonic kidney transformed with large T antigen) whole cell lysate at 30 µg

Lane 2:

HEK-293T whole cell extracts transfected (+) with PKM shRNA at 30 µg

Secondary

All lanes:

HRP-conjugated anti-rabbit IgG antibody

Predicted band size: 58 kDa

false

Western blot - Anti-PKM antibody (AB137791)
  • WB

Supplier Data

Western blot - Anti-PKM antibody (AB137791)

7.5% SDS-PAGE

All lanes:

Western blot - Anti-PKM antibody (ab137791) at 1/1000 dilution

Lane 1:

HEK-293T (human epithelial cell line from embryonic kidney transformed with large T antigen) whole cell lysate at 30 µg

Lane 2:

A431 (human epidermoid carcinoma cell line) whole cell lysate at 30 µg

Lane 3:

HeLa (human epithelial cell line from cervix adenocarcinoma) whole cell lysate at 30 µg

Lane 4:

HepG2 (human liver hepatocellular carcinoma cell line) whole cell lysate at 30 µg

Secondary

All lanes:

HRP-conjugated anti-rabbit IgG antibody

Predicted band size: 58 kDa

false

Western blot - Anti-PKM antibody (AB137791)
  • WB

Supplier Data

Western blot - Anti-PKM antibody (AB137791)

Samples were separated by 10% SDS-PAGE.

All lanes:

Western blot - Anti-PKM antibody (ab137791) at 1/1000 dilution

Lane 1:

293T whole cell extracts at 30 µg

Lane 2:

A431 whole cell extracts at 30 µg

Lane 3:

HeLa whole cell extracts at 30 µg

Lane 4:

HepG2 whole cell extracts at 30 µg

Secondary

All lanes:

HRP-conjugated anti-rabbit IgG

Observed band size: 55 kDa

false

Western blot - Anti-PKM antibody (AB137791)
  • WB

Supplier Data

Western blot - Anti-PKM antibody (AB137791)

Samples were separated by 10% SDS-PAGE.

All lanes:

Western blot - Anti-PKM antibody (ab137791) at 1/3000 dilution

Lane 1:

Mouse brain tissue extracts at 50 µg

Lane 2:

Rat brain tissue extracts at 50 µg

Secondary

All lanes:

HRP-conjugated anti-rabbit IgG

Observed band size: 55 kDa

false

Western blot - Anti-PKM antibody (AB137791)
  • WB

Supplier Data

Western blot - Anti-PKM antibody (AB137791)

7.5% SDS-PAGE

All lanes:

Western blot - Anti-PKM antibody (ab137791) at 1/5000 dilution

Lane 1:

Non-transfected (–) HEK-293T (human epithelial cell line from embryonic kidney transformed with large T antigen) whole cell lysate at 30 µg

Lane 2:

Transfected (+) HEK-293T whole cell lysate at 30 µg

Secondary

All lanes:

HRP-conjugated anti-rabbit IgG antibody

Predicted band size: 58 kDa

false

Key facts

Host species

Rabbit

Clonality

Polyclonal

Isotype

IgG

Carrier free

No

Reacts with

Mouse, Rat, Human

Applications

WB, IP, ICC/IF, IHC-P

applications

Immunogen

Recombinant Fragment Protein within Human PKM aa 200 to C-terminus. The exact immunogen used to generate this antibody is proprietary information.

P14618

Reactivity data

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Properties and storage information

Form
Liquid
Purification technique
Affinity purification Immunogen
Storage buffer
pH: 7 Preservative: 0.025% Proclin 300 Constituents: PBS, 20% Glycerol (glycerin, glycerine)
Shipped at conditions
Blue Ice
Appropriate short-term storage duration
1-2 weeks
Appropriate short-term storage conditions
+4°C
Appropriate long-term storage conditions
-20°C
Aliquoting information
Upon delivery aliquot
Storage information
Avoid freeze / thaw cycle

Supplementary information

This supplementary information is collated from multiple sources and compiled automatically.

PKM also known as pyruvate kinase muscle isozyme (PKM) and PEP is an enzyme that plays an important role in glycolysis by catalysing the conversion of phosphoenolpyruvate (PEP) to pyruvate yielding ATP in the process. The PKM protein has two isoforms PKM1 and PKM2 which result from alternative splicing of the PKM gene. The mass of PKM2 the more studied isoform is approximately 58 kDa. PKM is expressed in various tissues prominently in skeletal muscle heart brain and many tumor cells. Additionally PKM has significant activity in rapidly proliferating cells suggesting its importance in high-energy demanding environments.
Biological function summary

PKM functions not only in catalyzing the last step of glycolysis but also regulates metabolic and transcriptional processes. Specifically PKM2 is a participant in the regulation of gene expression and cellular response to oxidative stress and nutrient availability. It can exist as a dimer or tetramer with the latter being the more active form in glycolytic pathways while the dimeric form can translocate to the nucleus to perform functions unrelated to its glycolytic activity. These transformations make PKM part of a dynamic complex that responds to various cellular signals.

Pathways

PKM integrates into essential metabolic pathways including the glycolytic pathway and influences the pentose phosphate pathway. It works in conjunction with phosphofructokinase-1 (PFK1) another key glycolytic enzyme synchronizing the energy production process in cells. PKM2's non-metabolic roles involve interactions in signaling pathways related to cellular proliferation and survival often interacting with and modulating proteins like HIF-1α which plays a central role in cellular responses to hypoxia.

PKM2 shows strong connections to cancer and metabolic diseases. Tumor cells often exhibit a shift in expression from PKM1 to PKM2 facilitating the altered metabolism known as the Warburg effect characterized by increased aerobic glycolysis. Its interaction with HIF-1α promotes adaptation to low oxygen environments typical in tumorous growth. Furthermore PKM disruptions or aberrations contribute to metabolic disorders such as diabetes where altered glucose metabolism becomes evident. The protein's behavior in these disease conditions indicates potential targets for therapeutic intervention highlighting the importance of PKM in both normal physiology and pathology.

Product protocols

For this product, it's our understanding that no specific protocols are required. You can visit:

Target data

Catalyzes the final rate-limiting step of glycolysis by mediating the transfer of a phosphoryl group from phosphoenolpyruvate (PEP) to ADP, generating ATP (PubMed : 15996096, PubMed : 1854723, PubMed : 20847263). The ratio between the highly active tetrameric form and nearly inactive dimeric form determines whether glucose carbons are channeled to biosynthetic processes or used for glycolytic ATP production (PubMed : 15996096, PubMed : 1854723, PubMed : 20847263). The transition between the 2 forms contributes to the control of glycolysis and is important for tumor cell proliferation and survival (PubMed : 15996096, PubMed : 1854723, PubMed : 20847263).. Isoform M2. Isoform specifically expressed during embryogenesis that has low pyruvate kinase activity by itself and requires allosteric activation by D-fructose 1,6-bisphosphate (FBP) for pyruvate kinase activity (PubMed : 18337823, PubMed : 20847263). In addition to its pyruvate kinase activity in the cytoplasm, also acts as a regulator of transcription in the nucleus by acting as a protein kinase (PubMed : 18191611, PubMed : 21620138, PubMed : 22056988, PubMed : 22306293, PubMed : 22901803, PubMed : 24120661). Translocates into the nucleus in response to various signals, such as EGF receptor activation, and homodimerizes, leading to its conversion into a protein threonine- and tyrosine-protein kinase (PubMed : 22056988, PubMed : 22306293, PubMed : 22901803, PubMed : 24120661, PubMed : 26787900). Catalyzes phosphorylation of STAT3 at 'Tyr-705' and histone H3 at 'Thr-11' (H3T11ph), leading to activate transcription (PubMed : 22306293, PubMed : 22901803, PubMed : 24120661). Its ability to activate transcription plays a role in cancer cells by promoting cell proliferation and promote tumorigenesis (PubMed : 18337823, PubMed : 22901803, PubMed : 26787900). Promotes the expression of the immune checkpoint protein CD274 in BMAL1-deficient macrophages (By similarity). May also act as a translation regulator for a subset of mRNAs, independently of its pyruvate kinase activity : associates with subpools of endoplasmic reticulum-associated ribosomes, binds directly to the mRNAs translated at the endoplasmic reticulum and promotes translation of these endoplasmic reticulum-destined mRNAs (By similarity). Plays a role in caspase independent cell death of tumor cells (PubMed : 17308100).. Isoform M1. Pyruvate kinase isoform expressed in adult tissues, which replaces isoform M2 after birth (PubMed : 18337823). In contrast to isoform M2, has high pyruvate kinase activity by itself and does not require allosteric activation by D-fructose 1,6-bisphosphate (FBP) for activity (PubMed : 20847263).
See full target information PKM

Publications (26)

Recent publications for all applications. Explore the full list and refine your search

Discover oncology 16:131 PubMed39920513

2025

LAMB1 downregulation suppresses glioma progression by inhibiting aerobic glycolysis through regulation of the NF-κB/HK2 axis.

Applications

Unspecified application

Species

Unspecified reactive species

Zhenxiang Zhao,Haiying Liu,Yingzi Liu,Junpeng Wen,Jiangwei Yuan

Cancer & metabolism 12:32 PubMed39462429

2024

RHOF promotes Snail1 lactylation by enhancing PKM2-mediated glycolysis to induce pancreatic cancer cell endothelial-mesenchymal transition.

Applications

Unspecified application

Species

Unspecified reactive species

Rui Zhao,Yanmin Yi,Han Liu,Jianwei Xu,Shuhai Chen,Dong Wu,Lei Wang,Feng Li

Biomarker research 12:58 PubMed38840205

2024

Single-cell and spatial transcriptomics reveal a high glycolysis B cell and tumor-associated macrophages cluster correlated with poor prognosis and exhausted immune microenvironment in diffuse large B-cell lymphoma.

Applications

Unspecified application

Species

Unspecified reactive species

Liyuan Dai,Guangyu Fan,Tongji Xie,Lin Li,Le Tang,Haizhu Chen,Yuankai Shi,Xiaohong Han

Immunology 172:469-485 PubMed38544333

2024

The dysfunction of CD8 T cells triggered by endometriotic stromal cells promotes the immune survival of endometriosis.

Applications

Unspecified application

Species

Unspecified reactive species

Zhi-Xiong Huang,Dian-Chao Lin,Hua-Ying Zhang,Meng-Jie Yang,Jia-Hao Chen,Xin-Yu Ding,Song-Juan Dai,Yi-Huang Hong,Gui-Shuang Liang,Qi-Yuan Li,Qiong-Hua Chen

PloS one 18:e0290892 PubMed37651389

2023

Biochemical evidence that the whole compartment activity behavior of GAPDH differs between the cytoplasm and nucleus.

Applications

Unspecified application

Species

Unspecified reactive species

Helen S Tang,Chelsea R Gates,Michael C Schultz

Journal of proteome research 22:2436-2449 PubMed37311110

2023

Species-Deconvolved Proteomics for Investigation of Tumor-Stroma Interactions after Treatment of Pancreatic Cancer Patient-Derived Xenografts with Combined Gemcitabine and Paclitaxel.

Applications

Unspecified application

Species

Unspecified reactive species

Xue Wang,Jin Niu,Shuo Qian,Shichen Shen,Robert M Straubinger,Jun Qu

Journal of assisted reproduction and genetics 40:343-359 PubMed36593322

2023

Granulosa cells from immature follicles exhibit restricted glycolysis and reduced energy production: a dominant problem in polycystic ovary syndrome.

Applications

Unspecified application

Species

Unspecified reactive species

Sahar Mazloomi,Marzieh Sanoee Farimani,Heidar Tavilani,Jamshid Karimi,Iraj Amiri,Ebrahim Abbasi,Iraj Khodadadi

Molecules and cells 45:550-563 PubMed35950456

2022

Downregulation of SETD5 Suppresses the Tumorigenicity of Hepatocellular Carcinoma Cells.

Applications

Unspecified application

Species

Unspecified reactive species

Mijin Park,Byul Moon,Jong-Hwan Kim,Seung-Jin Park,Seon-Kyu Kim,Kihyun Park,Jaehoon Kim,Seon-Young Kim,Jeong-Hoon Kim,Jung-Ae Kim

Cell death & disease 13:594 PubMed35821123

2022

Mitochondrial PKM2 deacetylation by procyanidin B2-induced SIRT3 upregulation alleviates lung ischemia/reperfusion injury.

Applications

Unspecified application

Species

Unspecified reactive species

Jing Zhao,Guorong Wang,Kaitao Han,Yang Wang,Lin Wang,Jinxia Gao,Sen Zhao,Gang Wang,Shengyang Chen,An Luo,Jianlin Wu,Guangzhi Wang

Experimental & molecular medicine 54:848-860 PubMed35764883

2022

Hypoxia-induced LncRNA DACT3-AS1 upregulates PKM2 to promote metastasis in hepatocellular carcinoma through the HDAC2/FOXA3 pathway.

Applications

Unspecified application

Species

Unspecified reactive species

Liyan Wang,Bin Li,Xiaotong Bo,Xiaoyuan Yi,Xuhua Xiao,Qinghua Zheng
View all publications

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