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AB42080

Anti-DPP9 antibody - Catalytic domain

4

(7 Reviews)

|

(39 Publications)

Rabbit Polyclonal DPP9 antibody. Suitable for WB, IHC-P, ICC/IF and reacts with Human, Cow samples. Cited in 39 publications. Immunogen corresponding to Synthetic Peptide within Human DPP9.

View Alternative Names

DPRP2, DPP9, Dipeptidyl peptidase 9, DP9, Dipeptidyl peptidase IV-related protein 2, Dipeptidyl peptidase IX, Dipeptidyl peptidase-like protein 9, DPRP-2, DPP IX, DPLP9

3 Images
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-DPP9 antibody - Catalytic domain (AB42080)
  • IHC-P

Unknown

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-DPP9 antibody - Catalytic domain (AB42080)

ab42080 staining Human normal placenta. Staining is localised to the membrane and cytoplasm.
Left panel : with primary antibody at 4 ug/ml. Right panel : isotype control.
Sections were stained using an automated system DAKO Autostainer Plus , at room temperature. Sections were rehydrated and antigen retrieved with the Dako 3-in-1 AR buffers EDTA pH 9.0 in a DAKO PT Link. Slides were peroxidase blocked in 3% H2O2 in methanol for 10 minutes. They were then blocked with Dako Protein block for 10 minutes (containing casein 0.25% in PBS) then incubated with primary antibody for 20 minutes and detected with Dako Envision Flex amplification kit for 30 minutes. Colorimetric detection was completed with diaminobenzidine for 5 minutes. Slides were counterstained with Haematoxylin and coverslipped under DePeX. Please note that for manual staining we recommend to optimize the primary antibody concentration and incubation time (overnight incubation), and amplification may be required.

Immunocytochemistry/ Immunofluorescence - Anti-DPP9 antibody - Catalytic domain (AB42080)
  • ICC/IF

Unknown

Immunocytochemistry/ Immunofluorescence - Anti-DPP9 antibody - Catalytic domain (AB42080)

ICC/IF image of ab42080 stained Hek293 cells. The cells were 100% methanol fixed (5 min) and then incubated in 1%BSA / 10% normal goat serum / 0.3M glycine in 0.1% PBS-Tween for 1h to permeabilise the cells and block non-specific protein-protein interactions. The cells were then incubated with the antibody (ab42080, 1µg/ml) overnight at +4°C. The secondary antibody (green) was Alexa Fluor® 488 goat anti-rabbit IgG (H+L) used at a 1/1000 dilution for 1h. Alexa Fluor® 594 WGA was used to label plasma membranes (red) at a 1/200 dilution for 1h. DAPI was used to stain the cell nuclei (blue) at a concentration of 1.43µM.

Western blot - Anti-DPP9 antibody - Catalytic domain (AB42080)
  • WB

Unknown

Western blot - Anti-DPP9 antibody - Catalytic domain (AB42080)

All lanes:

Western blot - Anti-DPP9 antibody - Catalytic domain (ab42080) at 1/1000 dilution

Lane 1:

Cell media from human prostate cancer DU145 cells (treated with SF)

Lane 2:

Cell media from human prostate cancer DU145 cells (treated with RA)

Lane 3:

Cell media from human prostate cancer DU145 cells (treated with IL1-beta)

Predicted band size: 98 kDa

false

Key facts

Host species

Rabbit

Clonality

Polyclonal

Isotype

IgG

Carrier free

No

Reacts with

Cow, Human

Applications

IHC-P, ICC/IF, WB

applications

Immunogen

Synthetic Peptide within Human DPP9. The exact immunogen used to generate this antibody is proprietary information.

Q86TI2

Specificity

This antibody recognises all three forms of DPP9. This antibody does not recognise other DPP family members.

Reactivity data

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Properties and storage information

Form
Liquid
Purification technique
Affinity purification Immunogen
Storage buffer
Preservative: 0.05% Sodium azide Constituents: PBS, 50% Glycerol (glycerin, glycerine), 2.9% Sodium chloride
Shipped at conditions
Blue Ice
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.

Dipeptidyl peptidase 9 (DPP9) is an intracellular serine protease belonging to the S9B family primarily recognized for its enzymatic function of cleaving dipeptides from polypeptides. It is known alternatively as DPPIV-like protease with a molecular weight of approximately 92 kDa. DPP9 is expressed in multiple tissues with higher levels seen in the liver kidney and lung. Its role is critical for processing proteins influencing their maturation and function.
Biological function summary

DPP9 acts in several processes beyond simple protease activity. It modulates antigen presentation and immune responses. It functions mainly intracellularly and is not typically secreted. While DPP9 does not form stable complexes with other proteins it does interact dynamically with several cellular proteins to perform its roles. Its enzyme activity can regulate peptide hormones and chemokines implicating it in immune modulation.

Pathways

DPP9 plays roles in the regulation of insulin signaling and immune system pathways. It modulates the activity of proteins like fibroblast growth factor (FGF) and is directly involved in the processing of bioactive peptides related to the immune response. DPP9 shares functional traits with DPP8 another member of the dipeptidyl peptidase family which also cleaves similar substrates and participates in overlapping pathways.

DPP9 is implicated in certain cancers and inflammatory diseases. For instance its dysregulation correlates with hepatocellular carcinoma. High DPP9 expression is also linked to inflammatory diseases where immune system alterations are pronounced. DPP4 a related enzyme also participates in these conditions highlighting potential therapeutic intervention points targeting both DPP9 and DPP4.

Product protocols

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

Target data

Dipeptidyl peptidase that cleaves off N-terminal dipeptides from proteins having a Pro or Ala residue at position 2 (PubMed : 12662155, PubMed : 16475979, PubMed : 19667070, PubMed : 29382749, PubMed : 30291141, PubMed : 33731929, PubMed : 36112693). Acts as a key inhibitor of caspase-1-dependent monocyte and macrophage pyroptosis in resting cells by preventing activation of NLRP1 and CARD8 (PubMed : 27820798, PubMed : 29967349, PubMed : 30291141, PubMed : 31525884, PubMed : 32796818, PubMed : 36112693, PubMed : 36357533). Sequesters the cleaved C-terminal part of NLRP1 and CARD8, which respectively constitute the active part of the NLRP1 and CARD8 inflammasomes, in a ternary complex, thereby preventing their oligomerization and activation (PubMed : 33731929, PubMed : 33731932, PubMed : 34019797). The dipeptidyl peptidase activity is required to suppress NLRP1 and CARD8; however, neither NLRP1 nor CARD8 are bona fide substrates of DPP9, suggesting the existence of substrate(s) required for NLRP1 and CARD8 inhibition (PubMed : 33731929).
See full target information DPP9

Publications (39)

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

European journal of immunology 55:e51526 PubMed40498275

2025

Dipeptidyl Peptidase 9 in Human Leukocytes: Novel Inhibitors Induce Caspase-1- and Gasdermin-Dependent Cell Death.

Applications

Unspecified application

Species

Unspecified reactive species

Joni De Loose,Kathleen Mertens,Nicolò Filippi,Sam Corthaut,Siham Benramdane,Yani Sim,Yentl Van Rymenant,Karen Claesen,Gwendolyn Vliegen,Maya Berg,Tiphanie Gomard,Guy Caljon,Isabel Pintelon,Pieter Van Der Veken,Ingrid De Meester

The Journal of biological chemistry 301:108034 PubMed39615677

2024

The serine protease DPP9 and the redox sensor KEAP1 form a mutually inhibitory complex.

Applications

Unspecified application

Species

Unspecified reactive species

Lydia P Tsamouri,Jeffrey C Hsiao,Daniel A Bachovchin

Journal of advanced research 74:225-236 PubMed39369958

2024

Hippocampal dipeptidyl peptidase 9 bidirectionally regulates memory associated with synaptic plasticity.

Applications

Unspecified application

Species

Unspecified reactive species

Ya-Bo Zhao,Shi-Zhe Wang,Wen-Ting Guo,Le Wang,Xun Tang,Jin-Nan Li,Lin Xu,Qi-Xin Zhou

Cell chemical biology 31:955-961.e4 PubMed38215746

2024

The interaction between NLRP1 and oxidized TRX1 involves a transient disulfide bond.

Applications

Unspecified application

Species

Unspecified reactive species

Michael B Geeson,Jeffrey C Hsiao,Lydia P Tsamouri,Daniel P Ball,Daniel A Bachovchin

Cells 12: PubMed37626841

2023

Dipeptidyl-Aminopeptidases 8 and 9 Regulate Autophagy and Tamoxifen Response in Breast Cancer Cells.

Applications

Unspecified application

Species

Unspecified reactive species

Aaron Bettecken,Lisa Heß,Lena Hölzen,Thomas Reinheckel

The Journal of allergy and clinical immunology 152:1336-1344.e5 PubMed37544411

2023

Hemophagocytic lymphohistiocytosis-like hyperinflammation due to a de novo mutation in DPP9.

Applications

Unspecified application

Species

Unspecified reactive species

Christine Wolf,Hannah Fischer,Jörn-Sven Kühl,Sarah Koss,Rami Abou Jamra,Sven Starke,Jurek Schultz,Stephan Ehl,Katrin Neumann,Catharina Schuetz,Robert Huber,Veit Hornung,Min Ae Lee-Kirsch

Journal of medicinal chemistry 66:2589-2607 PubMed36724486

2023

Optimized M24B Aminopeptidase Inhibitors for CARD8 Inflammasome Activation.

Applications

Unspecified application

Species

Unspecified reactive species

Qifeng Chen,Alvin Wang,Dominic J Covelli,Abir Bhattacharjee,Qinghui Wang,Elizabeth L Orth-He,Sahana D Rao,Hsin-Che Huang,Daniel P Ball,Jeffrey C Hsiao,Daniel A Bachovchin

Nature chemical biology 19:431-439 PubMed36357533

2022

Chemical inhibition of DPP9 sensitizes the CARD8 inflammasome in HIV-1-infected cells.

Applications

Unspecified application

Species

Unspecified reactive species

Kolin M Clark,Josh G Kim,Qiankun Wang,Hongbo Gao,Rachel M Presti,Liang Shan

Science immunology 7:eabm7200 PubMed36332009

2022

Oxidized thioredoxin-1 restrains the NLRP1 inflammasome.

Applications

Unspecified application

Species

Unspecified reactive species

Daniel P Ball,Lydia P Tsamouri,Alvin E Wang,Hsin-Che Huang,Charles D Warren,Qinghui Wang,Isabelle H Edmondson,Andrew R Griswold,Sahana D Rao,Darren C Johnson,Daniel A Bachovchin

The Journal of biological chemistry 298:102645 PubMed36309085

2022

Inflammasome sensor NLRP1 disease variant M1184V promotes autoproteolysis and DPP9 complex formation by stabilizing the FIIND domain.

Applications

Unspecified application

Species

Unspecified reactive species

Jonas Moecking,Pawat Laohamonthonkul,Kubilay Meşe,Gregor Hagelueken,Annemarie Steiner,Cassandra R Harapas,Jarrod J Sandow,Jonathan D Graves,Seth L Masters,Matthias Geyer
View all publications

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