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Recombinant human DPP9 protein is a Human Full Length protein, expressed in Baculovirus infected Sf9, with >70% purity and suitable for SDS-PAGE, FuncS.

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Publications

Key facts

Purity
>70% SDS-PAGE
Expression system
Baculovirus infected Sf9 cells
Tags
Tag free
Applications
SDS-PAGE, FuncS
Biologically active
Yes

Reactivity data

Application
SDS-PAGE
Reactivity
Reacts
Dilution info
-
Notes

-

Application
FuncS
Reactivity
Reacts
Dilution info
-
Notes

-

Target data

Function

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).

Alternative names

Recommended products

Recombinant human DPP9 protein is a Human Full Length protein, expressed in Baculovirus infected Sf9, with >70% purity and suitable for SDS-PAGE, FuncS.

Key facts

Purity
>70% SDS-PAGE
Expression system
Baculovirus infected Sf9 cells
Applications
SDS-PAGE, FuncS
Biological activity
Specific Activity: 536 U/ug. One U =1 pmol/min.
Accession
Q86TI2-1
Animal free
No
Species
Human
Concentration
Loading...
Storage buffer

pH: 8
Constituents: 50% Glycerol (glycerin, glycerine), 0.58% Sodium chloride, 0.395% Tris HCl, 0.05% Sorbitan monolaurate, ethoxylated, 0.0462% (R*,R*)-1,4-Dimercaptobutan-2,3-diol

Sequence info

Amino acid sequence

Accession
Q86TI2
Protein length
Full Length
Nature
Recombinant

Specifications

Form
Liquid
Additional notes

Affinity purified.

General info

Function

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).

Sequence similarities

Belongs to the peptidase S9B family. DPPIV subfamily.

Subcellular localisation
Nucleus

Storage

Shipped at conditions
Dry Ice
Appropriate short-term storage conditions
-80°C
Appropriate long-term storage conditions
-80°C
Aliquoting information
Upon delivery aliquot
Storage information
Avoid freeze / thaw cycle

This product is an active protein and may elicit a biological response in vivo, handle with caution.

Supplementary info

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

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.

Associated diseases and disorders

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.

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