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PRS

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By Targets:	Aminoacyl-tRNA Synthetase (2) DNA/RNA Synthesis (1) EGFR (1) Glycosidase (1) HIV (2) TNF Receptor (1)
By Research Areas:	Cancer (2) Infection (2) Inflammation/Immunology (2)

7

Inhibitors & Agonists

2

Peptides

3

Inhibitory Antibodies

4

Recombinant Proteins

Cat. No.	Product Name	Target	Research Areas	Chemical Structure

Cinrebafusp alfa PRS 343	EGFR TNF Receptor	Cancer
Cinrebafusp alfa (PRS 343) is a high affinity CD137/HER2 bispecfic anticalin-based drug. Cinrebafusp alfa binds to recombinant human HER2 (K_d=0.3 nM) and human monomeric CD137 (4-1BB; K_d=5 nM). Cinrebafusp alfa facilitates T-cell costimulation by tumor-localized, HER2-dependent 4-1BB clustering and activation, further enhancing T-cell receptor-mediated activity and leading to tumor destruction. Cinrebafusp alfa has the potential for HER2+ solid tumors research .

Bersiporocin DWN12088	DNA/RNA Synthesis	Inflammation/Immunology
Bersiporocin is a prolyl-tRNA synthetase inhibitor. Bersiporocin has an IC₅₀ of ≤100 nM for phosphoribosylpyrophosphate synthetase (PRS). Bersiporocin can be used for the research of antifibrotic .

PEA-NBOMe hydrochloride	Aminoacyl-tRNA Synthetase	Infection
PEA-NBOMe hydrochloride (Compound 21) is a competitive phenylalanyl-tRNA synthetase (PRS) inhibitor (K_i=0.92 μM), which is found in Escherichia coli. PEA-NBOMe hydrochloride is promising for research of antibacterial or antiviral agents .

Acetyl-pepstatin	HIV	Infection
Acetyl-pepstatin is a potent classical inhibitor of aspartic proteases (PRs) with XMRV PR and HIV-1 PR K_i values of 712 nM and 13 nM .

T-3861174	Aminoacyl-tRNA Synthetase	Cancer
T-3861174 is an inhibitor of prolyl-tRNA synthetase (PRS, Aminoacyl-tRNA Synthetase) without completely inhibiting its translation process. T-3861174 activates the GCN2-ATF4 pathway and induces death in multiple tumor cell lines, including SK-MEL-2. T-3861174 demonstrated significant antitumor activity in multiple xenograft models without significantly affecting body weight .

Clervonafusp alfa VAL-1221	Glycosidase	Others
Clervonafusp alfa (VAL-1221) is a fusion protein targeting both cytosolic and lysosomal glycogen. Clervonafusp alfa is comprised of the Fab portion of a cell-penetrating antibody and recombinant human acid alpha glucosidase (rhGAA), the former utilizing the nucleoside transporter ENT-2 to gain access to the cytosol, and the latter enters lysosomes via mannose-6-phosphate receptors (M6PRs). Clervonafusp alfa can be used for late-onset Pompe disease research .

DABCYL-GABA-Ser-Gln-Asn-Tyr-Pro-Ile-Val-Gln-EDANS	HIV	Others
DABCYL-GABA-Ser-Gln-Asn-Tyr-Pro-Ile-Val-Gln-EDANS is a biological active peptide. (DABCYL-GABA-Ser-Gln-Asn-Tyr-Pro-Ile-Val-Gln-EDANS is also called HIV protease substrate I in some literature. It is widely used for the continuous assay for HIV protease activity. The 11-kD protease (PR) encoded by the human immunodeficiency virus 1 (HIV-1) is essential for the correct processing of viral polyproteins and the maturation of infectious virus, and is therefore a target for the design of selective acquired immunodeficiency syndrome (AIDS) therapeutics. The FRET-based fluorogenic substrate is derived from a natural processing site for HIV-1 PR. Incubation of recombinant HIV-1 PR with the fluorogenic substrate resulted in specific cleavage at the Tyr-Pro bond and a time-dependent increase in fluorescence intensity that is linearly related to the extent of substrate hydrolysis. The fluorescence quantum yields of the HIV-1 PR substrate in the FRET assay increased by 40.0- and 34.4-fold, respectively, per mole of substrate cleaved. Because of its simplicity and precision in the determination of reaction rates required for kinetic analysis, this substrate offers many advantages over the commonly used HPLC or electrophoresis-based assays for peptide substrate hydrolysis by retroviral PRs. Abs/Em = 340nm/490nm.)

Cat. No.	Product Name	Target	Research Area

Acetyl-pepstatin	HIV	Infection
Acetyl-pepstatin is a potent classical inhibitor of aspartic proteases (PRs) with XMRV PR and HIV-1 PR K_i values of 712 nM and 13 nM .

DABCYL-GABA-Ser-Gln-Asn-Tyr-Pro-Ile-Val-Gln-EDANS	HIV	Others
DABCYL-GABA-Ser-Gln-Asn-Tyr-Pro-Ile-Val-Gln-EDANS is a biological active peptide. (DABCYL-GABA-Ser-Gln-Asn-Tyr-Pro-Ile-Val-Gln-EDANS is also called HIV protease substrate I in some literature. It is widely used for the continuous assay for HIV protease activity. The 11-kD protease (PR) encoded by the human immunodeficiency virus 1 (HIV-1) is essential for the correct processing of viral polyproteins and the maturation of infectious virus, and is therefore a target for the design of selective acquired immunodeficiency syndrome (AIDS) therapeutics. The FRET-based fluorogenic substrate is derived from a natural processing site for HIV-1 PR. Incubation of recombinant HIV-1 PR with the fluorogenic substrate resulted in specific cleavage at the Tyr-Pro bond and a time-dependent increase in fluorescence intensity that is linearly related to the extent of substrate hydrolysis. The fluorescence quantum yields of the HIV-1 PR substrate in the FRET assay increased by 40.0- and 34.4-fold, respectively, per mole of substrate cleaved. Because of its simplicity and precision in the determination of reaction rates required for kinetic analysis, this substrate offers many advantages over the commonly used HPLC or electrophoresis-based assays for peptide substrate hydrolysis by retroviral PRs. Abs/Em = 340nm/490nm.)

Cat. No.	Product Name	Target	Research Area

Elarekibep PRS-060; AZD1402	Inhibitory Antibodies	Inflammation/Immunology
Elarekibep (PRS-060) (AZD1402) is a high affinity, slowly dissociating, long-acting full antagonist of IL-4Ra. Elarekibep can be used for the research of T2 endotype asthma .

Cinrebafusp alfa PRS 343	EGFR TNF Receptor	Cancer
Cinrebafusp alfa (PRS 343) is a high affinity CD137/HER2 bispecfic anticalin-based drug. Cinrebafusp alfa binds to recombinant human HER2 (K_d=0.3 nM) and human monomeric CD137 (4-1BB; K_d=5 nM). Cinrebafusp alfa facilitates T-cell costimulation by tumor-localized, HER2-dependent 4-1BB clustering and activation, further enhancing T-cell receptor-mediated activity and leading to tumor destruction. Cinrebafusp alfa has the potential for HER2+ solid tumors research .

Clervonafusp alfa VAL-1221	Glycosidase	Others
Clervonafusp alfa (VAL-1221) is a fusion protein targeting both cytosolic and lysosomal glycogen. Clervonafusp alfa is comprised of the Fab portion of a cell-penetrating antibody and recombinant human acid alpha glucosidase (rhGAA), the former utilizing the nucleoside transporter ENT-2 to gain access to the cytosol, and the latter enters lysosomes via mannose-6-phosphate receptors (M6PRs). Clervonafusp alfa can be used for late-onset Pompe disease research .

Species:	Human (3)
Tag:	His (4) SUMO (1) Strep (1)
Source:	HEK293 (1) E. coli (3)

Cat. No.	Compare	Product Name	Species	Source

	PRPS2 Protein, Human (His) Ribose-Phosphate Pyrophosphokinase 2; PPRibP; PRS-II; PRPS2	Human	E. coli
	The PRPS2 protein plays a key role in catalyzing the synthesis of phosphoribosyl pyrophosphate (PRPP), a key intermediate in nucleotide synthesis. By promoting the conversion of ribose 5-phosphate and ATP to PRPP, PRPS2 contributes to the availability of PRPP in various cellular processes, including de novo biosynthesis of purine and pyrimidine nucleotides. PRPS2 Protein, Human (His) is the recombinant human-derived PRPS2 protein, expressed by E. coli , with C-His labeled tag.

	PRPS2 Protein, Human (HEK293, His) Ribose-Phosphate Pyrophosphokinase 2; PPRibP; Phosphoribosyl Pyrophosphate Synthase II; PRS-II; PRPS2	Human	HEK293
	The PRPS2 protein plays a key role in catalyzing the synthesis of phosphoribosyl pyrophosphate (PRPP), a key intermediate in nucleotide synthesis. By promoting the conversion of ribose 5-phosphate and ATP to PRPP, PRPS2 contributes to the availability of PRPP in various cellular processes, including de novo biosynthesis of purine and pyrimidine nucleotides. PRPS2 Protein, Human (HEK293, His) is the recombinant human-derived PRPS2 protein, expressed by HEK293 , with C-6*His labeled tag.

	TSI3 Protein, Pseudomonas aeruginosa (His, Strep) Immune protein Tsi3; Anti-toxin protein Tsi3; tsi3; Pseudomonas aeruginosa (strain ATCC 15692 / DSM 22644 / CIP 104116 / JCM 14847 / LMG 12228 / 1C / PRS 101 / PAO1)	Others	E. coli
	TSI3 Protein, Pseudomonas aeruginosa (His, Strep) is the recombinant TSI3, expressed by E. coli , with Strep, His labeled tag. ,

	PRPS1 Protein, Human (His-SUMO) PRPS1; phosphoribosyl pyrophosphate synthetase 1; deafness, X linked 2, perceptive, congenital , DFN2; ribose-phosphate pyrophosphokinase 1; CMTX5; DFNX1; PRS I; ribose phosphate diphosphokinase 1;	Human	E. coli
	The PRPS1 protein plays a crucial role in catalyzing the synthesis of phosphoribosyl pyrophosphate (PRPP), a key intermediate in nucleotide synthesis. By promoting the conversion of ribose 5-phosphate and ATP to PRPP, PRPS1 contributes to the availability of PRPP in various cellular processes, including de novo biosynthesis of purine and pyrimidine nucleotides. PRPS1 Protein, Human (His-SUMO) is the recombinant human-derived PRPS1 protein, expressed by E. coli , with N-SUMO, N-6*His labeled tag.

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