RPS19 Human

Ribosomal Protein S19 Human Recombinant
Cat. No.
BT17570
Source
Escherichia Coli.
Synonyms
Ribosomal protein S19, DBA, DBA1, S19, 40S ribosomal protein S19, RPS19.
Appearance
Sterile Filtered clear solution.
Purity
Greater than 85% as determined by SDS-PAGE.
Usage
Prospec's products are furnished for LABORATORY RESEARCH USE ONLY. They may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.
Shipped with Ice Packs
In Stock

Description

RPS19 Human Recombinant produced in E. coli is a single polypeptide chain containing 168 amino acids (1-145) and having a molecular mass of 18.4kDa. RPS19 is fused to a 23 amino acid His-tag at N-terminus & purified by proprietary chromatographic techniques.

Product Specs

Introduction
Ribosomal Protein S19, also called RPS19, belongs to the ribosomal protein family S19E. It resides in the cytoplasm and is essential for the processing of pre-rRNA and the development of 40S ribosomal subunits. Certain mutations in RPS19 can lead to Diamond-Blackfan anemia, a congenital erythroblastopenia marked by a lack or reduction of erythroid precursors.
Description
Recombinant human RPS19, produced in E. coli, is a single polypeptide chain comprising 168 amino acids (residues 1-145) with a molecular weight of 18.4kDa. A 23 amino acid His-tag is fused to the N-terminus of RPS19, and the protein is purified using proprietary chromatographic methods.
Physical Appearance
The product is a clear solution that has been sterilized by filtration.
Formulation
The RPS19 solution is provided at a concentration of 0.25mg/ml in a buffer consisting of 20mM Tris-HCl (pH 8.0), 0.2M NaCl, 40% glycerol, and 2mM DTT.
Stability
For short-term storage (2-4 weeks), the product can be stored at 4°C. For long-term storage, it is recommended to freeze the product at -20°C. The addition of a carrier protein (0.1% HSA or BSA) is advised for extended storage. Avoid repeated freeze-thaw cycles to maintain product integrity.
Purity
Analysis by SDS-PAGE indicates a purity of greater than 85%.
Synonyms
Ribosomal protein S19, DBA, DBA1, S19, 40S ribosomal protein S19, RPS19.
Source
Escherichia Coli.
Amino Acid Sequence
MGSSHHHHHH SSGLVPRGSH MGSMPGVTVK DVNQQEFVRA LAAFLKKSGK LKVPEWVDTV KLAKHKELAP YDENWFYTRA ASTARHLYLR GGAGVGSMTK IYGGRQRNGV MPSHFSRGSK SVARRVLQAL EGLKMVEKDQ DGGRKLTPQG QRDLDRIAGQ VAAANKKH.

Product Science Overview

Introduction

Ribosomal Protein S19 (RPS19) is a crucial component of the small ribosomal subunit, specifically the 40S subunit in eukaryotic cells. It plays a significant role in the synthesis of proteins by facilitating the translation of messenger RNA (mRNA) into polypeptides. The recombinant form of RPS19, produced through genetic engineering techniques, is used in various research and therapeutic applications.

Structure and Function

RPS19 is one of the 80 different ribosomal proteins that make up the ribosome, which also includes four RNA species. It is localized at the beak of the 40S ribosomal subunit . The primary function of RPS19 is to assist in the assembly and stability of the ribosome, ensuring efficient and accurate translation of mRNA.

Genetic and Clinical Significance

Mutations in the gene encoding RPS19 have been identified in approximately 25% of patients with Diamond-Blackfan Anemia (DBA), a rare congenital erythroblastopenia . This condition is characterized by a failure to produce red blood cells, leading to severe anemia. The exact mechanism by which RPS19 mutations cause DBA is still under investigation, but it is believed to involve disruptions in ribosome biogenesis and function.

Role in Erythropoiesis

RPS19 is essential for erythropoiesis, the process by which red blood cells are produced. Studies have shown that RPS19 expression decreases during terminal erythroid differentiation . This suggests that RPS19 plays a role in the early stages of erythropoiesis, and its proper function is critical for the development of red blood cells.

Immunological Implications

Recent research has uncovered novel immunosuppressive properties of RPS19. It has been found to interact with the complement C5a receptor 1 (C5aR1) on tumor-infiltrating myeloid-derived suppressor cells (MDSCs) . This interaction promotes tumor growth by facilitating the recruitment of these cells to tumors and inducing the production of immunosuppressive cytokines. Consequently, RPS19 is being explored as a potential target for anticancer therapy to enhance antitumor T cell responses .

Recombinant Production and Applications

The recombinant form of RPS19 is produced using genetic engineering techniques, where the gene encoding RPS19 is inserted into a suitable expression system, such as bacteria or yeast. This allows for the large-scale production of RPS19 for research and therapeutic purposes. Recombinant RPS19 is used in studies to understand its role in ribosome function, erythropoiesis, and its potential as a therapeutic target in cancer treatment.

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