Recombinant Proteins

Modified or manipulated proteins encoded by recombinant DNA and suitable for a variety of purposes including the modification of gene sequences, mass protein production, and the manufacture of commercial products.

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10,021 – 10,035 of 121,316 results

10,021

Invitrogen™ SARS-CoV-2 Spike Protein (RBD) (A435S) His-tag Recombinant Protein

Recombinant Protein

Pricing & Availability
Specifications

Purity or Quality Grade	>95% as determined by SDS-PAGE.
Conjugate	Unconjugated
pH Range	7.4
Form	Lyophilized
Molecular Weight (g/mol)	26.56 kDa
Common Name	SARS-CoV-2 Spike Protein RBD
Activity	Measured by its binding ability in a functional ELISA. Immobilized human ACE2 protein (Fc tag) at 2 μg/mL (100 μL/well) can bind SARS-CoV-2 (2019-nCoV) Spike RBD-His (A435S) Recombinant Protein (RP-88389),the EC50 of SARS-CoV-2 (2019-nCoV) Spike RBD-His (A435S) Recombinant Protein (RP-88389) is 20-50 ng/mL.
Endotoxin Concentration	<1.0 EU/μg
Storage Requirements	-20°C, Avoid Freeze/Thaw Cycles
Sequence	SARS-CoV-2 spike RBD (Accession # YP_009724390.1), amino acids Arg319-Phe541 with an A435S substitution and a C-terminal His-tag
Expression System	HEK293 cells
For Use With (Application)	Control,ELISA Standard,Binding Assay
Name	SARS-CoV-2 Spike Protein (RBD) (A435S) His-tag
Regulatory Status	RUO
Purification Method	Purified
Gene Alias	Coronavirus; COVID; Covid 19; COVID19; COVID-19; SARS; SARS Coronavirus; SARS CoV; SARS CoV2; SARS CoV-2; SARS Spike Protein; SARS-CoV2; SARS-CoV-2
Product Type	Protein
Formulation	PBS with 0.01% mannitol, 5-8% trehalose, 0.01% Tween 80 and no preservative; pH 7.4
Protein Tag	His-tag
Recombinant	Recombinant

10,022

R&D Systems™ Recombinant Human Integrin alpha 2 beta 1 Protein

Extensive quality control produces lot-to-lot consistency that instills confidence in results and ensures reproducibility. Applications: Binding Activity

Pricing & Availability

10,023

R&D Systems™ Recombinant Human Corneodesmosin Protein

Extensive quality control produces industry leading bioactivity and lot-to-lot consistency that instills confidence in results and ensures reproducibility.

Pricing & Availability

10,024

R&D Systems™ Recombinant Cotton Rat IL-10 (Cys149Tyr) Protein

Extensive quality control produces industry leading bioactivity and lot-to-lot consistency that instills confidence in results and ensures reproducibility.

Pricing & Availability

10,025

R&D Systems™ Recombinant Mouse Activin RIIA Fc Chimera Protein

Extensive quality control produces industry leading bioactivity and lot-to-lot consistency that instills confidence in results and ensures reproducibility.

Pricing & Availability

10,026

Promotions Available

R&D Systems™ Recombinant Human FCRL5/FcRH5 Protein

Extensive quality control produces industry leading bioactivity and lot-to-lot consistency that instills confidence in results and ensures reproducibility.

Pricing & Availability

10,027

Promotions Available

R&D Systems™ Recombinant Human IL-5 R alpha Protein

Extensive quality control produces industry leading bioactivity and lot-to-lot consistency that instills confidence in results and ensures reproducibility.

Pricing & Availability
Specifications

Purity or Quality Grade	97%, by SDS-PAGE under reducing conditions and visualized by silver stain.
Conjugate	Unconjugated
Molecular Weight (g/mol)	38 kDa
Gene ID (Entrez)	3568
Quantity	25 μg
Storage Requirements	Use a manual defrost freezer and avoid repeated freeze-thaw cycles. 12 months from date of receipt, -20 to -70° C as supplied. 1 month, 2 to 8° C under sterile conditions after reconstitution. 3 months, -20 to -70° C under sterile conditions after reconstitution.
Source	Spodoptera frugiperda,Sf 21 (baculovirus)-derived human IL-5 R alpha/CD125 protein Asp21-Glu335
Recombinant	Recombinant
Name	IL-5R alpha/CD125

10,028

Novus Biologicals™ NIT2 Protein

Highly purified. Generating reliable and reproducible results.

Pricing & Availability
Specifications

Regulatory Status	RUO
Purification Method	SDS-PAGE
Purity or Quality Grade	>95%
Conjugate	Unconjugated
Common Name	NIT2
Molecular Weight (g/mol)	33kDa
Formulation	Liquid. In 20mM Tris-HCl buffer (pH 8.0) containing 1mM DTT, 10% glycerol, 0.1M NaCl
Storage Requirements	Store at -80°C. Avoid freeze-thaw cycles.
Concentration	1mg/mL
For Use With (Application)	SDS-PAGE

10,029

Novus Biologicals™ CRYGA Recombinant Protein Antigen

Recombinant Protein

Pricing & Availability

10,030

Promotions Available

R&DSystems™ Recombinant Human CRACC/SLAMF7 His-tag Avi-tag Protein, CF

Recombinant Protein

Pricing & Availability

10,031

Novus Biologicals™ Rab5b Protein

Highly purified. Generating reliable and reproducible results.

Pricing & Availability
Specifications

Regulatory Status	RUO
Purification Method	SDS-PAGE
Purity or Quality Grade	>90%
Conjugate	Unconjugated
Common Name	Rab5b
Molecular Weight (g/mol)	26.1kDa
Formulation	Liquid. In 20mM Tris-HCl buffer (pH 8.0) containing 1mM DTT, 20% glycerol, 0.2M NaCl
Storage Requirements	Store at -80°C. Avoid freeze-thaw cycles.
Concentration	1mg/mL
For Use With (Application)	SDS-PAGE

10,032

R&D Systems™ Recombinant SARS-CoV-2 BA.2 Spike S1 NTD His-tag Protein

Omicron Variant

Pricing & Availability

10,033

R&D Systems™ Recombinant Human Aminoacylase/ACY1 Protein, CF

Extensive quality control produces industry leading bioactivity and lot-to-lot consistency that instills confidence in results and ensures reproducibility. Applications: Enzyme Activity

Pricing & Availability

10,034

R&D Systems™ Recombinant Mouse R-Spondin 2 Fc Chimera Protein, CF

Recombinant Protein

Pricing & Availability
Specifications

Purity or Quality Grade	>95%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie™ Blue Staining.
Conjugate	Unconjugated
Gene Alias	Cristin 2, CRISTIN2, hRspo2, MGC35555, MGC43342, Roof plate-specific spondin-2, RSPO2, RSpondin 2, R-spondin 2 homolog (Xenopus laevis), R-spondin-2
Molecular Weight (g/mol)	M.W.-observed: 52-63 kDa, under reducing conditions., M.W.-theroretical: 46 kDa
Gene ID (Entrez)	340419
Formulation	Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose.
Reconstitution	Reconstitute the 20 μg size at 200 μg/mL in PBS. Reconstitute all other sizes at 500 μg/mL in PBS.
Endotoxin Concentration	<0.10 EU per 1 μg of the protein by the LAL method.
Storage Requirements	Use a manual defrost freezer and avoid repeated freeze-thaw cycles. 12 months from date of receipt, -20 to -70 °C as supplied. 1 month, 2 to 8 °C under sterile conditions after reconstitution. 3 months, -20 to -70 °C under sterile conditions after reconstitution.
For Use With (Application)	Bioactivity
Protein	R-Spondin 2
Source	Chinese Hamster Ovary cell line, CHO-derived mouse R-Spondin 2 protein Mouse RSPO-2 (Ala32-Gly205) (N-terminus) Accession # Q8BFU0.1 IEGRMD Human IgG1 (Pro100-Lys330) (C-terminus)

10,035

R&D Systems™ Recombinant Human Carnosine Dipeptidase 1 Protein

Extensive quality control produces industry leading bioactivity and lot-to-lot consistency that instills confidence in results and ensures reproducibility. Applications: Enzyme Activity

Pricing & Availability

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