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Recombinant

Recombinant (2,000)

Protein State

Native (1,056)

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Lyophilized (2)
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Purified (174)

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Mouse (62)
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1 – 15 of 5,855 results

R&D Systems™ Recombinant Human EGF Protein

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

Pricing and Availability
Specifications

Recombinant Proteins

Purity or Quality Grade	>97%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie™ Blue Staining.
Conjugate	Unconjugated
Molecular Weight (g/mol)	M.W. (Observed): 6 kDa, reducing conditions; M.W. (theoretical): 6 kDa
Gene Symbol	EGF
Endotoxin Concentration	<0.10 EU / 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°C to -70°C as supplied. 1 month, 2°C to 8°C under sterile conditions after reconstitution. 3 months, -20°C to -70°C under sterile conditions after reconstitution.
For Use With (Application)	Bioactivity
Protein	EGF
Source	E. coli-derived human EGF protein Asn971-Arg1023, with an N-terminal Met
Name	EGF
Accession Number	P01133
Gene ID (Entrez)	1950
Formulation	Lyophilized from a 0.2 μm filtered solution in PBS.
Reconstitution	Reconstitute at 500 μg/mL in sterile PBS.
Recombinant	Recombinant

R&D Systems™ Recombinant Human Lymphotoxin alpha1/beta2 Protein

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

Pricing and Availability

Recombinant Proteins

R&D Systems™ Recombinant Human IL-4 Protein

Carrier Free Recombinant Protein

Pricing and Availability
Specifications

Recombinant Proteins

Purity or Quality Grade	>97%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie™ Blue Staining.
Conjugate	Unconjugated
Molecular Weight (g/mol)	M.W. (Observed): 13 kDa, under reducing conditions., M.W. (Theoretical): 15.1 kDa
Endotoxin Concentration	<0.10 EU per 1μg 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	IL-4
Source	E. coli-derived human IL-4 protein His25-Ser153, with an N-terminal Met
Accession Number	P05112.1
Gene Alias	B cell growth factor 1, BCDF, B-cell stimulatory factor 1, BCGF1, BCGF-1, binetrakin, BSF1, BSF-1, IL4, IL-4B_cell stimulatory factor 1, IL4E12, interleukin 4, interleukin-4, Lymphocyte stimulatory factor 1, MGC79402, Pitrakinra
Gene ID (Entrez)	3565
Formulation	Lyophilized from a 0.2μm filtered solution in PBS with Trehalose.
Reconstitution	Reconstitute the 10μg size at 100μg/mL in PBS. Reconstitute all other sizes at 500μg/mL in PBS.
Species	Human

R&D Systems™ Recombinant Porcine PD-L1/B7-H1 Fc Chimera Protein

Measured by its binding ability in a functional ELISA.

Pricing and Availability

Recombinant Proteins

R&D Systems™ Recombinant Human IL-13 Protein

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

Pricing and Availability
Specifications

Recombinant Proteins

Conjugate	Unconjugated
Molecular Weight (g/mol)	12.3 kDa
Gene ID (Entrez)	3596

R&D Systems™ Recombinant SARS-CoV-2 Spike RBD Fc Chimera Protein

CHO Expressed, High ACE-2 Binding

Pricing and Availability

Recombinant Proteins

R&D Systems™ Recombinant Human IL-17A (Human Cell-expressed) Protein

Earn double rewards for reviews

Pricing and Availability
Specifications

Recombinant Proteins

Buffer	Lyophilized from a 0.2 μm filtered solution in PBS.
Purity or Quality Grade	>95%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie™ Blue Staining.
Conjugate	Unconjugated
Molecular Weight (g/mol)	15.1 kDa (monomer)
Endotoxin Level	<0.01 EU per 1 μg of the protein by the LAL method.
Gene Symbol	IL17A
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
Source	Human embryonic kidney cell, HEK293-derived human IL-17/IL-17A protein Gly24-Ala155
Name	CTLA8, CTLA-8, CTLA8cytotoxic T-lymphocyte-associated serine esterase 8, Cytotoxic T-lymphocyte-associated antigen 8, IL17, IL17A, IL-17A, IL-17Acytotoxic T-lymphocyte-associated protein 8, IL-17CTLA-8, IL17interleukin-17A, interleukin 17 (cytotoxic T-lymphocyte-associated serine esterase 8), interleukin 17A
Accession Number	Q16552
Gene ID (Entrez)	3605
Reconstitution	Reconstitute at 100 μg/mL in PBS.
Species	Human

R&D Systems™ Recombinant Human TNF-alpha (HEK293-expressed) Protein

Measured in a cytotoxicity assay using L-929 mouse fibroblast cells in the presence of the metabolic inhibitor actinomycin D. ED50 for this effect is 20 to 100 pg/mL.

Pricing and Availability
Specifications

Recombinant Proteins

Buffer	Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose.
Accession Number	P01375
Purity or Quality Grade	>95%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie™ Blue Staining.
Conjugate	Unconjugated
Molecular Weight (g/mol)	17 kDa
Gene ID (Entrez)	7124
Endotoxin Level	<0.10 EU per 1 μg of the protein by the LAL method.
Reconstitution	Reconstitute at 500 μg/mL in PBS.
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
Species	Human
Source	Human embryonic kidney cell, HEK293-derived human TNF-alpha protein Val77-Leu233
Name	APC1 protein, Cachectin, Cachetin, DIF, TNF, TNF, monocyte-derived, TNF-a, TNFA, TNFalpha, TNF-alphacachectin, TNFATNF, macrophage-derived, TNFG1F, TNFSF1A, TNFSF2, TNFSF2TNF superfamily, member 2, tumor necrosis factor, tumor necrosis factor (TNF superfamily, member 2), tumor necrosis factor alpha, Tumor necrosis factor ligand superfamily member 2, tumor necrosis factor-alpha

R&D Systems™ Recombinant Human TGF-beta 1 Protein

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

Pricing and Availability
Specifications

Recombinant Proteins

Conjugate	Unconjugated
Gene Alias	CEDLAP, DPD1, latency-associated peptide, TGF beta1, TGFB, TGFB1, TGFbeta, TGFbeta 1, TGF-beta 1 protein, TGF-beta-1, transforming growth factor beta-1, transforming growth factor, beta 1
Gene ID (Entrez)	7040
Structural Form	Disulfide-linked homodimer
Recombinant	Recombinant
Name	TGF-beta 1

R&D Systems™ Recombinant Human IL-2 Protein

Contains the Cysteine to Serine substitution found in Proleukin™ (aldesleukin)

Pricing and Availability
Specifications

Recombinant Proteins

Accession Number	P60568.1
Purity or Quality Grade	>97%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie™ Blue Staining.
Conjugate	Unconjugated
Gene Alias	aldesleukin, IL2, IL-2, IL-2 lymphokine, interleukin 2, interleukin-2, involved in regulation of T-cell clonal expansion, Proleukin, T cell growth factor, T-cell growth factor, TCGF
Molecular Weight (g/mol)	M.W.-observed: 13 kDa, under reducing conditions., M.W.-theroretical: 15.5 kDa
Gene ID (Entrez)	3558
Formulation	Lyophilized from a 0.2 μm filtered solution in Sodium Acetate with Trehalose.
Reconstitution	Reconstitute the 10 μg size at 100 μg/mL in sterile deionized water. Reconstitute all other sizes (at 500 μg/mL in sterile deionized water.)
Endotoxin Concentration	<0.01 EU / 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°C to -70°C as supplied. 1 month, 2°C to 8°C under sterile conditions after reconstitution. 3 months, -20°C to -70°C under sterile conditions after reconstitution.
For Use With (Application)	Bioactivity
Protein	IL-2
Source	E. coli-derived human IL-2 protein Ala21-Thr153 (Cys145Ser), with and without an N-terminal Met

R&D Systems™ Recombinant Human IL-4 Protein, Animal-Free

Intended for preclinical researchers who may transition to GMP IL-4 for their clinical work

Pricing and Availability
Specifications

Recombinant Proteins

Purity or Quality Grade	>97%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie™ Blue Staining.
Conjugate	Unconjugated
Molecular Weight (g/mol)	M.W. (Observed): 13 kDa, under reducing conditions., M.W. (Theoretical): 15.1 kDa
Endotoxin Concentration	<0.10 EU per 1μg 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	IL-4
Source	E. coli-derived human IL-4 protein His25-Ser153, with an N-terminal Met Produced using non-animal reagents in an animal-free laboratory.
Accession Number	P05112.1
Gene Alias	B cell growth factor 1, BCDF, B-cell stimulatory factor 1, BCGF1, BCGF-1, binetrakin, BSF1, BSF-1, IL4, IL-4B_cell stimulatory factor 1, IL4E12, interleukin 4, interleukin-4, Lymphocyte stimulatory factor 1, MGC79402, Pitrakinra
Gene ID (Entrez)	3565
Formulation	Lyophilized from a 0.2μm filtered solution in PBS with Trehalose.
Reconstitution	Reconstitute at 500μg/mL in PBS.
Species	Human

R&D Systems™ Recombinant Human M-CSF Protein

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

Pricing and Availability
Specifications

Recombinant Proteins

Purity or Quality Grade	>97%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie™ Blue Staining.
Conjugate	Unconjugated
Molecular Weight (g/mol)	18.5 kDa (monomer)
Gene Symbol	CSF1
Endotoxin Concentration	<1.0 EU per 1 μg of the protein by the LAL method.
For Use With (Application)	Bioactivity
Source	<EM>E. coli</EM>-derived human M-CSF protein Glu33-Ser190, with an N-terminal Met
Accession Number	NP_757350
Regulatory Status	RUO
Gene ID (Entrez)	1435
Formulation	Lyophilized from a 0.2 μm filtered solution in PBS with BSA as a carrier protein.
Reconstitution	Reconstitute at 50-500 μg/mL in sterile PBS containing at least 0.1% human or bovine serum albumin.
Cross Reactivity	M-CSF
Species	Human

R&D Systems™ Recombinant Human BDNF Protein

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

Pricing and Availability
Specifications

Recombinant Proteins

Buffer	Lyophilized from a 0.2 μm filtered solution in Sodium Citrate and NaCl with BSA as a carrier protein.
Purity or Quality Grade	>97%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie« Blue Staining.
Conjugate	Unconjugated
Specific Reactivity	BDNF
Molecular Weight (g/mol)	13-14 kDa, under reducing conditions.
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
Source	Spodoptera frugiperda,Sf 21 (baculovirus)-derived BDNF protein His129-Arg247 Accession &Num; P23560 100% sequence homology with Mouse,Rat,Canine,Equine and all other mammalian proteins examined.
Accession Number	P23560
Regulatory Status	RUO
Gene ID (Entrez)	627
Reconstitution	Reconstitute 5 μg vials at 100 μg/mL in water. Reconstitute 10 μg or larger vials at 250 μg/mL in water.
Species	Human,Mouse,Rat,Canine,Equine
Recombinant	Recombinant

R&D Systems™ Human Thrombospondin-1 Quantikine ELISA Kit

Human Thrombospondin-1 Quantikine ELISA Kit from the most referenced ELISA manufacturer. Highly validated for accurate quantitation and long-term reproducibility.

Pricing and Availability

Life Science Research ELISA Kits

R&D Systems™ Recombinant Human IL-6 Protein

A New rh IL-6 is Available! The new protein has ∼2 fold better activity and is HEK293 expressed!

Pricing and Availability
Specifications

Recombinant Proteins

Purity or Quality Grade	>97%, by SDS-PAGE under reducing conditions and visualized by silver stain.
Conjugate	Unconjugated
Molecular Weight (g/mol)	M.W. theroretical: 20.9 kDa
Gene Symbol	IL6
Endotoxin Concentration	<0.10 EU / 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°C to -70°C as supplied. 1 month, 2°C to 8°C under sterile conditions after reconstitution. 3 months, -20°C to -70°C under sterile conditions after reconstitution.
For Use With (Application)	Bioactivity
Protein	IL-6
Source	E. coli-derived human IL-6 protein Pro29-Met212
Name	IL-6
Accession Number	Q75MH2
Gene Alias	B-cell differentiation factor, B-cell stimulatory factor 2, BSF2, BSF-2, CDF, CTL differentiation factor, HSF, hybridoma growth factor, IFNB2, IFN-beta-2, IL6, IL-6, Interferon beta-2, interleukin 6 (interferon, beta 2), interleukin BSF-2, interleukin-6, MGI-2A
Gene ID (Entrez)	3569
Formulation	Lyophilized from a 0.2 μm filtered solution in PBS and NaCl.
Recombinant	Recombinant

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