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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91 – 105 of 119,618 results

Invitrogen™ Albumin from Bovine Serum (BSA), Alexa Fluor™ 647 conjugate

Suited for applications in which well-defined molecular weight tracers are needed

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R&D Systems™ Recombinant Human Jagged 1 Fc Chimera Protein

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

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R&D Systems™ Recombinant Human IL-2 Protein

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

Pricing & Availability
Specifications

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

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R&D Systems™ Recombinant Human IL-6R alpha Protein

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

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R&D Systems™ Recombinant Human VEGF 165 Protein

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

Pricing & Availability
Specifications

Purity or Quality Grade	97%, by SDS-PAGE with silver staining.
Conjugate	Unconjugated
Molecular Weight (g/mol)	observed_molecular_weight: 20-22 kDa, under reducing conditions. 39-42 kDa, under non-reducing conditions.
Gene ID (Entrez)	7422
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 VEGF protein Ala27-Arg191
Recombinant	Recombinant
Name	VEGF 165

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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 & Availability
Specifications

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

Invitrogen™ Ovalbumin, Texas Red™ Conjugate

Labeled with bright, photostable and pH-insensitive Alexa Fluor 594 dye

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Gibco™ LIF Recombinant Mouse Protein, embryonic stem cell-qualified

Gibco embryonic stem cell (ESC)–qualified mouse LIF is a recombinant protein that supports the culture and maintenance of mouse pluripotent stem cells (PSCs) by suppressing spontaneous differentiation.

Pricing & Availability
Specifications

Shipping Condition	Room Temperature
Protein Family	Cytokines & Receptors
Content And Storage	Store in freezer (-5°C to -30°C).
Purity or Quality Grade	>95% by SDS-PAGE
Form	Lyophilized
Gene Symbol	LIF
Expression System	Hordeum vulgare (Barley Grain)
For Use With (Application)	Cell Culture
Protein Form	Recombinant
Classification	ES Cell-Qualified
Research Category	Stem Cell Research
Protein Tag	His Tag
Species	Mouse
Recombinant	Recombinant

R&D Systems™ Human Apo-Transferrin Protein

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

Pricing & Availability
Specifications

Purity or Quality Grade	90%, by SDS-PAGE under reducing conditions and visualized by silver stain.
Conjugate	Unconjugated
Formulation	Lyophilized from a 0.2μm filtered solution in deionized water.
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	Human plasma-derived Apo-Transferrin protein The human plasma used for the isolation of this product were certified by the supplier to be negative for HIV I and II antibodies, Hepatitis C antibody and Hepatitis B antigen at the time of shipment. Human blood products should always be treated in accordance with universal handling precautions.
Name	Apo-Transferrin

100

Invitrogen™ Pertussis Toxin

Formulation: Protein expressed in E. coli. Purity: >95%. Format: Lyophilized.

Pricing & Availability

101

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R&D Systems™ Recombinant Mouse IL-4 Protein

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

Pricing & Availability
Specifications

Purity or Quality Grade	97%, by SDS-PAGE under reducing conditions and visualized by silver stain.
Conjugate	Unconjugated
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
Molecular Weight (g/mol)	14 kDa
Gene ID (Entrez)	16189
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	E. coli-derived mouse IL-4 protein His23-Ser140,with an N-terminal Met
Recombinant	Recombinant
Name	IL-4

102

Invitrogen™ DNP-BSA (Albumin from Bovine Serum (BSA), 2,4-Dinitrophenylated)

Commonly used as protein tracer

Pricing & Availability

103

R&D Systems™ Recombinant Human NT-3 Protein

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

Pricing & Availability

104

R&D Systems™ Recombinant Mouse 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 & Availability

105

R&D Systems™ Recombinant Human SCF Protein

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

Pricing & Availability
Specifications

Purity or Quality Grade	97%, by SDS-PAGE under reducing conditions and visualized by silver stain.
Conjugate	Unconjugated
Gene Alias	c-kit Ligand, DCUA, DFNA69, DKFZp686F2250, familial progressive hyperpigmentation 2, FPH2, FPHH, KIT ligand, Kitl, KITLG, KL-1, Mast cell growth factor, MGF, MGFSHEP7, SCFStem cell factor, SFc-Kit ligand, SHEP7, SLF, steel factor
Molecular Weight (g/mol)	M.W. (theroretical): 19 kDa
Gene ID (Entrez)	4254
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	E. coli-derived human SCF/c-kit Ligand protein Glu26-Ala189,with an N-terminal Met
Recombinant	Recombinant
Name	SCF/c-kit Ligand

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Recombinant Proteins

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R&D Systems™ Recombinant Human VEGF 165 Protein GSA/VA ContractAvailable on GSA/VA contract for Federal Government customers.Learn More

R&D Systems™ Recombinant Human IL-13 Protein GSA/VA ContractAvailable on GSA/VA contract for Federal Government customers.Learn More

R&D Systems™ Human Apo-Transferrin Protein GSA/VA ContractAvailable on GSA/VA contract for Federal Government customers.Learn More

R&D Systems™ Recombinant Mouse IL-4 Protein GSA/VA ContractAvailable on GSA/VA contract for Federal Government customers.Learn More

R&D Systems™ Recombinant Human NT-3 Protein GSA/VA ContractAvailable on GSA/VA contract for Federal Government customers.Learn More

R&D Systems™ Recombinant Mouse EGF Protein GSA/VA ContractAvailable on GSA/VA contract for Federal Government customers.Learn More

R&D Systems™ Recombinant Human SCF Protein GSA/VA ContractAvailable on GSA/VA contract for Federal Government customers.Learn More

R&D Systems™ Recombinant Human VEGF 165 Protein

R&D Systems™ Recombinant Human IL-13 Protein

R&D Systems™ Human Apo-Transferrin Protein

R&D Systems™ Recombinant Mouse IL-4 Protein

R&D Systems™ Recombinant Human NT-3 Protein

R&D Systems™ Recombinant Mouse EGF Protein

R&D Systems™ Recombinant Human SCF Protein