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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16 – 30 of 118,331 results

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R&D Systems™ Recombinant Human IL-4 Protein

Carrier Free Recombinant Protein

Pricing & Availability
Specifications

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 Human IL-12 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)	34.7 kDa (p40) & 22.5 kDa (p35)
Gene ID (Entrez)	3592
Structural Form	Disulfide-linked heterodimer
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-12 protein, (N-terminus) Human IL-12 p40 (Ile23-Ser328) Accession &Num; P29460 Human IL-12 p35 (Arg23-Ser219) Accession &Num; P29459 (C-terminus)
Recombinant	Recombinant
Name	IL-12

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 & Availability

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Fisher BioReagents™ Bovine Serum Albumin, Fraction V, Cold-ethanol Precipitated

Used as a stabilizer for enzymes or enzymatic reactions, or as a blocker of nonspecific sites

Pricing & Availability

Gibco™ Human GDNF Recombinant Protein

Recombinant Protein

Pricing & Availability
Specifications

Protein Family	Growth Factors & Receptors
Purity or Quality Grade	>98% by SDS-PAGE
Conjugate	Unconjugated
Form	Lyophilized
Common Name	GDNF
Molecular Weight (g/mol)	30.1 kDa
Endotoxin Level	<0.1 ng/μg
Activity	ED50 ≤ 10 n/mL; determined by the dose-dependent neurite outgrowth of PC-12 cells in the presence of soluble GFR-alpha.
Endotoxin Concentration	<0.1 ng/μg
Expression System	E. coli
For Use With (Application)	Bioactivity
Name	Human GDNF
Purification Method	Purified
Gene Alias	AI385739; Astrocyte-derived trophic factor; ATF; ATF1; ATF2; Gdnf; glial cell derived neurotrophic factor; glial cell line derived neurotrophic factor; Glial cell line derived neutrophic factor; glial cell line-derived neurotrophic factor; gndf; HFB1-GDNF; hGDNF; H-GDNF; HSCR3; mGDNF; neurotrophic factor
Protein Form	Recombinant, Ligand
Biological Activity	ED50 ≤ 10 n/mL; determined by the dose-dependent neurite outgrowth of PC-12 cells in the presence of soluble GFR-alpha.
Formulation	Protein with no preservative
Classification	Carrier-Free
Research Category	Neurobiology, Stem Cell Research, Differentiation
Species	Human
Recombinant	Recombinant
Shipping Condition	Approved for shipment on Wet or Dry Ice
Content And Storage	4°C
Gene Symbol	GDNF
Sequence	SPDKQMAVLP RRERNRQAAA ANPENSRGKG RRGQRGKNRG CVLTAIHLNV TDLGLGYETK EELIFRYCSG SCDAAETTYD KILKNLSRNR RLVSDKVGQA CCRPIAFDDD LSFLDDNLVY HILRKHSAKR CGCI
Storage Requirements	4°C
Protein Subtype	Neurotrophic Factors
Accession Number	P39905
Regulatory Status	RUO
Product Type	Protein
Gene ID (Entrez)	2668
Product Line	Gibco

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 & Availability
Specifications

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

Fisher BioReagents™ Bovine Serum Albumin (Lyophilized Powder)

Pricing & Availability
Specifications

Form	Lyophilized
pH Range	5 to 5.4
Packaging	Amber Glass
For Use With (Application)	Protein Stabilizer and Blocking Agent
Source	Bovine
Name	BSA

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Fisher BioReagents™ Bovine Serum Albumin, Heat Shock Treated

Suitable for immunological studies

Pricing & Availability
Specifications

pH Range	7 ±0.3
Packaging	Poly Bottle
For Use With (Application)	Immunological Applications
Source	Bovine

R&D Systems™ Recombinant Human IGF-I/IGF-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 & Availability
Specifications

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)	7.6 kDa
Gene ID (Entrez)	3479
Formulation	Lyophilized from a 0.2μm filtered solution 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.
Source	E. coli-derived human IGF-I/IGF-1 protein Gly49-Ala118
Recombinant	Recombinant
Name	IGF-I/IGF-1

Gibco™ Human BMP-4 Recombinant Protein

Recombinant Protein

Pricing & Availability
Specifications

Protein Family	Growth Factors & Receptors
Purity or Quality Grade	>95% by SDS-PAGE
Conjugate	Unconjugated
Form	Lyophilized
Common Name	BMP4
Molecular Weight (g/mol)	34 kDa
Activity	ED50 = 2 - 10 ng/mL; determined by the dose-dependent induction of alkaline phosphatase production in ATDC-5 cells.
Endotoxin Concentration	<1 EU/μg
Expression System	HEK293 cells
For Use With (Application)	Bioactivity
Name	Human BMP-4
Purification Method	Purified
Gene Alias	BMP; BMP2B; BMP-2B; Bmp2b1; Bmp2b-1; Bmp4; Bmp-4; BOMPR4A; Bone morphogenetic protein; Bone morphogenetic protein 2B; bone morphogenetic protein 4; bone morphogenetic protein 4 preproprotein; DVR4; Dvr-4; MCOPS6; OFC11; ZYME
Protein Form	Recombinant, Ligand
Biological Activity	ED50 = 2 - 10 ng/mL; determined by the dose-dependent induction of alkaline phosphatase production in ATDC-5 cells.
Formulation	HCl with no preservative
Research Category	Bone Research, Stem Cell Research, Differentiation
Species	Human
Recombinant	Recombinant
Shipping Condition	Dry Ice
Content And Storage	-20°C
Gene Symbol	BMP4
Storage Requirements	-20°C
Protein Subtype	BMPs (Bone Morphogenetic Proteins) & Related Factors
Accession Number	P12644, P21275
Regulatory Status	RUO
Product Type	Protein
Gene ID (Entrez)	12159, 652
Product Line	Gibco

R&D Systems™ Recombinant Human Wnt-3a 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	75%, by SDS-PAGE with silver staining.
Conjugate	Unconjugated
Molecular Weight (g/mol)	37.4 kDa
Gene ID (Entrez)	89780
Source	Chinese Hamster Ovary cell line,CHO-derived human Wnt-3a protein Ser19-Lys352
Recombinant	Recombinant
Name	Wnt-3a

R&D Systems™ Recombinant Human IL-2 Protein

Version with mutation found in aldesleukin Available!

Pricing & Availability
Specifications

Accession Number	P60568
Purity or Quality Grade	>97%, by SDS-PAGE under reducing conditions and visualized by silver stain.
Conjugate	Unconjugated
Molecular Weight (g/mol)	13 kDa, under reducing conditions.
Gene ID (Entrez)	3558
Gene Symbol	IL2
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-2
Source	E. coli-derived human IL-2 protein Ala21-Thr153, with an N-terminal Met
Recombinant	Recombinant
Name	IL-2

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R&D Systems™ Recombinant Mouse IFN-gamma 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
Molecular Weight (g/mol)	15.6 kDa
Gene ID (Entrez)	15978
Quantity	100 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	E. coli-derived mouse IFN-gamma protein His23-Cys155,with an N-terminal Met
Recombinant	Recombinant
Name	IFN-gamma

Invitrogen™ Cholera Toxin Subunit B (Recombinant), Alexa Fluor™ 555 Conjugate

Made from a recombinant version of the B subunit only to provide a very high-purity product that is completely free of the toxic A subunit

Pricing & Availability
Specifications

Shipping Condition	Room Temperature
Content And Storage	Store in freezer (-5 to -30°C) and protect from light.
Conjugate	Alexa Fluor 555
Form	Lyophilized
Protein Form	Recombinant
Label Type	Alexa Fluor Dyes
Product Line	Alexa Fluor
Protein Subtype	Cholera Toxin
Recombinant	Recombinant

Gibco™ Mouse IL-3 Recombinant Protein

Recombinant Protein

Pricing & Availability
Specifications

Protein Family	Cytokines & Receptors
Purity or Quality Grade	>95% by SDS-PAGE
Conjugate	Unconjugated
Form	Lyophilized
Common Name	IL-3
Molecular Weight (g/mol)	16.1 kDa
Endotoxin Level	<0.1 ng/μg
Activity	ED50 < 0.1 ng/mL; determined by the dose-dependent proliferation of NFS-60 cells.
Endotoxin Concentration	<0.1 EU/μg
Expression System	E. coli
Name	Mouse IL-3
Purification Method	Purified
Gene Alias	BP/BPA; BPA; Colony stimulating factor multiple; colony-stimulating factor, multiple; Csfmu; Eo-CSF; HCGF; hematopoietic growth factor; Il3; Il-3; ILN; Interleukin; interleukin 3; Interleukin 3 (colony stimulating factor; Interleukin3; interleukin-3; Mast cell growth factor; mast-cell growth factor; MCGF; MGC79398; MGC79399; MGF; Multi CSF; MULTI-CSF; Multilineage colony stimulating factor; multilineage-colony-stimulating factor; multiple); multipotential colony-stimulating factor; P cell stimulating factor; P-cell stimulating factor; P-cell-stimulating factor; PCSA; PSF
Protein Form	Recombinant, Ligand
Biological Activity	ED50 < 0.1 ng/mL; determined by the dose-dependent proliferation of NFS-60 cells.
Formulation	Protein with no preservative
Classification	Carrier-Free
Research Category	Immunology
Species	Mouse
Recombinant	Recombinant
Shipping Condition	Wet Ice
Content And Storage	4°C
Gene Symbol	IL3
Sequence	ASISGRDTHR LTRTLNCSSI VKEIIGKLPE PELKTDDEGP SLRNKSFRRV NLSKFVESQG EVDPEDRYVI KSNLQKLNCC LPTSANDSAL PGVFIRDLDD FRKKLRFYMV HLNDLETVLT SRPPQPASGS VSPNRGTVEC
Storage Requirements	4°C
Protein Subtype	Interleukins
Accession Number	P01586
Regulatory Status	RUO
Product Type	Protein
Gene ID (Entrez)	16187
Product Line	Gibco

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Recombinant Proteins

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R&D Systems™ Recombinant Human IL-12 Protein GSA/VA ContractAvailable on GSA/VA contract for Federal Government customers.Learn More

R&D Systems™ Recombinant Human IL-6 Protein GSA/VA ContractAvailable on GSA/VA contract for Federal Government customers.Learn More

R&D Systems™ Recombinant Human TGF-beta 1 Protein GSA/VA ContractAvailable on GSA/VA contract for Federal Government customers.Learn More

Fisher BioReagents™ Bovine Serum Albumin (Lyophilized Powder) GSA/VA ContractAvailable on GSA/VA contract for Federal Government customers.Learn More

Fisher BioReagents™ Bovine Serum Albumin, Heat Shock Treated GSA/VA ContractAvailable on GSA/VA contract for Federal Government customers.Learn More

R&D Systems™ Recombinant Human IGF-I/IGF-1 Protein GSA/VA ContractAvailable on GSA/VA contract for Federal Government customers.Learn More

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

R&D Systems™ Recombinant Human IL-2 Protein GSA/VA ContractAvailable on GSA/VA contract for Federal Government customers.Learn More

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

R&D Systems™ Recombinant Human IL-12 Protein

R&D Systems™ Recombinant Human IL-6 Protein

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

Fisher BioReagents™ Bovine Serum Albumin (Lyophilized Powder)

Fisher BioReagents™ Bovine Serum Albumin, Heat Shock Treated

R&D Systems™ Recombinant Human IGF-I/IGF-1 Protein

R&D Systems™ Recombinant Human Wnt-3a Protein

R&D Systems™ Recombinant Human IL-2 Protein

R&D Systems™ Recombinant Mouse IFN-gamma Protein