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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Invitrogen™ Human IL-4 Recombinant Protein

Recombinant Protein

Pricing & Availability
Specifications

Content And Storage	Includes 1 vial of lyophilized protein. Store at -20 °C.
Purity or Quality Grade	≥95 % as determined by SDS-PAGE. ≥95 % as determined by SEC-HPLC.
Conjugate	Unconjugated
Form	Lyophilized
Common Name	IL-4
Molecular Weight (g/mol)	15 kDa
Gene Symbol	Il4
Sequence	Human IL-4 isoform 1, amino acids His25-Ser153 (Accession # P05112-1) with an N-terminal Met
Expression System	E. coli
For Use With (Application)	Control,Bioactivity,Immunohistochemistry,Western Blot
Source	E. coli
Name	Human IL-4
Accession Number	P05112
Regulatory Status	RUO
Gene Alias	B cell growth factor 1; B_cell stimulatory factor 1; B-cell growth factor 1; B-cell IgG differentiation factor; B-cell stimulatory factor 1; BCGF1; BCGF-1; binetrakin; BSF1; BSF-1; cytokine; H-IL-4; IGG1 induction factor; IL2; IL4; Il-4; Il4e12; ILN; Interleukin; interleukin 4; interleukin 4 variant 2; interleukin 4 variant IL-4delta2; interleukin 4 variant IL-4delta3; interleukin 4 variant IL-4int2A; interleukin 4 variant IL-4int3A; interleukin 4 variant IL-4int3B; Interleukin4; interleukin-4; interleukin-4 precursor; lymphocyte stimulatory factor 1; MGC79402; M-IL-4; Pitrakinra
Biological Activity	Measured in a cell proliferation assay using TF-1 human erythroleukemic cells. The ED50 for this effect is 0.05-0.25 ng/mL
Gene ID (Entrez)	3565
Formulation	PBS with 5% mannitol, 5% trehalose, 0.01% Tween 80 and no preservative; pH 7.4
Recombinant	Recombinant

Gibco™ Wnt Surrogate-Fc Fusion Recombinant Protein

Recombinant Protein

Pricing & Availability
Specifications

Content And Storage	-20°Cor to +80°C if preferred
Purity or Quality Grade	>95%
Conjugate	Unconjugated
Form	Liquid
Common Name	WNT3A
Gene Symbol	WNT3A
Endotoxin Concentration	1 EU/mL
Concentration	2 mg/mL
Expression System	HEK293 cells
For Use With (Application)	Functional Assay
Source	HEK293 cells
Name	Wnt Surrogate-Fc Fusion
Accession Number	P56704
Regulatory Status	RUO
Gene Alias	MGC119418; MGC119419; MGC119420; Protein Wnt-3 A; vestigial tail; vt; wingless-related MMTV integration site 3 A; wingless-type MMTV integration site family member 3 A; wingless-type MMTV integration site family, member 3 like; wingless-type MMTV integration site family, member 3 A; Wnt 3 A; Wnt family member 3 A; wnt[a]; wnt3; wnt3 l; wnt3 like; Wnt3a; Wnt-3 A; WNT3A protein; wnt3l; Zwnt[a]
Biological Activity	Greater than 25 fold induction in Topflash assay activity (at a Wnt surrogate-Fc protein concentration between 0.03 - 5.0 nM (based on dimeric stoichiometry))
Gene ID (Entrez)	89780
Formulation	25 mM tris with 500 mM NaCl and no preservative; pH 8.2
Recombinant	Recombinant

Gibco™ Heat Stable FGF-10 Recombinant Protein

Recombinant Protein

Pricing & Availability
Specifications

Buffer	750 mM NaCl, 20 mM Na2PO4
Content And Storage	-20°Cor to +80°C if preferred
Purity or Quality Grade	>95% by SDS-PAGE
Conjugate	Unconjugated
Form	Lyophilized
Common Name	FGF10
Activity	ED50 ≤1.0 ng/mL; measured in a cell proliferation assay using 4 MBr-5 cells
Endotoxin Concentration	0.25 EU/μg
Sequence	Thermostable variant of human FGF-10 (190 amino acids) with proprietary amino acid substitutions
Expression System	E. coli
For Use With (Application)	Functional Assay
Name	Heat Stable FGF-10
Accession Number	O15520
Purification Method	SDS-Page
Gene Alias	AEY17; BB213776; FGF; Fgf10; FGF-10; Fibroblast growth factor; Fibroblast growth factor 10; Gsfaey17; Keratinocyte growth factor 2; produced by fibroblasts of urinary bladder lamina propria
Product Type	Protein
Biological Activity	ED50 = 1.0 ng/mL; measured in a cell proliferation assay using 4 MBr-5 cells
Gene ID (Entrez)	2255
Formulation	protein with 20 mM Na2PO4, 750 mM NaCl and no preservative; pH 7.5
Classification	Recombinant
Species	Human
Recombinant	Recombinant

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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

R&D Systems™ Recombinant Human Cathepsin B 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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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 & Availability
Specifications

Conjugate	Unconjugated
Gene ID (Entrez)	1435
Source	E. coli-derived human M-CSF protein Glu33-Ser190,with an N-terminal Met

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R&D Systems™ Recombinant Mouse IL-6 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

R&D Systems™ Recombinant Human IL-15 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
Common Name	IL-15
Molecular Weight (g/mol)	10 kDa, under reducing conditions.
Gene Symbol	IL15
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.
Expression System	E. coli-derived Asn49-Ser162
For Use With (Application)	Bioactivity
Source	E. coli-derived human IL-15 protein Asn49-Ser162
Accession Number	P40933.1
Gene Alias	IL15, IL-15MGC9721, interleukin 15, interleukin-15
Biological Activity	Measured in a cell proliferation assay using MO7e human megakaryocytic leukemic cells. The ED50 for this effect is typically 0.3-2.6ng/mL. The specific activity of Recombinant Human IL-15 is approximately 4.5 x 105 U/μg, which is calibrated against recombinant human IL-15 WHO International Standard (NIBSC code: 95/554).
Gene ID (Entrez)	3600
Formulation	Lyophilized from a 0.2μm filtered solution in PBS with BSA as a carrier protein. Reconstitute at 100μg/mL in sterile PBS.
Species	Human
Recombinant	Recombinant

R&D Systems™ Recombinant Human 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)	15 kDa
Gene ID (Entrez)	3565
Endotoxin Concentration	<0.1 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.
Source	E. coli-derived human IL-4 protein His25-Ser153,with an N-terminal Met
Recombinant	Recombinant
Name	IL-4

R&D Systems™ Recombinant Human Apolipoprotein E3 Protein

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

Pricing & Availability

R&D Systems™ Recombinant Human R-Spondin 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	90%, by SDS-PAGE under reducing conditions and visualized by silver stain.
Conjugate	Unconjugated
Molecular Weight (g/mol)	25.6 kDa
Gene ID (Entrez)	284654
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	Chinese Hamster Ovary cell line, CHO-derived human R-Spondin 1 protein Ser21-Ala263
Recombinant	Recombinant
Name	R-Spondin 1

Invitrogen™ Lectin PHA-L From Phaseolus vulgaris (red kidney bean), Alexa Fluor™ 488 Conjugate

Suitable for use in cell tracing and tracking, cellular imaging and flow cytometry

Pricing & Availability

Gibco™ Human VEGF-165 Recombinant Protein

Recombinant Protein

Pricing & Availability
Specifications

Protein Family	Growth Factors & Receptors
Purity or Quality Grade	≥95% by SDS-PAGE and HPLC
Conjugate	Unconjugated
Form	Lyophilized
Common Name	VEGF-165
Molecular Weight (g/mol)	40 kDa
Endotoxin Level	<0.1 ng/μg
Activity	ED50 < 6 ng/mL; determined by the dose-dependent proliferation of HUVECs.
Endotoxin Concentration	<0.1 ng/μg
Expression System	HEK293 cells
For Use With (Application)	Bioactivity
Name	Human VEGF-165
Purification Method	Purified
Gene Alias	H-VEGF-165; MVCD1; M-VEGF-165; vascular endothelial growth factor 165b; vascular endothelial growth factor A; vascular endothelial growth factor A121; vascular endothelial growth factor A165; vascular permeability factor; VEGF; VEGF164; VEGF165; Vegfa; VEGF-A; VPF
Protein Form	Recombinant, Ligand
Biological Activity	ED50 < 6 ng/mL; determined by the dose-dependent proliferation of HUVECs.
Formulation	Protein with no preservative
Classification	Carrier-Free
Research Category	Oncology, Angiogenesis, Stem Cell Research, Differentiation, Inflammation
Specific Activity	1.0 x 10⁶ - 1.7 x 10⁵ units⁄mg
Species	Human
Recombinant	Recombinant
Shipping Condition	Wet Ice
Content And Storage	4°C
Bioassay	Proliferation of HUVECs (Human Umbilical Vein Endothelial Cells)
Gene Symbol	Vegfa
Sequence	APMAEGGGQN HHEVVKFMDV YQRSYCHPIE TLVDIFQEYP DEIEYIFKPS CVPLMRCGGC CNDEGLECVP TEESNITMQI MRIKPHQGQH IGEMSFLQHN KCECRPKKDR ARQENPCGPC SERRKHLFVQ DPQTCKCSCK NTDSRCKARQ LELNERTCRC DKPRR
Storage Requirements	4°C
Protein Subtype	VEGF (Vascular Endothelial Growth Factor)
Accession Number	P15692
Regulatory Status	RUO
Product Type	Protein
Gene ID (Entrez)	7422
Product Line	Gibco

R&D Systems™ Recombinant Mouse 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

Gibco™ Human TRANCE (RANKL) Recombinant Protein

Recombinant Protein

Pricing & Availability
Specifications

Purity or Quality Grade	≥98% by SDS-PAGE and HPLC
Conjugate	Unconjugated
pH Range	7.6
Form	Lyophilized
Molecular Weight (g/mol)	20 kDa
Common Name	RANKL (RANK Ligand)
Gene Symbol	TNFSF11
Activity	Determined by the dose-dependent ability to induce reporter gene in HT-29 NF-κB Luc reporter cells.
Endotoxin Concentration	<0.1 ng/μg
Storage Requirements	-20°C
Sequence	Human TRANCE recombinant protein contains 176 amino acids
Expression System	E. coli
For Use With (Application)	Bioactivity
Name	Human TRANCE (RANKL)
Accession Number	O14788
Regulatory Status	RUO
Purification Method	Purified
Gene Alias	CD254; H-RANK-L; hRANKL2; Ly109l; M-Rank-L; ODF; OPG; OPG ligand; OPGL; OPTB2; Osteoclast differentiation factor; osteoprotegerin ligand; Rankl; rank-l; receptor activator of NF-kappaB ligand; receptor activator of nuclear factor kappa B ligand; receptor activator of nuclear factor kappa-B ligand; RP11-86N24.2; sOdf; srankl; TNF-related activation-induced cytokine; Tnfsf11; TNLG6B; Trance; tumor necrosis factor (ligand) superfamily member 11; tumor necrosis factor (ligand) superfamily, member 11; tumor necrosis factor ligand 6B; tumor necrosis factor ligand superfamily member 11; Tumor necrosis factor ligand superfamily member 11, membrane form; Tumor necrosis factor ligand superfamily member 11, soluble form; tumor necrosis factor superfamily member 11; tumor necrosis factor-related activation-induced cytokine
Product Type	Protein
Gene ID (Entrez)	8600
Formulation	5mM sodium phosphate with 75mM NaCl and no preservative; pH 7.6
Recombinant	Recombinant

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Recombinant Proteins

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

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

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

R&D Systems™ Recombinant Human IL-15 Protein GSA/VA ContractAvailable on GSA/VA contract for Federal Government customers.Learn More

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

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

R&D Systems™ Recombinant Human Cathepsin B Protein

R&D Systems™ Recombinant Human M-CSF Protein

R&D Systems™ Recombinant Mouse IL-6 Protein

R&D Systems™ Recombinant Human IL-15 Protein

R&D Systems™ Recombinant Human IL-4 Protein

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