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1 – 15 of 362 results
1

R&D Systems™ Recombinant Human FGF basic/FGF2/bFGF (146 aa) Protein

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

2

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

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
3

R&D Systems™ Recombinant Human FGF basic/FGF2/bFGF (145 aa) Protein

Measured in a cell proliferation assay using NR6R-3T3 mouse fibroblast cells.

Purity or Quality Grade >95%, by SDS-PAGE under reducing conditions and visualized by silver stain.
Conjugate Unconjugated
Molecular Weight (g/mol) M.W. (theoretical): 16 kDa
Gene Symbol FGF2
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 FGF basic/FGF2/bFGF
Source E. coli-derived human FGF basic/FGF2/bFGF protein Ala144-Ser288
Accession Number NP_001997
Gene ID (Entrez) 2247
Formulation Lyophilized from a 0.2 μm filtered solution in Tris-HCl and NaCl.
Reconstitution Reconstitute at 100 μg/mL in sterile PBS.
Species Human
4

R&D Systems™ Recombinant Human IL-4 Protein

Carrier Free Recombinant Protein

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
5

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!

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
6

R&D Systems™ Recombinant Human FGF basic/FGF2/bFGF (146 aa) Protein

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

7

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!

8

R&D Systems™ Recombinant Human/Mouse/Rat Activin A Protein

CHO derived

Purity or Quality Grade >95%, by SDS-PAGE with silver staining.
Conjugate Unconjugated
Molecular Weight (g/mol) M.W. (Observed): 14 kDa, reducing conditions 24 kDa, non-reducing conditions; M.W. (theoretical): 13 kDa (monomer)
Gene Symbol INHBA
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 Activin A
Source Chinese Hamster Ovary cell line, CHO-derived Activin A protein Gly311-Ser426
Name Activin A
Accession Number P08476
Gene ID (Entrez) 3624
Reconstitution Reconstitute at 100-500 μg/mL in sterile 4 mM HCl.
Structural Form Disulfide-linked homodimer
Recombinant Recombinant
9

R&D Systems™ Recombinant Human IL-6 (HEK293-expressed) Protein

Measured in a cell proliferation assay using T1165.85.2.1 mouse plasmacytoma cells. ED50 for this effect is 0.1 to 0.6 ng/mL

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) M.W. (Observed): 22 kDa, reducing conditions; M.W. (theoretical): 20.8 kDa
Endotoxin Level <0.10 EU per 1 μg of the protein by the LAL method.
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 Human embryonic kidney cell, HEK293-derived human IL-6 protein Met1-Met212
Name B cell stimulatory factor-2, B-cell differentiation factor, BSF2, BSF-2, BSF2CTL differentiation factor, CDF, HGFHSFIFNB2Hybridoma growth factor, IFNB2, IFN-beta-2, IL6, IL-6B-cell stimulatory factor 2, Interferon beta-2, interleukin 6 (interferon, beta 2), interleukin BSF-2, interleukin-6, MGI-2A
Accession Number P05231
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.
Reconstitution Reconstitute at 100 μg/mL in PBS.
Species Human
10

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.

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
11

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

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
12

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

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
13

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!

14

R&D Systems™ Recombinant Human IL-2 Protein

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

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
15

R&D Systems™ Recombinant Human IL-23 (CHO Expressed) Protein

Analyzed by SEC-MALS

Purity or Quality Grade >95%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie™ Blue Staining.
Conjugate Unconjugated
Gene Alias IL23, IL-23, IL-23 p19/IL-12 p40, IL-23 A, IL-23-A, IL-23p19, IL-23p19/IL-12p40, IL23P19P19, interleukin 23 p19 subunit, interleukin 23, alpha subunit p19, interleukin-23 subunit alpha, Interleukin-23 subunit p19, JKA3 induced upon T-cell activation, MGC79388, SGRF, SGRFIL-23 subunit alpha
Molecular Weight (g/mol) MolecularWeight-observed: 59-68 kDa, 46-52 kDa & 28-33 kDa, under reducing conditions., MolecularWeight-theroretical: 55 kDa (IL-23 single chain), 37 kDa (p40) & 19 kDa (p19)
Gene ID (Entrez) 51561
Formulation Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose.
Reconstitution Reconstitute 10 μg size at 100 μg/mL in PBS. Reconstitute all the other sizes (at 500 μg/mL in PBS.)
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-23 A/IL-23 P19
Source Chinese Hamster Ovary cell line, CHO-derived human IL-23 protein Human IL-23 p40 (Ile23-Ser328) Accession # P29460.1 GSGSSRGGSGSGGSGGGGSKL Human IL-23 p19 (Arg20-Pro189) Accession # AAG37232.1 (C-terminus)