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LSBio
2401 Fourth Avenue Suite 900
Seattle WA 98121
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Fax:
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Biologically Active Proteins

bioactive proteins
LSBio’s biologically active proteins have been tested to confirm that they retain their functional attributes. Each protein is uniquely tested based upon its particular function, such as measuring the ability of an enzyme to hydrolyze a substrate, using a cell proliferation assay to test a growth factor, or a cytotoxicity assay to test proteins that can cause cell death. These proteins are a cost-effective resource for use in a wide variety of in vitro research applications.

☰ Filters
Proteins (999+)
Native (8)
Recombinant (999+)
Adiponectin (12)
BMP2 (9)
BMP4 (9)
BTC / Betacellulin (10)
CAMK1D (9)
CCL11 / Eotaxin (12)
CCL17 / TARC (9)
CCL2 / MCP1 (13)
CCL20 / MIP-3-Alpha (13)
CCL21 / SLC (11)
CCL22 / MDC (15)
CCL23 / MIP3 (10)
CCL24 / Eotaxin 2 (11)
CCL25 / TECK (9)
CCL28 / MEC (12)
CCL3 / MIP-1-Alpha (14)
CCL4 / MIP-1 Beta (15)
CCL5 / RANTES (12)
CCL7 / MCP3 (12)
CCL8 / MCP2 (12)
CD274 / B7-H1 / PD-L1 (11)
CD40L (14)
CNTF (14)
CSF1 / MCSF (27)
CSF1R / CD115 / FMS (10)
CSF2 / GM-CSF (31)
CSF3 / G-CSF (24)
CTF1 / Cardiotrophin-1 (9)
CX3CL1 / Fractalkine (11)
CXCL1 / GRO Alpha (16)
CXCL10 / IP-10 (14)
CXCL11 (11)
CXCL3 / GRO Gamma (14)
CXCL5 (18)
CXCL7 / PPBP (12)
CXCL9 / MIG (9)
EGF (26)
EPO / Erythropoietin (12)
FGF1 / Acidic FGF (14)
FGF10 (9)
FGF2 / Basic FGF (31)
FGF21 (9)
FGF4 (9)
FGF7 / KGF (15)
FGF8 (9)
FGF9 (15)
FLT3LG / Flt3 Ligand (19)
GDNF (11)
GH / Growth Hormone (10)
HKU1-CoV S1 (9)
IFN Gamma / Interferon Gamma (27)
IFNA2 / Interferon Alpha 2 (9)
IGF1 (27)
IGF2 (9)
IL-10 (30)
IL11 (14)
IL13 (23)
IL15 (16)
IL16 (10)
IL17A (18)
IL17F (10)
IL1A / IL-1 Alpha (17)
IL-1B / IL-1 Beta (31)
IL1F9 (9)
IL1RN (11)
IL2 (32)
IL21 (15)
IL22 (21)
IL3 (28)
IL-33 (13)
IL36A (9)
IL4 (29)
IL5 (17)
IL6 / Interleukin 6 (34)
IL7 (20)
IL8 / Interleukin 8 (15)
IL9 (13)
KDR / VEGFR2 / FLK1 (10)
KITLG / SCF (24)
Leptin (10)
LIF (16)
MIP2 / GRO2 / CXCL2 (19)
NOG / Noggin (15)
NRG1 / Heregulin / Neuregulin (13)
OSM / Oncostatin M (22)
PDGF-AA (9)
PDGF-BB (13)
PRKAA1 / AMPK Alpha 1 (16)
PRL / Prolactin (9)
PTH / Parathyroid Hormone (9)
SARS-CoV-2 S1 (13)
SARS-CoV-2 Spike Glycoprotein (12)
SDF1 / CXCL12 (30)
SHH / Sonic Hedgehog (13)
TGFB1 / TGF Beta 1 (11)
THPO / TPO / Thrombopoietin (18)
TNF Alpha (46)
TNFRSF10B / Killer / DR5 (9)
TNFRSF9 / 4-1BB / CD137 (10)
VEGFA / VEGF (14)
Bind (89)
ELISA (80)
Func (80)
SDS-PAGE (152)
Product Group
All Coronavirus Proteins (11)
Alzheimer's Disease (3)
Coronavirus Antibodies Proteins cDNAs (352)
Cytokine Release Syndrome (328)
Cytokine Release Syndrome Proteins (333)
SARS-CoV-2 Associated Proteins (9)
SARS-CoV-2 Proteins (11)
Animal-free (97)
No (999+)
Yes (4)
10His, C-terminus (5)
10His-SUMO, N-terminus (1)
6His, C-terminus (98)
6His, N-terminus (19)
6His, N-terminus + 6His, C-terminus (2)
6His-AVI, C-terminus (4)
6His-SUMO, N-terminus (3)
8His, C-terminus (1)
AVI, C-terminus (1)
AVI-6His, C-terminus (3)
AVI-Fc, C-terminus (1)
AVI-His, C-terminus (3)
DDK (Flag) (1)
DDK (Flag)-Human ACRP30headless aa 16-108 (1)
DDK (Flag)-Human ACRP30headless aa 18-111 (1)
DDK,N-terminus (1)
Fc, C-terminus (33)
Fc/His,C-terminus (12)
Fc-6His, C-terminus (7)
Fc-AVI, C-terminus (3)
GST (1)
GST, N-terminus (23)
His (108)
His, C-Terminal (18)
His, N-Terminal (8)
His, N-terminus + Human IgG Fc, C-terminus (1)
His,C-terminus (91)
His,N-terminus (9)
His-GST, N-terminus (3)
His-Linker Peptide (1)
His-Myc (1)
Human IgG Fc, C-terminus (21)
Human IgG Fc-6His, C-terminus (1)
Human IgG1 Fc (12)
Human IgG1 Fc, C-terminus (10)
Human IgG1 Fc, N-terminus (13)
Human IgG1 Fc-His, C-terminus (4)
Human Mutant IgG1 Fc (4)
Human Mutant IgG1 Fc, N-terminus (1)
Isoleucine Zipper Motif (1)
mFc, C-terminus (10)
Mouse IgG1 Fc, C-terminus (1)
Mouse IgG2 Fc (10)
Mouse IgG2a Fc, C-terminus (1)
Mouse IgG2a Fc, N-terminus (10)
Mouse Mutant IgG2a Fc (4)
Rabbit IgG Fc, C-terminus (1)
Rabbit IgG Fc, N-terminus (1)
Tat (2)
Bacillus subtilis (3)
Bacteria (1)
Bovine (3)
Chicken (1)
Coronavirus MERS (2)
Coronavirus SARS-CoV (1)
Coronavirus SARS-CoV-2 (27)
Cynomolgus (4)
Dog (1)
E. coli (9)
Escherichia coli (2)
Guinea pig (1)
H. pylori (1)
Hamster-Chinese (1)
Hirudo medicinalis (1)
Horse (2)
Human (999+)
Human Herpesvirus 8 (1)
Marmoset (1)
Monkey-Rhesus (5)
Mouse (603)
Mycobacterium tuberculosis (1)
Mycoplasma (1)
Pig (4)
Poecilobdella viridis (1)
Rabbit (4)
Rat (172)
Rhesus monkey (17)
Rous Sarcoma Virus (1)
Schistosoma japonicum (2)
Sheep (1)
Staphylococcus aureus (1)
Staphylococcus phage 42D (1)
Trichoplusia ni (1)
Virus (10)
Xenopus (1)
Zebrafish (2)
Baculovirus (19)
Cell Culture (1)
CHO Cells (274)
E. coli (999+)
HEK 293 Cells (322)
HeLa Cells (2)
High Five Cells (17)
Human (54)
Human Cells (11)
Insect Cells (428)
Mammalian Cells (113)
NS1 Cells (1)
Pichia pastoris (3)
Sf21 Cells (3)
Sf9 Cells (6)
Yeast (24)
Purified (999+)
Low endotoxin level (999+)
Biologically active (999+)
Animal-free (165)
Select
E. coli
None
Biologically active
Less than 0.1 ng/µg of protein (less than 1EU/µg).
42.7 kDa
2 µg/$252; 10 µg/$325
Select
CHO Cells
None
Biologically active
Less than 0.1 ng/µg of protein (less than 1EU/µg).
17.6 kDa
10 µg/$252; 50 µg/$325
CD8A / CD8 Alpha Protein
Select
HEK 293 Cells
His,C-terminus
Bind ELISA Func SDS-PAGE
Biologically active
Less than 1.0 EU/µg protein (determined by LAL method).
The secreted recombinant mouse CD8a consists of 180 amino acids and has a calculated molecular mass of 20.3 kDa. As a result of glycosylation, the recombinant protein migrates as an approximately 35 kDa protein in SDS-PAGE under reducing conditions.
50 µg/$431; 20 µg/$307
Select
E. coli
None
Biologically active
Less than 0.2 EU/µg protein (determined by LAL method).
17.3 kDa (SDS-PAGE)
50 µg/$441; 10 µg/$275; 1 mg/$2,453
Select
E. coli
None
Biologically active
Less than 0.1 ng/µg of protein (less than 1EU/µg).
17.5 kDa
2 µg/$252; 10 µg/$325
IL-1B / IL-1 Beta Protein
Select
E. coli
None
Biologically active
17.3 kDa
10 µg/$376; 100 µg/$1,213; 500 µg/$2,721
Select
CHO Cells
None
Biologically active
Less than 0.2 EU/µg protein (determined by LAL method).
17 kDa (SDS-PAGE)
50 µg/$373; 10 µg/$284; 1 mg/$2,045
Select
E. coli
None
Biologically active
Less than 0.2 EU/µg protein (determined by LAL method).
17.3 kDa (SDS-PAGE)
50 µg/$505; 10 µg/$284; 1 mg/$2,045
IL-1B / IL-1 Beta Protein - Using the Octet RED System, the affinity constant (Kd) of IL1R2 Protein, Human, Recombinant (Fc Tag) bound IL-1 beta Protein, Human, Recombinant was 6.0 nM.
Select
E. coli
None
Bind ELISA Func SDS-PAGE
Biologically active
The recombinant human IL1ß consisting of 154 amino acids migrates with an apparent molecular mass of 17 kDa as estimated in SDS-PAGE under reducing conditions.
100 µg/$714; 5 µg/$261; 1 mg/$3,099; 20 µg/$354
Select
E. coli
None
Biologically active
Less than 0.1 ng/µg of protein (less than 1EU/µg).
17.4 kDa
2 µg/$252; 10 µg/$325
Select
E. coli
None
Biologically active
Less than 0.1 ng/µg of protein (less than 1EU/µg).
17.3 kDa
2 µg/$252; 10 µg/$325
IL-1B / IL-1 Beta Protein - Biological Activity IL-1beta, Mouse stimulates cell proliferation of D10S cells. The ED 50 for this effect is less than 2pg/mL.
Select
E. coli
None
Biologically active
Less than 0.2 EU/µg protein (determined by LAL method).
17.5 kDa (SDS-PAGE)
50 µg/$505; 10 µg/$284; 1 mg/$2,045
IL-1B / IL-1 Beta Protein
Select
E. coli
None
Biologically active
17.3 kDa
10 µg/$376; 100 µg/$1,058; 500 µg/$2,267
IL-1B / IL-1 Beta Protein
Select
E. coli
None
Biologically active
17.5 kDa
10 µg/$376; 100 µg/$1,058; 500 µg/$2,267
IL-1B / IL-1 Beta Protein - Measured by its ability to induce Interferon gamma secretion by human natural killer lymphoma NK-92 cells. The ED50 for this effect is typically 6-30 ng/mL.
Select
E. coli
None
Bind ELISA Func SDS-PAGE
Biologically active
The recombinant mouse IL1ß consists of 153 amino acids and has a predicted molecular mass of 17.5 kDa. It migrates as an approximately 19 kDa band in SDS-PAGE under reducing conditions as predicted.
5 µg/$261; 20 µg/$354; 100 µg/$714; 1 mg/$3,099
IL-1B / IL-1 Beta Protein - Measured by its binding ability in a functional ELISA. Immobilized human IL1B at 10 µg/mL (100 µl/well) can bind human IL1R1. The EC50 of human IL1R1 is 0.198 µg/mL.
Select
E. coli
His,N-terminus
Bind ELISA Func SDS-PAGE
Biologically active
The recombinant pro form of human IL1ß consisting of 280 amino acids and has a calculated molecular mass of 32.3 kDa. It migrates as an approximately 34 kDa band in SDS-PAGE under reducing conditions.
20 µg/$307; 50 µg/$431; 5 µg/$238
IL-1B / IL-1 Beta Protein - Measured by its ability to induce Interferon gamma secretion by human natural killer lymphoma NK-92 cells. The EC50 for this effect is 0.5-3 ng/mL. The specific activity of Recombinant Human IL-1ß is approximately 9×10E4 IU/µg, which is calibrated against human IL-1ß WHO Standard (NIBSC code: 86/680).
Select
E. coli
None
SDS-PAGE
Biologically active
Less than 0.01 EU/µg protein (determined by LAL method).
The recombinant human IL1B consists of 154 amino acids and predicts a molecular mass of 17.5 kDa
20 µg/$462; 100 µg/$1,046; 500 µg/$2,840; 1 mg/$3,358
IL-1B / IL-1 Beta Protein - D10.G4.1 cell proliferation induced by mouse IL-1β.
Select
E. coli
None
Biologically active
Less than 0.01 ng/µg (Less than 0.1 EU/µg) (determined by LAL method).
The 152 amino acid recombinant protein has a predicted molecular mass of 17,394 Da. The DTT-reduced and the non-reduced protein migrate at approximately 19kDa by SDS-PAGE. The N-terminal amino acid is Valine.
10 µg/$326; 25 µg/$412; 100 µg/$854; 500 µg/$2,003
IL-1B / IL-1 Beta Protein - Recombinant human IL-1β stimulates proliferation of D10.G4.1 cells in a dose-dependent manner. BioLegend€™s protein was compared side-by-side to a competitor€™s equivalent product. The ED50 for this effect is 5 €“ 15 pg/mL.
Select
E. coli
None
Biologically active
Less than 0.01 ng/µg (Less than 0.1 EU/µg) (determined by LAL method).
The 153 amino acid recombinant protein has a predicted molecular mass of 17,376 Da. The DTT-reduced and the non-reduced protein migrate at approximately 18kDa by SDS-PAGE. The N-terminal amino acid is Alanine.
10 µg/$326; 25 µg/$412; 100 µg/$1,017; 500 µg/$2,003
IL-1B / IL-1 Beta Protein
Select
E. coli
None
Biologically active
Less than 1.0 EU/µg protein (determined by LAL method).
~17.5 kDa
10 µg/$357; 100 µg/$1,708; 1 mg/$4,802
IL-1B / IL-1 Beta Protein - (Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel.
Select
E. coli
None
Biologically active
Less than 1.0 EU/µg protein (determined by LAL method).
17.4 kDa
50 µg/$653; 10 µg/$344
Select
HEK 293 Cells
None
Biologically active
Less than 0.2 EU/µg protein (determined by LAL method).
17~22 kDa (SDS-PAGE)
5 µg/$256; 25 µg/$336
Select
E. coli
None
Biologically active
Less than 0.2 EU/µg protein (determined by LAL method).
17.7 kDa (SDS-PAGE)
50 µg/$373; 10 µg/$284; 1 mg/$2,045
Select
CHO Cells
None
Biologically active
Less than 0.2 EU/µg protein (determined by LAL method).
17.4 kDa (SDS-PAGE)
50 µg/$420; 10 µg/$267; 1 mg/$1,965
Select
HEK 293 Cells
None
Biologically active
Less than 1.0 EU/µg protein (determined by LAL method).
10 µg/$428; 100 µg/$1,583
Viewing 1-25 of 3157 product results