Modified Chemokines Exhibit Altered Potency and Specificity

Chemokines are small secreted proteins that function in leukocyte trafficking, recruitment, and activation and have a role in many pathophysiological processes such as infectious and autoimmune diseases, inflammation, cancer, and vascular disease.

Naturally occurring modifications, such as N-terminal truncation, can affect the biological potency and the receptor specificity of chemokines.

R&D Systems is the only company that offers an extensive list of modified chemokines.

Browse our complete line of chemokine-related products

Recombinant Human CXCL1/GRO
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Fig. 1 Recombinant Human CXCL1/GRO alpha chemoattracts BaF3 mouse pro B cells transfected with human CXCR2. The N-terminal truncated version (9196-GR) increases activity by 7-fold.
Recombinant Human CXCL3/GRO
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Fig. 2 Recombinant Human CXCL3/GRO gamma chemoattracts BaF3 mouse pro B cells transfected with human CXCR2. The N-terminal truncated version (8297-GG) increases activity by 7-fold.
Recombinant Mouse LIX
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Fig. 3 Recombinant Mouse LIX chemoattracts BaF3 mouse pro B cells transfected with human CXCR2. The N-terminal truncated form (9194-MC) increases activity by 10-fold.

Available Chemokines and the Effect of Modification

Recombinant Chemokines (amino acids) Species Catalog Number Effect of modification
ED50/Specificity
CCL14a/HCC-1 (aa 20-93) Human 324-HC 200-800 ng/ml
CCL14a/HCC-1 (aa 28-93) Human 1578-HC 0.15-0.75 ng/ml
CCL15/MIP-1 delta (aa 22-113)  Human 363-MG 2-8 ng/ml
CCL15/MIP-1 delta (aa 46-113)  Human 628-LK 0.6-3 ng/ml
CCL24/MPIF-2 (aa 24-119) Mouse 528-MP 150-600 ng/ml
CCL24/MPIF-2 (aa 27-119) Mouse 1017-MP 1-5 ng/ml
CCL4/MIP-1 beta (aa 24-92) Human 271-BME Ligand for CCR5 
CCL4/MIP-1 beta (aa 26-92) Human 8228-MB Ligand for CCR1 and CCR5 
CCL6/C10 (aa 22-116) Mouse 487-C 50-250 ng/ml
CCL6/C10 (aa 42-116) Mouse 3210-c 0.5-2 ng/ml
CCL9/MIP-1 gamma (aa 22-122) Mouse 463-MG 2-10 ng/ml
CCL9/MIP-1 gamma (aa 50-122) Mouse 3217-MG 0.2-1 ng/mL
CX3CL1/Fractalkine (aa 22-102) Mouse 458-MF 10-50 ng/ml
CX3CL1/Fractalkine (aa 25-102) Mouse 571-MF 4-20 ng/ml
CX3CL1/Fractalkine (aa 29-102) Mouse 3215-MF CX3CR1 antagonist
CX3CL1/Fractalkine (aa 22-100) Rat 568-FR 15-75 ng/ml
CX3CL1/Fractalkine (aa 25-100) Rat 537-FT 3-18 ng/ml
CXCL1/GRO alpha (aa 35-107) Human 275-GR 1-4 ng/mL
CXCL1/GRO alpha (aa 39-107) Human 9196-GR 0.15-0.9 ng/mL
CXCL1/KC (aa 20-96) Mouse 453-KC 3-15 ng/ml
CXCL1/KC (aa 29-96) Mouse 1395-KC 0.8-4 ng/ml
CXCL12/SDF1 beta (aa 19-93) Human/Feline 2716-SD 150-600 ng/ml
CXCL12/SDF1 beta (aa 22-93) Human/Feline 351-FS 1-5 ng/ml
CXCL2/GRO beta (aa 35-107) Human 276-GB 3-15 ng/ml
CXCL2/GRO beta (aa 39-107) Human 176-GB 1-5 ng/ml
CXCL3/GRO gamma (aa 35-107) Human 277-GG 2-10 ng/ml
CXCL3/GRO gamma (aa 39-107) Human 8297-GG 0.4-2.4 ng/ml
CXCL5/ENA-70 (aa 45-114) Human 649-EN 0.15-0.75 ng/ml
CXCL5/ENA-74 (aa 41-114) Human 651-NA 0.3-1.5 ng/ml
CXCL5/ENA-78 (aa 37-114) Human 254-XB 3-15 ng/ml
CXCL7/Thymus Chemokine-1 (aa 40-113) Mouse 793-CK 200-1000 ng/ml
CXCL7/Thymus Chemokine-1 (aa 48-109) Mouse 1091-CK 1-5 ng/ml
CXCL8/IL-8 (aa 23-99) Human 618-IL 1-5 ng/ml
CXCL8/IL-8 (aa 28-99) Human 208-IL 0.5-2.5 ng/ml
LIX (aa 45-118) Mouse 433-MC 30-100 ng/mL
LIX (aa 49-118) Mouse 9194-MC 1.5-9 ng/mL

New Chemokines Expressed in Mammalian Cell Lines

Recombinant Protein Species Source Catalog Number
CXCL4 /PF4 (aa 32-101) Human HEK293 7989-P4
XCL2 /SCM-1 beta (aa 22-114) Human HEK293 8418-X2