Recombinant Human C-C Motif Chemokine 4 Protein (CCL4), Active

Name: Recombinant Human C-C Motif Chemokine 4 Protein (CCL4), Active
Brand: Beta LifeScience
SKU: BLC-05514P
Availability: InStock

Collections: Chemokines and receptors, Cytokines, Cytokines and growth factors, Recombinant proteins

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Product Overview

Description	Recombinant Human C-C Motif Chemokine 4 Protein (CCL4), Active is produced by our E.coli expression system. This is a full length protein.
Purity	Greater than 96% as determined by SDS-PAGE and HPLC.
Endotoxin	Less than 1.0 EU/μg as determined by LAL method.
Activity	Fully biologically active when compared to standard. The biological activity determined by a chemotaxis bioassay using human peripheral blood monocytes is in a concentration range of 5.0-20 ng/ml.
Uniprotkb	P13236
Target Symbol	CCL4
Synonyms	MIP 1 beta; Secreted protein G 26; ACT 2; ACT-2; ACT2; AT744.1; AT744.2; C C motif chemokine 4; C C motif chemokine 4 like; C C motif chemokine ligand 4 like 1; C C motif chemokine ligand 4 like 2; CC chemokine ligand 4; CC chemokine ligand 4L1; CC chemokine ligand 4L1d2; CC chemokine ligand 4L2; CCL4; CCL4_HUMAN; ccl4l 1; CCL4L; CCL4L1; Chemokine (C C motif) ligand 4; Chemokine (C C motif) ligand 4 like 1; Chemokine (C C motif) ligand 4 like 1; telomeric; Chemokine (C C motif) ligand 4 like 2; Chemokine CC Motif Ligand 4; G 26; G 26 T lymphocyte secreted protein; G-26 T-lymphocyte-secreted protein; HC21; Immune activation 2; LAG 1; LAG-1; LAG1; Lymphocyte activation gene 1; Lymphocyte activation gene 1 protein; Macrophage inflammatory protein 1 beta; Macrophage inflammatory protein 1-beta; Macrophage inflammatory protein 1b2; MGC104418; MGC126025; MGC126026; MIP-1-beta; MIP-1-beta(1-69); MIP-1-beta(3-69); MIP1 beta; MIP1B; MIP1B1; Monocyte adherence induced protein 5 alpha; PAT 744; Protein H400; SCYA2; SCYA4; SCYA4L; SCYA4L1; SCYA4L2; SCYQ4L2; Secreted protein G 26; Secreted protein G26; SIS gamma; SIS-gamma; Small inducible cytokine A4 (homologous to mouse Mip 1b); Small inducible cytokine A4; small inducible cytokine A4-like; Small-inducible cytokine A4; T cell activation protein 2; T-cell activation protein 2
Species	Homo sapiens (Human)
Expression System	E.coli
Tag	Tag-Free
Complete Sequence	APMGSDPPTA CCFSYTARKL PRNFVVDYYE TSSLCSQPAV VFQTKRSKQV CADPSESWVQ EYVYDLELN
Expression Range	24-92aa
Protein Length	Full Length of Mature Protein
Mol. Weight	7.8 kDa
Research Area	Immunology
Form	Lyophilized powder
Buffer	0.2 μm filtered 20 mM PB, pH 7.4, 150 mM NaCl, lyophilized
Reconstitution	Briefly centrifuged the vial prior to opening to bring the contents to the bottom. Reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL. It is recommended to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20°C/-80°C. The default final concentration of glycerol is 50%.
Storage	1. Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. 2. Avoid repeated freeze-thaw cycles. 3. Store working aliquots at 4°C for up to one week. 4. In general, protein in liquid form is stable for up to 6 months at -20°C/-80°C. Protein in lyophilized powder form is stable for up to 12 months at -20°C/-80°C.
Notes	Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.

Target Details

Target Function	Monokine with inflammatory and chemokinetic properties. Binds to CCR5. One of the major HIV-suppressive factors produced by CD8+ T-cells. Recombinant MIP-1-beta induces a dose-dependent inhibition of different strains of HIV-1, HIV-2, and simian immunodeficiency virus (SIV). The processed form MIP-1-beta(3-69) retains the abilities to induce down-modulation of surface expression of the chemokine receptor CCR5 and to inhibit the CCR5-mediated entry of HIV-1 in T-cells. MIP-1-beta(3-69) is also a ligand for CCR1 and CCR2 isoform B.
Subcellular Location	Secreted.
Protein Families	Intercrine beta (chemokine CC) family
Database References	HGNC: 10630 OMIM: 182284 KEGG: hsa:388372 STRING: 9606.ENSP00000250151 UniGene: Hs.449862

Gene Functions References

identified 13 ADCC-activated genes. Six gene expression assays including 8 of the 13 genes (CCL3, CCL4/CCL4L1/CCL4L2, CD160, IFNG, NR4A3 and XCL1/XCL2) were analyzed in 127 kidney biopsies PMID: 25449536
PCR results show that lower copy numbers of CCL4L1 are observed in the Caucasian population nd higher copy numbers are observed in the Black population of South Africa. PMID: 24727646
CCL4L1 allele frequency is higher in severe psoriasis, whereas CCL4L2 is more frequent in patients with a milder disease. PMID: 21614014
multiple copies of CCL3L1 and CCL4L1 present in a single diploid genome are the result of segmental duplication at chromosome 17q12 PMID: 15028295

FAQs

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Proteins are sensitive to heat, and freeze-drying can preserve the activity of the majority of proteins. It improves protein stability, extends storage time, and reduces shipping costs. However, freeze-drying can also lead to the loss of the active portion of the protein and cause aggregation and denaturation issues. Nonetheless, these adverse effects can be minimized by incorporating protective agents such as stabilizers, additives, and excipients, and by carefully controlling various lyophilization conditions.

Commonly used protectant include saccharides, polyols, polymers, surfactants, some proteins and amino acids etc. We usually add 8% (mass ratio by volume) of trehalose and mannitol as lyoprotectant. Trehalose can significantly prevent the alter of the protein secondary structure, the extension and aggregation of proteins during freeze-drying process; mannitol is also a universal applied protectant and fillers, which can reduce the aggregation of certain proteins after lyophilization.

Our protein products do not contain carrier protein or other additives (such as bovine serum albumin (BSA), human serum albumin (HSA) and sucrose, etc., and when lyophilized with the solution with the lowest salt content, they often cannot form A white grid structure, but a small amount of protein is deposited in the tube during the freeze-drying process, forming a thin or invisible transparent protein layer.

Reminder: Before opening the tube cap, we recommend that you quickly centrifuge for 20-30 seconds in a small centrifuge, so that the protein attached to the tube cap or the tube wall can be aggregated at the bottom of the tube. Our quality control procedures ensure that each tube contains the correct amount of protein, and although sometimes you can't see the protein powder, the amount of protein in the tube is still very precise.

To learn more about how to properly dissolve the lyophilized recombinant protein, please visit Lyophilization FAQs.