CHO-K1 Human CCR3 Cell Line
Cat. No： RQP75065
Size： 1 vial of frozen cells (>1E6 per vial in 1 mL)
Unit Price： Contact For Pricing
Description
Product Info
Biological Info
Assay Data
Cell Culture
This product is a CHO-K1 stable cell line that stably expresses tag-free human CCR3 receptor. Upon agonist binding to CCR3, the Gi protein signaling pathway is activated, triggering intracellular calcium mobilization. Therefore, receptor activity can be easily quantified in live cells in a dose-response manner by measuring changes in calcium levels. This cell line is suitable for high-throughput screening (HTS) and receptor functional evaluation assays.
Figure 1. Schematic diagram of CCR3 CHO-K1 cell model
Assay Principle
This schematic shows the IP1 time-resolved fluorescence assay for Gq GPCR detection. Agonist activates Gq signaling to raise cellular IP1. LiCl inhibits IP1 breakdown. Cellular IP1 competes with labeled tracer for anti‑IP1 antibody binding. Time-resolved fluorescence signals are measured to build dose-response curves and quantify receptor activity.
| Cat. No | RQP75065 |
| Product Name | CHO-K1 Human CCR3 Cell Line |
| Engineering method | plasmid transfection |
| Culture Properties | Adherent |
| Stability | 32passages (in-house test, that not means the cell line will be instable beyond the passages we tested.) |
| Mycoplasma Status | Negative |
| Culture Medium | F12K+10%FBS+5ug/ml puromycin |
| Freeze Medium | 90% FBS+10% DMSO |
| Storage Conditions | Liquid nitrogen immediately upon delivery |
| Transducer | Gi |
| Application | Binding assay for CCR3 |
| Safety Precautions |
Wear lab coat, disposable gloves to avoid direct sample contact. For spills: apply disinfectant, allow full inactivation, then clean up. |
For research use only. Not intended for human or animal clinical trials, therapeutic or diagnostic use.
| Target Class | GPCR |
| Family | C-C motif chemokine receptors |
| Sub Family | Class A（Rhodopsin） |
| Gene Name | CCR3 |
| Gene Aliases | CMKBR3；CC-CKR-3；CKR3；CD193 |
| Gene ID | 1232 |
| Accession Number | NM_178329.3 |
| UniProt Number | P51677 |
| Protein Name | C-C motif chemokine receptor 3 |
| Protein Aliases | Eosinophil eotaxin receptor; C-C chemokine receptor type 3 |
| Target Species | Human |
| Host cell | CHO-K1 |
Figure 1. Recombinant CCR3/CHO-K1 stably expressing CCR3
Blue curve: CCR3/CHO-K1 cells stained with anti‑CCR3 antibody, median fluorescence intensity (MFI)=6.84E5. Red curve: Parental CHO cells stained with anti‑CCR3 antibody as negative control, MFI=657. The significant shift of fluorescence signal demonstrates high and stable expression of human CCR3 receptor on the cell membrane.
Cell Resuscitation
1)Rapidly thaw the frozen cells in a 37 °C water bath for approximately 60 seconds. Once thawed (which may take slightly less or more than 60 seconds), immediately transfer the cell suspension from the cryovial into a 15 mL centrifuge tube containing 10 mL of pre-warmed CHO-K1 Human CCR3 Cell Line complete culture medium.
2)Centrifuge cells at 1000 rpm for 5 min to remove medium, then resuspend cells in 5 mL of pre-warmed complete medium.
3)Transfer the cell suspension into a T25 culture flask and incubate at 37 °C with 5% CO₂.
4)After approximately 24–36 hours, replace the medium or passage the cells to remove non-adherent dead cells.
Subculturing procedure
1)When the cell density reaches the appropriate confluency for passaging, wash the cells with PBS, then add 1 mL trypsin to detach the cells. When more than 80% of the cells detach upon gently tapping the culture flask, add complete culture medium to terminate digestion. Gently pipette to obtain a single-cell suspension, transfer to a 15 mL centrifuge tube, and centrifuge at 1000 rpm for 5 minutes.
2)Discard supernatant after centrifugation. Resuspend cells in fresh medium to a single-cell suspension and transfer to a new culture flask for continued growth.
Cell Freezing
After trypsinization and centrifugation of cells from each T75 flask or 10 cm culture dish, discard the supernatant. Add 2 mL of cryopreservation medium (90% FBS + 10% DMSO), gently resuspend thoroughly, and aliquot into two cryovials. Immediately place the cryovials into a controlled-rate freezing container (e.g., Nalgene 5100-0001), fill with isopropanol to the indicated level, and store at −80 °C. After 24 hours, transfer the cryovials to liquid nitrogen for long-term storage.