KC-1854

293T-GPRC5B Cell Line

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Background of 293T-GPRC5B Cell Line

GPRC5B encodes G protein-coupled receptor class C group 5 member B and is also known as MLC3. Members of this superfamily are characterized by a signature 7-transmembrane domain motif. The encoded protein may modulate insulin secretion and increased protein expression is associated with type 2 diabetes. Alternative splicing results in multiple transcript variants.

Specifications

Catalog NumberKC-1854
Cell Line Name293T-GPRC5B Cell Line
NCBI/UniProt Accession NumberNM_016235.3
Host Cell Line293T
Description293T-GPRC5B is a stable engineered cell line expressing human GPRC5B
QuantityOne vial of frozen cells (≥2×10⁶ cells/vial)
StabilityStable in culture over a minimum of 10 passages
ApplicationDrug screening and biological assays
Freezing Medium70% DMEM+20% FBS+10% DMSO
Propagation MediumDMEM+10%FBS+1μg/mL Puromycin
Selection MarkerPuromycin
MorphologyEpithelial
SubcultureSplit at a ratio of 1:4–1:6 every 2–3 days
Incubation37 °C with 5% CO₂
StorageLiquid nitrogen immediately upon receiving
Doubling TimeEstimated 19–36 hours
Mycoplasma StatusNegative
In Vivo ValidationNA

Cell Line Generation

293T-GPRC5B cell line was generated using a lentiviral vector expressing the human GPRC5B sequence.

Characterization

Figure 1:Characterization of 293T-GPRC5B cell line stable clone using FACS.

Figure 2: Characterization of 293T-GPRC5B cell line stable clone using PCR sequencing.

Cell Resuscitation

  1. Pre-warm complete culture medium (basal medium and 10% FBS) in a 37°C water bath.
  2. Rapidly thaw the cryovial in a 37°C water bath for 1-2 minutes with gentle agitation.
  3. Transfer the vial to a biosafety cabinet, and disinfect the exterior with 70% ethanol.
  4. Aseptically transfer the cell suspension dropwise into a sterile centrifuge tube containing 9.0 mL of pre-warmed complete medium.
  5. Centrifuge at approximately 125 × g for 5–7 minutes at room temperature, carefully aspirate the supernatant without disturbing the cell pellet.
  6. Gently resuspend the pellet in an appropriate volume of complete medium and transfer the suspension into a T25 flask.
  7. Incubate the flask in a 37°C in a humidified 5% CO₂ incubator.
  8. Assess cell viability and morphology after 24 hours. If cells appear healthy, replace the medium with fresh medium supplemented with the appropriate selective antibiotic.
  9. Subculture the cells at a ratio of 1:4–1:6 every 2–3 days upon reaching 80%–90% confluency.

Cell Freezing

  1. Prepare the freezing medium (70% basal medium, 20% FBS and 10% DMSO) freshly before use.
  2. Pre-chill the freezing medium on ice and label the cryovials accordingly.
  3. Transfer the cell suspension to a sterile conical tube and perform a cell count to determine total viability and density.
  4. Centrifuge the cells at 250×g for 5 minutes at room temperature; carefully aspirate the supernatant.
  5. Gently resuspend the pellet in chilled freezing medium, ensuring a minimum cell density of 3×10⁶ cells/mL.
  6. Aliquot 1 mL of the cell suspension into each pre-labeled cryovial.
  7. Place the cryovials into a CoolCell® container and store at -80°C overnight for controlled-rate cooling.
  8. Transfer the cryovials to the liquid nitrogen for long-term storage the following day.

References

  1. Hirabayashi Y, Kim YJ Roles of GPRC5 family proteins: focusing on GPRC5B and lipid-mediated signalling. Journal of biochemistry. 2020 Jun 1;167(6):541-547. PMID: 32154895. doi: 10.1093/jb/mvaa030.
  2. Kohyama-Koganeya A [Regulation of energy metabolism by BOSS/GPRC5B]. Seikagaku. The Journal of Japanese Biochemical Society. 2017 Feb;89(1):98-101. PMID: 29624967.
  3. Kostritskaia Y, Gaitán-Peñas H, Bertelli S et al. A GPRC5B-Fyn signaling axis regulates VRAC activity by targeting LRRC8A. Proceedings of the National Academy of Sciences of the United States of America. 2026 Oct 20;123(42):e2606899123. PMID: 42879478. doi: 10.1073/pnas.2606899123.

Use License Agreement

Research Use Only.
Not for use in diagnostic procedures or therapeutic applications.
Redistribution of the cell line or its derivatives is prohibited without prior written permission from Kyinno Biotechnology.