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C57BL/6JCya-Gartem1flox/Cya
Common Name:
Gart-flox
Product ID:
S-CKO-18707
Background:
C57BL/6JCya
Product Type
Age
Genotype
Sex
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Basic Information
Strain Name
Gart-flox
Strain ID
CKOCMP-14450-Gart-B6J-VB
Gene Name
Gart
Product ID
S-CKO-18707
Gene Alias
Gaps; Prgs
Background
C57BL/6JCya
NCBI ID
14450
Modification
Conditional knockout
Chromosome
16
Phenotype
MGI:95654
Document
Click here to download >>
Application
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Rare Disease Data Center >>
Note
Note: When using this mouse strain in a publication, please cite “C57BL/6JCya-Gartem1flox/Cya mice (Catalog S-CKO-18707) were purchased from Cyagen.”
Strain Description
Ensembl Number
ENSMUST00000023684
NCBI RefSeq
NM_010256
Target Region
Exon 3~4
Size of Effective Region
~1.0 kb
Detailed Document
Click here to download >>
Overview of Gene Research
Gart, or glycinamide ribonucleotide transformylase, is a trifunctional polypeptide with phosphoribosylglycinamide formyltransferase, phosphoribosylglycinamide synthetase, and phosphoribosylaminoimidazole synthetase activity. It is essential for de novo purine biosynthesis and is highly conserved in vertebrates [3]. Gart is involved in multiple signaling pathways, such as the Wnt/β -catenin pathway, and plays a significant role in various biological processes and disease conditions.

In colorectal cancer, Gart has a novel methyltransferase function. Its enzymatic activity center is at the E948 site, and it enhances the stability of RUVBL1 through methylating its K7 site, aberrantly activating the Wnt/β -catenin signaling pathway to promote tumor stemness. Pemetrexed, a GART -targeting compound, combined with other chemotherapy drugs can suppress tumor growth [1]. In multiple myeloma, GART promotes malignancy via tumor stemness by activating the HSP90α/CDK6/β -catenin axis, and its inhibitor pemetrexed can suppress cell proliferation and tumor growth [4]. In non-small cell lung cancer, GART promotes cell proliferation and migration by targeting the PAICS-Akt-β -catenin pathway [7]. In luminal A ERα-expressing breast cancer, inhibition of GART induces ERα degradation and prevents cell proliferation, and GART inhibitors can be a novel strategy for treating primary and metastatic breast cancers [8].

In Drosophila, Gart is expressed in the glia, fat body, and gut, positively regulating feeding behavior and energy homeostasis [2]. In rat spinal cord injury, GART expression changes dynamically, and its knockdown in astrocytes affects the release of pro-inflammatory factors [3]. In colitis, GART mediates the renewal of the intestinal epithelial barrier via the p38/p53/PUMA cascade [5]. Also, VGLL3 in cancer cells increases the dependency on de novo nucleotide synthesis by inducing GART expression [6].

In conclusion, Gart is crucial for de novo purine biosynthesis and is involved in multiple biological processes and diseases. Studies, including those using potential gene-knockout or other loss-of-function models, have revealed its role in cancer development, feeding behavior, energy homeostasis, inflammation, and epithelial barrier renewal. Targeting Gart shows promise as a therapeutic strategy for several cancers and may offer new insights into treating other related diseases.

References:
1. Tang, Chao, Ke, Mengying, Yu, Xichao, Gu, Chunyan, Yang, Ye. 2023. GART Functions as a Novel Methyltransferase in the RUVBL1/β-Catenin Signaling Pathway to Promote Tumor Stemness in Colorectal Cancer. In Advanced science (Weinheim, Baden-Wurttemberg, Germany), 10, e2301264. doi:10.1002/advs.202301264. https://pubmed.ncbi.nlm.nih.gov/37439412/
2. He, Lei, Wu, Binbin, Shi, Jian, Du, Juan, Zhao, Zhangwu. 2023. Regulation of feeding and energy homeostasis by clock-mediated Gart in Drosophila. In Cell reports, 42, 112912. doi:10.1016/j.celrep.2023.112912. https://pubmed.ncbi.nlm.nih.gov/37531254/
3. Zhang, Dongmei, Yue, Ying, Jiang, Shengyang, Tao, Tao, Gu, Xingxing. 2014. GART expression in rat spinal cord after injury and its role in inflammation. In Brain research, 1564, 41-51. doi:10.1016/j.brainres.2014.03.044. https://pubmed.ncbi.nlm.nih.gov/24709117/
4. Qian, Jinjun, Meng, Han, Wang, Ze, Yang, Ye, Gu, Chunyan. 2025. GART promotes multiple myeloma malignancy via tumor stemness mediated by activating the HSP90α/CDK6/β-catenin axis. In European journal of pharmacology, 996, 177584. doi:10.1016/j.ejphar.2025.177584. https://pubmed.ncbi.nlm.nih.gov/40185325/
5. Bai, Jian-An, Jie, Hua, Wei, Sun, Guo, Huarui, Tang, Qiyun. . GART mediates the renewal of intestinal epithelial barrier via p38/p53/PUMA cascade in colitis. In Apoptosis : an international journal on programmed cell death, 21, 1386-1397. doi:. https://pubmed.ncbi.nlm.nih.gov/27718035/
6. Kawamura, Tomohiro, Takehora, Yuki, Hori, Naoto, Takano, Hiroyuki, Yamaguchi, Noritaka. 2022. VGLL3 increases the dependency of cancer cells on de novo nucleotide synthesis through GART expression. In Journal of cellular biochemistry, 123, 1064-1076. doi:10.1002/jcb.30251. https://pubmed.ncbi.nlm.nih.gov/35434822/
7. Chen, Zhuo, Ding, Yu-Heng, Zhao, Mei-Qi, Qian, Xiang, Ji, Xu-Ming. 2025. GART promotes the proliferation and migration of human non-small cell lung cancer cell lines A549 and H1299 by targeting PAICS-Akt-β-catenin pathway. In Frontiers in oncology, 15, 1543463. doi:10.3389/fonc.2025.1543463. https://pubmed.ncbi.nlm.nih.gov/40201340/
8. Cipolletti, Manuela, Leone, Stefano, Bartoloni, Stefania, Acconcia, Filippo. 2023. A functional genetic screen for metabolic proteins unveils GART and the de novo purine biosynthetic pathway as novel targets for the treatment of luminal A ERα expressing primary and metastatic invasive ductal carcinoma. In Frontiers in endocrinology, 14, 1129162. doi:10.3389/fendo.2023.1129162. https://pubmed.ncbi.nlm.nih.gov/37143728/
Quality Control Standard
Sperm Test

Pre-cryopreservation: Measurement of sperm concentration, determination of sperm viability.

Post-cryopreservation: A vial of cryopreserved sperms is selected for in-vitro fertilization from each batch.

Environmental Standards:SPF
Available Region:Global
Source:Cyagen
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