Incidental Mutation 'R0022:Ggct'
ID 15226
Institutional Source Beutler Lab
Gene Symbol Ggct
Ensembl Gene ENSMUSG00000002797
Gene Name gamma-glutamyl cyclotransferase
Synonyms A030007L17Rik, Ggc, Gctg
MMRRC Submission 038317-MU
Accession Numbers
Essential gene? Probably non essential (E-score: 0.115) question?
Stock # R0022 (G1)
Quality Score
Status Validated
Chromosome 6
Chromosomal Location 54962080-54969947 bp(-) (GRCm39)
Type of Mutation nonsense
DNA Base Change (assembly) C to A at 54962887 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Glutamic Acid to Stop codon at position 175 (E175*)
Ref Sequence ENSEMBL: ENSMUSP00000120154 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000131475] [ENSMUST00000203208] [ENSMUST00000204301]
AlphaFold Q9D7X8
Predicted Effect noncoding transcript
Transcript: ENSMUST00000002874
Predicted Effect probably null
Transcript: ENSMUST00000131475
AA Change: E175*
SMART Domains Protein: ENSMUSP00000120154
Gene: ENSMUSG00000002797
AA Change: E175*

DomainStartEndE-ValueType
Pfam:GGACT 19 143 2.2e-11 PFAM
Pfam:AIG2_2 78 160 3.1e-32 PFAM
Predicted Effect noncoding transcript
Transcript: ENSMUST00000136527
Predicted Effect probably benign
Transcript: ENSMUST00000203208
SMART Domains Protein: ENSMUSP00000145492
Gene: ENSMUSG00000002797

DomainStartEndE-ValueType
Pfam:AIG2_2 63 124 4.9e-16 PFAM
Predicted Effect probably benign
Transcript: ENSMUST00000204301
SMART Domains Protein: ENSMUSP00000145291
Gene: ENSMUSG00000002797

DomainStartEndE-ValueType
PDB:2RBH|B 1 67 2e-32 PDB
Predicted Effect noncoding transcript
Transcript: ENSMUST00000204770
Meta Mutation Damage Score 0.9755 question?
Coding Region Coverage
  • 1x: 82.0%
  • 3x: 74.9%
  • 10x: 56.1%
  • 20x: 37.0%
Validation Efficiency 97% (90/93)
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] The protein encoded by this gene catalyzes the formation of 5-oxoproline from gamma-glutamyl dipeptides, the penultimate step in glutathione catabolism, and may play a critical role in glutathione homeostasis. The encoded protein may also play a role in cell proliferation, and the expression of this gene is a potential marker for cancer. Pseudogenes of this gene are located on the long arm of chromosome 5 and the short arm of chromosomes 2 and 20. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene. [provided by RefSeq, Dec 2010]
Allele List at MGI

All alleles(3) : Targeted(2) Gene trapped(1)

Other mutations in this stock
Total: 40 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Aste1 T A 9: 105,273,823 (GRCm39) L21* probably null Het
Btbd10 G A 7: 112,924,988 (GRCm39) Q287* probably null Het
Cd244a A G 1: 171,401,330 (GRCm39) D48G probably benign Het
Cdc20 T A 4: 118,292,686 (GRCm39) H354L probably damaging Het
Cdhr3 G A 12: 33,132,263 (GRCm39) T120I probably damaging Het
Chd8 A T 14: 52,470,312 (GRCm39) S433T probably benign Het
Col1a2 G A 6: 4,518,822 (GRCm39) probably benign Het
Col9a3 A G 2: 180,261,549 (GRCm39) D613G probably damaging Het
Coro7 C T 16: 4,451,168 (GRCm39) R507H probably benign Het
Cracdl C T 1: 37,667,326 (GRCm39) R240Q probably damaging Het
Csf1 A T 3: 107,661,178 (GRCm39) V113E probably damaging Het
Dclre1b G T 3: 103,710,464 (GRCm39) H482Q probably benign Het
Ephb6 T C 6: 41,591,503 (GRCm39) V220A probably damaging Het
Gm5316 T C 6: 122,877,354 (GRCm39) noncoding transcript Het
Gzmn A G 14: 56,404,382 (GRCm39) S152P probably damaging Het
Hoxa7 T C 6: 52,194,363 (GRCm39) N8S probably damaging Het
Il12rb2 A G 6: 67,275,903 (GRCm39) F630S probably damaging Het
Kit A G 5: 75,783,657 (GRCm39) N378S probably benign Het
Lrp1b A T 2: 40,888,050 (GRCm39) probably benign Het
Ltbp1 T A 17: 75,671,355 (GRCm39) V1194D probably damaging Het
Mc5r T G 18: 68,471,853 (GRCm39) S71A probably benign Het
Mcc C G 18: 44,652,583 (GRCm39) probably benign Het
Naa25 C A 5: 121,556,039 (GRCm39) L276M probably damaging Het
Nlrp1b T G 11: 71,052,755 (GRCm39) K888T possibly damaging Het
Pabpc6 A T 17: 9,888,145 (GRCm39) N135K probably benign Het
Pik3r2 A G 8: 71,223,545 (GRCm39) F346S probably damaging Het
Pkd1 T C 17: 24,813,793 (GRCm39) W4086R probably damaging Het
Pmfbp1 C T 8: 110,252,039 (GRCm39) R395W probably damaging Het
Ppp1ca T G 19: 4,244,580 (GRCm39) V213G possibly damaging Het
Ptpro T A 6: 137,420,592 (GRCm39) V1007D probably damaging Het
Rapgef2 G A 3: 78,995,207 (GRCm39) R814C probably damaging Het
Rnasel A T 1: 153,636,521 (GRCm39) I634F probably damaging Het
Rnf157 A T 11: 116,240,276 (GRCm39) probably benign Het
Ryr3 A G 2: 112,471,011 (GRCm39) S4567P probably damaging Het
Sephs1 A G 2: 4,904,371 (GRCm39) T250A probably benign Het
Smcr8 T A 11: 60,671,185 (GRCm39) W778R probably damaging Het
Stat1 T A 1: 52,179,789 (GRCm39) L333Q probably damaging Het
Taar1 G T 10: 23,796,625 (GRCm39) A108S probably benign Het
Tro C G X: 149,430,508 (GRCm39) probably benign Het
Ubr1 A T 2: 120,791,654 (GRCm39) probably benign Het
Other mutations in Ggct
AlleleSourceChrCoordTypePredicted EffectPPH Score
R0022:Ggct UTSW 6 54,962,887 (GRCm39) nonsense probably null
R1109:Ggct UTSW 6 54,966,554 (GRCm39) splice site probably benign
R2874:Ggct UTSW 6 54,969,759 (GRCm39) missense probably damaging 1.00
R9502:Ggct UTSW 6 54,962,872 (GRCm39) missense possibly damaging 0.89
Protein Function and Prediction

GGCT catalyzes the formation of 5-oxoproline (pyroglutamic acid) from gamma-glutamyl dipeptides (1). Oakley et al. proposed that GGCT functions in glutathione homeostasis (1). In a cell-free system, GGCT induced the release of cytochrome c from mitochondria and functions in geranylgeraniol-induced apoptosis of human leukemia U937 cells (2).

Expression/Localization

GGCT is moderately expressed in several tissues, with highest levels observed in the bladder and salivary gland (1). In another study, high expression of Ggct was observed in the kidney and liver (3).  In situ hybridization detected Ggct mRNA in the cytoplasm of liver hepatocytes and in the outer layer of the outer zone of the medulla of the kidney (3).

References
Posted On 2012-12-12
Science Writer Anne Murray