Incidental Mutation 'R3619:Gnmt'
ID 268576
Institutional Source Beutler Lab
Gene Symbol Gnmt
Ensembl Gene ENSMUSG00000002769
Gene Name glycine N-methyltransferase
Synonyms glycine N methyl transferase
MMRRC Submission 040676-MU
Accession Numbers
Essential gene? Possibly non essential (E-score: 0.320) question?
Stock # R3619 (G1)
Quality Score 196
Status Not validated
Chromosome 17
Chromosomal Location 47036590-47040091 bp(-) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) G to A at 47039963 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Arginine to Cysteine at position 39 (R39C)
Ref Sequence ENSEMBL: ENSMUSP00000002846 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000002840] [ENSMUST00000002846]
AlphaFold Q9QXF8
PDB Structure Crystal Structure of Mouse Glycine N-Methyltransferase (Tetragonal Form) [X-RAY DIFFRACTION]
Crystal Structure of Mouse Glycine N-Methyltransferase (Monoclinic Form) [X-RAY DIFFRACTION]
Predicted Effect probably benign
Transcript: ENSMUST00000002840
SMART Domains Protein: ENSMUSP00000002840
Gene: ENSMUSG00000002763

DomainStartEndE-ValueType
low complexity region 17 31 N/A INTRINSIC
low complexity region 72 86 N/A INTRINSIC
low complexity region 87 104 N/A INTRINSIC
low complexity region 112 128 N/A INTRINSIC
low complexity region 173 200 N/A INTRINSIC
AAA 463 598 6.1e-7 SMART
AAA 737 875 6e-24 SMART
Blast:AAA 928 973 1e-14 BLAST
Predicted Effect possibly damaging
Transcript: ENSMUST00000002846
AA Change: R39C

PolyPhen 2 Score 0.625 (Sensitivity: 0.87; Specificity: 0.91)
SMART Domains Protein: ENSMUSP00000002846
Gene: ENSMUSG00000002769
AA Change: R39C

DomainStartEndE-ValueType
Pfam:Methyltransf_23 27 217 9e-11 PFAM
Pfam:Methyltransf_31 56 224 1.3e-15 PFAM
Pfam:Methyltransf_18 57 176 1.5e-15 PFAM
Pfam:Methyltransf_25 61 169 1.4e-10 PFAM
Pfam:Methyltransf_12 62 171 4e-12 PFAM
Pfam:Methyltransf_11 62 173 2.4e-11 PFAM
Predicted Effect noncoding transcript
Transcript: ENSMUST00000144964
Predicted Effect noncoding transcript
Transcript: ENSMUST00000147112
Predicted Effect noncoding transcript
Transcript: ENSMUST00000181301
Coding Region Coverage
  • 1x: 99.1%
  • 3x: 98.5%
  • 10x: 97.3%
  • 20x: 95.1%
Validation Efficiency
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] The protein encoded by this gene is an enzyme that catalyzes the conversion of S-adenosyl-L-methionine (along with glycine) to S-adenosyl-L-homocysteine and sarcosine. This protein is found in the cytoplasm and acts as a homotetramer. Defects in this gene are a cause of GNMT deficiency (hypermethioninemia). Alternative splicing results in multiple transcript variants. Naturally occurring readthrough transcription occurs between the upstream CNPY3 (canopy FGF signaling regulator 3) gene and this gene and is represented with GeneID:107080644. [provided by RefSeq, Jan 2016]
PHENOTYPE: Mice homozygous for a null mutation display elevated levels of methionine and S-adenosylmethionine in the liver. Mice homozygous for another null allele exhibit hepatitis, increased hepatic glycogen storage, and hepatocellular carcinoma. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 33 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Ccdc82 T A 9: 13,251,931 (GRCm39) D74E probably benign Het
Chmp3 T A 6: 71,554,809 (GRCm39) I168N probably damaging Het
Dazap1 T C 10: 80,121,194 (GRCm39) probably benign Het
Dpp6 T C 5: 27,926,118 (GRCm39) S673P possibly damaging Het
Enpep G C 3: 129,077,807 (GRCm39) S603R possibly damaging Het
Fgf11 T C 11: 69,690,234 (GRCm39) S118G probably benign Het
Foxi3 T C 6: 70,934,047 (GRCm39) L178P probably damaging Het
Gbx1 G T 5: 24,731,111 (GRCm39) P235Q probably benign Het
Gm8267 A T 14: 44,961,513 (GRCm39) M60K possibly damaging Het
Hnrnpab T C 11: 51,493,438 (GRCm39) N257D possibly damaging Het
Klhl31 G T 9: 77,562,758 (GRCm39) A508S probably benign Het
Lrif1 A G 3: 106,639,862 (GRCm39) K316E probably damaging Het
Magi3 A T 3: 103,961,721 (GRCm39) F436I probably damaging Het
Mef2a G A 7: 66,918,075 (GRCm39) S111L probably benign Het
Micu1 T C 10: 59,604,080 (GRCm39) probably null Het
Mpst A G 15: 78,294,322 (GRCm39) E18G probably damaging Het
Npepps G T 11: 97,139,091 (GRCm39) F160L possibly damaging Het
Or10al2 T A 17: 37,983,531 (GRCm39) F206I probably benign Het
Or5p81 A T 7: 108,267,057 (GRCm39) I145F probably benign Het
Orc6 T C 8: 86,026,623 (GRCm39) probably null Het
Palm3 T A 8: 84,755,973 (GRCm39) V495E probably benign Het
Pam A G 1: 97,762,157 (GRCm39) F809L probably damaging Het
Pcdh15 T C 10: 74,479,227 (GRCm39) V708A probably benign Het
Pcdha12 G A 18: 37,153,757 (GRCm39) D159N probably damaging Het
Plxna1 C A 6: 89,334,435 (GRCm39) A65S probably damaging Het
Ptprt T C 2: 161,408,077 (GRCm39) Y945C probably damaging Het
Pym1 T G 10: 128,601,073 (GRCm39) V31G probably damaging Het
Stard9 C T 2: 120,529,500 (GRCm39) T1919I possibly damaging Het
Tas1r3 C T 4: 155,945,410 (GRCm39) V604I probably damaging Het
Ttc27 G A 17: 75,058,123 (GRCm39) probably null Het
Wfdc6b A T 2: 164,456,826 (GRCm39) Y46F probably benign Het
Zbtb48 A T 4: 152,110,484 (GRCm39) probably null Het
Zfp385b G A 2: 77,246,233 (GRCm39) P177S probably benign Het
Other mutations in Gnmt
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL01351:Gnmt APN 17 47,037,606 (GRCm39) missense probably benign 0.28
health_nut UTSW 17 47,037,271 (GRCm39) missense probably damaging 1.00
impulsive UTSW 17 47,036,892 (GRCm39) missense probably damaging 1.00
Incautious UTSW 17 47,038,313 (GRCm39) missense probably damaging 1.00
rash UTSW 17 47,036,662 (GRCm39) utr 3 prime probably benign
R0480:Gnmt UTSW 17 47,036,854 (GRCm39) missense probably benign 0.06
R0938:Gnmt UTSW 17 47,037,271 (GRCm39) missense probably damaging 1.00
R0939:Gnmt UTSW 17 47,037,271 (GRCm39) missense probably damaging 1.00
R0940:Gnmt UTSW 17 47,037,271 (GRCm39) missense probably damaging 1.00
R0941:Gnmt UTSW 17 47,037,271 (GRCm39) missense probably damaging 1.00
R4173:Gnmt UTSW 17 47,037,047 (GRCm39) missense probably damaging 1.00
R4456:Gnmt UTSW 17 47,039,910 (GRCm39) missense probably benign 0.07
R4498:Gnmt UTSW 17 47,036,662 (GRCm39) utr 3 prime probably benign
R4659:Gnmt UTSW 17 47,036,892 (GRCm39) missense probably damaging 1.00
R4669:Gnmt UTSW 17 47,037,225 (GRCm39) nonsense probably null
R4827:Gnmt UTSW 17 47,038,245 (GRCm39) missense possibly damaging 0.77
R5112:Gnmt UTSW 17 47,037,256 (GRCm39) missense probably damaging 1.00
R5133:Gnmt UTSW 17 47,036,860 (GRCm39) missense probably benign
R5797:Gnmt UTSW 17 47,037,305 (GRCm39) missense probably damaging 1.00
R7423:Gnmt UTSW 17 47,037,066 (GRCm39) missense probably damaging 1.00
R7825:Gnmt UTSW 17 47,040,019 (GRCm39) missense probably damaging 0.99
R8785:Gnmt UTSW 17 47,038,313 (GRCm39) missense probably damaging 1.00
R8861:Gnmt UTSW 17 47,037,618 (GRCm39) missense probably damaging 1.00
Predicted Primers PCR Primer
(F):5'- CACTGTTTCGGCAGATGCTCTC -3'
(R):5'- TGCCAGAGGATTATAAGTGCGG -3'

Sequencing Primer
(F):5'- TACTACCCTGATGAGCAAGGGC -3'
(R):5'- GATCGCGTGGCCTGAGAG -3'
Posted On 2015-02-19