Incidental Mutation 'R4669:Gnmt'
Institutional Source Beutler Lab
Gene Symbol Gnmt
Ensembl Gene ENSMUSG00000002769
Gene Nameglycine N-methyltransferase
Synonymsglycine N methyl transferase
MMRRC Submission 041925-MU
Accession Numbers
Is this an essential gene? Possibly non essential (E-score: 0.287) question?
Stock #R4669 (G1)
Quality Score225
Status Not validated
Chromosomal Location46725664-46729168 bp(-) (GRCm38)
Type of Mutationnonsense
DNA Base Change (assembly) A to T at 46726299 bp
Amino Acid Change Cysteine to Stop codon at position 186 (C186*)
Ref Sequence ENSEMBL: ENSMUSP00000002846 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000002840] [ENSMUST00000002846]
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

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 probably null
Transcript: ENSMUST00000002846
AA Change: C186*
SMART Domains Protein: ENSMUSP00000002846
Gene: ENSMUSG00000002769
AA Change: C186*

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: ENSMUST00000148872
Predicted Effect noncoding transcript
Transcript: ENSMUST00000181301
Coding Region Coverage
  • 1x: 99.2%
  • 3x: 98.6%
  • 10x: 97.3%
  • 20x: 95.4%
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: 98 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Acad8 A G 9: 26,990,627 L147P probably damaging Het
Acan A G 7: 79,101,142 E464G probably benign Het
Agap1 A G 1: 89,837,806 probably null Het
Akap13 A G 7: 75,729,094 T2128A probably damaging Het
Ap2a1 A T 7: 44,902,919 probably benign Het
Arap3 T C 18: 37,996,254 D217G probably benign Het
Arl2 C A 19: 6,134,686 R179L probably damaging Het
Atg2a T A 19: 6,258,987 probably null Het
B3gat1 T A 9: 26,751,756 L6Q probably benign Het
Bcl10 A G 3: 145,930,572 N75S probably damaging Het
Bmpr2 T C 1: 59,867,716 L656S probably damaging Het
Brms1l A G 12: 55,841,571 E48G possibly damaging Het
C2cd2l A T 9: 44,315,025 N414K possibly damaging Het
Capn2 C T 1: 182,470,780 C640Y probably benign Het
Ccdc153 G T 9: 44,245,724 R99M probably damaging Het
Ccdc51 A G 9: 109,090,962 N142S probably benign Het
Ccdc58 A G 16: 36,082,719 D27G probably damaging Het
Cdipt A G 7: 126,978,406 H108R possibly damaging Het
Ceacam20 T C 7: 19,986,027 Y495H probably damaging Het
Celf2 T C 2: 6,721,528 I47V probably benign Het
Cts3 C T 13: 61,566,823 E223K probably benign Het
Cyp2a22 T C 7: 26,937,855 D168G possibly damaging Het
Cyp2c67 T A 19: 39,643,654 H90L probably benign Het
Ddx4 T C 13: 112,622,244 Y261C probably damaging Het
Dnah17 T C 11: 118,074,293 T2308A probably benign Het
Dnah6 T C 6: 73,037,688 T3587A probably damaging Het
Dpy19l1 C T 9: 24,432,368 V494I possibly damaging Het
Dse T G 10: 34,153,012 Y694S probably damaging Het
Emilin3 T C 2: 160,910,797 I78V probably benign Het
Esam T A 9: 37,536,656 Y195* probably null Het
Extl3 T A 14: 65,076,296 N479I possibly damaging Het
Fat2 A G 11: 55,311,615 V211A probably benign Het
Ganc G T 2: 120,431,067 V343F probably benign Het
Ggt5 T C 10: 75,603,031 L121P probably damaging Het
Gpr75 A T 11: 30,892,072 I326F probably damaging Het
Gsdme C T 6: 50,208,122 V451M probably damaging Het
H2-T23 G T 17: 36,031,798 D149E probably damaging Het
Hmcn2 G T 2: 31,435,792 R4277L probably benign Het
Irf9 C A 14: 55,605,766 H94N probably benign Het
Jhy T C 9: 40,961,153 N20S probably benign Het
Klf17 C A 4: 117,760,371 C263F probably damaging Het
Lama5 T C 2: 180,180,637 Y2881C probably damaging Het
Lig1 T G 7: 13,311,028 I882S probably damaging Het
Ltn1 A T 16: 87,418,487 M420K possibly damaging Het
Mael T C 1: 166,235,508 E125G probably damaging Het
Mib2 C T 4: 155,657,415 D275N possibly damaging Het
Mical3 C T 6: 120,957,703 R1805Q probably damaging Het
Mllt10 A G 2: 18,203,633 D158G probably damaging Het
Mocs1 A G 17: 49,454,585 D569G possibly damaging Het
Msh6 T C 17: 87,984,806 S330P possibly damaging Het
Mtmr2 T C 9: 13,795,964 S199P probably damaging Het
Ndufaf5 T C 2: 140,187,755 V164A probably benign Het
Nek9 T C 12: 85,314,204 E518G probably benign Het
Nfatc2 T C 2: 168,571,490 I72V probably benign Het
Nlrp9c C T 7: 26,375,368 A746T possibly damaging Het
Nupl2 A G 5: 24,182,417 R402G probably benign Het
Ogdh G T 11: 6,340,600 C406F probably benign Het
Olfr1045 A T 2: 86,197,933 M273K possibly damaging Het
Olfr1225 G A 2: 89,170,901 H104Y probably damaging Het
Olfr146 T A 9: 39,019,379 Y54F probably benign Het
Olfr411 A G 11: 74,346,963 V207A probably benign Het
Olfr881 A T 9: 37,993,085 I198F possibly damaging Het
Otof A G 5: 30,420,974 probably null Het
Pcdhb17 T C 18: 37,486,206 S350P probably damaging Het
Phf3 T C 1: 30,829,946 T674A probably damaging Het
Pikfyve T A 1: 65,250,273 C1235S probably damaging Het
Ppfia3 T C 7: 45,352,093 E465G probably damaging Het
Prkg1 T A 19: 31,664,239 I15F probably damaging Het
Rab5c A G 11: 100,720,017 F22L probably damaging Het
Raf1 A G 6: 115,632,919 S220P probably damaging Het
Rgl1 T G 1: 152,521,371 R716S probably damaging Het
Rhbg C A 3: 88,245,966 W205L probably damaging Het
Rimbp3 A G 16: 17,209,189 E159G possibly damaging Het
Ryr1 T C 7: 29,059,831 D3338G probably null Het
Sash1 T C 10: 8,730,385 N747S probably benign Het
Serpina3g A T 12: 104,239,220 I73F probably damaging Het
Sfxn2 C A 19: 46,585,774 N134K probably damaging Het
Slc12a6 A G 2: 112,354,295 H853R probably damaging Het
Slc16a12 C T 19: 34,672,565 D357N probably damaging Het
Slc39a8 T C 3: 135,856,011 Y164H probably benign Het
Snx9 A G 17: 5,927,224 K518E probably damaging Het
Spdye4c G A 2: 128,592,353 V5I possibly damaging Het
Spef2 A G 15: 9,676,373 V704A probably benign Het
Stard3nl T A 13: 19,376,519 N29Y probably damaging Het
Strap C A 6: 137,735,386 S11* probably null Het
Synpo2 A G 3: 123,113,063 L868P probably damaging Het
Tenm2 A G 11: 36,010,487 V2474A probably damaging Het
Tm9sf4 T A 2: 153,187,308 V92D probably damaging Het
Tmf1 A T 6: 97,170,427 M526K probably benign Het
Top2b T G 14: 16,409,189 I777M probably damaging Het
Ttc39d A G 17: 80,217,639 I576V probably benign Het
Upk1a T G 7: 30,605,129 T193P probably benign Het
Vmn2r67 A T 7: 85,150,524 V502E probably benign Het
Wdr17 A G 8: 54,690,048 V189A possibly damaging Het
Wrap73 A T 4: 154,151,696 S161C probably benign Het
Zfp568 A G 7: 30,023,277 H549R probably damaging Het
Zfp605 T A 5: 110,127,361 M115K possibly damaging Het
Zp1 T A 19: 10,918,905 H152L probably benign Het
Other mutations in Gnmt
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL01351:Gnmt APN 17 46726680 missense probably benign 0.28
health_nut UTSW 17 46726345 missense probably damaging 1.00
R0480:Gnmt UTSW 17 46725928 missense probably benign 0.06
R0938:Gnmt UTSW 17 46726345 missense probably damaging 1.00
R0939:Gnmt UTSW 17 46726345 missense probably damaging 1.00
R0940:Gnmt UTSW 17 46726345 missense probably damaging 1.00
R0941:Gnmt UTSW 17 46726345 missense probably damaging 1.00
R3619:Gnmt UTSW 17 46729037 missense possibly damaging 0.63
R4173:Gnmt UTSW 17 46726121 missense probably damaging 1.00
R4456:Gnmt UTSW 17 46728984 missense probably benign 0.07
R4498:Gnmt UTSW 17 46725736 utr 3 prime probably benign
R4659:Gnmt UTSW 17 46725966 missense probably damaging 1.00
R4827:Gnmt UTSW 17 46727319 missense possibly damaging 0.77
R5112:Gnmt UTSW 17 46726330 missense probably damaging 1.00
R5133:Gnmt UTSW 17 46725934 missense probably benign
R5797:Gnmt UTSW 17 46726379 missense probably damaging 1.00
Predicted Primers PCR Primer

Sequencing Primer
Posted On2015-10-08