Incidental Mutation 'R4456:Gnmt'
ID 329208
Institutional Source Beutler Lab
Gene Symbol Gnmt
Ensembl Gene ENSMUSG00000002769
Gene Name glycine N-methyltransferase
Synonyms glycine N methyl transferase
MMRRC Submission 041716-MU
Accession Numbers
Essential gene? Possibly non essential (E-score: 0.306) question?
Stock # R4456 (G1)
Quality Score 202
Status Validated
Chromosome 17
Chromosomal Location 47036590-47040091 bp(-) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) G to T at 47039910 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Histidine to Glutamine at position 56 (H56Q)
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 probably benign
Transcript: ENSMUST00000002846
AA Change: H56Q

PolyPhen 2 Score 0.066 (Sensitivity: 0.94; Specificity: 0.84)
SMART Domains Protein: ENSMUSP00000002846
Gene: ENSMUSG00000002769
AA Change: H56Q

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
Meta Mutation Damage Score 0.0612 question?
Coding Region Coverage
  • 1x: 99.2%
  • 3x: 98.6%
  • 10x: 97.2%
  • 20x: 95.2%
Validation Efficiency 93% (42/45)
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: 37 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Abca8b A G 11: 109,833,071 (GRCm39) F1210L probably benign Het
Amfr C T 8: 94,711,568 (GRCm39) A323T possibly damaging Het
Apob T A 12: 8,065,445 (GRCm39) I4105N probably damaging Het
Bahd1 C T 2: 118,746,887 (GRCm39) P169S probably damaging Het
Cdc42ep1 A G 15: 78,734,091 (GRCm39) E397G possibly damaging Het
Cdkn2d C G 9: 21,202,185 (GRCm39) V21L probably benign Het
Dnmt1 T C 9: 20,821,138 (GRCm39) T1250A probably damaging Het
Dst A T 1: 34,229,800 (GRCm39) K2642N probably benign Het
Emcn A T 3: 137,085,608 (GRCm39) K69* probably null Het
Eya1 C T 1: 14,253,420 (GRCm39) V519M probably damaging Het
Fbxo38 G T 18: 62,659,320 (GRCm39) R326S probably damaging Het
Fcer1g A G 1: 171,061,808 (GRCm39) S3P probably benign Het
Glp1r G T 17: 31,137,949 (GRCm39) E127* probably null Het
Hectd4 C T 5: 121,446,334 (GRCm39) T1513I possibly damaging Het
Hsd3b1 G A 3: 98,763,459 (GRCm39) T48I probably benign Het
Kmt2c A T 5: 25,515,210 (GRCm39) C2878S probably benign Het
Loxhd1 A G 18: 77,486,785 (GRCm39) Y1290C probably damaging Het
Mkln1 A G 6: 31,403,707 (GRCm39) Y76C probably damaging Het
Mri1 C A 8: 84,983,035 (GRCm39) A129S probably benign Het
Mroh2b A T 15: 4,977,407 (GRCm39) H1253L probably benign Het
Mslnl G A 17: 25,961,908 (GRCm39) V128M probably damaging Het
Mthfsd C T 8: 121,832,504 (GRCm39) V63I possibly damaging Het
Naip2 T A 13: 100,291,419 (GRCm39) H1173L probably benign Het
Nbea A G 3: 55,551,205 (GRCm39) V2653A probably benign Het
Nckap5 A T 1: 125,842,472 (GRCm39) probably benign Het
Notch4 G A 17: 34,802,807 (GRCm39) V1378M probably damaging Het
Or51a42 A G 7: 103,708,507 (GRCm39) S101P possibly damaging Het
Rab36 G A 10: 74,880,328 (GRCm39) V63I probably damaging Het
Rasl12 A G 9: 65,305,866 (GRCm39) K7R probably null Het
Rnf4 A G 5: 34,508,705 (GRCm39) Y189C probably benign Het
Shroom3 A G 5: 93,088,858 (GRCm39) H536R probably benign Het
Slc2a4 G A 11: 69,834,148 (GRCm39) probably benign Het
Tbc1d5 A C 17: 51,089,369 (GRCm39) S604A probably damaging Het
Tcp11l1 A T 2: 104,514,567 (GRCm39) V400E probably damaging Het
Tom1l2 G T 11: 60,243,641 (GRCm39) probably benign Het
Ttc28 AC A 5: 111,371,924 (GRCm39) probably null Het
Txndc15 A G 13: 55,865,977 (GRCm39) D147G possibly damaging 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
R3619:Gnmt UTSW 17 47,039,963 (GRCm39) missense possibly damaging 0.63
R4173:Gnmt UTSW 17 47,037,047 (GRCm39) missense probably damaging 1.00
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'- CACTGTTTCGGCAGATGCTC -3'
(R):5'- TTGCCAGAGGATTATAAGTGCGG -3'

Sequencing Primer
(F):5'- TCGGCAGATGCTCTCCCATG -3'
(R):5'- ATCGCGTGGCCTGAGAG -3'
Posted On 2015-07-21