Incidental Mutation 'R4905:Dhfr'
ID 378127
Institutional Source Beutler Lab
Gene Symbol Dhfr
Ensembl Gene ENSMUSG00000021707
Gene Name dihydrofolate reductase
Synonyms 8430436I03Rik
Accession Numbers
Essential gene? Essential (E-score: 1.000) question?
Stock # R4905 (G1)
Quality Score 225
Status Not validated
Chromosome 13
Chromosomal Location 92491291-92525561 bp(+) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) G to A at 92502282 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Glycine to Serine at position 118 (G118S)
Ref Sequence ENSEMBL: ENSMUSP00000022218 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000022218]
AlphaFold P00375
PDB Structure Understanding the Role of Leu22 Variants in Methotrexate Resistance: Comparison of Wild-type and Leu22Arg Variant Mouse and Human Dihydrofolate Reductase [X-RAY DIFFRACTION]
New Insights into DHFR Interactions: Analysis of Pneumocystis carinii and Mouse DHFR Complexes with NADPH and Two Highly Potent Trimethoprim Derivatives [X-RAY DIFFRACTION]
Structural Analysis of a Holo Enzyme Complex of Mouse Dihydrofolate Reductase with NADPH and a Ternary Complex wtih the Potent and Selective Inhibitor 2,4-Diamino-6-(2'-hydroxydibenz[b,f]azepin-5-yl)methylpteridine [X-RAY DIFFRACTION]
Structural Analysis of a Holo Enzyme Complex of Mouse Dihydrofolate Reductase with NADPH and a Ternary Complex with the Potent and Selective Inhibitor 2.4-Diamino-6-(-2'-hydroxydibenz[b,f]azepin-5-yl)methylpteridine [X-RAY DIFFRACTION]
Alternate Binding Modes Observed for the E- and Z-isomers of 2,4-Diaminofuro[2,3d]pyrimidines as Ternary Complexes with NADPH and Mouse Dihydrofolate Reductase [X-RAY DIFFRACTION]
Alternate Binding Modes Observed for the E- and Z-Isomers of 2,4-Diaminofuro[2,3-d]pyrimidines as Ternary Complexes with NADPH and Mouse Dihydrofolate Reductase [X-RAY DIFFRACTION]
Predicted Effect probably damaging
Transcript: ENSMUST00000022218
AA Change: G118S

PolyPhen 2 Score 1.000 (Sensitivity: 0.00; Specificity: 1.00)
SMART Domains Protein: ENSMUSP00000022218
Gene: ENSMUSG00000021707
AA Change: G118S

DomainStartEndE-ValueType
Pfam:DHFR_1 4 185 3.9e-37 PFAM
Coding Region Coverage
  • 1x: 98.9%
  • 3x: 98.0%
  • 10x: 95.0%
  • 20x: 87.5%
Validation Efficiency
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] Dihydrofolate reductase converts dihydrofolate into tetrahydrofolate, a methyl group shuttle required for the de novo synthesis of purines, thymidylic acid, and certain amino acids. While the functional dihydrofolate reductase gene has been mapped to chromosome 5, multiple intronless processed pseudogenes or dihydrofolate reductase-like genes have been identified on separate chromosomes. Dihydrofolate reductase deficiency has been linked to megaloblastic anemia. Several transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Mar 2014]
PHENOTYPE: Mice homozygous for a knock-out allele exhibit lethality soon after E14.5 with reduced size, pallor, impaired hematopoiesis and abnormal folic acid levels. Mice heterozygous for this allele exhibit abnormal folic acid levels, abnormal hemopoiesis and reduced endothelium-dependent vasorelaxation. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 61 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
1700017N19Rik A T 10: 100,448,680 (GRCm39) probably null Het
2700049A03Rik G T 12: 71,211,320 (GRCm39) E685* probably null Het
2700049A03Rik A T 12: 71,211,321 (GRCm39) E685V possibly damaging Het
Abcc5 A G 16: 20,218,678 (GRCm39) S235P probably damaging Het
Abcc6 T C 7: 45,644,649 (GRCm39) N842S probably benign Het
Acbd6 G A 1: 155,500,669 (GRCm39) V210I probably benign Het
Ahctf1 A T 1: 179,576,192 (GRCm39) V2130D probably damaging Het
Akap5 A G 12: 76,375,207 (GRCm39) E213G probably damaging Het
Alyref T G 11: 120,486,879 (GRCm39) probably null Het
Anapc5 G T 5: 122,955,973 (GRCm39) N152K probably benign Het
Atp8b2 A T 3: 89,856,315 (GRCm39) D416E probably benign Het
AW551984 A T 9: 39,508,454 (GRCm39) V354E probably damaging Het
Bag6 A G 17: 35,364,162 (GRCm39) E844G probably damaging Het
Bmp1 C T 14: 70,728,802 (GRCm39) R590H probably benign Het
Ccnh T C 13: 85,354,254 (GRCm39) S233P possibly damaging Het
Cdca7 TGAAGAAGAAGAAGAAGAAGAAGAAGAAGAAGA TGAAGAAGAAGAAGAAGAAGAAGAAGAAGA 2: 72,312,205 (GRCm39) probably benign Het
Col6a6 A G 9: 105,644,623 (GRCm39) S1222P probably damaging Het
Dnah9 G A 11: 65,764,950 (GRCm39) R1414* probably null Het
Dnai1 A G 4: 41,614,269 (GRCm39) D315G probably benign Het
Eogt T C 6: 97,119,792 (GRCm39) R139G probably benign Het
Fcgbpl1 A T 7: 27,856,408 (GRCm39) K2065M possibly damaging Het
Fh1 C T 1: 175,446,639 (GRCm39) G79E probably damaging Het
Gabrg3 A G 7: 56,374,304 (GRCm39) Y421H probably damaging Het
Glipr1 C A 10: 111,821,545 (GRCm39) R219L probably damaging Het
Gm1123 T C 9: 98,891,369 (GRCm39) D360G probably benign Het
Ift81 C T 5: 122,729,142 (GRCm39) probably null Het
Itsn2 A G 12: 4,684,583 (GRCm39) probably benign Het
Kri1 A T 9: 21,198,998 (GRCm39) H55Q probably benign Het
Mcidas C A 13: 113,130,951 (GRCm39) A92E possibly damaging Het
Mcidas C T 13: 113,134,038 (GRCm39) T174M possibly damaging Het
Mmp25 C A 17: 23,863,022 (GRCm39) G130* probably null Het
Myh11 G A 16: 14,068,387 (GRCm39) T211M probably benign Het
Myo10 A G 15: 25,800,298 (GRCm39) D1458G probably damaging Het
Ncf4 A G 15: 78,139,104 (GRCm39) T154A probably damaging Het
Nfatc4 T C 14: 56,068,039 (GRCm39) I620T probably benign Het
Nos3 A T 5: 24,572,329 (GRCm39) Y134F probably benign Het
Nup50l T A 6: 96,142,911 (GRCm39) R44S possibly damaging Het
Or13c3 T C 4: 52,855,613 (GRCm39) N300S probably damaging Het
Or51a6 A T 7: 102,604,721 (GRCm39) I36N probably damaging Het
Or5b106 C A 19: 13,123,541 (GRCm39) A161S probably benign Het
Or6c209 T A 10: 129,483,792 (GRCm39) V265E possibly damaging Het
Pax9 G T 12: 56,743,411 (GRCm39) R19S probably damaging Het
Pcdha9 T C 18: 37,131,945 (GRCm39) I338T probably damaging Het
Plxnb2 G T 15: 89,041,614 (GRCm39) T1730K probably damaging Het
Rac1 A G 5: 143,502,907 (GRCm39) probably null Het
Samsn1 G T 16: 75,673,353 (GRCm39) F174L possibly damaging Het
Scaf1 G A 7: 44,662,129 (GRCm39) T86M probably damaging Het
Smc1b A G 15: 84,950,428 (GRCm39) Y1199H probably damaging Het
Svep1 A G 4: 58,069,308 (GRCm39) I2826T probably benign Het
Tex36 A G 7: 133,189,182 (GRCm39) V130A probably damaging Het
Tigd5 A G 15: 75,783,252 (GRCm39) H538R probably damaging Het
Tlr3 C A 8: 45,852,260 (GRCm39) probably null Het
Tubb2b A T 13: 34,312,187 (GRCm39) I202N probably damaging Het
Unc13c A G 9: 73,587,674 (GRCm39) V1453A probably benign Het
Unc5c A T 3: 141,507,071 (GRCm39) T608S probably benign Het
Vrk1 C A 12: 106,018,087 (GRCm39) H119N probably damaging Het
Wdr53 T A 16: 32,075,476 (GRCm39) M227K probably benign Het
Xpo4 T C 14: 57,875,746 (GRCm39) D129G possibly damaging Het
Zcchc4 T C 5: 52,953,992 (GRCm39) I224T probably damaging Het
Zdhhc1 T A 8: 106,210,326 (GRCm39) E30D probably damaging Het
Zscan29 C G 2: 120,991,864 (GRCm39) R540T possibly damaging Het
Other mutations in Dhfr
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL01659:Dhfr APN 13 92,492,178 (GRCm39) splice site probably null
R0546:Dhfr UTSW 13 92,504,692 (GRCm39) critical splice acceptor site probably null
R1465:Dhfr UTSW 13 92,504,815 (GRCm39) splice site probably benign
R2026:Dhfr UTSW 13 92,502,279 (GRCm39) nonsense probably null
R5109:Dhfr UTSW 13 92,491,788 (GRCm39) missense probably damaging 1.00
R7039:Dhfr UTSW 13 92,491,791 (GRCm39) missense probably benign 0.04
R7869:Dhfr UTSW 13 92,494,471 (GRCm39) nonsense probably null
R8905:Dhfr UTSW 13 92,494,467 (GRCm39) missense probably damaging 1.00
R9509:Dhfr UTSW 13 92,504,739 (GRCm39) missense probably damaging 1.00
Predicted Primers PCR Primer
(F):5'- CGGATTATTTGACTAGTGTGGACAG -3'
(R):5'- GGAGGGTGAATCTGCCTAAG -3'

Sequencing Primer
(F):5'- TGACTAGTGTGGACAGACTTTTAC -3'
(R):5'- GGTACATGAAGTATGATGCACCATC -3'
Posted On 2016-04-15