Incidental Mutation 'R2270:Chat'
ID 242416
Institutional Source Beutler Lab
Gene Symbol Chat
Ensembl Gene ENSMUSG00000021919
Gene Name choline acetyltransferase
Synonyms B230380D24Rik
MMRRC Submission 040270-MU
Accession Numbers
Essential gene? Probably essential (E-score: 0.911) question?
Stock # R2270 (G1)
Quality Score 225
Status Not validated
Chromosome 14
Chromosomal Location 32130160-32187866 bp(-) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) T to C at 32176538 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Arginine to Glycine at position 79 (R79G)
Ref Sequence ENSEMBL: ENSMUSP00000070865 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000070125] [ENSMUST00000226351] [ENSMUST00000226365] [ENSMUST00000227579] [ENSMUST00000228256] [ENSMUST00000228420] [ENSMUST00000228511]
AlphaFold no structure available at present
Predicted Effect probably damaging
Transcript: ENSMUST00000070125
AA Change: R79G

PolyPhen 2 Score 0.986 (Sensitivity: 0.74; Specificity: 0.96)
SMART Domains Protein: ENSMUSP00000070865
Gene: ENSMUSG00000021919
AA Change: R79G

DomainStartEndE-ValueType
Pfam:Carn_acyltransf 24 612 5.5e-190 PFAM
Predicted Effect probably benign
Transcript: ENSMUST00000226351
Predicted Effect probably damaging
Transcript: ENSMUST00000226365
AA Change: R79G

PolyPhen 2 Score 0.983 (Sensitivity: 0.75; Specificity: 0.96)
Predicted Effect probably damaging
Transcript: ENSMUST00000227579
AA Change: R79G

PolyPhen 2 Score 0.983 (Sensitivity: 0.75; Specificity: 0.96)
Predicted Effect noncoding transcript
Transcript: ENSMUST00000227675
Predicted Effect probably benign
Transcript: ENSMUST00000228256
Predicted Effect probably benign
Transcript: ENSMUST00000228420
Predicted Effect probably benign
Transcript: ENSMUST00000228511
Coding Region Coverage
  • 1x: 99.1%
  • 3x: 98.5%
  • 10x: 97.2%
  • 20x: 94.6%
Validation Efficiency
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] This gene encodes an enzyme which catalyzes the biosynthesis of the neurotransmitter acetylcholine. This gene product is a characteristic feature of cholinergic neurons, and changes in these neurons may explain some of the symptoms of Alzheimer's disease. Polymorphisms in this gene have been associated with Alzheimer's disease and mild cognitive impairment. Mutations in this gene are associated with congenital myasthenic syndrome associated with episodic apnea. Multiple transcript variants encoding different isoforms have been found for this gene, and some of these variants have been shown to encode more than one isoform. [provided by RefSeq, May 2010]
PHENOTYPE: Homozygous mutation of this gene results in hyperinnervation of motor neurons, abnormal morphology and patterning of neuromuscular synapses, and perinatal lethality. Mutant fetuses at E18.5 exhibit a hunched position, reduced body length, and carpoptosis(drop wrist). [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 59 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Ablim1 G A 19: 57,065,863 (GRCm39) R54W possibly damaging Het
Adam22 T C 5: 8,171,108 (GRCm39) E614G probably damaging Het
Ap4e1 T C 2: 126,889,083 (GRCm39) probably null Het
Arid3c T A 4: 41,724,744 (GRCm39) I364F probably damaging Het
Atp11b A G 3: 35,864,283 (GRCm39) probably null Het
Bmal2 T C 6: 146,723,612 (GRCm39) F314S probably damaging Het
Carnmt1 T C 19: 18,680,734 (GRCm39) L336P probably damaging Het
Cdh22 A T 2: 164,985,767 (GRCm39) probably null Het
Cdk5rap2 A C 4: 70,184,915 (GRCm39) S1178R probably benign Het
Chek1 A G 9: 36,630,982 (GRCm39) L144P probably damaging Het
Cracr2a T A 6: 127,584,261 (GRCm39) F107I probably damaging Het
Crip2 A C 12: 113,108,486 (GRCm39) K62N probably damaging Het
Ddc T C 11: 11,785,764 (GRCm39) N308D probably damaging Het
Dnm3 A T 1: 162,305,358 (GRCm39) L12Q probably damaging Het
Eftud2 T C 11: 102,755,607 (GRCm39) N200S probably damaging Het
Fgfbp1 T A 5: 44,136,672 (GRCm39) M207L probably benign Het
Fry A G 5: 150,324,389 (GRCm39) I1151V probably null Het
Garem2 T G 5: 30,321,972 (GRCm39) L777R probably damaging Het
Garin5b T A 7: 4,761,186 (GRCm39) T509S probably benign Het
Gm10608 CAGAGAGAGAGAGAGAGAGAGAGAGAGAGAGAGAGAGAGAGAGAGAGAGAGAGAGAGAGA CAGAGAGAGAGAGAGAGAGAGAGAGAGAGAGAGAGAGAGAGAGAGAGAGA 9: 118,989,784 (GRCm39) probably null Het
Gpr143 T A X: 151,573,566 (GRCm39) V181E probably damaging Het
Gtf2f1 T C 17: 57,310,462 (GRCm39) I498V probably null Het
Ipo4 A G 14: 55,871,557 (GRCm39) L168P probably damaging Het
Ism1 T A 2: 139,599,293 (GRCm39) I415N probably damaging Het
Lipa T A 19: 34,488,290 (GRCm39) R119* probably null Het
Mrc2 G A 11: 105,239,257 (GRCm39) probably null Het
Mre11a A G 9: 14,726,470 (GRCm39) E411G probably benign Het
Mybpc1 C A 10: 88,387,269 (GRCm39) V106F probably benign Het
Myo5b G T 18: 74,866,996 (GRCm39) L1382F probably damaging Het
N4bp3 A T 11: 51,535,132 (GRCm39) N352K probably benign Het
Ncbp2 T C 16: 31,775,769 (GRCm39) Y138H probably damaging Het
Ncor2 A G 5: 125,115,019 (GRCm39) V515A probably benign Het
Ndufv1 C A 19: 4,058,347 (GRCm39) R359L probably benign Het
Nfix CAAAAA CAAAA 8: 85,442,876 (GRCm39) probably null Het
Olfm4 C A 14: 80,249,315 (GRCm39) T144K probably damaging Het
Or11g25 G T 14: 50,723,494 (GRCm39) C193F probably damaging Het
Or8b12i T A 9: 20,082,705 (GRCm39) H54L possibly damaging Het
Pes1 C A 11: 3,919,524 (GRCm39) L66I probably damaging Het
Phf12 G T 11: 77,875,001 (GRCm39) A76S possibly damaging Het
Plb1 G T 5: 32,450,586 (GRCm39) D376Y probably damaging Het
Prkdc A G 16: 15,472,681 (GRCm39) probably null Het
Prkg1 A G 19: 30,556,031 (GRCm39) V610A probably benign Het
Prrc2a T C 17: 35,368,512 (GRCm39) T2104A possibly damaging Het
Rab3gap2 T A 1: 185,015,739 (GRCm39) probably null Het
Ranbp2 T C 10: 58,291,749 (GRCm39) V252A probably benign Het
Rcn3 A G 7: 44,738,075 (GRCm39) S98P probably damaging Het
Rere T C 4: 150,561,837 (GRCm39) S248P unknown Het
Rnaseh2a T C 8: 85,692,048 (GRCm39) E75G probably benign Het
Slc15a1 A T 14: 121,717,406 (GRCm39) M292K probably damaging Het
Slc1a2 T G 2: 102,566,339 (GRCm39) L14R probably damaging Het
Slfn2 C T 11: 82,960,761 (GRCm39) R247C probably damaging Het
Ttn T C 2: 76,778,708 (GRCm39) I1218M probably damaging Het
Usp7 T C 16: 8,516,333 (GRCm39) S649G probably benign Het
Yme1l1 T C 2: 23,065,232 (GRCm39) I247T possibly damaging Het
Zc3h13 T C 14: 75,569,587 (GRCm39) M1478T probably benign Het
Zfp444 T C 7: 6,192,554 (GRCm39) C191R probably damaging Het
Zfp729b A T 13: 67,740,352 (GRCm39) C648S probably damaging Het
Znhit2 A G 19: 6,111,261 (GRCm39) E2G probably damaging Het
Zpbp A T 11: 11,368,272 (GRCm39) M133K probably benign Het
Other mutations in Chat
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00861:Chat APN 14 32,170,980 (GRCm39) missense probably damaging 0.98
IGL01618:Chat APN 14 32,168,849 (GRCm39) splice site probably null
IGL02192:Chat APN 14 32,145,279 (GRCm39) missense possibly damaging 0.94
IGL02418:Chat APN 14 32,168,906 (GRCm39) missense possibly damaging 0.74
IGL02851:Chat APN 14 32,180,570 (GRCm39) missense probably benign
IGL02966:Chat APN 14 32,170,903 (GRCm39) missense probably damaging 1.00
IGL03401:Chat APN 14 32,174,526 (GRCm39) missense probably damaging 1.00
R0511:Chat UTSW 14 32,130,976 (GRCm39) missense probably damaging 1.00
R1462:Chat UTSW 14 32,142,735 (GRCm39) missense probably damaging 1.00
R1462:Chat UTSW 14 32,142,735 (GRCm39) missense probably damaging 1.00
R1729:Chat UTSW 14 32,168,752 (GRCm39) missense probably damaging 1.00
R1782:Chat UTSW 14 32,130,944 (GRCm39) missense probably damaging 1.00
R1972:Chat UTSW 14 32,146,148 (GRCm39) missense probably benign 0.03
R1973:Chat UTSW 14 32,146,148 (GRCm39) missense probably benign 0.03
R2061:Chat UTSW 14 32,168,830 (GRCm39) missense probably benign 0.00
R4012:Chat UTSW 14 32,145,269 (GRCm39) missense possibly damaging 0.56
R4601:Chat UTSW 14 32,146,112 (GRCm39) missense probably benign 0.00
R4620:Chat UTSW 14 32,175,775 (GRCm39) missense probably damaging 1.00
R4760:Chat UTSW 14 32,175,694 (GRCm39) missense probably benign
R4885:Chat UTSW 14 32,176,567 (GRCm39) missense probably damaging 1.00
R4899:Chat UTSW 14 32,170,934 (GRCm39) missense possibly damaging 0.80
R4940:Chat UTSW 14 32,141,062 (GRCm39) missense probably damaging 1.00
R4960:Chat UTSW 14 32,142,771 (GRCm39) missense possibly damaging 0.86
R5094:Chat UTSW 14 32,130,896 (GRCm39) missense probably damaging 1.00
R6039:Chat UTSW 14 32,170,984 (GRCm39) missense probably damaging 1.00
R6039:Chat UTSW 14 32,170,984 (GRCm39) missense probably damaging 1.00
R6621:Chat UTSW 14 32,140,970 (GRCm39) missense probably damaging 0.97
R6648:Chat UTSW 14 32,176,651 (GRCm39) missense probably benign 0.17
R6980:Chat UTSW 14 32,146,111 (GRCm39) missense probably benign 0.15
R7203:Chat UTSW 14 32,141,014 (GRCm39) missense probably damaging 1.00
R7336:Chat UTSW 14 32,145,213 (GRCm39) splice site probably null
R7530:Chat UTSW 14 32,130,915 (GRCm39) nonsense probably null
R8782:Chat UTSW 14 32,146,155 (GRCm39) missense probably benign 0.00
R8941:Chat UTSW 14 32,130,963 (GRCm39) missense probably benign 0.43
R9496:Chat UTSW 14 32,148,119 (GRCm39) missense probably benign 0.00
R9560:Chat UTSW 14 32,170,942 (GRCm39) nonsense probably null
X0014:Chat UTSW 14 32,168,890 (GRCm39) missense probably benign 0.01
X0066:Chat UTSW 14 32,175,788 (GRCm39) missense probably damaging 1.00
Predicted Primers PCR Primer
(F):5'- CTGCAGTTGCCCAGCCTATG -3'
(R):5'- CGAAGGAGACATGTTCTGGC -3'

Sequencing Primer
(F):5'- ATGCTACCAGTGTGTTCCCAC -3'
(R):5'- GGAGACATGTTCTGGCATCAATC -3'
Posted On 2014-10-16