Incidental Mutation 'R2317:Stt3a'
ID 245526
Institutional Source Beutler Lab
Gene Symbol Stt3a
Ensembl Gene ENSMUSG00000032116
Gene Name STT3, subunit of the oligosaccharyltransferase complex, homolog A (S. cerevisiae)
Synonyms Itm1
MMRRC Submission 040312-MU
Accession Numbers
Essential gene? Probably essential (E-score: 0.959) question?
Stock # R2317 (G1)
Quality Score 225
Status Not validated
Chromosome 9
Chromosomal Location 36640640-36678918 bp(-) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) T to C at 36659371 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Isoleucine to Valine at position 323 (I323V)
Ref Sequence ENSEMBL: ENSMUSP00000113116 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000120381] [ENSMUST00000128270]
AlphaFold P46978
Predicted Effect probably benign
Transcript: ENSMUST00000120381
AA Change: I323V

PolyPhen 2 Score 0.075 (Sensitivity: 0.93; Specificity: 0.85)
SMART Domains Protein: ENSMUSP00000113116
Gene: ENSMUSG00000032116
AA Change: I323V

DomainStartEndE-ValueType
Pfam:STT3 17 484 2e-163 PFAM
Pfam:PMT_2 97 257 9.3e-10 PFAM
Predicted Effect probably benign
Transcript: ENSMUST00000128270
Predicted Effect probably benign
Transcript: ENSMUST00000135934
SMART Domains Protein: ENSMUSP00000117794
Gene: ENSMUSG00000032116

DomainStartEndE-ValueType
Pfam:STT3 1 112 1.8e-45 PFAM
Predicted Effect noncoding transcript
Transcript: ENSMUST00000215998
Coding Region Coverage
  • 1x: 99.3%
  • 3x: 98.7%
  • 10x: 97.3%
  • 20x: 95.0%
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 a catalytic subunit of the N-oligosaccharyltransferase (OST) complex, which functions in the endoplasmic reticulum to transfer glycan chains to asparagine residues of target proteins. A separate complex containing a similar catalytic subunit with an overlapping function also exists. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Aug 2015]
Allele List at MGI
Other mutations in this stock
Total: 26 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Ccdc102a T C 8: 95,634,957 (GRCm39) D327G probably null Het
Cdh15 G A 8: 123,583,374 (GRCm39) R59H probably benign Het
Cfap126 A G 1: 170,953,700 (GRCm39) D134G possibly damaging Het
Cript T C 17: 87,335,139 (GRCm39) L19P probably benign Het
Cwf19l1 A C 19: 44,120,597 (GRCm39) L39V possibly damaging Het
Eif2b4 T C 5: 31,348,920 (GRCm39) probably null Het
Esp16 A G 17: 39,850,738 (GRCm39) N39S probably benign Het
Fbxo30 A G 10: 11,166,078 (GRCm39) N267D probably damaging Het
Gabra6 T C 11: 42,208,607 (GRCm39) probably null Het
Gp1ba A G 11: 70,531,473 (GRCm39) probably benign Het
Klf12 C T 14: 100,179,503 (GRCm39) R279Q probably benign Het
Lats1 C T 10: 7,567,540 (GRCm39) Q104* probably null Het
Myrfl A G 10: 116,675,289 (GRCm39) Y215H possibly damaging Het
Ncoa1 A G 12: 4,325,189 (GRCm39) I963T probably damaging Het
Neurod6 A G 6: 55,655,906 (GRCm39) Y244H probably damaging Het
Nodal T C 10: 61,254,212 (GRCm39) M45T possibly damaging Het
Nuggc A G 14: 65,861,591 (GRCm39) E479G possibly damaging Het
Pdcd6ip T C 9: 113,501,842 (GRCm39) D467G probably benign Het
Pnmt C A 11: 98,277,677 (GRCm39) Q74K probably benign Het
Slc25a36 G A 9: 96,961,235 (GRCm39) T267I probably damaging Het
Slc35e3 A G 10: 117,580,804 (GRCm39) S167P probably damaging Het
Sprr2f C A 3: 92,273,390 (GRCm39) P63H unknown Het
Tedc2 A G 17: 24,435,358 (GRCm39) S344P probably benign Het
Unc13b A G 4: 43,245,514 (GRCm39) D3722G probably damaging Het
Zfp35 T C 18: 24,136,555 (GRCm39) Y300H probably damaging Het
Zfp959 A G 17: 56,204,326 (GRCm39) D121G possibly damaging Het
Other mutations in Stt3a
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL01866:Stt3a APN 9 36,645,662 (GRCm39) missense probably benign 0.00
IGL02237:Stt3a APN 9 36,660,933 (GRCm39) nonsense probably null
IGL02644:Stt3a APN 9 36,663,649 (GRCm39) missense possibly damaging 0.70
IGL02710:Stt3a APN 9 36,670,041 (GRCm39) missense probably damaging 0.99
IGL03085:Stt3a APN 9 36,644,266 (GRCm39) intron probably benign
IGL03180:Stt3a APN 9 36,670,552 (GRCm39) missense probably damaging 1.00
IGL03295:Stt3a APN 9 36,674,627 (GRCm39) splice site probably null
Scramble UTSW 9 36,646,762 (GRCm39) missense probably damaging 1.00
Western UTSW 9 36,646,682 (GRCm39) missense probably damaging 1.00
R0314:Stt3a UTSW 9 36,660,841 (GRCm39) intron probably benign
R0731:Stt3a UTSW 9 36,646,808 (GRCm39) missense probably damaging 1.00
R1188:Stt3a UTSW 9 36,662,636 (GRCm39) missense probably damaging 1.00
R1797:Stt3a UTSW 9 36,654,711 (GRCm39) critical splice donor site probably null
R1846:Stt3a UTSW 9 36,674,681 (GRCm39) missense probably damaging 1.00
R2152:Stt3a UTSW 9 36,659,292 (GRCm39) missense probably damaging 1.00
R2220:Stt3a UTSW 9 36,660,847 (GRCm39) critical splice donor site probably null
R3689:Stt3a UTSW 9 36,670,618 (GRCm39) missense probably damaging 1.00
R4299:Stt3a UTSW 9 36,674,640 (GRCm39) missense probably damaging 1.00
R4586:Stt3a UTSW 9 36,653,089 (GRCm39) missense probably damaging 1.00
R4595:Stt3a UTSW 9 36,646,808 (GRCm39) missense probably damaging 1.00
R4689:Stt3a UTSW 9 36,644,225 (GRCm39) missense possibly damaging 0.91
R4736:Stt3a UTSW 9 36,661,008 (GRCm39) missense probably benign 0.01
R5145:Stt3a UTSW 9 36,646,762 (GRCm39) missense probably damaging 1.00
R5208:Stt3a UTSW 9 36,657,891 (GRCm39) missense possibly damaging 0.78
R5665:Stt3a UTSW 9 36,670,610 (GRCm39) missense probably damaging 1.00
R5748:Stt3a UTSW 9 36,663,696 (GRCm39) missense probably benign 0.21
R6341:Stt3a UTSW 9 36,662,592 (GRCm39) missense probably damaging 1.00
R6853:Stt3a UTSW 9 36,653,023 (GRCm39) missense possibly damaging 0.89
R6859:Stt3a UTSW 9 36,646,682 (GRCm39) missense probably damaging 1.00
R7453:Stt3a UTSW 9 36,659,266 (GRCm39) missense possibly damaging 0.91
R7495:Stt3a UTSW 9 36,659,235 (GRCm39) missense probably benign 0.03
R7745:Stt3a UTSW 9 36,662,535 (GRCm39) nonsense probably null
R8007:Stt3a UTSW 9 36,653,065 (GRCm39) missense probably damaging 1.00
R9176:Stt3a UTSW 9 36,662,592 (GRCm39) missense probably damaging 1.00
R9218:Stt3a UTSW 9 36,670,556 (GRCm39) missense probably damaging 0.98
R9552:Stt3a UTSW 9 36,645,675 (GRCm39) missense probably benign 0.00
R9622:Stt3a UTSW 9 36,661,025 (GRCm39) missense possibly damaging 0.95
R9784:Stt3a UTSW 9 36,670,079 (GRCm39) missense probably damaging 0.97
Predicted Primers PCR Primer
(F):5'- CTTCAAAATGCAAGACAGACCTGG -3'
(R):5'- AGTCTGGAATATAAAGCGTGGC -3'

Sequencing Primer
(F):5'- TGCAAGACAGACCTGGAAACATG -3'
(R):5'- AGGGAACTCCTGCTTCAGACATG -3'
Posted On 2014-10-30