Incidental Mutation 'R9634:Extl3'
ID 725728
Institutional Source Beutler Lab
Gene Symbol Extl3
Ensembl Gene ENSMUSG00000021978
Gene Name exostosin-like glycosyltransferase 3
Synonyms 2900009G18Rik
MMRRC Submission
Accession Numbers
Essential gene? Essential (E-score: 1.000) question?
Stock # R9634 (G1)
Quality Score 225.009
Status Not validated
Chromosome 14
Chromosomal Location 65289509-65387304 bp(-) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) A to T at 65314919 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Serine to Threonine at position 88 (S88T)
Ref Sequence ENSEMBL: ENSMUSP00000153547 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000022550] [ENSMUST00000225633]
AlphaFold no structure available at present
Predicted Effect probably damaging
Transcript: ENSMUST00000022550
AA Change: S88T

PolyPhen 2 Score 0.996 (Sensitivity: 0.55; Specificity: 0.98)
SMART Domains Protein: ENSMUSP00000022550
Gene: ENSMUSG00000021978
AA Change: S88T

DomainStartEndE-ValueType
transmembrane domain 29 51 N/A INTRINSIC
coiled coil region 81 150 N/A INTRINSIC
Pfam:Exostosin 190 500 1.6e-60 PFAM
Pfam:Glyco_transf_64 663 904 1.3e-101 PFAM
Predicted Effect noncoding transcript
Transcript: ENSMUST00000223989
Predicted Effect probably damaging
Transcript: ENSMUST00000225633
AA Change: S88T

PolyPhen 2 Score 0.996 (Sensitivity: 0.55; Specificity: 0.98)
Coding Region Coverage
  • 1x: 100.0%
  • 3x: 99.9%
  • 10x: 99.7%
  • 20x: 99.1%
Validation Efficiency
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] This gene encodes a single-pass membrane protein which functions as a glycosyltransferase. The encoded protein catalyzes the transfer of N-acetylglucosamine to glycosaminoglycan chains. This reaction is important in heparin and heparan sulfate synthesis. Alternative splicing results in the multiple transcript variants. [provided by RefSeq, Nov 2012]
PHENOTYPE: Mice homozygous for a null mutation display embryonic lethality during organogenesis and lack heparan sulfate derived disaccharides. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 47 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Acaca C A 11: 84,184,816 (GRCm39) D1277E probably benign Het
Anapc7 T C 5: 122,560,689 (GRCm39) S17P probably damaging Het
Atad2b T C 12: 5,060,332 (GRCm39) F909S probably damaging Het
Ccnb1 G A 13: 100,920,112 (GRCm39) A133V probably benign Het
Chd7 A G 4: 8,832,499 (GRCm39) T1125A probably damaging Het
Cyc1 A G 15: 76,227,794 (GRCm39) T11A probably benign Het
Ddx59 G A 1: 136,347,214 (GRCm39) A291T probably damaging Het
Dgkg T A 16: 22,338,387 (GRCm39) probably null Het
Dock8 A G 19: 25,169,585 (GRCm39) D1952G probably damaging Het
Dpf3 A G 12: 83,378,635 (GRCm39) probably null Het
Evi5 T C 5: 107,964,663 (GRCm39) I340V probably benign Het
Fktn A G 4: 53,761,230 (GRCm39) H410R probably benign Het
Fyb2 A T 4: 104,856,579 (GRCm39) K596* probably null Het
Gas2l3 C T 10: 89,249,943 (GRCm39) A392T probably benign Het
Gbp7 T A 3: 142,242,115 (GRCm39) V83E probably benign Het
Gja10 A G 4: 32,601,877 (GRCm39) V169A probably damaging Het
Gnao1 A G 8: 94,682,723 (GRCm39) H303R probably benign Het
Iars2 A G 1: 185,027,727 (GRCm39) *734R probably null Het
Il2ra C T 2: 11,685,227 (GRCm39) R188* probably null Het
Inpp5f A C 7: 128,278,515 (GRCm39) D435A possibly damaging Het
Ints3 T C 3: 90,318,606 (GRCm39) T210A Het
Itpkc A G 7: 26,913,880 (GRCm39) I527T probably benign Het
Kcnrg CACAACAA CACAA 14: 61,845,009 (GRCm39) probably benign Het
Loxl3 C T 6: 83,027,835 (GRCm39) T749I probably benign Het
Lrp1b C T 2: 41,135,951 (GRCm39) probably null Het
Ncapg2 T A 12: 116,379,077 (GRCm39) H190Q probably damaging Het
Nkain2 G A 10: 32,766,262 (GRCm39) P66L unknown Het
Nubpl T C 12: 52,349,494 (GRCm39) F242L probably benign Het
Or4f4-ps1 T C 2: 111,330,131 (GRCm39) V178A possibly damaging Het
Or4x11 T C 2: 89,867,907 (GRCm39) S215P probably damaging Het
Or8b51 A G 9: 38,568,869 (GRCm39) I273T probably benign Het
Paip2b T C 6: 83,787,023 (GRCm39) D71G probably damaging Het
Plch1 T C 3: 63,605,152 (GRCm39) E1584G probably damaging Het
Poglut2 T C 1: 44,152,196 (GRCm39) D271G probably damaging Het
Prkag2 A G 5: 25,074,238 (GRCm39) I489T possibly damaging Het
Ptpn2 C T 18: 67,808,789 (GRCm39) probably null Het
Rims3 G A 4: 120,748,517 (GRCm39) R246H possibly damaging Het
Sorl1 T G 9: 41,907,590 (GRCm39) T1466P probably benign Het
Tbl3 T C 17: 24,926,531 (GRCm39) E3G probably benign Het
Tex2 A G 11: 106,458,978 (GRCm39) S151P unknown Het
Tmem260 C A 14: 48,709,816 (GRCm39) A123E probably damaging Het
Trim45 T C 3: 100,839,306 (GRCm39) V736A unknown Het
Vps8 T C 16: 21,372,893 (GRCm39) L1033P probably damaging Het
Vwa1 G A 4: 155,857,336 (GRCm39) P154L probably damaging Het
Wwc2 GCC GCCC 8: 48,304,959 (GRCm39) probably null Het
Ythdc2 A G 18: 45,006,037 (GRCm39) T1177A probably benign Het
Zfp36l2 A G 17: 84,494,056 (GRCm39) Y194H probably damaging Het
Other mutations in Extl3
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00309:Extl3 APN 14 65,314,438 (GRCm39) missense probably benign 0.08
IGL00329:Extl3 APN 14 65,313,070 (GRCm39) missense probably benign 0.03
IGL00959:Extl3 APN 14 65,314,361 (GRCm39) missense probably benign 0.01
IGL01321:Extl3 APN 14 65,304,211 (GRCm39) missense probably benign
IGL01443:Extl3 APN 14 65,314,919 (GRCm39) missense probably damaging 1.00
IGL01446:Extl3 APN 14 65,314,529 (GRCm39) missense probably benign
IGL01517:Extl3 APN 14 65,314,156 (GRCm39) missense probably damaging 1.00
IGL01955:Extl3 APN 14 65,313,415 (GRCm39) missense probably benign
IGL02073:Extl3 APN 14 65,313,788 (GRCm39) missense probably damaging 1.00
IGL02188:Extl3 APN 14 65,313,154 (GRCm39) missense probably damaging 1.00
IGL02269:Extl3 APN 14 65,315,032 (GRCm39) missense probably damaging 1.00
IGL02476:Extl3 APN 14 65,314,693 (GRCm39) missense probably benign 0.05
IGL02961:Extl3 APN 14 65,294,408 (GRCm39) missense possibly damaging 0.94
G1Funyon:Extl3 UTSW 14 65,313,733 (GRCm39) missense probably damaging 0.98
R0532:Extl3 UTSW 14 65,315,122 (GRCm39) missense probably benign 0.06
R0580:Extl3 UTSW 14 65,313,178 (GRCm39) missense probably damaging 1.00
R1395:Extl3 UTSW 14 65,314,945 (GRCm39) missense possibly damaging 0.95
R1495:Extl3 UTSW 14 65,313,316 (GRCm39) missense probably benign 0.01
R1916:Extl3 UTSW 14 65,315,071 (GRCm39) missense probably benign 0.20
R2409:Extl3 UTSW 14 65,315,017 (GRCm39) missense probably benign 0.02
R2484:Extl3 UTSW 14 65,313,184 (GRCm39) missense probably damaging 1.00
R4669:Extl3 UTSW 14 65,313,745 (GRCm39) missense possibly damaging 0.56
R4764:Extl3 UTSW 14 65,314,769 (GRCm39) missense probably benign 0.01
R4845:Extl3 UTSW 14 65,315,024 (GRCm39) missense probably benign 0.13
R4858:Extl3 UTSW 14 65,313,443 (GRCm39) missense probably benign 0.05
R5049:Extl3 UTSW 14 65,313,481 (GRCm39) missense probably benign 0.00
R5439:Extl3 UTSW 14 65,292,075 (GRCm39) missense probably damaging 1.00
R6196:Extl3 UTSW 14 65,313,584 (GRCm39) missense probably benign
R6251:Extl3 UTSW 14 65,314,375 (GRCm39) missense probably damaging 1.00
R6299:Extl3 UTSW 14 65,314,121 (GRCm39) missense probably benign
R6807:Extl3 UTSW 14 65,314,211 (GRCm39) missense probably damaging 1.00
R6939:Extl3 UTSW 14 65,304,189 (GRCm39) missense possibly damaging 0.93
R6975:Extl3 UTSW 14 65,304,246 (GRCm39) missense probably benign 0.01
R7474:Extl3 UTSW 14 65,314,090 (GRCm39) missense possibly damaging 0.87
R7846:Extl3 UTSW 14 65,313,181 (GRCm39) missense probably damaging 1.00
R7860:Extl3 UTSW 14 65,314,938 (GRCm39) missense probably benign 0.02
R8301:Extl3 UTSW 14 65,313,733 (GRCm39) missense probably damaging 0.98
R8922:Extl3 UTSW 14 65,292,255 (GRCm39) missense probably damaging 1.00
R9329:Extl3 UTSW 14 65,314,765 (GRCm39) missense possibly damaging 0.92
R9703:Extl3 UTSW 14 65,292,103 (GRCm39) missense probably damaging 1.00
R9801:Extl3 UTSW 14 65,314,782 (GRCm39) missense probably benign 0.12
Predicted Primers PCR Primer
(F):5'- CCTTGTAGGAGTGCTCTGTC -3'
(R):5'- TATACCATGTTGCGGAATGGG -3'

Sequencing Primer
(F):5'- CTGGCTAATGACATTCTTGAGC -3'
(R):5'- AACGGTGGTCAGACCTGTATGC -3'
Posted On 2022-09-12