Incidental Mutation 'R4669:Extl3'
ID352303
Institutional Source Beutler Lab
Gene Symbol Extl3
Ensembl Gene ENSMUSG00000021978
Gene Nameexostoses (multiple)-like 3
Synonyms2900009G18Rik
MMRRC Submission 041925-MU
Accession Numbers
Is this an essential gene? Essential (E-score: 1.000) question?
Stock #R4669 (G1)
Quality Score225
Status Not validated
Chromosome14
Chromosomal Location65052060-65149855 bp(-) (GRCm38)
Type of Mutationmissense
DNA Base Change (assembly) T to A at 65076296 bp
ZygosityHeterozygous
Amino Acid Change Asparagine to Isoleucine at position 479 (N479I)
Ref Sequence ENSEMBL: ENSMUSP00000153547 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000022550] [ENSMUST00000225633]
Predicted Effect possibly damaging
Transcript: ENSMUST00000022550
AA Change: N479I

PolyPhen 2 Score 0.565 (Sensitivity: 0.88; Specificity: 0.91)
SMART Domains Protein: ENSMUSP00000022550
Gene: ENSMUSG00000021978
AA Change: N479I

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 possibly damaging
Transcript: ENSMUST00000225633
AA Change: N479I

PolyPhen 2 Score 0.565 (Sensitivity: 0.88; Specificity: 0.91)
Coding Region Coverage
  • 1x: 99.2%
  • 3x: 98.6%
  • 10x: 97.3%
  • 20x: 95.4%
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: 98 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Acad8 A G 9: 26,990,627 L147P probably damaging Het
Acan A G 7: 79,101,142 E464G probably benign Het
Agap1 A G 1: 89,837,806 probably null Het
Akap13 A G 7: 75,729,094 T2128A probably damaging Het
Ap2a1 A T 7: 44,902,919 probably benign Het
Arap3 T C 18: 37,996,254 D217G probably benign Het
Arl2 C A 19: 6,134,686 R179L probably damaging Het
Atg2a T A 19: 6,258,987 probably null Het
B3gat1 T A 9: 26,751,756 L6Q probably benign Het
Bcl10 A G 3: 145,930,572 N75S probably damaging Het
Bmpr2 T C 1: 59,867,716 L656S probably damaging Het
Brms1l A G 12: 55,841,571 E48G possibly damaging Het
C2cd2l A T 9: 44,315,025 N414K possibly damaging Het
Capn2 C T 1: 182,470,780 C640Y probably benign Het
Ccdc153 G T 9: 44,245,724 R99M probably damaging Het
Ccdc51 A G 9: 109,090,962 N142S probably benign Het
Ccdc58 A G 16: 36,082,719 D27G probably damaging Het
Cdipt A G 7: 126,978,406 H108R possibly damaging Het
Ceacam20 T C 7: 19,986,027 Y495H probably damaging Het
Celf2 T C 2: 6,721,528 I47V probably benign Het
Cts3 C T 13: 61,566,823 E223K probably benign Het
Cyp2a22 T C 7: 26,937,855 D168G possibly damaging Het
Cyp2c67 T A 19: 39,643,654 H90L probably benign Het
Ddx4 T C 13: 112,622,244 Y261C probably damaging Het
Dnah17 T C 11: 118,074,293 T2308A probably benign Het
Dnah6 T C 6: 73,037,688 T3587A probably damaging Het
Dpy19l1 C T 9: 24,432,368 V494I possibly damaging Het
Dse T G 10: 34,153,012 Y694S probably damaging Het
Emilin3 T C 2: 160,910,797 I78V probably benign Het
Esam T A 9: 37,536,656 Y195* probably null Het
Fat2 A G 11: 55,311,615 V211A probably benign Het
Ganc G T 2: 120,431,067 V343F probably benign Het
Ggt5 T C 10: 75,603,031 L121P probably damaging Het
Gnmt A T 17: 46,726,299 C186* probably null Het
Gpr75 A T 11: 30,892,072 I326F probably damaging Het
Gsdme C T 6: 50,208,122 V451M probably damaging Het
H2-T23 G T 17: 36,031,798 D149E probably damaging Het
Hmcn2 G T 2: 31,435,792 R4277L probably benign Het
Irf9 C A 14: 55,605,766 H94N probably benign Het
Jhy T C 9: 40,961,153 N20S probably benign Het
Klf17 C A 4: 117,760,371 C263F probably damaging Het
Lama5 T C 2: 180,180,637 Y2881C probably damaging Het
Lig1 T G 7: 13,311,028 I882S probably damaging Het
Ltn1 A T 16: 87,418,487 M420K possibly damaging Het
Mael T C 1: 166,235,508 E125G probably damaging Het
Mib2 C T 4: 155,657,415 D275N possibly damaging Het
Mical3 C T 6: 120,957,703 R1805Q probably damaging Het
Mllt10 A G 2: 18,203,633 D158G probably damaging Het
Mocs1 A G 17: 49,454,585 D569G possibly damaging Het
Msh6 T C 17: 87,984,806 S330P possibly damaging Het
Mtmr2 T C 9: 13,795,964 S199P probably damaging Het
Ndufaf5 T C 2: 140,187,755 V164A probably benign Het
Nek9 T C 12: 85,314,204 E518G probably benign Het
Nfatc2 T C 2: 168,571,490 I72V probably benign Het
Nlrp9c C T 7: 26,375,368 A746T possibly damaging Het
Nupl2 A G 5: 24,182,417 R402G probably benign Het
Ogdh G T 11: 6,340,600 C406F probably benign Het
Olfr1045 A T 2: 86,197,933 M273K possibly damaging Het
Olfr1225 G A 2: 89,170,901 H104Y probably damaging Het
Olfr146 T A 9: 39,019,379 Y54F probably benign Het
Olfr411 A G 11: 74,346,963 V207A probably benign Het
Olfr881 A T 9: 37,993,085 I198F possibly damaging Het
Otof A G 5: 30,420,974 probably null Het
Pcdhb17 T C 18: 37,486,206 S350P probably damaging Het
Phf3 T C 1: 30,829,946 T674A probably damaging Het
Pikfyve T A 1: 65,250,273 C1235S probably damaging Het
Ppfia3 T C 7: 45,352,093 E465G probably damaging Het
Prkg1 T A 19: 31,664,239 I15F probably damaging Het
Rab5c A G 11: 100,720,017 F22L probably damaging Het
Raf1 A G 6: 115,632,919 S220P probably damaging Het
Rgl1 T G 1: 152,521,371 R716S probably damaging Het
Rhbg C A 3: 88,245,966 W205L probably damaging Het
Rimbp3 A G 16: 17,209,189 E159G possibly damaging Het
Ryr1 T C 7: 29,059,831 D3338G probably null Het
Sash1 T C 10: 8,730,385 N747S probably benign Het
Serpina3g A T 12: 104,239,220 I73F probably damaging Het
Sfxn2 C A 19: 46,585,774 N134K probably damaging Het
Slc12a6 A G 2: 112,354,295 H853R probably damaging Het
Slc16a12 C T 19: 34,672,565 D357N probably damaging Het
Slc39a8 T C 3: 135,856,011 Y164H probably benign Het
Snx9 A G 17: 5,927,224 K518E probably damaging Het
Spdye4c G A 2: 128,592,353 V5I possibly damaging Het
Spef2 A G 15: 9,676,373 V704A probably benign Het
Stard3nl T A 13: 19,376,519 N29Y probably damaging Het
Strap C A 6: 137,735,386 S11* probably null Het
Synpo2 A G 3: 123,113,063 L868P probably damaging Het
Tenm2 A G 11: 36,010,487 V2474A probably damaging Het
Tm9sf4 T A 2: 153,187,308 V92D probably damaging Het
Tmf1 A T 6: 97,170,427 M526K probably benign Het
Top2b T G 14: 16,409,189 I777M probably damaging Het
Ttc39d A G 17: 80,217,639 I576V probably benign Het
Upk1a T G 7: 30,605,129 T193P probably benign Het
Vmn2r67 A T 7: 85,150,524 V502E probably benign Het
Wdr17 A G 8: 54,690,048 V189A possibly damaging Het
Wrap73 A T 4: 154,151,696 S161C probably benign Het
Zfp568 A G 7: 30,023,277 H549R probably damaging Het
Zfp605 T A 5: 110,127,361 M115K possibly damaging Het
Zp1 T A 19: 10,918,905 H152L probably benign Het
Other mutations in Extl3
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00309:Extl3 APN 14 65076989 missense probably benign 0.08
IGL00329:Extl3 APN 14 65075621 missense probably benign 0.03
IGL00959:Extl3 APN 14 65076912 missense probably benign 0.01
IGL01321:Extl3 APN 14 65066762 missense probably benign
IGL01443:Extl3 APN 14 65077470 missense probably damaging 1.00
IGL01446:Extl3 APN 14 65077080 missense probably benign
IGL01517:Extl3 APN 14 65076707 missense probably damaging 1.00
IGL01955:Extl3 APN 14 65075966 missense probably benign
IGL02073:Extl3 APN 14 65076339 missense probably damaging 1.00
IGL02188:Extl3 APN 14 65075705 missense probably damaging 1.00
IGL02269:Extl3 APN 14 65077583 missense probably damaging 1.00
IGL02476:Extl3 APN 14 65077244 missense probably benign 0.05
IGL02961:Extl3 APN 14 65056959 missense possibly damaging 0.94
R0532:Extl3 UTSW 14 65077673 missense probably benign 0.06
R0580:Extl3 UTSW 14 65075729 missense probably damaging 1.00
R1395:Extl3 UTSW 14 65077496 missense possibly damaging 0.95
R1495:Extl3 UTSW 14 65075867 missense probably benign 0.01
R1916:Extl3 UTSW 14 65077622 missense probably benign 0.20
R2409:Extl3 UTSW 14 65077568 missense probably benign 0.02
R2484:Extl3 UTSW 14 65075735 missense probably damaging 1.00
R4764:Extl3 UTSW 14 65077320 missense probably benign 0.01
R4845:Extl3 UTSW 14 65077575 missense probably benign 0.13
R4858:Extl3 UTSW 14 65075994 missense probably benign 0.05
R5049:Extl3 UTSW 14 65076032 missense probably benign 0.00
R5439:Extl3 UTSW 14 65054626 missense probably damaging 1.00
R6196:Extl3 UTSW 14 65076135 missense probably benign
R6251:Extl3 UTSW 14 65076926 missense probably damaging 1.00
R6299:Extl3 UTSW 14 65076672 missense probably benign
R6807:Extl3 UTSW 14 65076762 missense probably damaging 1.00
R6939:Extl3 UTSW 14 65066740 missense possibly damaging 0.93
R6975:Extl3 UTSW 14 65066797 missense probably benign 0.01
Predicted Primers PCR Primer
(F):5'- TGCTTTGCCTGAACGATGG -3'
(R):5'- GGAGTTACTGAAGCTCTCCACC -3'

Sequencing Primer
(F):5'- CTGGGATCTGAATTCGAGTCCTAATC -3'
(R):5'- ACTGAAGCTCTCCACCTTCGC -3'
Posted On2015-10-08