Incidental Mutation 'R7530:Ext2'
ID 583246
Institutional Source Beutler Lab
Gene Symbol Ext2
Ensembl Gene ENSMUSG00000027198
Gene Name exostosin glycosyltransferase 2
Synonyms
MMRRC Submission 045602-MU
Accession Numbers
Essential gene? Essential (E-score: 1.000) question?
Stock # R7530 (G1)
Quality Score 225.009
Status Validated
Chromosome 2
Chromosomal Location 93525978-93652913 bp(-) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) T to A at 93491998 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Histidine to Leucine at position 564 (H564L)
Ref Sequence ENSEMBL: ENSMUSP00000138956 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000042078] [ENSMUST00000111254] [ENSMUST00000184931]
AlphaFold P70428
Predicted Effect probably benign
Transcript: ENSMUST00000042078
SMART Domains Protein: ENSMUSP00000047962
Gene: ENSMUSG00000040310

DomainStartEndE-ValueType
low complexity region 91 108 N/A INTRINSIC
HOX 202 264 1.11e-28 SMART
low complexity region 302 319 N/A INTRINSIC
Pfam:OAR 375 393 1.5e-12 PFAM
Predicted Effect probably benign
Transcript: ENSMUST00000111254
SMART Domains Protein: ENSMUSP00000106885
Gene: ENSMUSG00000040310

DomainStartEndE-ValueType
low complexity region 91 108 N/A INTRINSIC
HOX 202 264 1.11e-28 SMART
Predicted Effect probably benign
Transcript: ENSMUST00000184931
AA Change: H564L

PolyPhen 2 Score 0.002 (Sensitivity: 0.99; Specificity: 0.30)
SMART Domains Protein: ENSMUSP00000138956
Gene: ENSMUSG00000027198
AA Change: H564L

DomainStartEndE-ValueType
transmembrane domain 24 46 N/A INTRINSIC
Pfam:Exostosin 100 380 1.4e-57 PFAM
Pfam:Glyco_transf_64 456 559 9.5e-31 PFAM
Coding Region Coverage
  • 1x: 100.0%
  • 3x: 100.0%
  • 10x: 99.8%
  • 20x: 99.2%
Validation Efficiency 98% (52/53)
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] This gene encodes one of two glycosyltransferases involved in the chain elongation step of heparan sulfate biosynthesis. Mutations in this gene cause the type II form of multiple exostoses. Alternatively spliced transcript variants encoding different isoforms have been noted for this gene. [provided by RefSeq, Jul 2008]
PHENOTYPE: Homozygous null embryos lack heparan sulfate, initiate primitive streak formation but fail to form mesoderm, become growth arrested and die around gastrulation. Heterozygotes show various abnormalities in cartilage differentiation; about one-third form one or more exostoses on the ribs. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 51 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
6430550D23Rik C T 2: 155,845,840 (GRCm39) V6I probably benign Het
Atp10a A G 7: 58,423,724 (GRCm39) T230A probably benign Het
Atp5mc2 A T 15: 102,576,183 (GRCm39) M1K probably null Het
Atp8a1 A C 5: 67,902,971 (GRCm39) L535R Het
Bsn A G 9: 107,989,155 (GRCm39) I2199T probably damaging Het
Ccdc73 A G 2: 104,824,915 (GRCm39) T155A Het
Cdc42bpg T G 19: 6,372,305 (GRCm39) F1430L probably benign Het
Cdc42bpg G T 19: 6,372,306 (GRCm39) V1431L probably benign Het
Chat A T 14: 32,130,915 (GRCm39) Y575* probably null Het
Cimip4 T C 15: 78,270,516 (GRCm39) D84G probably benign Het
Col6a4 A T 9: 105,945,589 (GRCm39) C842S probably damaging Het
Coq2 T C 5: 100,822,008 (GRCm39) S34G probably benign Het
Crybg1 C T 10: 43,875,069 (GRCm39) A680T possibly damaging Het
Ctsr T A 13: 61,310,931 (GRCm39) K38N probably damaging Het
Dpm2 T C 2: 32,462,313 (GRCm39) F33S probably damaging Het
Ecpas A G 4: 58,815,317 (GRCm39) M1322T probably damaging Het
Fbxl2 G T 9: 113,818,241 (GRCm39) H202N probably benign Het
Fra10ac1 A T 19: 38,204,353 (GRCm39) Y74* probably null Het
Greb1 T A 12: 16,767,207 (GRCm39) I332F probably benign Het
Ifnar2 A G 16: 91,201,201 (GRCm39) S481G probably benign Het
Igkv9-123 G A 6: 67,931,381 (GRCm39) P62S possibly damaging Het
Iqub T C 6: 24,450,622 (GRCm39) Q659R probably benign Het
Kansl2 T C 15: 98,426,896 (GRCm39) T242A probably benign Het
Kif28 C T 1: 179,536,045 (GRCm39) G543D probably benign Het
Lsg1 A G 16: 30,401,419 (GRCm39) S93P possibly damaging Het
Med23 T A 10: 24,781,851 (GRCm39) C1052S probably benign Het
Mgam G T 6: 40,686,152 (GRCm39) probably null Het
Mtmr4 C T 11: 87,502,702 (GRCm39) R919W probably damaging Het
Muc5ac G T 7: 141,367,536 (GRCm39) V2986L possibly damaging Het
Myo5b A G 18: 74,864,802 (GRCm39) E1340G probably benign Het
Nkd2 T C 13: 73,995,078 (GRCm39) D40G possibly damaging Het
Nudt5 T C 2: 5,869,179 (GRCm39) L135S probably damaging Het
Oca2 A C 7: 55,981,720 (GRCm39) D614A probably damaging Het
Or1e16 A G 11: 73,279,189 (GRCm39) V221A possibly damaging Het
Or6c201 A C 10: 128,969,849 (GRCm39) probably null Het
Or8k24 T A 2: 86,216,515 (GRCm39) L82F probably damaging Het
Plec C A 15: 76,069,844 (GRCm39) A991S unknown Het
Plekhg2 G A 7: 28,061,353 (GRCm39) R817C probably damaging Het
Plrg1 T A 3: 82,965,989 (GRCm39) L48H probably damaging Het
Prx A G 7: 27,207,397 (GRCm39) E18G probably damaging Het
Ptprf T C 4: 118,069,945 (GRCm39) Y1479C probably damaging Het
Rap1b A T 10: 117,653,357 (GRCm39) Y159* probably null Het
Rbck1 T C 2: 152,166,212 (GRCm39) E242G possibly damaging Het
Rxfp1 T C 3: 79,557,768 (GRCm39) D570G probably benign Het
Slc35f5 G T 1: 125,512,275 (GRCm39) L358F probably damaging Het
Smarcd2 A G 11: 106,156,587 (GRCm39) W274R probably damaging Het
Spata6l A T 19: 28,926,121 (GRCm39) Y43* probably null Het
Ssu72 A G 4: 155,815,786 (GRCm39) T77A probably benign Het
Tomm40 G A 7: 19,436,829 (GRCm39) T297I possibly damaging Het
Urb1 A T 16: 90,558,522 (GRCm39) I1743N probably damaging Het
Utp20 G A 10: 88,588,868 (GRCm39) R2434C probably damaging Het
Other mutations in Ext2
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL01132:Ext2 APN 2 93,621,418 (GRCm39) missense probably benign
IGL01554:Ext2 APN 2 93,642,294 (GRCm39) missense probably damaging 1.00
IGL01768:Ext2 APN 2 93,621,455 (GRCm39) splice site probably benign
IGL02160:Ext2 APN 2 93,643,929 (GRCm39) missense probably benign
IGL02677:Ext2 APN 2 93,537,590 (GRCm39) missense probably damaging 1.00
IGL02939:Ext2 APN 2 93,534,964 (GRCm39) splice site probably null
IGL03013:Ext2 APN 2 93,537,571 (GRCm39) intron probably benign
IGL03286:Ext2 APN 2 93,537,617 (GRCm39) missense probably damaging 1.00
R0018:Ext2 UTSW 2 93,626,037 (GRCm39) missense probably damaging 1.00
R0526:Ext2 UTSW 2 93,636,430 (GRCm39) missense probably damaging 0.99
R0580:Ext2 UTSW 2 93,626,070 (GRCm39) missense probably benign 0.31
R1383:Ext2 UTSW 2 93,636,458 (GRCm39) missense possibly damaging 0.92
R1538:Ext2 UTSW 2 93,537,632 (GRCm39) missense probably damaging 1.00
R1743:Ext2 UTSW 2 93,560,570 (GRCm39) missense probably damaging 1.00
R1792:Ext2 UTSW 2 93,534,890 (GRCm39) missense probably damaging 1.00
R2874:Ext2 UTSW 2 93,570,031 (GRCm39) missense possibly damaging 0.95
R3122:Ext2 UTSW 2 93,644,170 (GRCm39) missense probably damaging 1.00
R4624:Ext2 UTSW 2 93,533,545 (GRCm39) missense probably benign 0.26
R4653:Ext2 UTSW 2 93,526,504 (GRCm39) missense probably benign 0.22
R4826:Ext2 UTSW 2 93,592,975 (GRCm39) missense probably benign 0.15
R4828:Ext2 UTSW 2 93,626,112 (GRCm39) missense probably benign 0.08
R4936:Ext2 UTSW 2 93,644,024 (GRCm39) nonsense probably null
R5311:Ext2 UTSW 2 93,526,606 (GRCm39) missense probably benign 0.04
R5799:Ext2 UTSW 2 93,642,317 (GRCm39) missense probably benign 0.01
R5850:Ext2 UTSW 2 93,644,004 (GRCm39) missense possibly damaging 0.94
R6230:Ext2 UTSW 2 93,592,965 (GRCm39) missense probably damaging 1.00
R6488:Ext2 UTSW 2 93,636,430 (GRCm39) missense probably damaging 0.99
R7047:Ext2 UTSW 2 93,570,002 (GRCm39) missense probably damaging 0.99
R7173:Ext2 UTSW 2 93,643,957 (GRCm39) missense probably damaging 1.00
R7391:Ext2 UTSW 2 93,560,612 (GRCm39) missense probably damaging 1.00
R7545:Ext2 UTSW 2 93,644,108 (GRCm39) missense probably benign
R7939:Ext2 UTSW 2 93,560,601 (GRCm39) missense probably damaging 1.00
R8160:Ext2 UTSW 2 93,644,107 (GRCm39) missense probably benign 0.05
R9072:Ext2 UTSW 2 93,644,144 (GRCm39) missense probably benign 0.28
R9245:Ext2 UTSW 2 93,534,836 (GRCm39) missense probably benign 0.23
R9338:Ext2 UTSW 2 93,526,603 (GRCm39) missense probably damaging 1.00
R9430:Ext2 UTSW 2 93,592,999 (GRCm39) missense possibly damaging 0.84
R9487:Ext2 UTSW 2 93,592,956 (GRCm39) missense probably damaging 1.00
Z1177:Ext2 UTSW 2 93,533,620 (GRCm39) critical splice acceptor site probably benign
Predicted Primers PCR Primer
(F):5'- TTTGGACGTTCTAGACCAACACC -3'
(R):5'- ACACTACTGCTGTATTTGGCTC -3'

Sequencing Primer
(F):5'- GACGTTCTAGACCAACACCTTTCC -3'
(R):5'- TATGGTTTGGACCCCAGCAACTG -3'
Posted On 2019-10-17