Incidental Mutation 'R8119:Fam20b'
ID 631378
Institutional Source Beutler Lab
Gene Symbol Fam20b
Ensembl Gene ENSMUSG00000033557
Gene Name FAM20B, glycosaminoglycan xylosylkinase
Synonyms C530043G21Rik
MMRRC Submission 067548-MU
Accession Numbers
Essential gene? Essential (E-score: 1.000) question?
Stock # R8119 (G1)
Quality Score 225.009
Status Validated
Chromosome 1
Chromosomal Location 156506102-156546656 bp(-) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) T to G at 156518072 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Threonine to Proline at position 241 (T241P)
Ref Sequence ENSEMBL: ENSMUSP00000083322 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000086153] [ENSMUST00000122424]
AlphaFold Q8VCS3
Predicted Effect probably damaging
Transcript: ENSMUST00000086153
AA Change: T241P

PolyPhen 2 Score 1.000 (Sensitivity: 0.00; Specificity: 1.00)
SMART Domains Protein: ENSMUSP00000083322
Gene: ENSMUSG00000033557
AA Change: T241P

DomainStartEndE-ValueType
transmembrane domain 7 25 N/A INTRINSIC
Pfam:Fam20C 188 399 3.1e-89 PFAM
Predicted Effect probably damaging
Transcript: ENSMUST00000122424
AA Change: T241P

PolyPhen 2 Score 1.000 (Sensitivity: 0.00; Specificity: 1.00)
SMART Domains Protein: ENSMUSP00000112534
Gene: ENSMUSG00000033557
AA Change: T241P

DomainStartEndE-ValueType
transmembrane domain 7 25 N/A INTRINSIC
Pfam:DUF1193 187 402 2e-95 PFAM
Coding Region Coverage
  • 1x: 99.8%
  • 3x: 99.6%
  • 10x: 98.7%
  • 20x: 95.2%
Validation Efficiency 100% (52/52)
MGI Phenotype PHENOTYPE: Mice homozygous for a gene trapped allele exhibit complete embryonic lethality associated with decreased embryo size, multisystem organ hypoplasia, and delayed skeleton, digestive system, eye, liver, and lung development. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 49 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Abca6 T C 11: 110,087,930 (GRCm39) I1066V probably benign Het
Abcd2 T C 15: 91,033,197 (GRCm39) T740A probably benign Het
Amigo1 T C 3: 108,094,852 (GRCm39) L117P probably damaging Het
Ankar A T 1: 72,686,160 (GRCm39) S1347T probably damaging Het
Apol7e T C 15: 77,601,956 (GRCm39) S185P probably damaging Het
Ash1l G A 3: 88,942,734 (GRCm39) C2088Y probably damaging Het
Atrnl1 A G 19: 57,630,895 (GRCm39) T221A probably benign Het
Caln1 A G 5: 130,851,825 (GRCm39) S205G probably damaging Het
Cfap54 T C 10: 92,704,672 (GRCm39) I2803V unknown Het
Cfh A C 1: 140,047,753 (GRCm39) F477V possibly damaging Het
Cldn23 A G 8: 36,293,056 (GRCm39) V144A probably damaging Het
Csmd1 A G 8: 17,077,310 (GRCm39) S116P probably damaging Het
Dgkd A T 1: 87,845,689 (GRCm39) T299S possibly damaging Het
Fndc3b A T 3: 27,505,493 (GRCm39) M925K probably benign Het
Ftdc1 C A 16: 58,437,211 (GRCm39) M32I probably benign Het
Ints3 C T 3: 90,299,607 (GRCm39) R987Q probably damaging Het
Kctd10 A G 5: 114,505,316 (GRCm39) V226A probably damaging Het
Lypd2 A G 15: 74,604,881 (GRCm39) V38A probably benign Het
Map3k1 T C 13: 111,909,156 (GRCm39) R265G possibly damaging Het
Mcc C T 18: 44,601,500 (GRCm39) V610M possibly damaging Het
Mocs1 C T 17: 49,756,547 (GRCm39) R244C probably damaging Het
Nav2 A G 7: 49,103,232 (GRCm39) T677A probably damaging Het
Ngp A G 9: 110,251,421 (GRCm39) N150D probably benign Het
Nipbl C T 15: 8,388,696 (GRCm39) R308Q probably benign Het
Nsrp1 A G 11: 76,939,177 (GRCm39) probably null Het
Or2y16 A T 11: 49,334,953 (GRCm39) I92F probably damaging Het
Or4f47 T A 2: 111,972,908 (GRCm39) I206N probably damaging Het
Or52n20 A T 7: 104,320,061 (GRCm39) I51F probably damaging Het
Pbld2 A T 10: 62,889,656 (GRCm39) D146V probably benign Het
Prss22 T A 17: 24,213,701 (GRCm39) K197* probably null Het
Ptprd G T 4: 76,047,263 (GRCm39) S87R probably benign Het
Rictor C T 15: 6,801,635 (GRCm39) S441L probably benign Het
Slc25a35 T C 11: 68,862,798 (GRCm39) L251S probably benign Het
Slx4 A T 16: 3,803,136 (GRCm39) L1226* probably null Het
Smarca4 T C 9: 21,558,922 (GRCm39) V651A possibly damaging Het
Smarcad1 T C 6: 65,071,303 (GRCm39) F583L probably benign Het
Taf2 T C 15: 54,894,526 (GRCm39) K932E probably benign Het
Trav8d-1 A T 14: 53,016,425 (GRCm39) T104S probably benign Het
Trmt9b G A 8: 36,965,576 (GRCm39) W32* probably null Het
Trpm4 A T 7: 44,976,552 (GRCm39) V155D probably damaging Het
Ttc6 A T 12: 57,752,429 (GRCm39) Y1445F possibly damaging Het
Ttll5 C A 12: 86,067,322 (GRCm39) N1270K probably damaging Het
Usp40 G T 1: 87,895,400 (GRCm39) probably null Het
Vmn2r74 T C 7: 85,610,690 (GRCm39) M1V probably null Het
Wwox T C 8: 115,433,108 (GRCm39) V258A probably damaging Het
Zfp217 G A 2: 169,961,571 (GRCm39) S252F possibly damaging Het
Zfp770 G A 2: 114,027,508 (GRCm39) T187I probably damaging Het
Zranb2 A G 3: 157,241,969 (GRCm39) probably null Het
Zscan4-ps3 A G 7: 11,344,267 (GRCm39) Q75R probably damaging Het
Other mutations in Fam20b
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL01611:Fam20b APN 1 156,530,035 (GRCm39) missense probably benign 0.13
Cancelled UTSW 1 156,533,407 (GRCm39) missense probably damaging 1.00
consequences UTSW 1 156,518,123 (GRCm39) missense probably damaging 1.00
delisted UTSW 1 156,518,215 (GRCm39) missense probably benign 0.18
Head_over_heels UTSW 1 156,518,140 (GRCm39) missense probably damaging 1.00
minuscule UTSW 1 156,533,310 (GRCm39) missense probably damaging 1.00
squirt UTSW 1 156,533,299 (GRCm39) missense probably damaging 1.00
R0105:Fam20b UTSW 1 156,518,140 (GRCm39) missense probably damaging 1.00
R0105:Fam20b UTSW 1 156,518,140 (GRCm39) missense probably damaging 1.00
R0389:Fam20b UTSW 1 156,509,023 (GRCm39) missense probably benign 0.00
R0443:Fam20b UTSW 1 156,509,023 (GRCm39) missense probably benign 0.00
R0518:Fam20b UTSW 1 156,515,026 (GRCm39) missense possibly damaging 0.70
R1466:Fam20b UTSW 1 156,513,758 (GRCm39) splice site probably benign
R1584:Fam20b UTSW 1 156,513,758 (GRCm39) splice site probably benign
R2014:Fam20b UTSW 1 156,533,511 (GRCm39) missense possibly damaging 0.92
R4085:Fam20b UTSW 1 156,533,445 (GRCm39) missense probably benign 0.01
R4755:Fam20b UTSW 1 156,515,066 (GRCm39) nonsense probably null
R5254:Fam20b UTSW 1 156,533,310 (GRCm39) missense probably damaging 1.00
R5471:Fam20b UTSW 1 156,533,299 (GRCm39) missense probably damaging 1.00
R6886:Fam20b UTSW 1 156,518,081 (GRCm39) missense probably damaging 1.00
R6944:Fam20b UTSW 1 156,515,091 (GRCm39) missense probably benign 0.02
R7013:Fam20b UTSW 1 156,518,135 (GRCm39) missense probably damaging 1.00
R7205:Fam20b UTSW 1 156,529,968 (GRCm39) critical splice donor site probably null
R7215:Fam20b UTSW 1 156,518,123 (GRCm39) missense probably damaging 1.00
R7286:Fam20b UTSW 1 156,509,012 (GRCm39) missense probably benign 0.28
R7684:Fam20b UTSW 1 156,518,215 (GRCm39) missense probably benign 0.18
R8036:Fam20b UTSW 1 156,533,407 (GRCm39) missense probably damaging 1.00
R9231:Fam20b UTSW 1 156,509,084 (GRCm39) missense probably benign 0.40
R9562:Fam20b UTSW 1 156,530,010 (GRCm39) nonsense probably null
Predicted Primers PCR Primer
(F):5'- TCTTTAGTGATAAAAGAGGGCTGAC -3'
(R):5'- CAGGTTTCTAATTTTCATGGTGCC -3'

Sequencing Primer
(F):5'- GGGCTGACAAACCACCACTG -3'
(R):5'- AGCTGTTAAATCTTGTTTGAGGGAG -3'
Posted On 2020-06-30