Incidental Mutation 'R5274:Ttc21b'
ID 403801
Institutional Source Beutler Lab
Gene Symbol Ttc21b
Ensembl Gene ENSMUSG00000034848
Gene Name tetratricopeptide repeat domain 21B
Synonyms Thm1, line 158, aln, 2410066K11Rik
MMRRC Submission 042837-MU
Accession Numbers
Essential gene? Essential (E-score: 1.000) question?
Stock # R5274 (G1)
Quality Score 225
Status Not validated
Chromosome 2
Chromosomal Location 66014671-66086961 bp(-) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) T to C at 66066627 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Glutamic Acid to Glycine at position 342 (E342G)
Ref Sequence ENSEMBL: ENSMUSP00000131758 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000102718] [ENSMUST00000125446]
AlphaFold Q0HA38
Predicted Effect possibly damaging
Transcript: ENSMUST00000102718
AA Change: E342G

PolyPhen 2 Score 0.889 (Sensitivity: 0.82; Specificity: 0.94)
SMART Domains Protein: ENSMUSP00000099779
Gene: ENSMUSG00000034848
AA Change: E342G

DomainStartEndE-ValueType
Blast:TPR 109 141 5e-12 BLAST
Blast:TPR 178 211 3e-12 BLAST
TPR 324 357 4.21e1 SMART
low complexity region 379 390 N/A INTRINSIC
TPR 492 525 8.51e0 SMART
TPR 526 559 5.92e1 SMART
TPR 563 596 7.69e1 SMART
TPR 721 754 3.07e-5 SMART
TPR 755 788 9.45e0 SMART
TPR 790 821 9.24e1 SMART
TPR 830 863 3.05e0 SMART
TPR 883 916 1.55e-1 SMART
TPR 917 950 8.74e0 SMART
TPR 951 984 6.75e1 SMART
Blast:TPR 1023 1054 5e-13 BLAST
Blast:TPR 1156 1189 1e-12 BLAST
TPR 1196 1229 9.7e0 SMART
TPR 1265 1298 1.02e1 SMART
Predicted Effect possibly damaging
Transcript: ENSMUST00000125446
AA Change: E342G

PolyPhen 2 Score 0.889 (Sensitivity: 0.82; Specificity: 0.94)
SMART Domains Protein: ENSMUSP00000131758
Gene: ENSMUSG00000034848
AA Change: E342G

DomainStartEndE-ValueType
Blast:TPR 108 141 3e-12 BLAST
Blast:TPR 178 211 3e-12 BLAST
TPR 324 357 4.21e1 SMART
low complexity region 379 390 N/A INTRINSIC
TPR 492 525 8.51e0 SMART
TPR 526 559 5.92e1 SMART
TPR 563 596 7.69e1 SMART
TPR 721 754 3.07e-5 SMART
TPR 755 788 9.45e0 SMART
TPR 790 821 9.24e1 SMART
TPR 830 863 3.05e0 SMART
TPR 883 916 1.55e-1 SMART
TPR 917 950 8.74e0 SMART
TPR 951 984 6.75e1 SMART
Blast:TPR 1023 1054 4e-13 BLAST
Blast:TPR 1156 1189 9e-13 BLAST
TPR 1196 1229 9.7e0 SMART
Predicted Effect noncoding transcript
Transcript: ENSMUST00000131503
Predicted Effect noncoding transcript
Transcript: ENSMUST00000169968
Coding Region Coverage
  • 1x: 99.5%
  • 3x: 98.9%
  • 10x: 98.0%
  • 20x: 96.9%
Validation Efficiency
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] This gene encodes a member of TTC21 family, containing several tetratricopeptide repeat (TPR) domains. This protein is localized to the cilium axoneme, and may play a role in retrograde intraflagellar transport in cilia. Mutations in this gene are associated with various ciliopathies, nephronophthisis 12, and asphyxiating thoracic dystrophy 4. [provided by RefSeq, Oct 2011]
PHENOTYPE: Homozygous mutation of this gene is embryonic lethal. Mutant embryos exhibit several deformities including polydactyly, microphthalmia, irregular shape of the long bones, rib fusion and truncation, neural tube defects, and abnormal brain structure. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 60 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
4921539E11Rik C T 4: 103,092,856 (GRCm39) R155H probably benign Het
Ace T C 11: 105,858,863 (GRCm39) M19T probably benign Het
Agl A G 3: 116,566,135 (GRCm39) L995P probably damaging Het
AY761185 T C 8: 21,433,889 (GRCm39) N90S unknown Het
Brca2 T C 5: 150,463,154 (GRCm39) S973P probably benign Het
Cacna1e T C 1: 154,576,250 (GRCm39) T66A probably damaging Het
Cbarp T C 10: 79,967,649 (GRCm39) S531G possibly damaging Het
Cby2 A G 14: 75,820,666 (GRCm39) V362A probably benign Het
Cd96 G T 16: 45,890,066 (GRCm39) T319K possibly damaging Het
Ceacam23 T C 7: 17,649,642 (GRCm39) probably null Het
Chil5 A C 3: 105,936,169 (GRCm39) F41C probably damaging Het
Col24a1 A C 3: 145,190,433 (GRCm39) E1239D probably benign Het
Dip2b A G 15: 100,109,985 (GRCm39) E1490G possibly damaging Het
Dync1li1 T C 9: 114,544,273 (GRCm39) V315A possibly damaging Het
Dync2h1 T C 9: 7,116,540 (GRCm39) S99G probably benign Het
Dynlt5 A T 4: 102,859,768 (GRCm39) T103S possibly damaging Het
E2f8 C T 7: 48,516,925 (GRCm39) R818H probably damaging Het
Eomes T C 9: 118,309,597 (GRCm39) V250A probably damaging Het
Esyt3 T C 9: 99,200,350 (GRCm39) T615A probably benign Het
Fbxo38 A T 18: 62,648,140 (GRCm39) D799E probably damaging Het
Fdft1 A G 14: 63,389,792 (GRCm39) F288S probably damaging Het
Gm14325 G A 2: 177,474,777 (GRCm39) H102Y possibly damaging Het
Gm4871 C G 5: 144,967,180 (GRCm39) E185Q probably damaging Het
Gm5901 C A 7: 105,026,655 (GRCm39) P141Q probably damaging Het
Herc1 T A 9: 66,306,691 (GRCm39) I933N probably benign Het
Ifih1 T C 2: 62,442,062 (GRCm39) Q385R probably benign Het
Ighmbp2 T C 19: 3,315,518 (GRCm39) E634G probably damaging Het
Klk6 C G 7: 43,478,553 (GRCm39) probably null Het
Kmt2d A G 15: 98,752,111 (GRCm39) probably benign Het
Lig3 T A 11: 82,688,118 (GRCm39) probably null Het
Lrp1b T C 2: 41,234,456 (GRCm39) D310G probably null Het
Mroh6 A G 15: 75,756,849 (GRCm39) V571A possibly damaging Het
Olfm5 A G 7: 103,809,190 (GRCm39) S132P probably damaging Het
Or52n20 T C 7: 104,320,733 (GRCm39) S275P probably damaging Het
Or5p64 A T 7: 107,854,842 (GRCm39) F168I probably benign Het
Pacc1 T C 1: 191,080,665 (GRCm39) V295A probably damaging Het
Patj G C 4: 98,407,218 (GRCm39) S4T probably damaging Het
Pcdhga12 T A 18: 37,899,475 (GRCm39) C102* probably null Het
Pik3ap1 T C 19: 41,270,391 (GRCm39) D766G possibly damaging Het
Plch2 A T 4: 155,083,411 (GRCm39) L408Q probably damaging Het
Pnma2 G T 14: 67,154,209 (GRCm39) R211L probably damaging Het
Prkg2 T A 5: 99,117,850 (GRCm39) H468L probably damaging Het
Rad1 T A 15: 10,488,059 (GRCm39) probably null Het
Rims3 A G 4: 120,748,571 (GRCm39) D264G probably damaging Het
Rnf123 AT ATT 9: 107,941,202 (GRCm39) probably null Het
Rrm2 T A 12: 24,760,406 (GRCm39) Y75* probably null Het
Sall3 T C 18: 81,013,052 (GRCm39) N1128S probably benign Het
Slc26a5 T C 5: 22,018,899 (GRCm39) T610A possibly damaging Het
Snx29 G T 16: 11,556,268 (GRCm39) E766D probably damaging Het
Sox17 A G 1: 4,562,111 (GRCm39) V298A possibly damaging Het
Ss18 G A 18: 14,774,106 (GRCm39) Q228* probably null Het
Tas2r121 A G 6: 132,677,811 (GRCm39) S54P probably damaging Het
Ubap2l A G 3: 89,920,037 (GRCm39) Y818H probably damaging Het
Usp15 C A 10: 123,004,256 (GRCm39) R166I probably damaging Het
Vmn1r34 T G 6: 66,614,123 (GRCm39) H205P probably damaging Het
Vmn2r22 A T 6: 123,627,593 (GRCm39) M1K probably null Het
Vps51 T G 19: 6,121,063 (GRCm39) E283D probably benign Het
Zdhhc1 T C 8: 106,210,402 (GRCm39) N5S probably benign Het
Zfp758 T A 17: 22,594,836 (GRCm39) C441S probably benign Het
Zp2 T C 7: 119,737,315 (GRCm39) E291G possibly damaging Het
Other mutations in Ttc21b
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00465:Ttc21b APN 2 66,073,119 (GRCm39) missense probably benign 0.00
IGL00467:Ttc21b APN 2 66,018,708 (GRCm39) missense probably damaging 1.00
IGL00721:Ttc21b APN 2 66,057,122 (GRCm39) missense probably benign 0.06
IGL00837:Ttc21b APN 2 66,065,915 (GRCm39) critical splice donor site probably null
IGL01317:Ttc21b APN 2 66,018,700 (GRCm39) missense probably benign 0.00
IGL01485:Ttc21b APN 2 66,082,234 (GRCm39) splice site probably benign
IGL01739:Ttc21b APN 2 66,068,200 (GRCm39) missense probably benign
IGL02282:Ttc21b APN 2 66,022,081 (GRCm39) missense probably damaging 0.96
IGL02431:Ttc21b APN 2 66,082,229 (GRCm39) splice site probably benign
IGL02478:Ttc21b APN 2 66,018,624 (GRCm39) missense probably benign 0.05
IGL02487:Ttc21b APN 2 66,065,500 (GRCm39) missense probably benign 0.02
IGL03327:Ttc21b APN 2 66,068,192 (GRCm39) missense possibly damaging 0.92
IGL03346:Ttc21b APN 2 66,068,192 (GRCm39) missense possibly damaging 0.92
plus-sized UTSW 2 66,073,023 (GRCm39) missense probably damaging 1.00
puffer UTSW 2 66,057,244 (GRCm39) missense probably benign 0.12
PIT4696001:Ttc21b UTSW 2 66,061,563 (GRCm39) splice site probably null
R0049:Ttc21b UTSW 2 66,053,908 (GRCm39) missense probably damaging 1.00
R0049:Ttc21b UTSW 2 66,053,908 (GRCm39) missense probably damaging 1.00
R0373:Ttc21b UTSW 2 66,018,670 (GRCm39) missense probably damaging 0.99
R0440:Ttc21b UTSW 2 66,066,726 (GRCm39) missense probably benign 0.03
R0504:Ttc21b UTSW 2 66,053,142 (GRCm39) splice site probably benign
R0600:Ttc21b UTSW 2 66,069,914 (GRCm39) missense probably damaging 0.99
R0621:Ttc21b UTSW 2 66,056,355 (GRCm39) missense probably benign 0.07
R0633:Ttc21b UTSW 2 66,066,577 (GRCm39) missense probably benign
R0863:Ttc21b UTSW 2 66,073,117 (GRCm39) missense probably benign
R1617:Ttc21b UTSW 2 66,056,379 (GRCm39) missense probably benign 0.22
R1837:Ttc21b UTSW 2 66,028,106 (GRCm39) missense probably benign 0.01
R1844:Ttc21b UTSW 2 66,053,921 (GRCm39) nonsense probably null
R2120:Ttc21b UTSW 2 66,057,098 (GRCm39) missense probably benign 0.12
R2205:Ttc21b UTSW 2 66,065,467 (GRCm39) missense possibly damaging 0.51
R2392:Ttc21b UTSW 2 66,037,794 (GRCm39) critical splice donor site probably null
R3689:Ttc21b UTSW 2 66,054,488 (GRCm39) missense probably benign 0.22
R3810:Ttc21b UTSW 2 66,082,577 (GRCm39) critical splice acceptor site probably null
R3847:Ttc21b UTSW 2 66,073,023 (GRCm39) missense probably damaging 1.00
R3897:Ttc21b UTSW 2 66,065,413 (GRCm39) missense probably benign 0.01
R4561:Ttc21b UTSW 2 66,016,562 (GRCm39) missense probably damaging 1.00
R4671:Ttc21b UTSW 2 66,057,257 (GRCm39) missense possibly damaging 0.66
R5161:Ttc21b UTSW 2 66,059,367 (GRCm39) missense probably damaging 0.98
R5594:Ttc21b UTSW 2 66,066,579 (GRCm39) missense probably benign 0.39
R6210:Ttc21b UTSW 2 66,066,698 (GRCm39) missense probably benign 0.00
R6305:Ttc21b UTSW 2 66,018,614 (GRCm39) missense probably damaging 0.99
R6456:Ttc21b UTSW 2 66,018,675 (GRCm39) missense probably damaging 0.97
R6482:Ttc21b UTSW 2 66,057,244 (GRCm39) missense probably benign 0.12
R6645:Ttc21b UTSW 2 66,066,721 (GRCm39) missense probably benign 0.01
R6800:Ttc21b UTSW 2 66,038,994 (GRCm39) splice site probably null
R6815:Ttc21b UTSW 2 66,057,134 (GRCm39) missense probably benign 0.00
R6959:Ttc21b UTSW 2 66,061,656 (GRCm39) missense probably benign 0.05
R7125:Ttc21b UTSW 2 66,066,670 (GRCm39) missense probably benign 0.00
R7265:Ttc21b UTSW 2 66,040,517 (GRCm39) missense possibly damaging 0.89
R7283:Ttc21b UTSW 2 66,039,062 (GRCm39) missense probably damaging 0.96
R7560:Ttc21b UTSW 2 66,047,548 (GRCm39) missense possibly damaging 0.69
R7561:Ttc21b UTSW 2 66,047,548 (GRCm39) missense possibly damaging 0.69
R7816:Ttc21b UTSW 2 66,077,705 (GRCm39) missense possibly damaging 0.82
R8172:Ttc21b UTSW 2 66,082,500 (GRCm39) missense probably benign 0.01
R8179:Ttc21b UTSW 2 66,031,824 (GRCm39) missense probably benign
R9047:Ttc21b UTSW 2 66,031,596 (GRCm39) missense
R9282:Ttc21b UTSW 2 66,056,349 (GRCm39) missense possibly damaging 0.65
R9336:Ttc21b UTSW 2 66,057,287 (GRCm39) missense probably benign
R9464:Ttc21b UTSW 2 66,053,866 (GRCm39) missense probably damaging 1.00
X0013:Ttc21b UTSW 2 66,056,294 (GRCm39) nonsense probably null
Predicted Primers PCR Primer
(F):5'- GGCAGCCAGGAACTATGTAAAC -3'
(R):5'- GACTGCACTTCTTGTCTAAAGTGG -3'

Sequencing Primer
(F):5'- CCTGGTCTACAAAGTGAGTTCCAG -3'
(R):5'- AAAGTGGTTTGGTTTCTCTTTCACAG -3'
Posted On 2016-07-22