Incidental Mutation 'R5594:Ttc21b'
ID 437679
Institutional Source Beutler Lab
Gene Symbol Ttc21b
Ensembl Gene ENSMUSG00000034848
Gene Name tetratricopeptide repeat domain 21B
Synonyms Thm1, line 158, aln, 2410066K11Rik
MMRRC Submission 043146-MU
Accession Numbers
Essential gene? Essential (E-score: 1.000) question?
Stock # R5594 (G1)
Quality Score 225
Status Validated
Chromosome 2
Chromosomal Location 66014671-66086961 bp(-) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) A to G at 66066579 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Isoleucine to Threonine at position 358 (I358T)
Ref Sequence ENSEMBL: ENSMUSP00000131758 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000102718] [ENSMUST00000125446]
AlphaFold Q0HA38
Predicted Effect probably benign
Transcript: ENSMUST00000102718
AA Change: I358T

PolyPhen 2 Score 0.105 (Sensitivity: 0.93; Specificity: 0.86)
SMART Domains Protein: ENSMUSP00000099779
Gene: ENSMUSG00000034848
AA Change: I358T

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 probably benign
Transcript: ENSMUST00000125446
AA Change: I358T

PolyPhen 2 Score 0.390 (Sensitivity: 0.90; Specificity: 0.89)
SMART Domains Protein: ENSMUSP00000131758
Gene: ENSMUSG00000034848
AA Change: I358T

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
Meta Mutation Damage Score 0.0898 question?
Coding Region Coverage
  • 1x: 99.9%
  • 3x: 99.7%
  • 10x: 98.7%
  • 20x: 96.4%
Validation Efficiency 100% (80/80)
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: 71 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
4930556J24Rik C T 11: 3,888,027 (GRCm39) V120I unknown Het
4931414P19Rik A G 14: 54,822,441 (GRCm39) Y399H probably damaging Het
Abca9 G T 11: 110,035,688 (GRCm39) P644Q probably damaging Het
Acly T C 11: 100,412,946 (GRCm39) probably null Het
Adamts14 A T 10: 61,062,880 (GRCm39) probably null Het
Ankdd1a T C 9: 65,409,523 (GRCm39) N471S probably damaging Het
Ankrd39 C T 1: 36,581,062 (GRCm39) G96R probably damaging Het
Arhgef28 T C 13: 98,076,000 (GRCm39) T1345A probably benign Het
Arhgef40 T A 14: 52,233,614 (GRCm39) L820H probably damaging Het
Atp2b4 A G 1: 133,658,248 (GRCm39) V554A probably damaging Het
Birc7 G A 2: 180,575,129 (GRCm39) probably null Het
Ccdc80 C T 16: 44,936,626 (GRCm39) R684C probably benign Het
Cdc25b C A 2: 131,033,538 (GRCm39) P159Q probably damaging Het
Cdcp3 T A 7: 130,841,252 (GRCm39) D647E probably benign Het
Chek2 G T 5: 111,003,700 (GRCm39) probably null Het
Chil6 C T 3: 106,301,745 (GRCm39) probably null Het
Cr2 A G 1: 194,839,498 (GRCm39) I643T probably damaging Het
Cwf19l2 C A 9: 3,418,773 (GRCm39) Q187K probably benign Het
Cyth4 A G 15: 78,491,275 (GRCm39) probably null Het
Depdc5 A G 5: 33,058,834 (GRCm39) T268A possibly damaging Het
Dnah17 G T 11: 117,934,055 (GRCm39) probably null Het
Dnah3 T C 7: 119,570,844 (GRCm39) Y2210C possibly damaging Het
Elmod3 G A 6: 72,571,799 (GRCm39) probably benign Het
Eogt T A 6: 97,092,996 (GRCm39) T394S probably benign Het
Evi5 A G 5: 107,968,317 (GRCm39) V182A possibly damaging Het
Fbxo30 T C 10: 11,166,223 (GRCm39) I315T probably benign Het
Fibcd1 T C 2: 31,728,629 (GRCm39) N76S probably damaging Het
Gcc2 G T 10: 58,123,064 (GRCm39) R1190M probably damaging Het
Gfm2 T C 13: 97,301,546 (GRCm39) S450P probably damaging Het
Glg1 G A 8: 111,914,513 (GRCm39) R424C probably damaging Het
Gm11543 T A 11: 94,719,380 (GRCm39) noncoding transcript Het
Hhip G T 8: 80,723,492 (GRCm39) D387E probably damaging Het
Hif1a T A 12: 73,984,566 (GRCm39) Y46* probably null Het
Hivep3 G T 4: 119,980,245 (GRCm39) probably null Het
Kif13a T A 13: 46,906,338 (GRCm39) E535V probably damaging Het
Lrch3 T C 16: 32,734,554 (GRCm39) Y15H probably damaging Het
Lyst T G 13: 13,917,918 (GRCm39) I3326S probably damaging Het
Lyst T A 13: 13,933,982 (GRCm39) V3560E probably benign Het
Megf11 T C 9: 64,593,755 (GRCm39) F613L probably damaging Het
Misp G A 10: 79,662,977 (GRCm39) V465M probably damaging Het
Mplkipl1 C T 19: 61,164,364 (GRCm39) G24R unknown Het
Ms4a6c T A 19: 11,455,537 (GRCm39) D115E probably benign Het
Msh6 A G 17: 88,293,497 (GRCm39) T751A probably benign Het
Ntrk3 T A 7: 78,101,647 (GRCm39) T429S probably benign Het
Oplah A C 15: 76,180,837 (GRCm39) *1289G probably null Het
Or14j7 T A 17: 38,234,502 (GRCm39) M15K probably benign Het
Or7e166 T C 9: 19,624,302 (GRCm39) Y60H probably damaging Het
Otx1 C A 11: 21,947,037 (GRCm39) A91S probably damaging Het
Pcdhga6 A T 18: 37,841,581 (GRCm39) T434S probably benign Het
Pign A G 1: 105,574,594 (GRCm39) probably benign Het
Poteg A T 8: 27,937,996 (GRCm39) I51F probably benign Het
Prrc2c C A 1: 162,526,600 (GRCm39) V204F unknown Het
Rhbdd3 T C 11: 5,055,710 (GRCm39) S325P probably damaging Het
Rit1 T A 3: 88,636,444 (GRCm39) L116Q probably damaging Het
Rpl22 T A 4: 152,410,259 (GRCm39) probably benign Het
Rttn A G 18: 89,108,560 (GRCm39) E1588G possibly damaging Het
Sardh A G 2: 27,110,735 (GRCm39) F577S probably damaging Het
Slc12a7 T A 13: 73,933,258 (GRCm39) D105E probably benign Het
Slc22a23 T A 13: 34,489,240 (GRCm39) D215V probably damaging Het
Slc4a8 C A 15: 100,693,768 (GRCm39) P438T probably damaging Het
Sntb1 C G 15: 55,506,191 (GRCm39) G461R probably damaging Het
Stk19 C T 17: 35,039,538 (GRCm39) probably benign Het
Stx5a T C 19: 8,725,829 (GRCm39) I143T probably damaging Het
Tep1 T C 14: 51,067,339 (GRCm39) H2232R possibly damaging Het
Trmt9b A G 8: 36,979,452 (GRCm39) T352A probably benign Het
Tuba8 A G 6: 121,202,863 (GRCm39) D392G possibly damaging Het
Vmn1r1 G A 1: 181,984,972 (GRCm39) P231L probably damaging Het
Zfp330 A G 8: 83,493,941 (GRCm39) W107R probably damaging Het
Zfp715 T A 7: 42,949,116 (GRCm39) Q281H possibly damaging Het
Zfp9 T C 6: 118,442,000 (GRCm39) T221A probably damaging Het
Zgpat T C 2: 181,007,420 (GRCm39) probably benign 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
R5274:Ttc21b UTSW 2 66,066,627 (GRCm39) missense possibly damaging 0.89
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'- ACAGGCAGCCAGGAACTATG -3'
(R):5'- CGTAATCAACTCATTCTCCAGAAAG -3'

Sequencing Primer
(F):5'- CCTGGTCTACAAAGTGAGTTCCAG -3'
(R):5'- CTCCAGAAAGTTCAAAGTTTCCTAG -3'
Posted On 2016-10-26