Incidental Mutation 'R1617:Ttc21b'
ID 174328
Institutional Source Beutler Lab
Gene Symbol Ttc21b
Ensembl Gene ENSMUSG00000034848
Gene Name tetratricopeptide repeat domain 21B
Synonyms Thm1, line 158, aln, 2410066K11Rik
MMRRC Submission 039654-MU
Accession Numbers
Essential gene? Essential (E-score: 1.000) question?
Stock # R1617 (G1)
Quality Score 225
Status Validated
Chromosome 2
Chromosomal Location 66014671-66086961 bp(-) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) G to T at 66056379 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Threonine to Lysine at position 669 (T669K)
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: T669K

PolyPhen 2 Score 0.221 (Sensitivity: 0.91; Specificity: 0.88)
SMART Domains Protein: ENSMUSP00000099779
Gene: ENSMUSG00000034848
AA Change: T669K

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: T669K

PolyPhen 2 Score 0.221 (Sensitivity: 0.91; Specificity: 0.88)
SMART Domains Protein: ENSMUSP00000131758
Gene: ENSMUSG00000034848
AA Change: T669K

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: ENSMUST00000169968
Meta Mutation Damage Score 0.0898 question?
Coding Region Coverage
  • 1x: 99.1%
  • 3x: 98.2%
  • 10x: 95.8%
  • 20x: 91.0%
Validation Efficiency 98% (83/85)
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: 73 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
4833420G17Rik T A 13: 119,603,473 (GRCm39) I91K probably damaging Het
AAdacl4fm3 T G 4: 144,441,961 (GRCm39) T97P probably damaging Het
Adamts16 T A 13: 70,946,154 (GRCm39) M254L probably benign Het
Adgre5 T C 8: 84,456,806 (GRCm39) I192V possibly damaging Het
Akr1c21 G A 13: 4,626,351 (GRCm39) probably null Het
Amz2 A G 11: 109,324,850 (GRCm39) T245A probably benign Het
Aqp7 A C 4: 41,036,109 (GRCm39) M43R probably null Het
Arid3c G A 4: 41,725,103 (GRCm39) P315S probably damaging Het
Birc2 A T 9: 7,826,952 (GRCm39) Y345N possibly damaging Het
Blnk T C 19: 40,950,807 (GRCm39) T115A probably benign Het
Col5a1 T C 2: 27,842,393 (GRCm39) S423P unknown Het
Corin A T 5: 72,661,295 (GRCm39) F66Y possibly damaging Het
Cpd A T 11: 76,737,495 (GRCm39) W100R probably damaging Het
Cpsf1 A T 15: 76,486,570 (GRCm39) Y296* probably null Het
Cyp2d34 T C 15: 82,505,046 (GRCm39) T5A probably benign Het
Dhrs7c G T 11: 67,705,903 (GRCm39) V219L possibly damaging Het
Dnah3 T C 7: 119,689,169 (GRCm39) M82V probably benign Het
Dnah9 A G 11: 65,786,747 (GRCm39) S3629P probably damaging Het
Fbrs T C 7: 127,086,883 (GRCm39) L33P probably damaging Het
Fhip1b A G 7: 105,034,269 (GRCm39) L454P probably damaging Het
Galnt11 T A 5: 25,463,891 (GRCm39) S388T probably damaging Het
Glmp A G 3: 88,235,426 (GRCm39) probably benign Het
Gm9894 A G 13: 67,920,845 (GRCm39) noncoding transcript Het
Grik3 A G 4: 125,584,985 (GRCm39) M618V probably benign Het
Hmcn1 T C 1: 150,620,778 (GRCm39) D1144G probably damaging Het
Hnrnpa2b1 T C 6: 51,443,378 (GRCm39) K161R possibly damaging Het
Kmt2c T C 5: 25,580,925 (GRCm39) I523V probably benign Het
Lmln C T 16: 32,937,500 (GRCm39) P622S probably damaging Het
Lmtk2 A G 5: 144,110,680 (GRCm39) T467A probably damaging Het
Map1s T A 8: 71,366,095 (GRCm39) N333K probably damaging Het
Mgat4d C A 8: 84,092,340 (GRCm39) A242D probably damaging Het
Muc5b T A 7: 141,417,261 (GRCm39) Y3402* probably null Het
Myo3b G T 2: 70,111,562 (GRCm39) A922S probably benign Het
Nphs1 T C 7: 30,181,956 (GRCm39) V1183A probably benign Het
Nup160 T A 2: 90,509,843 (GRCm39) C31S probably benign Het
Or4c58 T C 2: 89,674,598 (GRCm39) T240A probably benign Het
Or8k25 A T 2: 86,244,035 (GRCm39) Y120* probably null Het
Pcdhb5 T G 18: 37,454,455 (GRCm39) Y278* probably null Het
Pkhd1 T A 1: 20,268,274 (GRCm39) E3368V possibly damaging Het
Pla2g6 A G 15: 79,173,341 (GRCm39) M676T probably benign Het
Plcb1 A T 2: 135,179,361 (GRCm39) N590Y probably damaging Het
Prr12 G A 7: 44,699,018 (GRCm39) probably benign Het
Psat1 A G 19: 15,901,666 (GRCm39) probably null Het
Ptpn9 T G 9: 56,934,692 (GRCm39) I152S possibly damaging Het
Ric8b T A 10: 84,783,475 (GRCm39) F111Y probably damaging Het
Slc44a3 G A 3: 121,254,914 (GRCm39) A568V probably benign Het
Smarcd3 T G 5: 24,800,192 (GRCm39) R213S probably damaging Het
Snx13 T C 12: 35,136,895 (GRCm39) Y119H probably damaging Het
Socs2 C A 10: 95,248,943 (GRCm39) E57* probably null Het
Spred1 C T 2: 117,005,828 (GRCm39) P197S probably benign Het
Srek1 G T 13: 103,880,112 (GRCm39) P482Q unknown Het
Tapbp A G 17: 34,139,405 (GRCm39) T134A probably benign Het
Tarbp1 T C 8: 127,171,007 (GRCm39) I998V possibly damaging Het
Tbcel G T 9: 42,372,589 (GRCm39) probably benign Het
Tec A G 5: 72,939,448 (GRCm39) F189S probably damaging Het
Tmprss11g A T 5: 86,647,422 (GRCm39) Y39N probably damaging Het
Tmtc1 A G 6: 148,256,902 (GRCm39) probably benign Het
Trpa1 A G 1: 14,943,899 (GRCm39) I1070T probably damaging Het
Trpm2 T A 10: 77,771,709 (GRCm39) probably null Het
Ttll4 G A 1: 74,718,560 (GRCm39) R137H probably benign Het
Ubqln3 G T 7: 103,792,067 (GRCm39) L8I possibly damaging Het
Ung C A 5: 114,269,415 (GRCm39) N42K probably benign Het
Upp1 T C 11: 9,084,865 (GRCm39) S195P probably damaging Het
Urb1 T C 16: 90,557,340 (GRCm39) E1762G possibly damaging Het
Utp11 T C 4: 124,579,904 (GRCm39) K35E probably damaging Het
Vav3 A T 3: 109,418,294 (GRCm39) K305I probably damaging Het
Vmn1r197 A G 13: 22,512,498 (GRCm39) I140V possibly damaging Het
Vmn2r-ps158 A G 7: 42,673,503 (GRCm39) E187G probably benign Het
Zfc3h1 A G 10: 115,226,827 (GRCm39) T295A probably benign Het
Zfp268 A T 4: 145,350,877 (GRCm39) probably benign Het
Zfp46 T C 4: 136,017,823 (GRCm39) L219P probably damaging Het
Zfp493 G A 13: 67,931,999 (GRCm39) V33M probably damaging Het
Zfp92 T C X: 72,463,466 (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
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
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'- GCAGAAGGAAGATGACCATTTCCAGAC -3'
(R):5'- TCGGGTAACTCATCGCCTATTTTGAAC -3'

Sequencing Primer
(F):5'- ACCATGCTGGTTAATTTCAGGAG -3'
(R):5'- CAGTCTTTAATTTTCGCGTTACAG -3'
Posted On 2014-04-24