Incidental Mutation 'R5161:Ttc21b'
ID 396980
Institutional Source Beutler Lab
Gene Symbol Ttc21b
Ensembl Gene ENSMUSG00000034848
Gene Name tetratricopeptide repeat domain 21B
Synonyms Thm1, line 158, aln, 2410066K11Rik
MMRRC Submission 042743-MU
Accession Numbers
Essential gene? Essential (E-score: 1.000) question?
Stock # R5161 (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 66059367 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Cysteine to Arginine at position 545 (C545R)
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: C545R

PolyPhen 2 Score 0.941 (Sensitivity: 0.80; Specificity: 0.94)
SMART Domains Protein: ENSMUSP00000099779
Gene: ENSMUSG00000034848
AA Change: C545R

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 damaging
Transcript: ENSMUST00000125446
AA Change: C545R

PolyPhen 2 Score 0.977 (Sensitivity: 0.76; Specificity: 0.96)
SMART Domains Protein: ENSMUSP00000131758
Gene: ENSMUSG00000034848
AA Change: C545R

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 0.8522 question?
Coding Region Coverage
  • 1x: 99.3%
  • 3x: 98.6%
  • 10x: 97.3%
  • 20x: 95.2%
Validation Efficiency 98% (56/57)
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: 55 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
0610040J01Rik G T 5: 64,055,344 (GRCm39) E27* probably null Het
4930407I10Rik G T 15: 81,947,542 (GRCm39) E480* probably null Het
Acad11 T C 9: 104,001,227 (GRCm39) I591T probably benign Het
Acsbg3 A T 17: 57,189,888 (GRCm39) I305F possibly damaging Het
Adamts13 G A 2: 26,883,020 (GRCm39) E857K probably benign Het
Atf2 A C 2: 73,660,134 (GRCm39) probably null Het
Cass4 C A 2: 172,274,244 (GRCm39) A675E probably damaging Het
Coa8 C A 12: 111,689,208 (GRCm39) Q97K possibly damaging Het
Ctsd A T 7: 141,930,881 (GRCm39) L283Q probably damaging Het
Ddrgk1 A T 2: 130,505,296 (GRCm39) M1K probably null Het
Dipk1b C T 2: 26,526,260 (GRCm39) T398M possibly damaging Het
Dock1 G A 7: 134,335,791 (GRCm39) A62T possibly damaging Het
Ehmt1 T C 2: 24,748,207 (GRCm39) D407G possibly damaging Het
Eif1ad17 T A 12: 87,978,887 (GRCm39) D90E possibly damaging Het
Eml6 A G 11: 29,974,467 (GRCm39) V37A probably damaging Het
Fam20a C T 11: 109,564,196 (GRCm39) R519Q probably benign Het
Fat1 A G 8: 45,405,549 (GRCm39) T767A probably benign Het
Fbxl8 A T 8: 105,995,538 (GRCm39) H350L possibly damaging Het
Gm10226 A C 17: 21,910,834 (GRCm39) Q23P possibly damaging Het
Gm38706 A T 6: 130,459,868 (GRCm39) noncoding transcript Het
Gpatch2l G T 12: 86,313,950 (GRCm39) R362L probably benign Het
Hyal5 A T 6: 24,891,602 (GRCm39) D472V probably benign Het
Ighv5-9-1 T C 12: 113,699,777 (GRCm39) S102G possibly damaging Het
Itpripl1 A C 2: 126,983,777 (GRCm39) L115R probably damaging Het
Itsn1 G A 16: 91,705,726 (GRCm39) C169Y possibly damaging Het
Krt88 T A 15: 101,348,349 (GRCm39) C12S probably benign Het
Macroh2a1 T C 13: 56,237,594 (GRCm39) D222G probably benign Het
Muc4 G A 16: 32,582,895 (GRCm39) V2557M probably damaging Het
Myh7b G C 2: 155,474,293 (GRCm39) R1669S possibly damaging Het
Nbeal2 G T 9: 110,458,936 (GRCm39) Q1996K probably benign Het
Obscn T C 11: 58,919,430 (GRCm39) E6205G probably damaging Het
Obscn A G 11: 58,955,136 (GRCm39) Y3926H possibly damaging Het
Or14a259 T C 7: 86,013,546 (GRCm39) probably null Het
Or5an10 A T 19: 12,276,153 (GRCm39) S114R probably damaging Het
P2ry2 A T 7: 100,648,136 (GRCm39) Y56* probably null Het
Pate10 T A 9: 35,652,884 (GRCm39) L42* probably null Het
Pde1a T C 2: 79,708,488 (GRCm39) N242S probably null Het
Pik3cg C T 12: 32,254,977 (GRCm39) E337K possibly damaging Het
Plxna2 A G 1: 194,433,712 (GRCm39) N587S probably benign Het
Pmpca T C 2: 26,285,183 (GRCm39) probably null Het
Ptpn4 C T 1: 119,635,593 (GRCm39) W370* probably null Het
Qki A T 17: 10,434,419 (GRCm39) probably null Het
Rapgef3 A G 15: 97,655,606 (GRCm39) V427A probably damaging Het
Rbbp8 T G 18: 11,855,171 (GRCm39) D465E probably damaging Het
Scn2a A G 2: 65,594,935 (GRCm39) K1928R probably benign Het
Slc5a5 A C 8: 71,341,492 (GRCm39) C346G probably damaging Het
Spata2l A G 8: 123,962,288 (GRCm39) L91P probably damaging Het
Syt3 C A 7: 44,045,439 (GRCm39) H560N possibly damaging Het
Timm23 G A 14: 31,915,882 (GRCm39) P63L probably damaging Het
Tmem191 T C 16: 17,094,743 (GRCm39) S108P possibly damaging Het
Ttc23l G T 15: 10,551,636 (GRCm39) T30K possibly damaging Het
Usp17ld A T 7: 102,899,579 (GRCm39) L451* probably null Het
Vmn1r15 T C 6: 57,235,497 (GRCm39) Y122H probably benign Het
Vxn G T 1: 9,692,902 (GRCm39) G145* probably null Het
Zfp1002 A T 2: 150,097,135 (GRCm39) I98K probably 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
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'- CCCTCTGCCCATGAAATTCG -3'
(R):5'- TAGGAATGGAGGCCAGGTTC -3'

Sequencing Primer
(F):5'- GCCCATGAAATTCGACATTGTGG -3'
(R):5'- TTCACGGACAGAGACGTTAAAC -3'
Posted On 2016-06-21