Incidental Mutation 'R6620:Ttc8'
ID 528140
Institutional Source Beutler Lab
Gene Symbol Ttc8
Ensembl Gene ENSMUSG00000021013
Gene Name tetratricopeptide repeat domain 8
Synonyms BBS8, 0610012F22Rik
MMRRC Submission 044743-MU
Accession Numbers
Essential gene? Possibly non essential (E-score: 0.393) question?
Stock # R6620 (G1)
Quality Score 225.009
Status Validated
Chromosome 12
Chromosomal Location 98886833-98949497 bp(+) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) T to C at 98923579 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Tyrosine to Histidine at position 212 (Y212H)
Ref Sequence ENSEMBL: ENSMUSP00000082190 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000079146] [ENSMUST00000085109] [ENSMUST00000132878]
AlphaFold Q8VD72
Predicted Effect possibly damaging
Transcript: ENSMUST00000079146
AA Change: Y222H

PolyPhen 2 Score 0.928 (Sensitivity: 0.81; Specificity: 0.94)
SMART Domains Protein: ENSMUSP00000078148
Gene: ENSMUSG00000021013
AA Change: Y222H

DomainStartEndE-ValueType
Blast:TPR 4 37 5e-12 BLAST
TPR 225 258 2.35e-1 SMART
TPR 292 325 9.68e-3 SMART
Blast:TPR 326 359 3e-14 BLAST
TPR 360 393 2.26e-3 SMART
TPR 397 430 1.91e-1 SMART
TPR 431 464 1.81e-2 SMART
Blast:TPR 465 498 7e-14 BLAST
Predicted Effect possibly damaging
Transcript: ENSMUST00000085109
AA Change: Y212H

PolyPhen 2 Score 0.952 (Sensitivity: 0.79; Specificity: 0.95)
SMART Domains Protein: ENSMUSP00000082190
Gene: ENSMUSG00000021013
AA Change: Y212H

DomainStartEndE-ValueType
Blast:TPR 4 37 4e-12 BLAST
TPR 215 248 2.35e-1 SMART
TPR 282 315 9.68e-3 SMART
Blast:TPR 316 349 3e-14 BLAST
TPR 350 383 2.26e-3 SMART
TPR 387 420 1.91e-1 SMART
TPR 421 454 1.81e-2 SMART
Blast:TPR 455 488 7e-14 BLAST
Predicted Effect noncoding transcript
Transcript: ENSMUST00000124514
Predicted Effect possibly damaging
Transcript: ENSMUST00000132878
AA Change: Y162H

PolyPhen 2 Score 0.904 (Sensitivity: 0.82; Specificity: 0.94)
SMART Domains Protein: ENSMUSP00000115828
Gene: ENSMUSG00000021013
AA Change: Y162H

DomainStartEndE-ValueType
SCOP:d1a17__ 128 206 2e-5 SMART
Blast:TPR 165 198 8e-18 BLAST
Predicted Effect noncoding transcript
Transcript: ENSMUST00000223356
Meta Mutation Damage Score 0.0612 question?
Coding Region Coverage
  • 1x: 99.9%
  • 3x: 99.6%
  • 10x: 97.9%
  • 20x: 93.7%
Validation Efficiency 100% (35/35)
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] This gene encodes a protein that has been directly linked to Bardet-Biedl syndrome. The primary features of this syndrome include retinal dystrophy, obesity, polydactyly, renal abnormalities and learning disabilities. Experimentation in non-human eukaryotes suggests that this gene is expressed in ciliated cells and that it is involved in the formation of cilia. A mutation in this gene has also been implicated in nonsyndromic retinitis pigmentosa. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jan 2014]
PHENOTYPE: Mice homozygous for a null mutation display partial postnatal lethality with slow postnatal weight gain, age related obesity, impaired olfation, loss of cilia from the olfactory epithelium, impaired targeting of olfactory sensory neuron axons, retinal degeneration, and mild renal tubule dilation. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 34 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Acad9 G T 3: 36,120,294 (GRCm39) A13S possibly damaging Het
Ahnak G A 19: 8,992,674 (GRCm39) E4653K possibly damaging Het
Apc2 C T 10: 80,149,401 (GRCm39) P1485L probably damaging Het
Atp9b A T 18: 80,851,902 (GRCm39) L397* probably null Het
Ces1e C A 8: 93,950,546 (GRCm39) K79N probably damaging Het
Col12a1 A C 9: 79,527,331 (GRCm39) I2666M probably damaging Het
Dock10 T A 1: 80,570,355 (GRCm39) N361I probably benign Het
Dock3 C A 9: 106,815,125 (GRCm39) M1247I probably benign Het
Evi5l C A 8: 4,256,674 (GRCm39) A720E possibly damaging Het
F5 T C 1: 164,014,375 (GRCm39) F549L probably damaging Het
Gpx2 T C 12: 76,839,674 (GRCm39) N108S possibly damaging Het
Ifnar1 T C 16: 91,293,155 (GRCm39) probably null Het
Kcnj16 T C 11: 110,915,473 (GRCm39) V45A probably damaging Het
Kng1 T C 16: 22,900,232 (GRCm39) L402P possibly damaging Het
Lct C A 1: 128,222,809 (GRCm39) probably null Het
Lmo7 G T 14: 102,112,888 (GRCm39) K106N probably benign Het
Map3k13 A T 16: 21,711,061 (GRCm39) I115F possibly damaging Het
Mapre2 T C 18: 23,991,002 (GRCm39) V123A probably benign Het
Mtfr1l A G 4: 134,256,394 (GRCm39) probably null Het
Or10g6 T A 9: 39,934,225 (GRCm39) C179S probably damaging Het
Or4c99 A G 2: 88,356,743 (GRCm39) Y272C probably damaging Het
Pbxip1 G A 3: 89,355,133 (GRCm39) V551I probably benign Het
Pcdha8 T C 18: 37,125,581 (GRCm39) I21T probably benign Het
Plekha5 G A 6: 140,518,601 (GRCm39) R296Q probably damaging Het
Psme2 A C 14: 55,825,928 (GRCm39) D126E probably damaging Het
Psmg2 T C 18: 67,774,807 (GRCm39) probably null Het
Ranbp2 A T 10: 58,291,629 (GRCm39) probably null Het
Sdr39u1 C T 14: 56,135,172 (GRCm39) R257H probably damaging Het
Sorbs2 G T 8: 46,249,213 (GRCm39) R802S probably damaging Het
Spata31 A G 13: 65,067,571 (GRCm39) N78D possibly damaging Het
Spatc1l A G 10: 76,405,756 (GRCm39) D320G probably damaging Het
Vmn2r112 G A 17: 22,822,082 (GRCm39) M253I probably benign Het
Zbed5 A G 5: 129,932,130 (GRCm39) E693G possibly damaging Het
Zfp808 T A 13: 62,320,638 (GRCm39) N622K probably benign Het
Other mutations in Ttc8
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00925:Ttc8 APN 12 98,942,277 (GRCm39) missense probably damaging 0.96
IGL01139:Ttc8 APN 12 98,930,804 (GRCm39) nonsense probably null
IGL02179:Ttc8 APN 12 98,930,796 (GRCm39) missense possibly damaging 0.87
IGL02715:Ttc8 APN 12 98,910,179 (GRCm39) splice site probably benign
IGL02958:Ttc8 APN 12 98,930,803 (GRCm39) missense probably benign 0.03
IGL03249:Ttc8 APN 12 98,910,080 (GRCm39) splice site probably benign
P0035:Ttc8 UTSW 12 98,942,675 (GRCm39) splice site probably benign
R0606:Ttc8 UTSW 12 98,909,718 (GRCm39) splice site probably benign
R1005:Ttc8 UTSW 12 98,903,403 (GRCm39) missense probably benign 0.11
R1584:Ttc8 UTSW 12 98,887,023 (GRCm39) missense probably benign 0.01
R1628:Ttc8 UTSW 12 98,948,780 (GRCm39) missense probably benign 0.07
R1706:Ttc8 UTSW 12 98,910,142 (GRCm39) missense probably benign 0.02
R4585:Ttc8 UTSW 12 98,948,789 (GRCm39) missense probably benign
R4720:Ttc8 UTSW 12 98,946,068 (GRCm39) missense possibly damaging 0.94
R4879:Ttc8 UTSW 12 98,908,562 (GRCm39) missense possibly damaging 0.55
R5110:Ttc8 UTSW 12 98,908,562 (GRCm39) missense probably benign 0.25
R6272:Ttc8 UTSW 12 98,948,753 (GRCm39) missense possibly damaging 0.63
R6465:Ttc8 UTSW 12 98,930,829 (GRCm39) missense probably damaging 1.00
R6708:Ttc8 UTSW 12 98,909,791 (GRCm39) missense probably damaging 0.99
R6772:Ttc8 UTSW 12 98,909,848 (GRCm39) missense probably damaging 1.00
R6901:Ttc8 UTSW 12 98,927,735 (GRCm39) missense probably damaging 1.00
R7060:Ttc8 UTSW 12 98,909,726 (GRCm39) missense probably benign
R7117:Ttc8 UTSW 12 98,942,761 (GRCm39) missense possibly damaging 0.63
R7174:Ttc8 UTSW 12 98,940,960 (GRCm39) missense possibly damaging 0.79
R7385:Ttc8 UTSW 12 98,908,547 (GRCm39) missense possibly damaging 0.78
R7447:Ttc8 UTSW 12 98,910,131 (GRCm39) missense probably damaging 0.97
R7589:Ttc8 UTSW 12 98,942,696 (GRCm39) missense probably damaging 1.00
R8517:Ttc8 UTSW 12 98,909,594 (GRCm39) missense probably benign
R9397:Ttc8 UTSW 12 98,942,692 (GRCm39) nonsense probably null
R9629:Ttc8 UTSW 12 98,886,965 (GRCm39) missense possibly damaging 0.92
Predicted Primers PCR Primer
(F):5'- CATCTGGAAACTTGGGCAAC -3'
(R):5'- TCAGCACTGTCACGCGATTG -3'

Sequencing Primer
(F):5'- CTTGGGCAACATGAGTTTCTATC -3'
(R):5'- CTGTCACGCGATTGTTCAGAAACTG -3'
Posted On 2018-07-24