Incidental Mutation 'R2231:Coch'
ID 240048
Institutional Source Beutler Lab
Gene Symbol Coch
Ensembl Gene ENSMUSG00000020953
Gene Name cochlin
Synonyms Coch-5B2, D12H14S564E
MMRRC Submission 040232-MU
Accession Numbers
Essential gene? Non essential (E-score: 0.000) question?
Stock # R2231 (G1)
Quality Score 225
Status Not validated
Chromosome 12
Chromosomal Location 51640156-51652558 bp(+) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) G to A at 51649648 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Valine to Isoleucine at position 320 (V320I)
Ref Sequence ENSEMBL: ENSMUSP00000128127 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000085412] [ENSMUST00000164782]
AlphaFold Q62507
Predicted Effect probably benign
Transcript: ENSMUST00000085412
AA Change: V320I

PolyPhen 2 Score 0.000 (Sensitivity: 1.00; Specificity: 0.00)
SMART Domains Protein: ENSMUSP00000082533
Gene: ENSMUSG00000020953
AA Change: V320I

DomainStartEndE-ValueType
signal peptide 1 26 N/A INTRINSIC
LCCL 32 114 3.64e-47 SMART
VWA 165 337 2.06e-33 SMART
VWA 367 540 6.43e-44 SMART
Predicted Effect probably benign
Transcript: ENSMUST00000164782
AA Change: V320I

PolyPhen 2 Score 0.000 (Sensitivity: 1.00; Specificity: 0.00)
SMART Domains Protein: ENSMUSP00000128127
Gene: ENSMUSG00000020953
AA Change: V320I

DomainStartEndE-ValueType
signal peptide 1 26 N/A INTRINSIC
LCCL 32 114 3.64e-47 SMART
VWA 165 337 2.06e-33 SMART
VWA 367 540 6.43e-44 SMART
Coding Region Coverage
  • 1x: 99.2%
  • 3x: 98.5%
  • 10x: 97.2%
  • 20x: 94.7%
Validation Efficiency
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] The protein encoded by this gene is highly conserved in human, mouse, and chicken, showing 94% and 79% amino acid identity of human to mouse and chicken sequences, respectively. Hybridization to this gene was detected in spindle-shaped cells located along nerve fibers between the auditory ganglion and sensory epithelium. These cells accompany neurites at the habenula perforata, the opening through which neurites extend to innervate hair cells. This and the pattern of expression of this gene in chicken inner ear paralleled the histologic findings of acidophilic deposits, consistent with mucopolysaccharide ground substance, in temporal bones from DFNA9 (autosomal dominant nonsyndromic sensorineural deafness 9) patients. Mutations that cause DFNA9 have been reported in this gene. Alternative splicing results in multiple transcript variants encoding the same protein. Additional splice variants encoding distinct isoforms have been described but their biological validities have not been demonstrated. [provided by RefSeq, Oct 2008]
PHENOTYPE: Homozygotes for a point mutation have vestibular and hearing dysfunctions that worsen with age. Homozyogtes for a null allele have no abnormal phenotype. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 43 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Actr1b G A 1: 36,739,440 (GRCm39) R336W probably damaging Het
Alkbh6 G A 7: 30,012,015 (GRCm39) probably null Het
Ankrd63 A G 2: 118,533,846 (GRCm39) probably benign Het
Arsa T C 15: 89,359,925 (GRCm39) M1V probably null Het
Cblb T A 16: 52,014,635 (GRCm39) S895T probably benign Het
Cdk8 A T 5: 146,168,414 (GRCm39) probably benign Het
Cyp2c68 T A 19: 39,687,804 (GRCm39) S398C probably benign Het
Cyp2e1 T C 7: 140,344,827 (GRCm39) S98P probably damaging Het
Dnah5 G A 15: 28,408,563 (GRCm39) probably null Het
Eif2b5 T C 16: 20,323,520 (GRCm39) Y424H probably benign Het
Enoph1 C T 5: 100,188,136 (GRCm39) T20I probably damaging Het
Entpd7 T C 19: 43,710,255 (GRCm39) V304A probably benign Het
Fam227a T A 15: 79,499,582 (GRCm39) Y591F possibly damaging Het
Gal3st1 T C 11: 3,948,282 (GRCm39) I163T probably benign Het
Kif21a G A 15: 90,869,565 (GRCm39) Q429* probably null Het
L1cam T A X: 72,904,947 (GRCm39) N503I possibly damaging Het
Myl3 T C 9: 110,596,979 (GRCm39) L113P probably damaging Het
Nup153 A G 13: 46,863,103 (GRCm39) probably null Het
Oaz3 T C 3: 94,341,846 (GRCm39) T130A probably benign Het
Or4c3d A T 2: 89,882,569 (GRCm39) F33Y probably benign Het
Or5b12b A G 19: 12,861,313 (GRCm39) I23V probably benign Het
Pacs2 G A 12: 113,026,987 (GRCm39) D605N probably damaging Het
Pdk3 G T X: 92,857,604 (GRCm39) N59K probably damaging Het
Piezo2 A T 18: 63,278,143 (GRCm39) C254S probably damaging Het
Plekhd1 T C 12: 80,768,725 (GRCm39) F403L possibly damaging Het
Pou5f1 A G 17: 35,820,959 (GRCm39) T134A probably benign Het
Ppp3r1 G A 11: 17,143,115 (GRCm39) G68R probably damaging Het
Prr5 T C 15: 84,586,981 (GRCm39) S244P probably benign Het
Sacs A G 14: 61,443,378 (GRCm39) probably null Het
Sbno1 A T 5: 124,543,767 (GRCm39) D257E probably damaging Het
Scn10a T C 9: 119,462,916 (GRCm39) E1040G possibly damaging Het
Sgce T C 6: 4,730,066 (GRCm39) K53E probably benign Het
Slc6a11 A G 6: 114,171,590 (GRCm39) T254A probably damaging Het
Spag1 A G 15: 36,191,313 (GRCm39) Y180C probably benign Het
Ssna1 G T 2: 25,162,019 (GRCm39) N58K possibly damaging Het
Tbx3 C A 5: 119,815,589 (GRCm39) N296K probably damaging Het
Tcerg1 A G 18: 42,657,309 (GRCm39) T264A unknown Het
Trdmt1 A T 2: 13,530,436 (GRCm39) F82I probably damaging Het
Ttn A T 2: 76,774,497 (GRCm39) F2136L probably damaging Het
Usb1 T G 8: 96,070,674 (GRCm39) L200R probably damaging Het
Usp33 C T 3: 152,079,023 (GRCm39) A425V probably benign Het
Zfp92 G T X: 72,466,358 (GRCm39) L450F possibly damaging Het
Zw10 C T 9: 48,975,421 (GRCm39) T282M possibly damaging Het
Other mutations in Coch
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL01514:Coch APN 12 51,650,136 (GRCm39) missense probably damaging 1.00
IGL01803:Coch APN 12 51,650,082 (GRCm39) missense probably benign 0.15
IGL02613:Coch APN 12 51,642,132 (GRCm39) missense possibly damaging 0.76
IGL02697:Coch APN 12 51,643,821 (GRCm39) missense probably benign 0.00
IGL03351:Coch APN 12 51,649,989 (GRCm39) missense probably benign 0.05
R0732:Coch UTSW 12 51,642,155 (GRCm39) missense probably damaging 1.00
R1485:Coch UTSW 12 51,645,072 (GRCm39) missense probably damaging 1.00
R1757:Coch UTSW 12 51,649,631 (GRCm39) missense probably damaging 1.00
R2073:Coch UTSW 12 51,649,472 (GRCm39) missense probably benign 0.00
R2440:Coch UTSW 12 51,643,345 (GRCm39) missense probably damaging 0.99
R3104:Coch UTSW 12 51,650,204 (GRCm39) missense probably benign
R3623:Coch UTSW 12 51,649,609 (GRCm39) missense probably benign 0.06
R3624:Coch UTSW 12 51,649,609 (GRCm39) missense probably benign 0.06
R3932:Coch UTSW 12 51,650,121 (GRCm39) missense probably damaging 1.00
R3933:Coch UTSW 12 51,650,121 (GRCm39) missense probably damaging 1.00
R3945:Coch UTSW 12 51,648,595 (GRCm39) critical splice acceptor site probably null
R3946:Coch UTSW 12 51,648,595 (GRCm39) critical splice acceptor site probably null
R4423:Coch UTSW 12 51,644,932 (GRCm39) splice site probably null
R4660:Coch UTSW 12 51,642,268 (GRCm39) missense probably benign 0.21
R4732:Coch UTSW 12 51,651,802 (GRCm39) missense probably benign 0.28
R4733:Coch UTSW 12 51,651,802 (GRCm39) missense probably benign 0.28
R4844:Coch UTSW 12 51,649,477 (GRCm39) missense probably damaging 0.98
R4997:Coch UTSW 12 51,649,964 (GRCm39) splice site probably null
R5152:Coch UTSW 12 51,642,225 (GRCm39) missense probably benign 0.00
R5173:Coch UTSW 12 51,643,290 (GRCm39) nonsense probably null
R6134:Coch UTSW 12 51,649,536 (GRCm39) missense probably damaging 1.00
R6481:Coch UTSW 12 51,644,956 (GRCm39) missense probably damaging 1.00
R6497:Coch UTSW 12 51,649,504 (GRCm39) missense probably benign 0.06
R6714:Coch UTSW 12 51,649,520 (GRCm39) missense probably damaging 1.00
R6896:Coch UTSW 12 51,649,652 (GRCm39) missense possibly damaging 0.62
R7242:Coch UTSW 12 51,640,344 (GRCm39) start gained probably benign
R7463:Coch UTSW 12 51,640,408 (GRCm39) start codon destroyed probably null 0.02
R7595:Coch UTSW 12 51,645,016 (GRCm39) missense probably damaging 1.00
R7938:Coch UTSW 12 51,643,366 (GRCm39) splice site probably null
R8047:Coch UTSW 12 51,650,496 (GRCm39) critical splice donor site probably null
R8085:Coch UTSW 12 51,650,031 (GRCm39) missense possibly damaging 0.64
R9052:Coch UTSW 12 51,640,408 (GRCm39) start codon destroyed probably null 0.02
R9175:Coch UTSW 12 51,645,060 (GRCm39) missense possibly damaging 0.96
R9533:Coch UTSW 12 51,650,132 (GRCm39) missense possibly damaging 0.69
R9617:Coch UTSW 12 51,645,034 (GRCm39) missense probably damaging 0.98
Predicted Primers PCR Primer
(F):5'- CTCAGAAATTCTTTACAGCAGACAC -3'
(R):5'- CATGTGTTCCCAGGCCTTTG -3'

Sequencing Primer
(F):5'- CACTGGTGTGAGAAAAGGAATACC -3'
(R):5'- TTAATTGCATAGGCTGGCCC -3'
Posted On 2014-10-15