Incidental Mutation 'R1674:Best1'
Institutional Source Beutler Lab
Gene Symbol Best1
Ensembl Gene ENSMUSG00000037418
Gene Namebestrophin 1
Synonymsbest macular dystrophy, mBest1, Vmd2
MMRRC Submission 039710-MU
Accession Numbers
Is this an essential gene? Non essential (E-score: 0.000) question?
Stock #R1674 (G1)
Quality Score220
Status Validated
Chromosomal Location9985174-10001633 bp(-) (GRCm38)
Type of Mutationcritical splice donor site (2 bp from exon)
DNA Base Change (assembly) A to G at 9993226 bp
Amino Acid Change
Ref Sequence ENSEMBL: ENSMUSP00000113053 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000117346]
Predicted Effect probably null
Transcript: ENSMUST00000117346
SMART Domains Protein: ENSMUSP00000113053
Gene: ENSMUSG00000037418

Pfam:Bestrophin 8 316 8.5e-111 PFAM
low complexity region 476 488 N/A INTRINSIC
Predicted Effect noncoding transcript
Transcript: ENSMUST00000144273
Meta Mutation Damage Score 0.9499 question?
Coding Region Coverage
  • 1x: 99.2%
  • 3x: 98.5%
  • 10x: 96.8%
  • 20x: 94.1%
Validation Efficiency 100% (91/91)
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] This gene encodes a member of the bestrophin gene family. This small gene family is characterized by proteins with a highly conserved N-terminus with four to six transmembrane domains. Bestrophins may form chloride ion channels or may regulate voltage-gated L-type calcium-ion channels. Bestrophins are generally believed to form calcium-activated chloride-ion channels in epithelial cells but they have also been shown to be highly permeable to bicarbonate ion transport in retinal tissue. Mutations in this gene are responsible for juvenile-onset vitelliform macular dystrophy (VMD2), also known as Best macular dystrophy, in addition to adult-onset vitelliform macular dystrophy (AVMD) and other retinopathies. Alternative splicing results in multiple variants encoding distinct isoforms.[provided by RefSeq, Nov 2008]
PHENOTYPE: Homozygous null mutations of this gene generally result in abnormal retinal pigment epithelium morphology and/or altered eye electrophysiology. Homozygotes for a null allele show male subfertility associated with abnormal sperm morphology and reduced motility in the absence of retinal pathology. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 89 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
4930579G24Rik A G 3: 79,631,144 T66A probably benign Het
5430401F13Rik A T 6: 131,552,803 Q120L unknown Het
Akirin1 A G 4: 123,743,463 S110P possibly damaging Het
Ankmy2 T A 12: 36,187,669 S256T probably benign Het
Areg T C 5: 91,143,626 F143L probably damaging Het
Arhgap42 A G 9: 9,006,584 S604P probably damaging Het
Arid1a A G 4: 133,689,260 V1068A unknown Het
Arid4a G A 12: 71,075,338 S509N probably benign Het
Atoh1 T G 6: 64,729,930 I203S possibly damaging Het
Atp5l T C 9: 44,914,659 T69A possibly damaging Het
Baz1b A G 5: 135,205,111 E164G probably damaging Het
Baz2b A T 2: 59,912,992 V1545E possibly damaging Het
Casp8 T A 1: 58,844,416 I314N probably damaging Het
Ccdc13 T C 9: 121,809,142 T26A probably damaging Het
Ccr6 A T 17: 8,256,217 I85L probably damaging Het
Cdh10 A T 15: 18,985,066 N272I probably benign Het
Cdh10 T A 15: 19,013,330 I672K probably damaging Het
Cdk17 A T 10: 93,221,630 E163V probably benign Het
Chsy1 T C 7: 66,171,663 F549L probably damaging Het
CN725425 T C 15: 91,246,921 Y420H possibly damaging Het
Cpt1b A T 15: 89,422,332 M281K possibly damaging Het
Crlf2 A G 5: 109,558,803 probably null Het
Ctif T C 18: 75,637,180 T45A probably benign Het
Ddx31 T C 2: 28,858,816 F252S probably damaging Het
Dennd2d T C 3: 106,492,517 I242T probably benign Het
Dennd5b A G 6: 148,998,284 F1205S probably damaging Het
Dopey1 T C 9: 86,536,160 S1981P probably damaging Het
Dsg1b A T 18: 20,399,521 T541S probably benign Het
Dst T A 1: 34,223,795 probably null Het
Dysf T C 6: 84,179,715 V1508A probably benign Het
Erf A T 7: 25,245,306 L200Q possibly damaging Het
Erich3 A G 3: 154,762,623 probably benign Het
Esrrb C T 12: 86,514,451 L320F probably damaging Het
Fap T A 2: 62,519,005 D508V probably benign Het
Fdft1 A C 14: 63,164,585 N48K probably benign Het
Fdps A G 3: 89,100,730 V94A probably benign Het
Fes A T 7: 80,377,938 H819Q probably benign Het
Foxd1 G T 13: 98,354,839 D74Y unknown Het
Gm136 A T 4: 34,746,662 probably benign Het
Gm14685 G T X: 73,127,655 G218C probably damaging Het
Gm5919 T A 9: 83,883,285 L58* probably null Het
Gm6871 C T 7: 41,573,635 V10I possibly damaging Het
Isy1 T C 6: 87,834,487 R29G probably damaging Het
Kif16b T A 2: 142,712,953 K653* probably null Het
Kif17 A G 4: 138,301,258 T706A probably benign Het
Kif18b G T 11: 102,913,060 P425T probably benign Het
Lama1 T A 17: 67,791,244 V1812E probably benign Het
Lama5 A G 2: 180,201,987 V430A probably benign Het
Lclat1 A G 17: 73,239,781 E231G probably damaging Het
Lig4 T C 8: 9,971,692 D696G probably benign Het
Mylpf T A 7: 127,214,137 V151E probably damaging Het
Naa16 A T 14: 79,387,057 M1K probably null Het
Ndufaf6 T C 4: 11,070,264 K119R probably benign Het
Nt5c1b T C 12: 10,370,055 probably benign Het
Olfr1080 T A 2: 86,553,860 D88V probably damaging Het
Olfr1102 T C 2: 87,002,233 V88A probably benign Het
Olfr1197 A G 2: 88,729,257 V114A probably damaging Het
Olfr1504 T A 19: 13,887,590 I207L probably benign Het
Olfr307 G A 7: 86,335,557 P280S probably damaging Het
Otud4 A G 8: 79,673,147 N830S probably benign Het
Pdcd10 A C 3: 75,541,179 M26R probably damaging Het
Pitpnc1 A G 11: 107,226,245 V223A possibly damaging Het
Pkp2 A G 16: 16,240,558 D368G possibly damaging Het
Pla1a A T 16: 38,414,810 M174K probably benign Het
Polr2b A G 5: 77,326,623 K436E possibly damaging Het
Rdh16 A G 10: 127,801,357 M54V probably benign Het
Sall2 C A 14: 52,313,836 C632F probably damaging Het
Sart1 T A 19: 5,385,825 I120F probably damaging Het
Slco1a1 A T 6: 141,935,935 M157K probably damaging Het
Snapc4 T C 2: 26,376,197 T178A probably benign Het
Sox6 T C 7: 115,801,419 I63V probably benign Het
Spin1 T A 13: 51,149,099 Y243N probably damaging Het
Stmnd1 T C 13: 46,299,621 Y258H possibly damaging Het
Tex13b A T X: 140,810,070 N184K probably benign Het
Tgm5 T C 2: 121,071,544 T215A possibly damaging Het
Tnks2 A G 19: 36,871,622 T165A probably benign Het
Top2a A T 11: 99,009,273 F667Y probably damaging Het
Tpo T C 12: 30,100,568 M438V probably benign Het
Tyw1 A G 5: 130,269,328 R237G probably benign Het
Unc5c G A 3: 141,757,837 V240I possibly damaging Het
Unc80 A C 1: 66,509,308 T580P probably damaging Het
Upp2 G A 2: 58,790,064 E301K probably benign Het
Utp18 A G 11: 93,876,053 probably null Het
Vmn1r23 T C 6: 57,926,061 D244G possibly damaging Het
Vps13c T A 9: 67,853,703 L51* probably null Het
Xpnpep3 A G 15: 81,430,767 T223A probably benign Het
Zfp28 T A 7: 6,394,943 H792Q possibly damaging Het
Zfp804a A G 2: 82,258,824 K999R probably benign Het
Zkscan16 G A 4: 58,948,918 V158M possibly damaging Het
Other mutations in Best1
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL01563:Best1 APN 19 9986735 missense probably benign 0.22
IGL02129:Best1 APN 19 9992921 missense probably benign
IGL02310:Best1 APN 19 9989152 missense probably benign 0.00
IGL02470:Best1 APN 19 9992976 missense probably benign 0.43
IGL02505:Best1 APN 19 9989150 missense probably damaging 1.00
R0366:Best1 UTSW 19 9992053 splice site probably null
R1476:Best1 UTSW 19 9990489 nonsense probably null
R2091:Best1 UTSW 19 9992079 missense probably benign 0.27
R2516:Best1 UTSW 19 9993311 nonsense probably null
R2866:Best1 UTSW 19 9986221 missense probably benign
R4693:Best1 UTSW 19 9997135 missense probably damaging 1.00
R4851:Best1 UTSW 19 9991698 missense probably damaging 1.00
R4895:Best1 UTSW 19 9992771 missense probably benign 0.00
R5633:Best1 UTSW 19 9992103 missense probably benign 0.29
R5700:Best1 UTSW 19 9997199 unclassified probably benign
R5837:Best1 UTSW 19 9989119 splice site probably null
R6893:Best1 UTSW 19 9997082 missense probably damaging 1.00
R7021:Best1 UTSW 19 9986779 missense probably benign
R7220:Best1 UTSW 19 9992115 missense probably benign 0.31
R7267:Best1 UTSW 19 9986813 missense probably benign 0.00
R7284:Best1 UTSW 19 9986373 critical splice acceptor site probably null
R7489:Best1 UTSW 19 9997046 missense possibly damaging 0.68
R7568:Best1 UTSW 19 9989275 critical splice acceptor site probably null
R7798:Best1 UTSW 19 9991671 missense probably damaging 1.00
R8192:Best1 UTSW 19 9986300 missense possibly damaging 0.52
X0065:Best1 UTSW 19 9986975 missense probably benign 0.03
Z1177:Best1 UTSW 19 9993239 missense probably damaging 1.00
Predicted Primers PCR Primer

Sequencing Primer
Posted On2014-05-09