Incidental Mutation 'R2516:Best1'
Institutional Source Beutler Lab
Gene Symbol Best1
Ensembl Gene ENSMUSG00000037418
Gene Namebestrophin 1
Synonymsbest macular dystrophy, mBest1, Vmd2
MMRRC Submission 040420-MU
Accession Numbers
Is this an essential gene? Non essential (E-score: 0.000) question?
Stock #R2516 (G1)
Quality Score225
Status Validated
Chromosomal Location9985174-10001633 bp(-) (GRCm38)
Type of Mutationnonsense
DNA Base Change (assembly) G to T at 9993311 bp
Amino Acid Change Serine to Stop codon at position 55 (S55*)
Ref Sequence ENSEMBL: ENSMUSP00000113053 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000117346]
Predicted Effect probably null
Transcript: ENSMUST00000117346
AA Change: S55*
SMART Domains Protein: ENSMUSP00000113053
Gene: ENSMUSG00000037418
AA Change: S55*

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 0.9755 question?
Coding Region Coverage
  • 1x: 99.2%
  • 3x: 98.6%
  • 10x: 97.3%
  • 20x: 95.1%
Validation Efficiency 98% (65/66)
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: 66 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Abcb11 A T 2: 69,329,329 I6N possibly damaging Het
Aen T C 7: 78,905,868 V188A probably damaging Het
Afg3l1 A G 8: 123,501,954 E753G probably damaging Het
Alas1 G A 9: 106,238,660 T385I probably damaging Het
Alms1 C A 6: 85,667,963 probably benign Het
Ankrd65 A G 4: 155,791,411 T30A possibly damaging Het
App T C 16: 84,978,229 S582G probably damaging Het
Arfgef1 A T 1: 10,153,654 V1473E possibly damaging Het
Arhgap21 G A 2: 20,854,998 P1196S probably damaging Het
Arhgap24 A G 5: 102,891,910 T238A probably benign Het
Atf7 T C 15: 102,529,004 probably benign Het
Capn11 A G 17: 45,633,799 V514A probably damaging Het
Cep104 T A 4: 153,989,146 M52K probably damaging Het
Clca3a1 C T 3: 144,737,858 probably null Het
Cyp3a25 T C 5: 146,003,027 probably null Het
Dmxl2 G A 9: 54,400,094 P2197S probably damaging Het
Drosha T C 15: 12,859,465 probably null Het
Exosc9 A G 3: 36,563,162 K355R probably benign Het
Fut1 A C 7: 45,619,198 H192P probably benign Het
Gm572 T A 4: 148,664,384 V166D possibly damaging Het
Gm9966 C T 7: 95,958,528 P19S unknown Het
Gmds C T 13: 32,100,473 V219I probably damaging Het
Gsn G A 2: 35,283,953 E25K probably benign Het
Il4i1 T C 7: 44,839,891 F368S probably damaging Het
Irak1bp1 T C 9: 82,830,320 L98P probably damaging Het
Khdrbs3 T C 15: 69,024,695 probably benign Het
Kndc1 T C 7: 139,921,822 I925T probably damaging Het
Laptm4a T C 12: 8,938,151 I296T probably benign Het
Lpl A T 8: 68,887,518 H55L probably benign Het
Lrrk2 C A 15: 91,755,927 N1558K probably benign Het
Mfsd2a A G 4: 122,950,487 L289P probably damaging Het
Mmrn2 T A 14: 34,398,802 M543K probably benign Het
Mnat1 T C 12: 73,181,776 probably benign Het
Msto1 A T 3: 88,911,893 probably null Het
Mtus1 A G 8: 41,082,739 Y647H probably damaging Het
Nars A T 18: 64,505,016 V289E probably damaging Het
Oit3 T A 10: 59,428,345 K322N probably damaging Het
Oit3 G A 10: 59,441,685 probably benign Het
Olfr1024 A G 2: 85,904,556 I166T probably benign Het
Olfr1467 T A 19: 13,365,193 C188* probably null Het
Olfr728 T C 14: 50,139,983 I219V probably benign Het
Olfr801 G A 10: 129,670,286 R78W probably damaging Het
Pecr A T 1: 72,277,310 C79S probably damaging Het
Plekhn1 T C 4: 156,222,659 D478G probably damaging Het
Pls1 A T 9: 95,776,563 M264K probably benign Het
Ptprj C A 2: 90,474,996 probably benign Het
Pygm A G 19: 6,397,601 D646G probably benign Het
Rif1 GCCACCA GCCA 2: 52,110,324 probably benign Het
Scn8a T C 15: 100,969,162 V283A probably benign Het
Shisa5 T C 9: 109,056,507 probably null Het
Slc10a4 A G 5: 73,008,505 I246V possibly damaging Het
Slc1a1 A T 19: 28,892,912 I104F probably benign Het
Slc22a8 A G 19: 8,610,195 Y511C probably benign Het
Slc6a5 A G 7: 49,956,462 N706S probably benign Het
Sos2 T C 12: 69,650,659 K96E probably damaging Het
Stom G A 2: 35,315,965 R251* probably null Het
Sycp1 T C 3: 102,845,066 E800G probably benign Het
Tab2 G A 10: 7,907,481 P679L probably damaging Het
Tiam2 G A 17: 3,453,382 V945I probably damaging Het
Trpm5 G T 7: 143,074,517 P1007Q probably damaging Het
Uchl1 T G 5: 66,682,613 I139S probably damaging Het
Vmn1r232 A G 17: 20,914,026 I104T possibly damaging Het
Vmn2r97 G A 17: 18,947,552 M689I probably benign Het
Zc3h18 A T 8: 122,403,165 probably benign Het
Zfhx4 C T 3: 5,403,358 P2859S probably benign Het
Zfp456 T C 13: 67,362,372 K99R probably benign 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
R1674:Best1 UTSW 19 9993226 critical splice donor site probably null
R2091:Best1 UTSW 19 9992079 missense probably benign 0.27
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
R8523:Best1 UTSW 19 9991663 missense possibly damaging 0.91
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 On2014-12-04