chr11-61950091-T-A

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 0P and 14B. BP4_StrongBP6_ModerateBS1BS2

The NM_001363592.1(BEST1):​c.-373T>A variant causes a 5 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00738 in 152,588 control chromosomes in the GnomAD database, including 4 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.0074 ( 4 hom., cov: 32)
Exomes 𝑓: 0.013 ( 0 hom. )

Consequence

BEST1
NM_001363592.1 5_prime_UTR

Scores

2

Clinical Significance

Likely benign criteria provided, single submitter B:3

Conservation

PhyloP100: -0.967
Variant links:
Genes affected
BEST1 (HGNC:12703): (bestrophin 1) 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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -14 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.81).
BP6
Variant 11-61950091-T-A is Benign according to our data. Variant chr11-61950091-T-A is described in ClinVar as [Likely_benign]. Clinvar id is 305111.Status of the report is criteria_provided_single_submitter, 1 stars.
BS1
Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.00737 (1122/152278) while in subpopulation NFE AF= 0.0113 (769/68004). AF 95% confidence interval is 0.0106. There are 4 homozygotes in gnomad4. There are 501 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High AC in GnomAd4 at 1122 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
BEST1NM_001363592.1 linkuse as main transcriptc.-373T>A 5_prime_UTR_variant 1/10 NP_001350521.1
BEST1XM_005274210.5 linkuse as main transcriptc.-373T>A 5_prime_UTR_variant 1/10 XP_005274267.1
BEST1XM_005274221.5 linkuse as main transcriptc.-373T>A 5_prime_UTR_variant 1/7 XP_005274278.1 B7Z375

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
BEST1ENST00000534553 linkuse as main transcriptc.-548T>A 5_prime_UTR_variant 1/52 ENSP00000431189.1 E9PMB5

Frequencies

GnomAD3 genomes
AF:
0.00739
AC:
1124
AN:
152160
Hom.:
4
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00256
Gnomad AMI
AF:
0.00877
Gnomad AMR
AF:
0.00511
Gnomad ASJ
AF:
0.00202
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00476
Gnomad FIN
AF:
0.0108
Gnomad MID
AF:
0.00316
Gnomad NFE
AF:
0.0113
Gnomad OTH
AF:
0.00717
GnomAD4 exome
AF:
0.0129
AC:
4
AN:
310
Hom.:
0
Cov.:
0
AF XY:
0.0192
AC XY:
4
AN XY:
208
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00694
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0221
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00737
AC:
1122
AN:
152278
Hom.:
4
Cov.:
32
AF XY:
0.00673
AC XY:
501
AN XY:
74466
show subpopulations
Gnomad4 AFR
AF:
0.00255
Gnomad4 AMR
AF:
0.00510
Gnomad4 ASJ
AF:
0.00202
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00477
Gnomad4 FIN
AF:
0.0108
Gnomad4 NFE
AF:
0.0113
Gnomad4 OTH
AF:
0.00710
Alfa
AF:
0.00746
Hom.:
0
Bravo
AF:
0.00710
Asia WGS
AF:
0.00173
AC:
6
AN:
3478

ClinVar

Significance: Likely benign
Submissions summary: Benign:3
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Retinitis Pigmentosa, Recessive Benign:1
Likely benign, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaJun 14, 2016- -
Autosomal dominant vitreoretinochoroidopathy Benign:1
Likely benign, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaJun 14, 2016- -
Vitelliform macular dystrophy 2 Benign:1
Likely benign, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaJun 14, 2016- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.81
CADD
Benign
0.37
DANN
Benign
0.40

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs117165769; hg19: chr11-61717563; API