12-69655526-T-C

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_ModerateBP6_Moderate

The NM_032735.3(BEST3):​c.1388A>G​(p.His463Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: not found (cov: 31)

Consequence

BEST3
NM_032735.3 missense

Scores

3
16

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.0890
Variant links:
Genes affected
BEST3 (HGNC:17105): (bestrophin 3) BEST3 belongs to the bestrophin family of anion channels, which includes BEST1 (MIM 607854), the gene mutant in vitelliform macular dystrophy (VMD; MIM 153700), and 2 other BEST1-like genes, BEST2 (MIM 607335) and BEST4 (MIM 607336). Bestrophins are transmembrane (TM) proteins that share a homology region containing a high content of aromatic residues, including an invariant arg-phe-pro (RFP) motif. The bestrophin genes share a conserved gene structure, with almost identical sizes of the 8 RFP-TM domain-encoding exons and highly conserved exon-intron boundaries. Each of the 4 bestrophin genes has a unique 3-prime end of variable length (Stohr et al., 2002 [PubMed 12032738]; Tsunenari et al., 2003 [PubMed 12907679]).[supplied by OMIM, Mar 2008]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.07865301).
BP6
Variant 12-69655526-T-C is Benign according to our data. Variant chr12-69655526-T-C is described in ClinVar as [Likely_benign]. Clinvar id is 3260810.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
BEST3NM_032735.3 linkuse as main transcriptc.1388A>G p.His463Arg missense_variant 10/10 ENST00000330891.10 NP_116124.2 Q8N1M1-2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
BEST3ENST00000330891.10 linkuse as main transcriptc.1388A>G p.His463Arg missense_variant 10/105 NM_032735.3 ENSP00000332413.5 Q8N1M1-2

Frequencies

GnomAD3 genomes
Cov.:
31
GnomAD4 exome
Cov.:
34
GnomAD4 genome
Cov.:
31

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Benign:1
Likely benign, criteria provided, single submitterclinical testingAmbry GeneticsApr 29, 2024This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.063
BayesDel_addAF
Benign
-0.055
T
BayesDel_noAF
Benign
-0.32
CADD
Benign
0.55
DANN
Benign
0.27
DEOGEN2
Benign
0.077
.;T;.
Eigen
Benign
-1.3
Eigen_PC
Benign
-1.2
FATHMM_MKL
Benign
0.060
N
LIST_S2
Benign
0.52
T;T;T
M_CAP
Uncertain
0.12
D
MetaRNN
Benign
0.079
T;T;T
MetaSVM
Uncertain
0.33
D
MutationAssessor
Benign
1.4
.;L;.
PrimateAI
Benign
0.27
T
PROVEAN
Benign
-1.3
N;N;N
REVEL
Uncertain
0.34
Sift
Benign
0.11
T;T;T
Sift4G
Benign
0.092
T;T;T
Polyphen
0.0020
.;B;.
Vest4
0.036
MutPred
0.46
.;Gain of solvent accessibility (P = 0.0584);.;
MVP
0.61
MPC
0.063
ClinPred
0.049
T
GERP RS
1.8
Varity_R
0.038
gMVP
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

No publications associated with this variant yet.

Other links and lift over

hg19: chr12-70049306; API