chr6-106519313-G-A

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001371242.2(CRYBG1):​c.2105G>A​(p.Arg702Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000434 in 1,614,076 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00024 ( 1 hom., cov: 32)
Exomes 𝑓: 0.000023 ( 0 hom. )

Consequence

CRYBG1
NM_001371242.2 missense

Scores

18

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.92
Variant links:
Genes affected
CRYBG1 (HGNC:356): (crystallin beta-gamma domain containing 1) Predicted to enable carbohydrate binding activity. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

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=0.021509498).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CRYBG1NM_001371242.2 linkuse as main transcriptc.2105G>A p.Arg702Lys missense_variant 4/22 ENST00000633556.3
CRYBG1NM_001624.4 linkuse as main transcriptc.881G>A p.Arg294Lys missense_variant 2/20
CRYBG1XM_047418270.1 linkuse as main transcriptc.2183G>A p.Arg728Lys missense_variant 5/23

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CRYBG1ENST00000633556.3 linkuse as main transcriptc.2105G>A p.Arg702Lys missense_variant 4/225 NM_001371242.2 P1

Frequencies

GnomAD3 genomes
AF:
0.000243
AC:
37
AN:
152112
Hom.:
1
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000869
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000398
AC:
10
AN:
251296
Hom.:
0
AF XY:
0.0000294
AC XY:
4
AN XY:
135848
show subpopulations
Gnomad AFR exome
AF:
0.000554
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.0000226
AC:
33
AN:
1461846
Hom.:
0
Cov.:
33
AF XY:
0.0000193
AC XY:
14
AN XY:
727214
show subpopulations
Gnomad4 AFR exome
AF:
0.000986
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.000243
AC:
37
AN:
152230
Hom.:
1
Cov.:
32
AF XY:
0.000202
AC XY:
15
AN XY:
74426
show subpopulations
Gnomad4 AFR
AF:
0.000867
Gnomad4 AMR
AF:
0.0000654
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000516
Hom.:
1
Bravo
AF:
0.000249
ExAC
AF:
0.0000412
AC:
5

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsApr 08, 2024The c.881G>A (p.R294K) alteration is located in exon 2 (coding exon 2) of the AIM1 gene. This alteration results from a G to A substitution at nucleotide position 881, causing the arginine (R) at amino acid position 294 to be replaced by a lysine (K). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.076
BayesDel_addAF
Benign
-0.50
T
BayesDel_noAF
Benign
-0.55
CADD
Benign
4.6
DANN
Benign
0.69
DEOGEN2
Benign
0.0039
.;T
Eigen
Benign
-0.64
Eigen_PC
Benign
-0.51
FATHMM_MKL
Benign
0.38
N
LIST_S2
Benign
0.59
T;T
M_CAP
Benign
0.0058
T
MetaRNN
Benign
0.022
T;T
MetaSVM
Benign
-1.0
T
MutationTaster
Benign
0.96
N
PrimateAI
Benign
0.32
T
PROVEAN
Benign
-0.25
.;N
REVEL
Benign
0.10
Sift
Benign
0.68
.;T
Sift4G
Benign
1.0
T;T
Polyphen
0.0010
.;B
Vest4
0.10
MVP
0.59
MPC
0.085
ClinPred
0.027
T
GERP RS
3.7
Varity_R
0.071
gMVP
0.11

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: rs149102964; hg19: chr6-106967188; COSMIC: COSV64811171; API