rs141199896

Variant summary

Our verdict is Benign. The variant received -10 ACMG points: 0P and 10B. BP4_StrongBP6_ModerateBS2

The NM_004076.5(CRYBB3):​c.75+18G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000895 in 1,611,462 control chromosomes in the GnomAD database, including 3 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.00072 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00091 ( 3 hom. )

Consequence

CRYBB3
NM_004076.5 intron

Scores

2

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.188

Publications

0 publications found
Variant links:
Genes affected
CRYBB3 (HGNC:2400): (crystallin beta B3) Crystallins are separated into two classes: taxon-specific, or enzyme, and ubiquitous. The latter class constitutes the major proteins of vertebrate eye lens and maintains the transparency and refractive index of the lens. Since lens central fiber cells lose their nuclei during development, these crystallins are made and then retained throughout life, making them extremely stable proteins. Mammalian lens crystallins are divided into alpha, beta, and gamma families; beta and gamma crystallins are also considered as a superfamily. Alpha and beta families are further divided into acidic and basic groups. Seven protein regions exist in crystallins: four homologous motifs, a connecting peptide, and N- and C-terminal extensions. Beta-crystallins, the most heterogeneous, differ by the presence of the C-terminal extension (present in the basic group, none in the acidic group). Beta-crystallins form aggregates of different sizes and are able to self-associate to form dimers or to form heterodimers with other beta-crystallins. This gene, a beta basic group member, is part of a gene cluster with beta-A4, beta-B1, and beta-B2. Mutations in this gene result in cataract congenital nuclear autosomal recessive type 2. [provided by RefSeq, Feb 2013]
CRYBB3 Gene-Disease associations (from GenCC):
  • cataract 22 multiple types
    Inheritance: AR, SD, AD Classification: DEFINITIVE, STRONG, MODERATE Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, G2P
  • early-onset anterior polar cataract
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • early-onset nuclear cataract
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • early-onset non-syndromic cataract
    Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -10 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.81).
BP6
Variant 22-25201489-G-A is Benign according to our data. Variant chr22-25201489-G-A is described in ClinVar as Likely_benign. ClinVar VariationId is 1639465.Status of the report is criteria_provided_single_submitter, 1 stars.
BS2
High Homozygotes in GnomAdExome4 at 3 AR,AD,SD gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_004076.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CRYBB3
NM_004076.5
MANE Select
c.75+18G>A
intron
N/ANP_004067.1P26998

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CRYBB3
ENST00000215855.7
TSL:1 MANE Select
c.75+18G>A
intron
N/AENSP00000215855.2P26998
CRYBB3
ENST00000404334.1
TSL:3
c.75+18G>A
intron
N/AENSP00000386123.1B1AHR5

Frequencies

GnomAD3 genomes
AF:
0.000723
AC:
110
AN:
152072
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000966
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00111
Gnomad ASJ
AF:
0.000288
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00166
Gnomad FIN
AF:
0.00113
Gnomad MID
AF:
0.00316
Gnomad NFE
AF:
0.000956
Gnomad OTH
AF:
0.000958
GnomAD2 exomes
AF:
0.000953
AC:
238
AN:
249616
AF XY:
0.000976
show subpopulations
Gnomad AFR exome
AF:
0.000187
Gnomad AMR exome
AF:
0.000434
Gnomad ASJ exome
AF:
0.000200
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00148
Gnomad NFE exome
AF:
0.00109
Gnomad OTH exome
AF:
0.00148
GnomAD4 exome
AF:
0.000913
AC:
1332
AN:
1459272
Hom.:
3
Cov.:
34
AF XY:
0.000971
AC XY:
705
AN XY:
725972
show subpopulations
African (AFR)
AF:
0.000180
AC:
6
AN:
33420
American (AMR)
AF:
0.000537
AC:
24
AN:
44660
Ashkenazi Jewish (ASJ)
AF:
0.000153
AC:
4
AN:
26080
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39636
South Asian (SAS)
AF:
0.00187
AC:
161
AN:
86136
European-Finnish (FIN)
AF:
0.00213
AC:
113
AN:
53114
Middle Eastern (MID)
AF:
0.00246
AC:
13
AN:
5274
European-Non Finnish (NFE)
AF:
0.000869
AC:
965
AN:
1110768
Other (OTH)
AF:
0.000764
AC:
46
AN:
60184
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.490
Heterozygous variant carriers
0
89
179
268
358
447
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
32
64
96
128
160
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.000723
AC:
110
AN:
152190
Hom.:
0
Cov.:
32
AF XY:
0.000699
AC XY:
52
AN XY:
74412
show subpopulations
African (AFR)
AF:
0.0000963
AC:
4
AN:
41536
American (AMR)
AF:
0.00111
AC:
17
AN:
15286
Ashkenazi Jewish (ASJ)
AF:
0.000288
AC:
1
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5156
South Asian (SAS)
AF:
0.00166
AC:
8
AN:
4818
European-Finnish (FIN)
AF:
0.00113
AC:
12
AN:
10616
Middle Eastern (MID)
AF:
0.00340
AC:
1
AN:
294
European-Non Finnish (NFE)
AF:
0.000956
AC:
65
AN:
67992
Other (OTH)
AF:
0.000948
AC:
2
AN:
2110
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.513
Heterozygous variant carriers
0
5
10
16
21
26
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.000825
Hom.:
0
Bravo
AF:
0.000589

ClinVar

ClinVar submissions as Germline
Significance:Likely benign
Revision:criteria provided, single submitter
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
-
1
Cataract 22 multiple types (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.81
CADD
Benign
2.2
DANN
Benign
0.77
PhyloP100
0.19
Mutation Taster
=100/0
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
Details are displayed if max score is > 0.2

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

Publications

Other links and lift over

dbSNP: rs141199896; hg19: chr22-25597456; API