NM_005210.4:c.283G>A

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4BS2

The NM_005210.4(CRYGB):​c.283G>A​(p.Asp95Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000416 in 1,610,268 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000045 ( 0 hom. )

Consequence

CRYGB
NM_005210.4 missense

Scores

3
15

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.17

Publications

0 publications found
Variant links:
Genes affected
CRYGB (HGNC:2409): (crystallin gamma B) 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. Gamma-crystallins are a homogeneous group of highly symmetrical, monomeric proteins typically lacking connecting peptides and terminal extensions. They are differentially regulated after early development. Four gamma-crystallin genes (gamma-A through gamma-D) and three pseudogenes (gamma-E, gamma-F, gamma-G) are tandemly organized in a genomic segment as a gene cluster. Whether due to aging or mutations in specific genes, gamma-crystallins have been involved in cataract formation. [provided by RefSeq, Jul 2008]
CRYGB Gene-Disease associations (from GenCC):
  • early-onset anterior polar cataract
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • early-onset lamellar cataract
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • total early-onset cataract
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • cataract 39 multiple types
    Inheritance: AD Classification: LIMITED Submitted by: G2P, Labcorp Genetics (formerly Invitae)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -5 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.3738978).
BS2
High AC in GnomAdExome4 at 65 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_005210.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CRYGB
NM_005210.4
MANE Select
c.283G>Ap.Asp95Asn
missense
Exon 3 of 3NP_005201.2P07316
LOC100507443
NR_038437.1
n.221+5704C>T
intron
N/A

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CRYGB
ENST00000260988.5
TSL:1 MANE Select
c.283G>Ap.Asp95Asn
missense
Exon 3 of 3ENSP00000260988.4P07316
ENSG00000295187
ENST00000728538.1
n.224+5704C>T
intron
N/A
ENSG00000295187
ENST00000728539.1
n.241+5704C>T
intron
N/A

Frequencies

GnomAD3 genomes
AF:
0.0000132
AC:
2
AN:
152056
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.00000812
AC:
2
AN:
246216
AF XY:
0.00000751
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000546
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000905
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000446
AC:
65
AN:
1458212
Hom.:
0
Cov.:
33
AF XY:
0.0000345
AC XY:
25
AN XY:
725208
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33374
American (AMR)
AF:
0.00
AC:
0
AN:
44186
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25928
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39636
South Asian (SAS)
AF:
0.0000117
AC:
1
AN:
85556
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53360
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5614
European-Non Finnish (NFE)
AF:
0.0000567
AC:
63
AN:
1110338
Other (OTH)
AF:
0.0000166
AC:
1
AN:
60220
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.478
Heterozygous variant carriers
0
4
8
11
15
19
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
4
8
12
16
20
<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:
0.0000132
AC:
2
AN:
152056
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74276
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41368
American (AMR)
AF:
0.00
AC:
0
AN:
15272
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5184
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4828
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10598
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000294
AC:
2
AN:
68018
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.500
Heterozygous variant carriers
0
0
1
1
2
2
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:
0.0000565
Hom.:
0
Bravo
AF:
0.0000189
ExAC
AF:
0.0000165
AC:
2
EpiCase
AF:
0.0000546
EpiControl
AF:
0.00

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, single submitter
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.20
BayesDel_addAF
Benign
-0.30
T
BayesDel_noAF
Benign
-0.50
CADD
Uncertain
24
DANN
Uncertain
1.0
DEOGEN2
Benign
0.35
T
Eigen
Benign
0.040
Eigen_PC
Benign
0.14
FATHMM_MKL
Uncertain
0.84
D
LIST_S2
Benign
0.81
T
M_CAP
Benign
0.022
T
MetaRNN
Benign
0.37
T
MetaSVM
Benign
-0.47
T
MutationAssessor
Benign
1.6
L
PhyloP100
3.2
PrimateAI
Benign
0.45
T
PROVEAN
Benign
-1.9
N
REVEL
Benign
0.28
Sift
Benign
0.032
D
Sift4G
Uncertain
0.033
D
Polyphen
0.18
B
Vest4
0.16
MutPred
0.79
Loss of ubiquitination at K92 (P = 0.0435)
MVP
0.84
MPC
0.078
ClinPred
0.84
D
GERP RS
4.6
Varity_R
0.40
gMVP
0.24
Mutation Taster
=72/28
polymorphism

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

Other links and lift over

dbSNP: rs772366824; hg19: chr2-209007607; COSMIC: COSV105029783; API