Variant 21-43169153-C-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Benign. Variant got -15 ACMG points: 0P and 15B. BP4_StrongBP6_ModerateBP7BA1

The NM_000394.4(CRYAA):c.54C>T(p.Tyr18=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00126 in 980,440 control chromosomes in the GnomAD database, including 490 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: 𝑓 0.0076 ( 168 hom., cov: 11)

Exomes 𝑓: 0.0013 ( 490 hom. )

Failed GnomAD Quality Control

Consequence

CRYAA
NM_000394.4 synonymous

Scores

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: 1.11

Variant links:

Genes affected

CRYAA (HGNC:2388): (crystallin alpha A) Mammalian lens crystallins are divided into alpha, beta, and gamma families. Alpha crystallins are composed of two gene products: alpha-A and alpha-B, for acidic and basic, respectively. Alpha crystallins can be induced by heat shock and are members of the small heat shock protein (HSP20) family. They act as molecular chaperones although they do not renature proteins and release them in the fashion of a true chaperone; instead they hold them in large soluble aggregates. Post-translational modifications decrease the ability to chaperone. These heterogeneous aggregates consist of 30-40 subunits; the alpha-A and alpha-B subunits have a 3:1 ratio, respectively. Two additional functions of alpha crystallins are an autokinase activity and participation in the intracellular architecture. The encoded protein has been identified as a moonlighting protein based on its ability to perform mechanistically distinct functions. Alpha-A and alpha-B gene products are differentially expressed; alpha-A is preferentially restricted to the lens and alpha-B is expressed widely in many tissues and organs. Defects in this gene cause autosomal dominant congenital cataract (ADCC). [provided by RefSeq, Jan 2014]

CRYAA links:

LOC107987300 (HGNC:):

LOC107987300 links:

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -15 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.49).

BP6

Variant 21-43169153-C-T is Benign according to our data. Variant chr21-43169153-C-T is described in ClinVar as [Benign]. Clinvar id is 466610.Status of the report is criteria_provided_single_submitter, 1 stars.

BP7

Synonymous conserved (PhyloP=1.11 with no splicing effect.

BA1

GnomAdExome4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.0538 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CRYAA	NM_000394.4 linkuse as main transcript	c.54C>T	p.Tyr18=	synonymous_variant	1/3	ENST00000291554.6	NP_000385.1
LOC107987300	XR_007067885.1 linkuse as main transcript	n.546+1884G>A		intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CRYAA	ENST00000291554.6 linkuse as main transcript	c.54C>T	p.Tyr18=	synonymous_variant	1/3	1	NM_000394.4	ENSP00000291554	P1
CRYAA	ENST00000482775.1 linkuse as main transcript	n.67C>T		non_coding_transcript_exon_variant	1/4	5

Frequencies

GnomAD3 genomes

AF:

0.00

AC:

629

AN:

83104

Hom.:

169

Cov.:

FAILED QC

Gnomad AFR

AF:

0.0369

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00417

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00532

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00921

GnomAD3 exomes

AF:

0.00129

AC:

324

AN:

251316

Hom.:

AF XY:

0.000876

AC XY:

119

AN XY:

135842

show subpopulations

Gnomad AFR exome

AF:

0.0175

Gnomad AMR exome

AF:

0.000954

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000327

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000879

Gnomad OTH exome

AF:

0.000814

GnomAD4 exome

AF:

0.00126

AC:

1235

AN:

980440

Hom.:

490

Cov.:

AF XY:

0.00111

AC XY:

545

AN XY:

492986

show subpopulations

Gnomad4 AFR exome

AF:

0.0568

Gnomad4 AMR exome

AF:

0.00183

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000781

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000168

Gnomad4 OTH exome

AF:

0.00343

GnomAD4 genome

Data not reliable, filtered out with message: AS_VQSR

AF:

0.00759

AC:

631

AN:

83166

Hom.:

168

Cov.:

AF XY:

0.00754

AC XY:

307

AN XY:

40740

show subpopulations

Gnomad4 AFR

AF:

0.0369

Gnomad4 AMR

AF:

0.00416

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:

0.00904

Alfa

AF:

0.00328

Hom.:

Asia WGS

AF:

0.00260

AC:

AN:

3478

EpiCase

AF:

0.0000545

EpiControl

AF:

0.00

ClinVar

Significance: Benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Cataract 9 multiple types

Benign:1

Benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jan 31, 2024

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.49

CADD

Benign

7.8

DANN

Benign

0.60

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over