Variant rs782673472 details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 0P and 14B. BP4_StrongBP6_ModerateBS1BS2

The NM_002025.4(AFF2):c.47+16T>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000372 in 1,208,723 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 22 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.000018 ( 0 hom., 1 hem., cov: 24)

Exomes 𝑓: 0.000039 ( 0 hom. 21 hem. )

Consequence

AFF2
NM_002025.4 intron

Scores

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.334

Variant links:

Genes affected

AFF2 (HGNC:3776): (ALF transcription elongation factor 2) This gene encodes a putative transcriptional activator that is a member of the AF4\FMR2 gene family. This gene is associated with the folate-sensitive fragile X E locus on chromosome X. A repeat polymorphism in the fragile X E locus results in silencing of this gene causing Fragile X E syndrome. Fragile X E syndrome is a form of nonsyndromic X-linked cognitive disability. In addition, this gene contains 6-25 GCC repeats that are expanded to >200 repeats in the disease state. Alternate splicing results in multiple transcript variants.[provided by RefSeq, Jul 2016]

AFF2 links:

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -14 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.67).

BP6

Variant X-148501160-T-C is Benign according to our data. Variant chrX-148501160-T-C is described in ClinVar as [Likely_benign]. Clinvar id is 210101.Status of the report is criteria_provided_single_submitter, 1 stars.

BS1

Variant frequency is greater than expected in population sas. gnomad4 allele frequency = 0.0000178 (2/112325) while in subpopulation SAS AF= 0.000745 (2/2686). AF 95% confidence interval is 0.000131. There are 0 homozygotes in gnomad4. There are 1 alleles in male gnomad4 subpopulation. This position pass quality control queck.

BS2

High Hemizygotes in GnomAdExome at 7 XL gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
AFF2	NM_002025.4 linkuse as main transcript	c.47+16T>C		intron_variant		ENST00000370460.7

Ensembl

Gene	Transcript	HGVSc	Effect	TSL	MANE	Appris	UniProt
AFF2	ENST00000370460.7 linkuse as main transcript	c.47+16T>C	intron_variant	5	NM_002025.4	P1	P51816-1
AFF2	ENST00000342251.7 linkuse as main transcript	c.47+16T>C	intron_variant	1			P51816-3
AFF2	ENST00000370457.9 linkuse as main transcript	c.47+16T>C	intron_variant	1			P51816-6
AFF2	ENST00000370458.5 linkuse as main transcript	c.47+16T>C	intron_variant	1			P51816-4

Frequencies

GnomAD3 genomes

AF:

0.0000178

AC:

AN:

112274

Hom.:

Cov.:

AF XY:

0.0000290

AC XY:

AN XY:

34442

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:

0.000742

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000832

AC:

AN:

180250

Hom.:

AF XY:

0.000105

AC XY:

AN XY:

66490

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.000792

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000392

AC:

AN:

1096398

Hom.:

Cov.:

AF XY:

0.0000580

AC XY:

AN XY:

362020

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.000758

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.0000435

GnomAD4 genome

AF:

0.0000178

AC:

AN:

112325

Hom.:

Cov.:

AF XY:

0.0000290

AC XY:

AN XY:

34503

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000745

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

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 submitter

clinical testing

Genetic Services Laboratory, University of Chicago

Jul 17, 2015

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.67

Cadd

Benign

Dann

Benign

0.84

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