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GeneBe

X-148652015-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 1P and 0B. PP3

The NM_002025.4(AFF2):c.64C>T(p.Arg22Cys) variant causes a missense change. The variant allele was found at a frequency of 0.0000108 in 1,198,868 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 1 hemizygotes in GnomAD. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000090 ( 0 hom., 0 hem., cov: 22)
Exomes 𝑓: 0.000011 ( 0 hom. 1 hem. )

Consequence

AFF2
NM_002025.4 missense

Scores

13
3
1

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.76
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PP3
MetaRNN computational evidence supports a deleterious effect, 0.831

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
AFF2NM_002025.4 linkuse as main transcriptc.64C>T p.Arg22Cys missense_variant 2/21 ENST00000370460.7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
AFF2ENST00000370460.7 linkuse as main transcriptc.64C>T p.Arg22Cys missense_variant 2/215 NM_002025.4 P1P51816-1
AFF2ENST00000342251.7 linkuse as main transcriptc.64C>T p.Arg22Cys missense_variant 2/201 P51816-3
AFF2ENST00000370457.9 linkuse as main transcriptc.64C>T p.Arg22Cys missense_variant 2/201 P51816-6
AFF2ENST00000370458.5 linkuse as main transcriptc.64C>T p.Arg22Cys missense_variant 2/81 P51816-4

Frequencies

GnomAD3 genomes
AF:
0.00000904
AC:
1
AN:
110591
Hom.:
0
Cov.:
22
AF XY:
0.00
AC XY:
0
AN XY:
32889
show subpopulations
Gnomad AFR
AF:
0.0000329
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000113
AC:
2
AN:
176742
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
61652
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000383
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:
0.0000125
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000110
AC:
12
AN:
1088277
Hom.:
0
Cov.:
27
AF XY:
0.00000282
AC XY:
1
AN XY:
354669
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000865
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:
0.00000957
Gnomad4 OTH exome
AF:
0.0000219
GnomAD4 genome
AF:
0.00000904
AC:
1
AN:
110591
Hom.:
0
Cov.:
22
AF XY:
0.00
AC XY:
0
AN XY:
32889
show subpopulations
Gnomad4 AFR
AF:
0.0000329
Gnomad4 AMR
AF:
0.00
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
Bravo
AF:
0.00000756
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000149
AC:
1
ExAC
AF:
0.0000165
AC:
2

ClinVar

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

Submissions by phenotype

not provided Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingEurofins Ntd Llc (ga)Mar 31, 2016- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.87
BayesDel_addAF
Pathogenic
0.41
D
BayesDel_noAF
Pathogenic
0.47
Cadd
Uncertain
24
Dann
Pathogenic
1.0
DEOGEN2
Pathogenic
0.87
D;.;.;.
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Uncertain
0.96
D;D;D;D
M_CAP
Pathogenic
0.82
D
MetaRNN
Pathogenic
0.83
D;D;D;D
MetaSVM
Uncertain
0.19
D
MutationAssessor
Pathogenic
3.1
M;M;M;M
MutationTaster
Benign
1.0
D;D;D;D
PrimateAI
Pathogenic
0.88
D
PROVEAN
Pathogenic
-6.1
D;D;D;D
REVEL
Pathogenic
0.81
Sift
Pathogenic
0.0
D;D;D;D
Sift4G
Pathogenic
0.0
D;D;D;D
Polyphen
0.89
P;P;D;P
Vest4
0.63
MVP
0.97
MPC
0.71
ClinPred
0.80
D
GERP RS
4.8
Varity_R
0.80
gMVP
0.89

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: rs372514798; hg19: chrX-147733536; COSMIC: COSV60661905; API