chr17-6758118-C-G

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The ENST00000361842.8(XAF1):ā€‹c.62C>Gā€‹(p.Thr21Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000116 in 1,614,118 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: š‘“ 0.000085 ( 0 hom., cov: 32)
Exomes š‘“: 0.00012 ( 0 hom. )

Consequence

XAF1
ENST00000361842.8 missense

Scores

19

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.211
Variant links:
Genes affected
XAF1 (HGNC:30932): (XIAP associated factor 1) This gene encodes a protein which binds to and counteracts the inhibitory effect of a member of the IAP (inhibitor of apoptosis) protein family. IAP proteins bind to and inhibit caspases which are activated during apoptosis. The proportion of IAPs and proteins which interfere with their activity, such as the encoded protein, affect the progress of the apoptosis signaling pathway. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Feb 2012]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.03884703).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
XAF1NM_017523.5 linkuse as main transcriptc.62C>G p.Thr21Ser missense_variant 2/7 ENST00000361842.8 NP_059993.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
XAF1ENST00000361842.8 linkuse as main transcriptc.62C>G p.Thr21Ser missense_variant 2/71 NM_017523.5 ENSP00000354822 P1Q6GPH4-1

Frequencies

GnomAD3 genomes
AF:
0.0000854
AC:
13
AN:
152226
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000724
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:
0.000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000477
AC:
12
AN:
251478
Hom.:
0
AF XY:
0.0000589
AC XY:
8
AN XY:
135910
show subpopulations
Gnomad AFR exome
AF:
0.000185
Gnomad AMR exome
AF:
0.00
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:
0.0000703
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.000119
AC:
174
AN:
1461892
Hom.:
0
Cov.:
30
AF XY:
0.000107
AC XY:
78
AN XY:
727246
show subpopulations
Gnomad4 AFR exome
AF:
0.000119
Gnomad4 AMR exome
AF:
0.00
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:
0.000148
Gnomad4 OTH exome
AF:
0.0000828
GnomAD4 genome
AF:
0.0000854
AC:
13
AN:
152226
Hom.:
0
Cov.:
32
AF XY:
0.0000672
AC XY:
5
AN XY:
74360
show subpopulations
Gnomad4 AFR
AF:
0.0000724
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:
0.000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000214
Hom.:
0
Bravo
AF:
0.0000869
ExAC
AF:
0.0000494
AC:
6
EpiCase
AF:
0.00
EpiControl
AF:
0.000119

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsSep 15, 2021The c.62C>G (p.T21S) alteration is located in exon 2 (coding exon 2) of the XAF1 gene. This alteration results from a C to G substitution at nucleotide position 62, causing the threonine (T) at amino acid position 21 to be replaced by a serine (S). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.11
BayesDel_addAF
Benign
-0.46
T
BayesDel_noAF
Benign
-0.62
CADD
Benign
0.81
DANN
Benign
0.72
DEOGEN2
Benign
0.065
T;.;T;.
Eigen
Benign
-1.4
Eigen_PC
Benign
-1.5
FATHMM_MKL
Benign
0.091
N
LIST_S2
Benign
0.42
T;T;T;T
M_CAP
Benign
0.0031
T
MetaRNN
Benign
0.039
T;T;T;T
MetaSVM
Benign
-0.96
T
MutationAssessor
Benign
1.1
.;L;L;.
MutationTaster
Benign
1.0
N;N;N;N
PrimateAI
Benign
0.27
T
PROVEAN
Benign
-1.3
.;N;N;.
REVEL
Benign
0.021
Sift
Benign
0.89
.;T;T;.
Sift4G
Benign
0.75
T;T;T;T
Polyphen
0.0030, 0.0080
.;B;B;.
Vest4
0.074, 0.065
MutPred
0.35
Gain of helix (P = 0.2059);Gain of helix (P = 0.2059);Gain of helix (P = 0.2059);Gain of helix (P = 0.2059);
MVP
0.030
MPC
0.11
ClinPred
0.020
T
GERP RS
-6.0
Varity_R
0.041
gMVP
0.10

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.080
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: rs775948199; hg19: chr17-6661437; API