rs794729166

Variant summary

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

The NM_000116.5(TAFAZZIN):​c.154G>A​(p.Glu52Lys) variant causes a missense change. The variant allele was found at a frequency of 0.0000116 in 1,206,405 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 5 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. E52Q) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000018 ( 0 hom., 0 hem., cov: 24)
Exomes 𝑓: 0.000011 ( 0 hom. 5 hem. )

Consequence

TAFAZZIN
NM_000116.5 missense

Scores

1
8
7

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:4

Conservation

PhyloP100: 4.03

Publications

1 publications found
Variant links:
Genes affected
TAFAZZIN (HGNC:11577): (tafazzin, phospholipid-lysophospholipid transacylase) This gene encodes a protein that is expressed at high levels in cardiac and skeletal muscle. Mutations in this gene have been associated with a number of clinical disorders including Barth syndrome, dilated cardiomyopathy (DCM), hypertrophic DCM, endocardial fibroelastosis, and left ventricular noncompaction (LVNC). Multiple transcript variants encoding different isoforms have been described. A long form and a short form of each of these isoforms is produced; the short form lacks a hydrophobic leader sequence and may exist as a cytoplasmic protein rather than being membrane-bound. Other alternatively spliced transcripts have been described but the full-length nature of all these transcripts is not known. [provided by RefSeq, Jul 2008]
DNASE1L1 (HGNC:2957): (deoxyribonuclease 1 like 1) This gene encodes a deoxyribonuclease protein that shows high sequence similarity to DNase I. The encoded protein is localized to the endoplasmic reticulum and modified by N-linked glycosylation. Alternate transcriptional splice variants encoding the same protein have been observed. [provided by RefSeq, Jan 2015]

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=0.28583455).
BS2
High Hemizygotes in GnomAdExome4 at 5 XL gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000116.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
TAFAZZIN
NM_000116.5
MANE Select
c.154G>Ap.Glu52Lys
missense
Exon 2 of 11NP_000107.1Q16635-1
TAFAZZIN
NM_001440856.1
c.208G>Ap.Glu70Lys
missense
Exon 2 of 11NP_001427785.1
TAFAZZIN
NM_001303465.2
c.208G>Ap.Glu70Lys
missense
Exon 2 of 10NP_001290394.1A6XNE1

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
TAFAZZIN
ENST00000601016.6
TSL:1 MANE Select
c.154G>Ap.Glu52Lys
missense
Exon 2 of 11ENSP00000469981.1Q16635-1
TAFAZZIN
ENST00000475699.6
TSL:1
c.208G>Ap.Glu70Lys
missense
Exon 2 of 10ENSP00000419854.3A0A499FJ53
TAFAZZIN
ENST00000612460.5
TSL:1
c.154G>Ap.Glu52Lys
missense
Exon 2 of 10ENSP00000481037.1Q16635-3

Frequencies

GnomAD3 genomes
AF:
0.0000178
AC:
2
AN:
112324
Hom.:
0
Cov.:
24
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:
0.0000377
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.00000580
AC:
1
AN:
172399
AF XY:
0.0000168
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 FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.000233
GnomAD4 exome
AF:
0.0000110
AC:
12
AN:
1094081
Hom.:
0
Cov.:
33
AF XY:
0.0000139
AC XY:
5
AN XY:
360163
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
26354
American (AMR)
AF:
0.00
AC:
0
AN:
34932
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
19282
East Asian (EAS)
AF:
0.00
AC:
0
AN:
30092
South Asian (SAS)
AF:
0.00
AC:
0
AN:
53427
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
39678
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
4132
European-Non Finnish (NFE)
AF:
0.0000143
AC:
12
AN:
840249
Other (OTH)
AF:
0.00
AC:
0
AN:
45935
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.511
Heterozygous variant carriers
0
1
2
2
3
4
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
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
GnomAD4 genome
AF:
0.0000178
AC:
2
AN:
112324
Hom.:
0
Cov.:
24
AF XY:
0.00
AC XY:
0
AN XY:
34476
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
30963
American (AMR)
AF:
0.00
AC:
0
AN:
10739
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
2652
East Asian (EAS)
AF:
0.00
AC:
0
AN:
3551
South Asian (SAS)
AF:
0.00
AC:
0
AN:
2710
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
6184
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
237
European-Non Finnish (NFE)
AF:
0.0000377
AC:
2
AN:
53093
Other (OTH)
AF:
0.00
AC:
0
AN:
1513
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
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:
0.0000704
Hom.:
1
Bravo
AF:
0.00000756

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
2
-
3-Methylglutaconic aciduria type 2 (2)
-
1
-
Caused by mutation in the tafazzin gene (1)
-
1
-
not provided (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.19
BayesDel_addAF
Uncertain
0.11
D
BayesDel_noAF
Uncertain
-0.080
CADD
Uncertain
25
DANN
Uncertain
1.0
DEOGEN2
Benign
0.35
T
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.94
D
M_CAP
Uncertain
0.24
D
MetaRNN
Benign
0.29
T
MetaSVM
Uncertain
0.11
D
MutationAssessor
Benign
0.79
N
PhyloP100
4.0
PrimateAI
Uncertain
0.67
T
PROVEAN
Benign
-0.84
N
REVEL
Uncertain
0.38
Sift
Benign
0.18
T
Sift4G
Benign
0.47
T
Polyphen
0.96
D
Vest4
0.30
MutPred
0.52
Gain of ubiquitination at E52 (P = 0.0337)
MVP
0.90
ClinPred
0.37
T
GERP RS
4.1
PromoterAI
-0.089
Neutral
Varity_R
0.40
gMVP
0.83
Mutation Taster
=82/18
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: rs794729166; hg19: chrX-153640467; COSMIC: COSV50010331; COSMIC: COSV50010331; API