X-21843311-T-A

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_ModerateBP6_ModerateBS2

The NM_015884.4(MBTPS2):​c.217T>A​(p.Tyr73Asn) variant causes a missense change. The variant allele was found at a frequency of 0.0000645 in 1,208,872 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 32 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. Y73C) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0000089 ( 0 hom., 0 hem., cov: 23)
Exomes 𝑓: 0.000070 ( 0 hom. 32 hem. )

Consequence

MBTPS2
NM_015884.4 missense

Scores

4
5
8

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: 5.98
Variant links:
Genes affected
MBTPS2 (HGNC:15455): (membrane bound transcription factor peptidase, site 2) This gene encodes a intramembrane zinc metalloprotease, which is essential in development. This protease functions in the signal protein activation involved in sterol control of transcription and the ER stress response. Mutations in this gene have been associated with ichthyosis follicularis with atrichia and photophobia (IFAP syndrome); IFAP syndrome has been quantitatively linked to a reduction in cholesterol homeostasis and ER stress response.[provided by RefSeq, Aug 2009]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.18895727).
BP6
Variant X-21843311-T-A is Benign according to our data. Variant chrX-21843311-T-A is described in ClinVar as [Benign]. Clinvar id is 1601559.Status of the report is criteria_provided_single_submitter, 1 stars.
BS2
High Hemizygotes in GnomAdExome4 at 32 XL gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MBTPS2NM_015884.4 linkuse as main transcriptc.217T>A p.Tyr73Asn missense_variant 2/11 ENST00000379484.10

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MBTPS2ENST00000379484.10 linkuse as main transcriptc.217T>A p.Tyr73Asn missense_variant 2/111 NM_015884.4 P1
MBTPS2ENST00000365779.2 linkuse as main transcriptc.217T>A p.Tyr73Asn missense_variant 2/71
MBTPS2ENST00000465888.1 linkuse as main transcriptn.316T>A non_coding_transcript_exon_variant 2/62

Frequencies

GnomAD3 genomes
AF:
0.00000891
AC:
1
AN:
112178
Hom.:
0
Cov.:
23
AF XY:
0.00
AC XY:
0
AN XY:
34318
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:
0.0000188
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000709
AC:
13
AN:
183385
Hom.:
0
AF XY:
0.000103
AC XY:
7
AN XY:
67827
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:
0.000577
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000244
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000702
AC:
77
AN:
1096694
Hom.:
0
Cov.:
30
AF XY:
0.0000884
AC XY:
32
AN XY:
362068
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:
0.0000393
Gnomad4 OTH exome
AF:
0.0000652
GnomAD4 genome
AF:
0.00000891
AC:
1
AN:
112178
Hom.:
0
Cov.:
23
AF XY:
0.00
AC XY:
0
AN XY:
34318
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:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000188
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000868
Hom.:
1
Bravo
AF:
0.0000378
ExAC
AF:
0.0000659
AC:
8
EpiCase
AF:
0.00
EpiControl
AF:
0.000119

ClinVar

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

Submissions by phenotype

not provided Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 17, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.36
BayesDel_addAF
Pathogenic
0.19
D
BayesDel_noAF
Pathogenic
0.39
CADD
Benign
23
DANN
Benign
0.88
DEOGEN2
Benign
0.048
T;T
FATHMM_MKL
Pathogenic
0.97
D
LIST_S2
Benign
0.86
D;D
M_CAP
Pathogenic
0.29
D
MetaRNN
Benign
0.19
T;T
MetaSVM
Uncertain
0.22
D
MutationAssessor
Benign
1.9
L;.
MutationTaster
Benign
1.0
D;D
PrimateAI
Uncertain
0.77
T
PROVEAN
Benign
-0.51
N;N
REVEL
Uncertain
0.54
Sift
Benign
0.30
T;T
Sift4G
Uncertain
0.046
D;T
Polyphen
0.085
B;B
Vest4
0.42
MVP
1.0
MPC
1.0
ClinPred
0.085
T
GERP RS
5.0
Varity_R
0.23
gMVP
0.94

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: rs752875393; hg19: chrX-21861429; API