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GeneBe

X-21843225-G-C

Variant summary

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

The NM_015884.4(MBTPS2):ā€‹c.131G>Cā€‹(p.Ser44Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000011 in 1,095,503 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 2 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (ā˜…).

Frequency

Genomes: not found (cov: 24)
Exomes š‘“: 0.000011 ( 0 hom. 2 hem. )

Consequence

MBTPS2
NM_015884.4 missense

Scores

3
14

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 2.65
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=0.082437426).
BP6
Variant X-21843225-G-C is Benign according to our data. Variant chrX-21843225-G-C is described in ClinVar as [Likely_benign]. Clinvar id is 3293581.Status of the report is criteria_provided_single_submitter, 1 stars.
BS2
High Hemizygotes in GnomAdExome4 at 2 XL gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MBTPS2NM_015884.4 linkuse as main transcriptc.131G>C p.Ser44Thr missense_variant 2/11 ENST00000379484.10

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MBTPS2ENST00000379484.10 linkuse as main transcriptc.131G>C p.Ser44Thr missense_variant 2/111 NM_015884.4 P1
MBTPS2ENST00000365779.2 linkuse as main transcriptc.131G>C p.Ser44Thr missense_variant 2/71
MBTPS2ENST00000465888.1 linkuse as main transcriptn.230G>C non_coding_transcript_exon_variant 2/62

Frequencies

GnomAD3 genomes
Cov.:
24
GnomAD3 exomes
AF:
0.0000218
AC:
4
AN:
183511
Hom.:
0
AF XY:
0.0000147
AC XY:
1
AN XY:
67943
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000216
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000122
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000110
AC:
12
AN:
1095503
Hom.:
0
Cov.:
29
AF XY:
0.00000554
AC XY:
2
AN XY:
360899
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000994
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000107
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
24
ExAC
AF:
0.0000165
AC:
2

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.084
BayesDel_addAF
Benign
-0.29
T
BayesDel_noAF
Benign
-0.37
CADD
Benign
18
DANN
Benign
0.84
DEOGEN2
Benign
0.029
T;T
FATHMM_MKL
Uncertain
0.82
D
LIST_S2
Benign
0.71
T;T
M_CAP
Benign
0.049
D
MetaRNN
Benign
0.082
T;T
MetaSVM
Uncertain
-0.14
T
MutationAssessor
Benign
1.1
L;.
MutationTaster
Benign
0.98
D;D
PrimateAI
Uncertain
0.53
T
PROVEAN
Benign
-0.50
N;N
REVEL
Benign
0.24
Sift
Benign
0.89
T;T
Sift4G
Benign
0.66
T;T
Polyphen
0.010
B;B
Vest4
0.13
MutPred
0.54
Gain of sheet (P = 0.0344);Gain of sheet (P = 0.0344);
MVP
0.50
MPC
0.59
ClinPred
0.044
T
GERP RS
4.6
Varity_R
0.15
gMVP
0.58

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
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: rs745538305; hg19: chrX-21861343; API