X-21839788-C-T

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 0P and 5B. BP4_ModerateBP6_ModerateBP7

The NM_015884.4(MBTPS2):​c.54C>T​(p.Tyr18=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000067 in 1,194,708 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. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.000018 ( 0 hom., 1 hem., cov: 23)
Exomes 𝑓: 0.0000055 ( 0 hom. 1 hem. )

Consequence

MBTPS2
NM_015884.4 synonymous

Scores

2

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 3.02
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 Likely_benign. Variant got -5 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.42).
BP6
Variant X-21839788-C-T is Benign according to our data. Variant chrX-21839788-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 2075970.Status of the report is criteria_provided_single_submitter, 1 stars.
BP7
Synonymous conserved (PhyloP=3.02 with no splicing effect.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MBTPS2NM_015884.4 linkuse as main transcriptc.54C>T p.Tyr18= synonymous_variant 1/11 ENST00000379484.10

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MBTPS2ENST00000379484.10 linkuse as main transcriptc.54C>T p.Tyr18= synonymous_variant 1/111 NM_015884.4 P1
MBTPS2ENST00000365779.2 linkuse as main transcriptc.54C>T p.Tyr18= synonymous_variant 1/71
MBTPS2ENST00000465888.1 linkuse as main transcriptn.153C>T non_coding_transcript_exon_variant 1/62

Frequencies

GnomAD3 genomes
AF:
0.0000179
AC:
2
AN:
111807
Hom.:
0
Cov.:
23
AF XY:
0.0000294
AC XY:
1
AN XY:
34015
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000188
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:
0.0000470
AC:
7
AN:
148881
Hom.:
0
AF XY:
0.0000218
AC XY:
1
AN XY:
45851
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000203
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:
0.0000161
Gnomad OTH exome
AF:
0.000258
GnomAD4 exome
AF:
0.00000554
AC:
6
AN:
1082901
Hom.:
0
Cov.:
31
AF XY:
0.00000283
AC XY:
1
AN XY:
353361
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.000151
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:
0.00
Gnomad4 OTH exome
AF:
0.0000220
GnomAD4 genome
AF:
0.0000179
AC:
2
AN:
111807
Hom.:
0
Cov.:
23
AF XY:
0.0000294
AC XY:
1
AN XY:
34015
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.000188
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:
0.0000189

ClinVar

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

Submissions by phenotype

not provided Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpSep 27, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.42
CADD
Benign
12
DANN
Benign
0.95
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.6

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs770669278; hg19: chrX-21857906; API