X-103776802-C-T

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_ModerateBP6_ModerateBS1BS2

The NM_001128834.3(PLP1):​c.-143-51C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000356 in 460,364 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 87 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 0.000090 ( 0 hom., 4 hem., cov: 22)
Exomes 𝑓: 0.00044 ( 0 hom. 83 hem. )

Consequence

PLP1
NM_001128834.3 intron

Scores

2

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 3.05
Variant links:
Genes affected
PLP1 (HGNC:9086): (proteolipid protein 1) This gene encodes a transmembrane proteolipid protein that is the predominant component of myelin. The encoded protein may play a role in the compaction, stabilization, and maintenance of myelin sheaths, as well as in oligodendrocyte development and axonal survival. Mutations in this gene cause Pelizaeus-Merzbacher disease and spastic paraplegia type 2. Alternatively splicing results in multiple transcript variants, including the DM20 splice variant. [provided by RefSeq, Feb 2015]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -12 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.23).
BP6
Variant X-103776802-C-T is Benign according to our data. Variant chrX-103776802-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 2661103.Status of the report is criteria_provided_single_submitter, 1 stars.
BS1
Variant frequency is greater than expected in population sas. gnomad4 allele frequency = 0.0000898 (10/111402) while in subpopulation SAS AF= 0.00192 (5/2608). AF 95% confidence interval is 0.000755. There are 0 homozygotes in gnomad4. There are 4 alleles in male gnomad4 subpopulation. Median coverage is 22. This position pass quality control queck.
BS2
High Hemizygotes in GnomAd4 at 4 XL gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
PLP1NM_000533.5 linkuse as main transcript upstream_gene_variant ENST00000621218.5

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
PLP1ENST00000621218.5 linkuse as main transcript upstream_gene_variant 1 NM_000533.5 P1P60201-1

Frequencies

GnomAD3 genomes
AF:
0.0000898
AC:
10
AN:
111352
Hom.:
0
Cov.:
22
AF XY:
0.000119
AC XY:
4
AN XY:
33566
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000948
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00191
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000755
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.000441
AC:
154
AN:
348962
Hom.:
0
Cov.:
4
AF XY:
0.000725
AC XY:
83
AN XY:
114408
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000667
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00449
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.000133
Gnomad4 OTH exome
AF:
0.000396
GnomAD4 genome
AF:
0.0000898
AC:
10
AN:
111402
Hom.:
0
Cov.:
22
AF XY:
0.000119
AC XY:
4
AN XY:
33626
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.0000947
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00192
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000755
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.000102

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 testingCeGaT Center for Human Genetics TuebingenJan 01, 2023PLP1: BS2 -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.23
CADD
Benign
19
DANN
Benign
0.78

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: rs192952647; hg19: chrX-103031730; API