dbSNP rs886038308: PLP1:c.622+15G>A (chrX-103787981-G-A) – ACMG Classification: Benign (-16 pts)

Variant summary

Our verdict is Benign. The variant received -16 ACMG points: 0P and 16B. BP4_StrongBP6_Very_StrongBS2

The NM_000533.5(PLP1):c.622+15G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000507 in 1,184,336 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 3 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 0.0000089 ( 0 hom., 0 hem., cov: 23)

Exomes 𝑓: 0.0000047 ( 0 hom. 3 hem. )

Consequence

PLP1
NM_000533.5 intron

Scores

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: -0.541

Publications

0 publications found

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]

PLP1 links:

ENSG00000288597 (HGNC:):

ENSG00000288597 links:

RAB9B (HGNC:14090): (RAB9B, member RAS oncogene family) This gene encodes a member of a subfamily of RAS small guanosine triphosphate (GTP)-binding proteins that regulate membrane trafficking. The encoded protein may be involved in endosome-to-Golgi transport. [provided by RefSeq, Jan 2010]

RAB9B links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -16 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.87).

BP6

Variant X-103787981-G-A is Benign according to our data. Variant chrX-103787981-G-A is described in ClinVar as Likely_benign. ClinVar VariationId is 256377.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS2

High Hemizygotes in GnomAdExome4 at 3 XL gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PLP1	NM_000533.5 link	c.622+15G>A		intron_variant	Intron 4 of 6	ENST00000621218.5	NP_000524.3	P60201-1A8K9L3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PLP1	ENST00000621218.5 link	c.622+15G>A		intron_variant	Intron 4 of 6	1	NM_000533.5	ENSP00000484450.1		P60201-1

Frequencies

GnomAD3 genomes

AF:

0.00000893

AC:

AN:

111967

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000325

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.00000547

AC:

AN:

182918

AF XY:

0.0000148

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:

0.0000630

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000466

AC:

AN:

1072369

Hom.:

Cov.:

AF XY:

0.00000885

AC XY:

AN XY:

339001

show subpopulations

African (AFR)

AF:

0.0000385

AC:

AN:

25969

American (AMR)

AF:

0.00

AC:

AN:

35187

Ashkenazi Jewish (ASJ)

AF:

0.0000520

AC:

AN:

19234

East Asian (EAS)

AF:

0.00

AC:

AN:

30112

South Asian (SAS)

AF:

0.0000187

AC:

AN:

53617

European-Finnish (FIN)

AF:

0.0000247

AC:

AN:

40422

Middle Eastern (MID)

AF:

0.00

AC:

AN:

4009

European-Non Finnish (NFE)

AF:

0.00000122

AC:

AN:

818561

Other (OTH)

AF:

0.00

AC:

AN:

45258

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

<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:

0.00000893

AC:

AN:

111967

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

34153

show subpopulations

African (AFR)

AF:

0.0000325

AC:

AN:

30777

American (AMR)

AF:

0.00

AC:

AN:

10571

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

2637

East Asian (EAS)

AF:

0.00

AC:

AN:

3584

South Asian (SAS)

AF:

0.00

AC:

AN:

2691

European-Finnish (FIN)

AF:

0.00

AC:

AN:

6105

Middle Eastern (MID)

AF:

0.00

AC:

AN:

238

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

53168

Other (OTH)

AF:

0.00

AC:

AN:

1508

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<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:

0.00

Hom.:

Bravo

AF:

0.00000756

ClinVar

Significance: Likely benign

Submissions summary: Benign:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:1

PreventionGenetics, part of Exact Sciences

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Hereditary spastic paraplegia 2

Benign:1

Oct 26, 2023

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.87

CADD

Benign

1.4

(source)

DANN

Benign

0.45

PhyloP100

-0.54

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over