Genetic Variant MSL3:p.Ser128Ser (chrX-11761501-A-G) – ACMG Classification: Benign (-11 pts)

Variant summary

Our verdict is Benign. Variant got -11 ACMG points: 0P and 11B. BP4_StrongBP6_ModerateBP7BS2

The NM_078629.4(MSL3):c.384A>G(p.Ser128Ser) variant causes a splice region, synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000841 in 1,189,679 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. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.000018 ( 0 hom., 1 hem., cov: 24)

Exomes 𝑓: 0.0000074 ( 0 hom. 2 hem. )

Consequence

MSL3
NM_078629.4 splice_region, synonymous

Scores

Splicing: ADA: 0.00005466

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.461

Variant links:

Genes affected

MSL3 (HGNC:7370): (MSL complex subunit 3) This gene encodes a nuclear protein that is similar to the product of the Drosophila male-specific lethal-3 gene. The Drosophila protein plays a critical role in a dosage-compensation pathway, which equalizes X-linked gene expression in males and females. Thus, the human protein is thought to play a similar function in chromatin remodeling and transcriptional regulation, and it has been found as part of a complex that is responsible for histone H4 lysine-16 acetylation. This gene can undergo X inactivation. Alternative splicing results in multiple transcript variants. Related pseudogenes have been identified on chromosomes 2, 7 and 8. [provided by RefSeq, Jul 2010]

MSL3 links:

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -11 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.66).

BP6

Variant X-11761501-A-G is Benign according to our data. Variant chrX-11761501-A-G is described in ClinVar as [Likely_benign]. Clinvar id is 1335752.Status of the report is criteria_provided_single_submitter, 1 stars.

BP7

Synonymous conserved (PhyloP=0.461 with no splicing effect.

BS2

High Hemizygotes in GnomAdExome4 at 2 XL gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MSL3	NM_078629.4 link	c.384A>G	p.Ser128Ser	splice_region_variant, synonymous_variant	Exon 5 of 13	ENST00000312196.10	NP_523353.2	Q8N5Y2-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MSL3	ENST00000312196.10 link	c.384A>G	p.Ser128Ser	splice_region_variant, synonymous_variant	Exon 5 of 13	1	NM_078629.4	ENSP00000312244.4		Q8N5Y2-1

Frequencies

GnomAD3 genomes

AF:

0.0000178

AC:

AN:

112656

Hom.:

Cov.:

AF XY:

0.0000287

AC XY:

AN XY:

34798

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:

0.0000375

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000297

AC:

AN:

168137

Hom.:

AF XY:

0.0000546

AC XY:

AN XY:

54987

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000423

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:

0.0000516

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000743

AC:

AN:

1077023

Hom.:

Cov.:

AF XY:

0.00000579

AC XY:

AN XY:

345701

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000304

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:

0.00000844

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000178

AC:

AN:

112656

Hom.:

Cov.:

AF XY:

0.0000287

AC XY:

AN XY:

34798

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:

0.0000375

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.00000378

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Benign:1

Dec 01, 2021

CeGaT Center for Human Genetics Tuebingen

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

-0.66

CADD

Benign

7.8

DANN

Benign

0.39

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.000055

dbscSNV1_RF

Benign

0.0080

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over