X-65534617-C-T

Variant names:

• chrX-65534617-C-T
• rs779407196
• NM_031206.7:c.99G>A

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM2 BP4_Strong BP7

The NM_031206.7(LAS1L):​c.99G>A​(p.Ser33Ser) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 23)
• Consequence: LAS1L NM_031206.7 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.0650

Genes affected

LAS1L (HGNC:25726): (LAS1 like ribosome biogenesis factor) Enables RNA binding activity. Predicted to be involved in maturation of 5.8S rRNA and maturation of LSU-rRNA. Located in membrane. Part of MLL1 complex. Implicated in Wilson-Turner syndrome. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Verdict is Likely_benign. Variant got -3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.63).
• BP7: Synonymous conserved (PhyloP=0.065 with no splicing effect.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
LAS1L	NM_031206.7	c.99G>A	p.Ser33Ser	synonymous_variant	Exon 1 of 14	ENST00000374811.8	NP_112483.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
LAS1L	ENST00000374811.8	c.99G>A	p.Ser33Ser	synonymous_variant	Exon 1 of 14	1	NM_031206.7	ENSP00000363944.3

Frequencies

GnomAD3 genomes Cov.: 23

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 23

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.63
CADD	Benign	7.0
DANN	Benign	0.82
RBP_binding_hub_radar		0.92
RBP_regulation_power_radar		2.0

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

Other links and lift over

dbSNP: rs779407196; hg19: chrX-64754497;