X-41447942-G-T

Position:

• chrX-41447942-G-T

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 0P and 10B. BP4_Strong BP6_Moderate BS2

The NM_001378477.3(NYX):​c.22+16G>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000548 in 1,094,397 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: not found (cov: 23)
  • Exomes 𝑓: 0.0000055 (0 hom. 3 hem.)
• Consequence: NYX NM_001378477.3 intron
• Clinical Significance: Likely benign criteria provided, single submitter B:1
• Conservation: PhyloP100: -0.666

Genes affected

NYX (HGNC:8082): (nyctalopin) The product of this gene belongs to the small leucine-rich proteoglycan (SLRP) family of proteins. Defects in this gene are the cause of congenital stationary night blindness type 1 (CSNB1), also called X-linked congenital stationary night blindness (XLCSNB). CSNB1 is a rare inherited retinal disorder characterized by impaired scotopic vision, myopia, hyperopia, nystagmus and reduced visual acuity. The role of other SLRP proteins suggests that mutations in this gene disrupt developing retinal interconnections involving the ON-bipolar cells, leading to the visual losses seen in patients with complete CSNB. [provided by RefSeq, Oct 2008]

ACMG classification

Verdict is Benign. Variant got -10 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.9).
• BP6: Variant X-41447942-G-T is Benign according to our data. Variant chrX-41447942-G-T is described in ClinVar as [Likely_benign]. Clinvar id is 1897499.Status of the report is criteria_provided_single_submitter, 1 stars.
• BS2: High Hemizygotes in GnomAdExome4 at 3 XL gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
NYX	NM_001378477.3	c.22+16G>T		intron_variant		ENST00000378220.3	NP_001365406.2
NYX	NM_022567.3	c.22+16G>T		intron_variant			NP_072089.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
NYX	ENST00000378220.3	c.22+16G>T		intron_variant		1	NM_001378477.3	ENSP00000367465.2
NYX	ENST00000342595.3	c.22+16G>T		intron_variant		1		ENSP00000340328.3

Frequencies

GnomAD3 genomes Cov.: 23

GnomAD3 exomes AF: 0.0000336 AC: 6 AN: 178653 Hom.: 0 AF XY: 0.0000469 AC XY: 3 AN XY: 63931

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.000184

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: 0.00

Gnomad OTH exome AF: 0.000226

GnomAD4 exome AF: 0.00000548 AC: 6 AN: 1094397 Hom.: 0 Cov.: 29 AF XY: 0.00000834 AC XY: 3 AN XY: 359871

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.000171

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: 0.00

GnomAD4 genome Cov.: 23

Bravo AF: 0.0000189

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Sep 09, 2022

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.90
CADD	Benign	0.091
DANN	Benign	0.58

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: rs3810732; hg19: chrX-41307195;