rs104894910

Positions:

• chrX-41473734-G-C

Variant summary

Our verdict is Uncertain significance. Variant got 5 ACMG points: 5P and 0B. PM2 PP3_Moderate PP5

The NM_001378477.3(NYX):​c.266G>C​(p.Arg89Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (no stars).

• Frequency:
  • Genomes: not found (cov: 23)
  • Exomes 𝑓: 0.0 (0 hom. 0 hem.)
  • Failed GnomAD Quality Control
• Consequence: NYX NM_001378477.3 missense
• Clinical Significance: Pathogenic no assertion criteria provided P:1
• Conservation: PhyloP100: 2.75

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 Uncertain_significance. Variant got 5 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.869
• PP5: Variant X-41473734-G-C is Pathogenic according to our data. Variant chrX-41473734-G-C is described in ClinVar as [Pathogenic]. Clinvar id is 11424.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
NYX	NM_001378477.3	c.266G>C	p.Arg89Pro	missense_variant	3/3	ENST00000378220.3	NP_001365406.2
NYX	NM_022567.3	c.266G>C	p.Arg89Pro	missense_variant	2/2		NP_072089.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
NYX	ENST00000378220.3	c.266G>C	p.Arg89Pro	missense_variant	3/3	1	NM_001378477.3	ENSP00000367465	P1
NYX	ENST00000342595.3	c.266G>C	p.Arg89Pro	missense_variant	2/2	1		ENSP00000340328	P1
NYX	ENST00000486842.1			downstream_gene_variant		3

Frequencies

GnomAD3 genomes Cov.: 23

GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 1045231 Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0 AN XY: 338291

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

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

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:1

Revision: no assertion criteria provided

Submissions by phenotype

Congenital stationary night blindness 1A Pathogenic:1

Pathogenic, no assertion criteria provided

literature only

OMIM

Jan 01, 2006

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.49
BayesDel_addAF	Pathogenic	0.25	D
BayesDel_noAF	Uncertain	0.12
CADD	Pathogenic	26
DANN	Uncertain	0.99
DEOGEN2	Benign	0.16	T;T
FATHMM_MKL	Uncertain	0.93	D
LIST_S2	Benign	0.82	.;T
M_CAP	Pathogenic	0.74	D
MetaRNN	Pathogenic	0.87	D;D
MetaSVM	Benign	-0.53	T
MutationAssessor	Benign	1.7	L;L
MutationTaster	Benign	0.71	A;A
PrimateAI	Pathogenic	0.83	D
PROVEAN	Benign	-1.0	N;N
REVEL	Benign	0.28
Sift	Benign	0.12	T;T
Sift4G	Benign	0.19	T;T
Polyphen		0.98	D;D
Vest4		0.47
MutPred		0.83		Loss of MoRF binding (P = 0.025);Loss of MoRF binding (P = 0.025);
MVP		0.99
MPC		2.1
ClinPred		0.81	D
GERP RS		4.1
Varity_R		0.76
gMVP		0.83

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: rs104894910; hg19: chrX-41332987;