17-46694577-C-T

Variant names:

• chr17-46694577-C-T
• rs1568034157
• NM_006178.4:c.1289C>T

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2 PP3_Strong

The NM_006178.4(NSF):​c.1289C>T​(p.Ala430Val) variant causes a missense change involving the alteration of a 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 not provided (no stars).

• Frequency:
  • Genomes: not found (cov: 22)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: NSF NM_006178.4 missense
• Clinical Significance: not provided no classification provided O:1
• Conservation: PhyloP100: 7.89

Genes affected

NSF (HGNC:8016): (N-ethylmaleimide sensitive factor, vesicle fusing ATPase) Enables PDZ domain binding activity and ionotropic glutamate receptor binding activity. Involved in intracellular protein transport; positive regulation of protein catabolic process; and positive regulation of receptor recycling. Located in Golgi apparatus; cytosol; and plasma membrane. Implicated in developmental and epileptic encephalopathy. [provided by Alliance of Genome Resources, Apr 2022]

LRRC37A2 (HGNC:32404): (leucine rich repeat containing 37 member A2) Predicted to be integral component of membrane. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.967

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
NSF	NM_006178.4	c.1289C>T	p.Ala430Val	missense_variant	Exon 12 of 21	ENST00000398238.8	NP_006169.2
LRRC37A2	XM_024450773.2	c.4809+144058C>T		intron_variant	Intron 10 of 10		XP_024306541.1
NSF	NR_040116.2	n.1356C>T		non_coding_transcript_exon_variant	Exon 11 of 20

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
NSF	ENST00000398238.8	c.1289C>T	p.Ala430Val	missense_variant	Exon 12 of 21	1	NM_006178.4	ENSP00000381293.4

Frequencies

GnomAD3 genomes Cov.: 22

GnomAD4 exome Data not reliable, filtered out with message: AC0;AS_VQSR AF: 0.00 AC: 0 AN: 1269354 Hom.: 0 Cov.: 19 AF XY: 0.00 AC XY: 0 AN XY: 634090

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.: 22

ClinVar

Significance: not provided

Submissions summary: Other:1

Revision: no classification provided

Submissions by phenotype

not provided Other:1

-

GenomeConnect, ClinGen

Significance: not provided

Review Status: no classification provided

Collection Method: phenotyping only

GenomeConnect assertions are reported exactly as they appear on the patient-provided report from the testing laboratory. GenomeConnect staff make no attempt to reinterpret the clinical significance of the variant. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.60
BayesDel_addAF	Pathogenic	0.44	D
BayesDel_noAF	Pathogenic	0.40
CADD	Pathogenic	26
DANN	Uncertain	1.0
DEOGEN2	Uncertain	0.44	T;T
Eigen	Uncertain	0.43
Eigen_PC	Uncertain	0.34
FATHMM_MKL	Pathogenic	0.99	D
M_CAP	Uncertain	0.27	D
MetaRNN	Pathogenic	0.97	D;D
MetaSVM	Pathogenic	0.98	D
MutationAssessor	Pathogenic	3.0	M;.
PrimateAI	Uncertain	0.74	T
PROVEAN	Uncertain	-3.4	D;.
REVEL	Pathogenic	0.88
Sift	Uncertain	0.0010	D;.
Sift4G	Uncertain	0.0020	D;D
Polyphen		0.98	D;.
Vest4		0.78
MutPred		0.84		Loss of ubiquitination at K434 (P = 0.0771);.;
MVP		0.96
MPC		2.4
ClinPred		0.99	D
GERP RS		3.9
Varity_R		0.70
gMVP		0.94

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: rs1568034157; hg19: chr17-44771943;