chr7-37894544-T-A

Position:

• chr7-37894544-T-A

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_016616.5(NME8):​c.1478T>A​(p.Ile493Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. 13/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. I493T) has been classified as Benign.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: NME8 NM_016616.5 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.0760

Genes affected

NME8 (HGNC:16473): (NME/NM23 family member 8) This gene encodes a protein with an N-terminal thioredoxin domain and three C-terminal nucleoside diphosphate kinase (NDK) domains, but the NDK domains are thought to be catalytically inactive. The sea urchin ortholog of this gene encodes a component of sperm outer dynein arms, and the protein is implicated in ciliary function. Mutations in this gene are implicated in primary ciliary dyskinesia type 6.[provided by RefSeq, Nov 2009]

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
NME8	NM_016616.5	c.1478T>A	p.Ile493Lys	missense_variant	16/18	ENST00000199447.9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
NME8	ENST00000199447.9	c.1478T>A	p.Ile493Lys	missense_variant	16/18	1	NM_016616.5	P1
NME8	ENST00000440017.5	c.1478T>A	p.Ile493Lys	missense_variant	15/16	1		P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 1457728 Hom.: 0 Cov.: 34 AF XY: 0.00 AC XY: 0 AN XY: 725426

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.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.49
BayesDel_addAF	Benign	-0.097	T
BayesDel_noAF	Benign	-0.38
CADD	Benign	8.7
DANN	Benign	0.77
DEOGEN2	Benign	0.043	T;T
Eigen	Benign	-1.1
Eigen_PC	Benign	-1.2
FATHMM_MKL	Benign	0.036	N
LIST_S2	Benign	0.35	.;T
M_CAP	Benign	0.021	T
MetaRNN	Uncertain	0.46	T;T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	0.55	N;N
MutationTaster	Benign	1.0	N;N;N
PrimateAI	Benign	0.37	T
PROVEAN	Benign	-0.47	N;N
REVEL	Benign	0.22
Sift	Uncertain	0.0070	D;D
Sift4G	Uncertain	0.0090	D;D
Polyphen		0.050	B;B
Vest4		0.59
MutPred		0.63		Gain of disorder (P = 0.0032);Gain of disorder (P = 0.0032);
MVP		0.20
MPC		0.033
ClinPred		0.12	T
GERP RS		1.1
Varity_R		0.17
gMVP		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: rs56128139; hg19: chr7-37934146;