6-116108400-C-A

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2 BP4

The NM_152729.3(NT5DC1):c.222C>A(p.Asn74Lys) 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 benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: NT5DC1 NM_152729.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.775

Genes affected

NT5DC1 (HGNC:21556): (5'-nucleotidase domain containing 1) While the exact function of the protein encoded by this gene is not known, it belongs to the 5'(3')-deoxyribonucleotidase family. [provided by RefSeq, May 2010]

ACMG classification

Verdict is Uncertain_significance. Variant got 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.33492732).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
NT5DC1	NM_152729.3	c.222C>A	p.Asn74Lys	missense_variant	3/12	ENST00000319550.9
NT5DC1	XM_006715378.4	c.222C>A	p.Asn74Lys	missense_variant	3/10

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
NT5DC1	ENST00000319550.9	c.222C>A	p.Asn74Lys	missense_variant	3/12	1	NM_152729.3	P1
NT5DC1	ENST00000419791.3	c.222C>A	p.Asn74Lys	missense_variant	3/7	3

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 1457460 Hom.: 0 Cov.: 27 AF XY: 0.00 AC XY: 0 AN XY: 725460

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

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jan 03, 2024

The c.222C>A (p.N74K) alteration is located in exon 3 (coding exon 3) of the NT5DC1 gene. This alteration results from a C to A substitution at nucleotide position 222, causing the asparagine (N) at amino acid position 74 to be replaced by a lysine (K). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.52
BayesDel_addAF	Benign	-0.13	T
BayesDel_noAF	Benign	-0.42
Cadd	Benign	20
Dann	Uncertain	0.99
DEOGEN2	Benign	0.24	T;T
Eigen	Benign	-0.29
Eigen_PC	Benign	-0.23
FATHMM_MKL	Uncertain	0.91	D
LIST_S2	Benign	0.85	T;T
M_CAP	Benign	0.0060	T
MetaRNN	Benign	0.33	T;T
MetaSVM	Benign	-1.1	T
MutationAssessor	Uncertain	2.5	M;.
MutationTaster	Benign	0.98	D
PrimateAI	Benign	0.40	T
PROVEAN	Pathogenic	-4.6	D;D
REVEL	Benign	0.16
Sift	Uncertain	0.016	D;D
Sift4G	Uncertain	0.016	D;D
Polyphen		0.035	B;.
Vest4		0.55
MutPred		0.55		Gain of ubiquitination at N74 (P = 0.0258);Gain of ubiquitination at N74 (P = 0.0258);
MVP		0.43
MPC		0.18
ClinPred		0.93	D
GERP RS		2.4
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.31
gMVP		0.93

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr6-116429563;