Genetic Variant NCBP3:p.Asp403Asn (chr17-3818366-C-T) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

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

The NM_001114118.3(NCBP3):c.1207G>A(p.Asp403Asn) variant causes a missense change. The variant allele was found at a frequency of 0.0000438 in 1,461,882 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.000044 ( 0 hom. )

Consequence

NCBP3
NM_001114118.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.08

Variant links:

Genes affected

NCBP3 (HGNC:24612): (nuclear cap binding subunit 3) Enables RNA 7-methylguanosine cap binding activity and mRNA binding activity. Involved in defense response to virus. Located in cytoplasm and nuclear speck. [provided by Alliance of Genome Resources, Apr 2022]

NCBP3 links:

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ACMG classification

Classification made for transcript

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 rank	MANE	Protein	UniProt
NCBP3	NM_001114118.3 link	c.1207G>A	p.Asp403Asn	missense_variant	Exon 10 of 13	ENST00000389005.6	NP_001107590.1	Q53F19-1
NCBP3	NM_001398494.1 link	c.1207G>A	p.Asp403Asn	missense_variant	Exon 10 of 14		NP_001385423.1
NCBP3	XR_007065313.1 link	n.1230G>A		non_coding_transcript_exon_variant	Exon 10 of 15

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
NCBP3	ENST00000389005.6 link	c.1207G>A	p.Asp403Asn	missense_variant	Exon 10 of 13	5	NM_001114118.3	ENSP00000373657.4		Q53F19-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000795

AC:

AN:

251450

Hom.:

AF XY:

0.00000736

AC XY:

AN XY:

135900

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

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:

0.0000176

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000438

AC:

AN:

1461882

Hom.:

Cov.:

AF XY:

0.0000413

AC XY:

AN XY:

727246

show subpopulations

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:

0.0000567

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

Cov.:

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.000259

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jan 16, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.1207G>A (p.D403N) alteration is located in exon 10 (coding exon 10) of the NCBP3 gene. This alteration results from a G to A substitution at nucleotide position 1207, causing the aspartic acid (D) at amino acid position 403 to be replaced by an asparagine (N). 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

Pathogenic

0.97

BayesDel_addAF

Benign

-0.045

BayesDel_noAF

Benign

-0.29

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.026

Eigen

Pathogenic

0.76

Eigen_PC

Pathogenic

0.80

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.95

M_CAP

Benign

0.012

MetaRNN

Uncertain

0.69

MetaSVM

Benign

-0.51

PROVEAN

Benign

-0.75

REVEL

Benign

0.16

Sift

Pathogenic

0.0

Sift4G

Uncertain

0.017

Polyphen

1.0

Vest4

0.85

MutPred

0.21

Gain of sheet (P = 0.039);

MVP

0.28

MPC

1.6

ClinPred

0.75

GERP RS

5.8

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.48

gMVP

0.43

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

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over