Variant chr1-16587065-C-G details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BP4_Strong

The NM_001405667.2(NBPF1):c.763G>C(p.Val255Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00008 in 150,090 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 8/10 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000080 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000015 ( 1 hom. )

Failed GnomAD Quality Control

Consequence

NBPF1
NM_001405667.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.906

Variant links:

Genes affected

NBPF1 (HGNC:26088): (NBPF member 1) This gene is a member of the neuroblastoma breakpoint family (NBPF) which consists of dozens of recently duplicated genes primarily located in segmental duplications on human chromosome 1. This gene family has experienced its greatest expansion within the human lineage and has expanded, to a lesser extent, among primates in general. Members of this gene family are characterized by tandemly repeated copies of DUF1220 protein domains. Gene copy number variations in the human chromosomal region 1q21.1, where most DUF1220 domains are located, have been implicated in a number of developmental and neurogenetic diseases such as microcephaly, macrocephaly, autism, schizophrenia, cognitive disability, congenital heart disease, neuroblastoma, and congenital kidney and urinary tract anomalies. Altered expression of some gene family members is associated with several types of cancer. This gene family contains numerous pseudogenes. [provided by RefSeq, Apr 2013]

NBPF1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.044286072).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	Protein
NBPF1	NM_001405667.2 linkuse as main transcript	c.763G>C	p.Val255Leu	missense_variant	11/29	NP_001392596.1
NBPF1	NM_001405680.2 linkuse as main transcript	c.763G>C	p.Val255Leu	missense_variant	11/29	NP_001392609.1
NBPF1	NM_001405681.2 linkuse as main transcript	c.763G>C	p.Val255Leu	missense_variant	11/29	NP_001392610.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
NBPF1	ENST00000430580.6 linkuse as main transcript	c.763G>C	p.Val255Leu	missense_variant	11/29	5		ENSP00000474456.1		Q3BBV0-2
NBPF1	ENST00000392963.5 linkuse as main transcript	n.176-4307G>C		intron_variant		5		ENSP00000473795.1		S4R2Z6

Frequencies

GnomAD3 genomes

AF:

0.0000800

AC:

AN:

149980

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000300

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD4 exome

Data not reliable, filtered out with message: AS_VQSR

AF:

0.0000146

AC:

AN:

1434756

Hom.:

Cov.:

AF XY:

0.0000140

AC XY:

AN XY:

715020

show subpopulations

Gnomad4 AFR exome

AF:

0.000516

Gnomad4 AMR exome

AF:

0.0000224

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.0000188

Gnomad4 NFE exome

AF:

9.19e-7

Gnomad4 OTH exome

AF:

0.0000168

GnomAD4 genome

AF:

0.0000800

AC:

AN:

150090

Hom.:

Cov.:

AF XY:

0.0000818

AC XY:

AN XY:

73388

show subpopulations

Gnomad4 AFR

AF:

0.000299

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000843

Hom.:

ExAC

AF:

0.0000330

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Sep 16, 2021

The c.763G>C (p.V255L) alteration is located in exon 11 (coding exon 5) of the NBPF1 gene. This alteration results from a G to C substitution at nucleotide position 763, causing the valine (V) at amino acid position 255 to be replaced by a leucine (L). 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

BayesDel_addAF

Benign

-0.56

BayesDel_noAF

Benign

-1.0

CADD

Benign

0.046

DANN

Benign

0.43

FATHMM_MKL

Benign

0.00012

LIST_S2

Benign

0.36

T;T

M_CAP

Benign

0.0032

MetaRNN

Benign

0.044

T;T

PrimateAI

Uncertain

0.51

Sift4G

Benign

0.60

T;T

Vest4

0.040

MVP

0.092

gMVP

0.017

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

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