Variant 15-84658092-C-G details in Genebe, Genetics Data Aggregator

Variant summary

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

The NM_021077.4(NMB):c.61G>C(p.Ala21Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000014 in 1,425,666 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: 0.0000014 ( 0 hom. )

Consequence

NMB
NM_021077.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.0950

Variant links:

Genes affected

NMB (HGNC:7842): (neuromedin B) This gene encodes a member of the bombesin-like family of neuropeptides, which negatively regulate eating behavior. The encoded protein may regulate colonic smooth muscle contraction through binding to its cognate receptor, the neuromedin B receptor (NMBR). Polymorphisms of this gene may be associated with hunger, weight gain and obesity. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jul 2015]

NMB 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/exons	MANE
NMB	NM_021077.4 linkuse as main transcript	c.61G>C	p.Ala21Pro	missense_variant	1/3	ENST00000360476.8
NMB	NM_205858.2 linkuse as main transcript	c.61G>C	p.Ala21Pro	missense_variant	1/3
NMB	XM_017022239.2 linkuse as main transcript	c.61G>C	p.Ala21Pro	missense_variant	1/2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
NMB	ENST00000360476.8 linkuse as main transcript	c.61G>C	p.Ala21Pro	missense_variant	1/3	1	NM_021077.4	P1	P08949-1
NMB	ENST00000394588.3 linkuse as main transcript	c.61G>C	p.Ala21Pro	missense_variant	1/3	1			P08949-2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.0000103

AC:

AN:

194980

Hom.:

AF XY:

0.00

AC XY:

AN XY:

108870

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000669

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:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000140

AC:

AN:

1425666

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

708928

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000481

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.:

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

Feb 17, 2024

The c.61G>C (p.A21P) alteration is located in exon 1 (coding exon 1) of the NMB gene. This alteration results from a G to C substitution at nucleotide position 61, causing the alanine (A) at amino acid position 21 to be replaced by a proline (P). 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

Benign

0.24

BayesDel_addAF

Benign

-0.11

BayesDel_noAF

Benign

-0.22

Cadd

Benign

Dann

Uncertain

0.99

DEOGEN2

Benign

0.090

T;.

Eigen

Benign

-0.49

Eigen_PC

Benign

-0.63

FATHMM_MKL

Benign

0.11

LIST_S2

Benign

0.46

T;T

M_CAP

Benign

0.022

MetaRNN

Uncertain

0.51

D;D

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.9

L;L

MutationTaster

Benign

1.0

N;N

PrimateAI

Uncertain

0.56

PROVEAN

Uncertain

-2.9

D;D

REVEL

Benign

0.20

Sift

Uncertain

0.026

D;D

Sift4G

Benign

0.19

T;T

Polyphen

0.94

P;D

Vest4

0.57

MutPred

0.36

Loss of helix (P = 0.0376);Loss of helix (P = 0.0376);

MVP

0.37

MPC

0.55

ClinPred

0.89

GERP RS

2.1

Varity_R

0.43

gMVP

0.31

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