Genetic Variant NMBR:p.Arg43His (chr6-142088531-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_002511.4(NMBR):c.128G>A(p.Arg43His) variant causes a missense change. The variant allele was found at a frequency of 0.000242 in 1,614,028 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00020 ( 0 hom., cov: 31)

Exomes 𝑓: 0.00025 ( 0 hom. )

Consequence

NMBR
NM_002511.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.07

Variant links:

Genes affected

NMBR (HGNC:7843): (neuromedin B receptor) This gene encodes a 7-transmembrane G protein-coupled receptor that binds neuromedin B, which is a growth factor and mitogen for gastrointestinal epithelial tissue and for normal and neoplastic lung. This receptor may play a role in smooth muscle contraction, neuronal responses, and the regulation of cell growth. Antagonists of this receptor have a potential therapeutic use in inhibiting tumor cell growth. Polymorphisms in this gene may be associated with a susceptibility for schizophrenia. Alternative splicing of this gene results in multiple transcript variants. [provided by RefSeq, Apr 2016]

NMBR links:

NMBR-AS1 (HGNC:40406): (NMBR antisense RNA 1)

NMBR-AS1 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
NMBR	NM_002511.4 link	c.128G>A	p.Arg43His	missense_variant	Exon 2 of 4	ENST00000258042.2	NP_002502.2	P28336
NMBR	NM_001324307.2 link	c.-22-9628G>A		intron_variant	Intron 2 of 3		NP_001311236.1	P28336
NMBR	NM_001324308.2 link	c.-22-9628G>A		intron_variant	Intron 1 of 2		NP_001311237.1	P28336

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
NMBR	ENST00000258042.2 link	c.128G>A	p.Arg43His	missense_variant	Exon 2 of 4	1	NM_002511.4	ENSP00000258042.1		P28336
NMBR-AS1	ENST00000454401.1 link	n.142+157C>T		intron_variant	Intron 1 of 1	5

Frequencies

GnomAD3 genomes

AF:

0.000197

AC:

AN:

152062

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000145

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000197

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00104

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000235

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000295

AC:

AN:

250958

Hom.:

AF XY:

0.000346

AC XY:

AN XY:

135708

show subpopulations

Gnomad AFR exome

AF:

0.0000617

Gnomad AMR exome

AF:

0.000376

Gnomad ASJ exome

AF:

0.000199

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00121

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000185

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000247

AC:

361

AN:

1461848

Hom.:

Cov.:

AF XY:

0.000275

AC XY:

200

AN XY:

727230

show subpopulations

Gnomad4 AFR exome

AF:

0.0000896

Gnomad4 AMR exome

AF:

0.000335

Gnomad4 ASJ exome

AF:

0.000230

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000191

Gnomad4 OTH exome

AF:

0.000248

GnomAD4 genome

AF:

0.000197

AC:

AN:

152180

Hom.:

Cov.:

AF XY:

0.000134

AC XY:

AN XY:

74402

show subpopulations

Gnomad4 AFR

AF:

0.000144

Gnomad4 AMR

AF:

0.000196

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00104

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000235

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000311

Hom.:

Bravo

AF:

0.000208

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.00

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.000296

AC:

Asia WGS

AF:

0.000577

AC:

AN:

3478

EpiCase

AF:

0.000327

EpiControl

AF:

0.000237

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Aug 21, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.128G>A (p.R43H) alteration is located in exon 1 (coding exon 1) of the NMBR gene. This alteration results from a G to A substitution at nucleotide position 128, causing the arginine (R) at amino acid position 43 to be replaced by a histidine (H). 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

0.15

BayesDel_addAF

Benign

-0.24

BayesDel_noAF

Benign

-0.16

CADD

Uncertain

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.050

Eigen

Uncertain

0.66

Eigen_PC

Pathogenic

0.69

FATHMM_MKL

Uncertain

0.84

LIST_S2

Uncertain

0.87

M_CAP

Benign

0.017

MetaRNN

Uncertain

0.44

MetaSVM

Benign

-1.1

MutationAssessor

Uncertain

2.5

PrimateAI

Uncertain

0.60

PROVEAN

Benign

-0.99

REVEL

Benign

0.23

Sift

Benign

0.15

Sift4G

Benign

0.44

Polyphen

0.99

Vest4

0.86

MVP

0.80

MPC

0.30

ClinPred

0.24

GERP RS

5.6

Varity_R

0.089

gMVP

0.74

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