Variant 6-16278885-A-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_006877.4(GMPR):c.649A>G(p.Ile217Val) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000563 in 1,599,984 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000055 ( 0 hom. )

Consequence

GMPR
NM_006877.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.16

Variant links:

Genes affected

GMPR (HGNC:4376): (guanosine monophosphate reductase) This gene encodes an enzyme that catalyzes the irreversible and NADPH-dependent reductive deamination of GMP to IMP. The protein also functions in the re-utilization of free intracellular bases and purine nucleosides.[provided by RefSeq, Oct 2009]

GMPR links:

Genome browser will be placed here

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	UniProt
GMPR	NM_006877.4 linkuse as main transcript	c.649A>G	p.Ile217Val	missense_variant	6/9	ENST00000259727.5
GMPR	XM_047418656.1 linkuse as main transcript	c.649A>G	p.Ile217Val	missense_variant	6/9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
GMPR	ENST00000259727.5 linkuse as main transcript	c.649A>G	p.Ile217Val	missense_variant	6/9	1	NM_006877.4	P1
GMPR	ENST00000543191.5 linkuse as main transcript	n.150-6908A>G		intron_variant, non_coding_transcript_variant		2

Frequencies

GnomAD3 genomes

AF:

0.00000658

AC:

AN:

152014

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000193

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

GnomAD3 exomes

AF:

0.0000160

AC:

AN:

249850

Hom.:

AF XY:

0.0000222

AC XY:

AN XY:

134986

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000218

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:

0.00000552

AC:

AN:

1447970

Hom.:

Cov.:

AF XY:

0.00000693

AC XY:

AN XY:

721124

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000151

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000182

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000658

AC:

AN:

152014

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74224

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000193

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000227

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

Mar 23, 2023

The c.649A>G (p.I217V) alteration is located in exon 6 (coding exon 6) of the GMPR gene. This alteration results from a A to G substitution at nucleotide position 649, causing the isoleucine (I) at amino acid position 217 to be replaced by a valine (V). 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

0.12

BayesDel_addAF

Benign

-0.066

BayesDel_noAF

Uncertain

-0.040

Cadd

Uncertain

Dann

Benign

0.91

DEOGEN2

Uncertain

0.56

Eigen

Benign

0.048

Eigen_PC

Benign

0.18

FATHMM_MKL

Uncertain

0.91

LIST_S2

Pathogenic

0.98

M_CAP

Benign

0.031

MetaRNN

Uncertain

0.64

MetaSVM

Benign

-0.52

MutationAssessor

Uncertain

2.8

MutationTaster

Benign

1.0

PrimateAI

Uncertain

0.78

PROVEAN

Benign

-0.54

REVEL

Uncertain

0.48

Sift

Benign

0.46

Sift4G

Benign

0.53

Polyphen

0.091

Vest4

0.68

MutPred

0.78

Loss of sheet (P = 0.0817);

MVP

0.80

MPC

0.094

ClinPred

0.39

GERP RS

4.8

Varity_R

0.23

gMVP

0.71

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