Variant 6-1959956-T-C details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_001500.4(GMDS):c.554A>G(p.Tyr185Cys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000069 in 1,448,732 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 12/21 in silico tools predict a damaging outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.9e-7 ( 0 hom. )

Consequence

GMDS
NM_001500.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.58

Variant links:

Genes affected

GMDS (HGNC:4369): (GDP-mannose 4,6-dehydratase) GDP-mannose 4,6-dehydratase (GMD; EC 4.2.1.47) catalyzes the conversion of GDP-mannose to GDP-4-keto-6-deoxymannose, the first step in the synthesis of GDP-fucose from GDP-mannose, using NADP+ as a cofactor. The second and third steps of the pathway are catalyzed by a single enzyme, GDP-keto-6-deoxymannose 3,5-epimerase, 4-reductase, designated FX in humans (MIM 137020).[supplied by OMIM, Aug 2009]

GMDS links:

GMDS (HGNC:):

GMDS links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.929

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
GMDS	NM_001500.4 linkuse as main transcript	c.554A>G	p.Tyr185Cys	missense_variant	6/11	ENST00000380815.5	NP_001491.1	O60547-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
GMDS	ENST00000380815.5 linkuse as main transcript	c.554A>G	p.Tyr185Cys	missense_variant	6/11	1	NM_001500.4	ENSP00000370194.4		O60547-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.90e-7

AC:

AN:

1448732

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

721156

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000255

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 16, 2023

The c.554A>G (p.Y185C) alteration is located in exon 6 (coding exon 6) of the GMDS gene. This alteration results from a A to G substitution at nucleotide position 554, causing the tyrosine (Y) at amino acid position 185 to be replaced by a cysteine (C). 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

0.70

BayesDel_addAF

Pathogenic

0.51

BayesDel_noAF

Pathogenic

0.49

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Pathogenic

0.86

.;D

Eigen

Pathogenic

0.95

Eigen_PC

Pathogenic

0.89

FATHMM_MKL

Pathogenic

1.0

LIST_S2

Pathogenic

1.0

D;D

M_CAP

Pathogenic

0.51

MetaRNN

Pathogenic

0.93

D;D

MetaSVM

Pathogenic

1.1

MutationAssessor

Pathogenic

4.1

.;H

PrimateAI

Pathogenic

0.94

PROVEAN

Pathogenic

-8.8

D;D

REVEL

Pathogenic

0.94

Sift

Pathogenic

0.0

D;D

Sift4G

Pathogenic

0.0

D;D

Polyphen

1.0

.;D

Vest4

0.82

MutPred

0.74

.;Loss of MoRF binding (P = 0.1173);

MVP

0.92

MPC

2.1

ClinPred

1.0

GERP RS

5.8

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.96

gMVP

0.89

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

No publications associated with this variant yet.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over