X-154533596-C-T

Position:

• chrX-154533596-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2 PP3

The NM_001360016.2(G6PD):​c.844G>A​(p.Asp282Asn) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 24)
  • Exomes 𝑓: 9.1e-7 (0 hom. 1 hem.)
  • Failed GnomAD Quality Control
• Consequence: G6PD NM_001360016.2 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 4.62

Genes affected

G6PD (HGNC:4057): (glucose-6-phosphate dehydrogenase) This gene encodes glucose-6-phosphate dehydrogenase. This protein is a cytosolic enzyme encoded by a housekeeping X-linked gene whose main function is to produce NADPH, a key electron donor in the defense against oxidizing agents and in reductive biosynthetic reactions. G6PD is remarkable for its genetic diversity. Many variants of G6PD, mostly produced from missense mutations, have been described with wide ranging levels of enzyme activity and associated clinical symptoms. G6PD deficiency may cause neonatal jaundice, acute hemolysis, or severe chronic non-spherocytic hemolytic anemia. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

G6PD (HGNC:):

ACMG classification

Verdict is Uncertain_significance. Variant got 3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.774

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
G6PD	NM_001360016.2	c.844G>A	p.Asp282Asn	missense_variant	8/13	ENST00000393562.10	NP_001346945.1
G6PD	NM_000402.4	c.934G>A	p.Asp312Asn	missense_variant	8/13		NP_000393.4
G6PD	NM_001042351.3	c.844G>A	p.Asp282Asn	missense_variant	8/13		NP_001035810.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
G6PD	ENST00000393562.10	c.844G>A	p.Asp282Asn	missense_variant	8/13	1	NM_001360016.2	ENSP00000377192.3

Frequencies

GnomAD3 genomes Cov.: 24

GnomAD4 exome Data not reliable, filtered out with message: AS_VQSR AF: 9.11e-7 AC: 1 AN: 1098206 Hom.: 0 Cov.: 32 AF XY: 0.00000275 AC XY: 1 AN XY: 363574

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.0000185

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 24

ExAC AF: 0.0000165 AC: 2

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.094
BayesDel_addAF	Benign	-0.022	T
BayesDel_noAF	Benign	-0.12
CADD	Benign	21
DANN	Uncertain	0.99
DEOGEN2	Pathogenic	0.94	D;D;D;.;D;.
FATHMM_MKL	Uncertain	0.90	D
LIST_S2	Uncertain	0.96	.;.;D;D;D;D
M_CAP	Pathogenic	0.34	D
MetaRNN	Pathogenic	0.77	D;D;D;D;D;D
MetaSVM	Pathogenic	1.1	D
MutationAssessor	Benign	1.7	L;L;L;.;.;.
PrimateAI	Uncertain	0.72	T
PROVEAN	Uncertain	-3.1	.;.;D;D;D;D
REVEL	Uncertain	0.51
Sift	Benign	0.041	.;.;D;T;D;D
Sift4G	Benign	0.093	T;.;T;T;.;.
Polyphen		0.016	B;B;B;.;.;.
Vest4		0.57
MutPred		0.74		Gain of glycosylation at T279 (P = 0.072);Gain of glycosylation at T279 (P = 0.072);Gain of glycosylation at T279 (P = 0.072);.;.;.;
MVP		0.91
MPC		1.1
ClinPred		0.38	T
GERP RS		5.7
Varity_R		0.64
gMVP		0.95

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

Other links and lift over

dbSNP: rs137852318; hg19: chrX-153761811;