chrX-154542910-A-G

Position:

• chrX-154542910-A-G

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 0P and 14B. BP4_Strong BP6_Moderate BA1

The NM_001360016.2(G6PD):​c.120+3126T>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0947 in 111,899 control chromosomes in the GnomAD database, including 1,252 homozygotes. There are 2,811 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

• Frequency: Genomes: 𝑓 0.095 (1252 hom., 2811 hem., cov: 23)
• Consequence: G6PD NM_001360016.2 intron
• Clinical Significance: Benign criteria provided, single submitter B:1
• Conservation: PhyloP100: -0.0670

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]

IKBKG (HGNC:5961): (inhibitor of nuclear factor kappa B kinase regulatory subunit gamma) This gene encodes the regulatory subunit of the inhibitor of kappaB kinase (IKK) complex, which activates NF-kappaB resulting in activation of genes involved in inflammation, immunity, cell survival, and other pathways. Mutations in this gene result in incontinentia pigmenti, hypohidrotic ectodermal dysplasia, and several other types of immunodeficiencies. A pseudogene highly similar to this locus is located in an adjacent region of the X chromosome. [provided by RefSeq, Mar 2016]

ACMG classification

Verdict is Benign. Variant got -14 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.87).
• BP6: Variant X-154542910-A-G is Benign according to our data. Variant chrX-154542910-A-G is described in ClinVar as [Benign]. Clinvar id is 1722722.Status of the report is criteria_provided_single_submitter, 1 stars.
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.322 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
G6PD	NM_001360016.2	c.120+3126T>C		intron_variant		ENST00000393562.10

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
G6PD	ENST00000393562.10	c.120+3126T>C		intron_variant		1	NM_001360016.2	P4

Frequencies

GnomAD3 genomes AF: 0.0946 AC: 10582 AN: 111845 Hom.: 1250 Cov.: 23 AF XY: 0.0823 AC XY: 2803 AN XY: 34045

Gnomad AFR AF: 0.328

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.0401

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00110

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00420

Gnomad NFE AF: 0.000902

Gnomad OTH AF: 0.0697

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.0947 AC: 10596 AN: 111899 Hom.: 1252 Cov.: 23 AF XY: 0.0824 AC XY: 2811 AN XY: 34109

Gnomad4 AFR AF: 0.328

Gnomad4 AMR AF: 0.0401

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.000736

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.000902

Gnomad4 OTH AF: 0.0688

Alfa AF: 0.0178 Hom.: 71

Bravo AF: 0.107

ClinVar

Significance: Benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

Submissions by phenotype

Anemia, nonspherocytic hemolytic, due to G6PD deficiency Benign:1

Benign, criteria provided, single submitter

curation

Dunham Lab, University of Washington

Aug 12, 2022

Variant found at a frequency of over 9% in gnomAD (BA1). -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.87
CADD	Benign	1.2
DANN	Benign	0.58
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.2

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		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: rs73573488; hg19: chrX-153771125;