X-57592251-G-A

Variant names:

• chrX-57592251-G-A
• NM_007157.4:c.203G>A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_007157.4(ZXDB):​c.203G>A​(p.Gly68Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 13/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 23)
  • Exomes 𝑓: 0.0 (0 hom. 0 hem.)
  • Failed GnomAD Quality Control
• Consequence: ZXDB NM_007157.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 1.19

Genes affected

ZXDB (HGNC:13199): (zinc finger X-linked duplicated B) The ZXDB gene is one of a pair of duplicated zinc finger genes on chromosome Xp11.21 (Greig et al., 1993 [PubMed 8268913]); see also ZXDA (MIM 300235).[supplied by OMIM, Jul 2010]

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.14503643).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ZXDB	NM_007157.4	c.203G>A	p.Gly68Asp	missense_variant	Exon 1 of 1	ENST00000374888.3	NP_009088.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ZXDB	ENST00000374888.3	c.203G>A	p.Gly68Asp	missense_variant	Exon 1 of 1	6	NM_007157.4	ENSP00000364023.1

Frequencies

GnomAD3 genomes Cov.: 23

GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 1051750 Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0 AN XY: 340942

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: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 23

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Jan 05, 2022

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.203G>A (p.G68D) alteration is located in exon 1 (coding exon 1) of the ZXDB gene. This alteration results from a G to A substitution at nucleotide position 203, causing the glycine (G) at amino acid position 68 to be replaced by an aspartic acid (D). 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	0.089
BayesDel_addAF	Benign	-0.39	T
BayesDel_noAF	Benign	-0.79
CADD	Benign	15
DANN	Benign	0.96
DEOGEN2	Benign	0.0063	T
FATHMM_MKL	Benign	0.25	N
LIST_S2	Benign	0.35	T
M_CAP	Pathogenic	0.48	D
MetaRNN	Benign	0.15	T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	1.4	L
PrimateAI	Pathogenic	0.89	D
PROVEAN	Benign	0.30	N
REVEL	Benign	0.065
Sift	Benign	0.11	T
Sift4G	Uncertain	0.014	D
Polyphen		0.0	B
Vest4		0.065
MutPred		0.16		Loss of methylation at R67 (P = 0.0371);
MVP		0.12
MPC		1.4
ClinPred		0.037	T
GERP RS		1.4
Varity_R		0.10
gMVP		0.094

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.

Other links and lift over

hg19: chrX-57618684;