X-73454407-C-G

Variant names:

• chrX-73454407-C-G
• rs750400645
• NM_005193.2:c.677C>G

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2 PP3_Moderate

The NM_005193.2(CDX4):​c.677C>G​(p.Ala226Gly) variant causes a missense change. The variant allele was found at a frequency of 0.00000731 in 1,094,785 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 1 hemizygotes in GnomAD. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 23)
  • Exomes 𝑓: 0.0000073 (0 hom. 1 hem.)
• Consequence: CDX4 NM_005193.2 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 7.01

Genes affected

CDX4 (HGNC:1808): (caudal type homeobox 4) This gene encodes a member of a small subfamily of homeobox containing transcription factors. The encoded protein may regulate homeobox gene expression during anteroposterior patterning and hematopoiesis. [provided by RefSeq, Aug 2012]

ACMG classification

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, 0.912

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CDX4	NM_005193.2	c.677C>G	p.Ala226Gly	missense_variant	Exon 3 of 3	ENST00000373514.3	NP_005184.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CDX4	ENST00000373514.3	c.677C>G	p.Ala226Gly	missense_variant	Exon 3 of 3	1	NM_005193.2	ENSP00000362613.1

Frequencies

GnomAD3 genomes Cov.: 23

GnomAD3 exomes AF: 0.0000390 AC: 7 AN: 179459 Hom.: 0 AF XY: 0.0000156 AC XY: 1 AN XY: 64263

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.000258

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

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: 0.00000731 AC: 8 AN: 1094785 Hom.: 0 Cov.: 29 AF XY: 0.00000277 AC XY: 1 AN XY: 360417

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.000228

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

Bravo AF: 0.0000113

ExAC AF: 0.0000165 AC: 2

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Dec 16, 2022

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.677C>G (p.A226G) alteration is located in exon 3 (coding exon 3) of the CDX4 gene. This alteration results from a C to G substitution at nucleotide position 677, causing the alanine (A) at amino acid position 226 to be replaced by a glycine (G). 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	0.81
BayesDel_addAF	Uncertain	0.13	D
BayesDel_noAF	Pathogenic	0.25
CADD	Uncertain	25
DANN	Uncertain	1.0
DEOGEN2	Pathogenic	0.94	D
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Uncertain	0.86	D
M_CAP	Pathogenic	0.58	D
MetaRNN	Pathogenic	0.91	D
MetaSVM	Pathogenic	1.1	D
MutationAssessor	Pathogenic	3.5	M
PrimateAI	Pathogenic	0.84	D
PROVEAN	Uncertain	-3.9	D
REVEL	Pathogenic	0.91
Sift	Pathogenic	0.0	D
Sift4G	Pathogenic	0.0	D
Polyphen		0.99	D
Vest4		0.73
MutPred		0.71		Gain of disorder (P = 0.0904);
MVP		0.99
MPC		0.55
ClinPred		0.87	D
GERP RS		4.0
Varity_R		0.91
gMVP		0.48

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: rs750400645; hg19: chrX-72674243;