13-20796910-C-T

Variant names:

• chr13-20796910-C-T
• rs991872216
• NM_022459.5:c.2470G>A

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4_Moderate BS2

The NM_022459.5(XPO4):​c.2470G>A​(p.Val824Ile) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000112 in 1,614,004 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. V824L) has been classified as Uncertain significance.

• Frequency:
  • Genomes: 𝑓 0.000013 (0 hom., cov: 32)
  • Exomes 𝑓: 0.000011 (0 hom.)
• Consequence: XPO4 NM_022459.5 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 7.46
• Publications: 2 publications found

Genes affected

XPO4 (HGNC:17796): (exportin 4) XPO4 belongs to a large family of karyopherins (see MIM 602738) that mediate the transport of proteins and other cargo between the nuclear and cytoplasmic compartments (Lipowsky et al., 2000 [PubMed 10944119]).[supplied by OMIM, Mar 2009]

ACMG classification

Our verdict: Likely_benign. The variant received -6 ACMG points.

• BP4: Computational evidence support a benign effect (MetaRNN=0.24577212).
• BS2: High AC in GnomAdExome4 at 16 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_022459.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	XPO4	NM_022459.5	MANE Select	c.2470G>A	p.Val824Ile	missense	Exon 17 of 23	NP_071904.4
	XPO4	NM_001372061.1		c.2470G>A	p.Val824Ile	missense	Exon 17 of 20	NP_001358990.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	XPO4	ENST00000255305.11	TSL:1 MANE Select	c.2470G>A	p.Val824Ile	missense	Exon 17 of 23	ENSP00000255305.6	Q9C0E2
	XPO4	ENST00000909777.1		c.2470G>A	p.Val824Ile	missense	Exon 17 of 23	ENSP00000579836.1
	XPO4	ENST00000953408.1		c.2470G>A	p.Val824Ile	missense	Exon 17 of 22	ENSP00000623467.1

Frequencies

GnomAD3 genomes AF: 0.0000131 AC: 2 AN: 152144 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.0000483

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.00000401 AC: 1 AN: 249342 AF XY: 0.00

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.0000556

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.0000109 AC: 16 AN: 1461860 Hom.: 0 Cov.: 31 AF XY: 0.0000138 AC XY: 10 AN XY: 727230

African (AFR) AF: 0.0000299 AC: 1 AN: 33480

American (AMR) AF: 0.00 AC: 0 AN: 44722

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26136

East Asian (EAS) AF: 0.0000252 AC: 1 AN: 39698

South Asian (SAS) AF: 0.00 AC: 0 AN: 86258

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53404

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.0000117 AC: 13 AN: 1111998

Other (OTH) AF: 0.0000166 AC: 1 AN: 60396

GnomAD4 genome AF: 0.0000131 AC: 2 AN: 152144 Hom.: 0 Cov.: 32 AF XY: 0.0000135 AC XY: 1 AN XY: 74318

African (AFR) AF: 0.0000483 AC: 2 AN: 41440

American (AMR) AF: 0.00 AC: 0 AN: 15272

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3466

East Asian (EAS) AF: 0.00 AC: 0 AN: 5190

South Asian (SAS) AF: 0.00 AC: 0 AN: 4832

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10590

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68032

Other (OTH) AF: 0.00 AC: 0 AN: 2094

Alfa AF: 0.00 Hom.: 0

EpiCase AF: 0.0000545

EpiControl AF: 0.00

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.25
BayesDel_addAF	Benign	-0.11	T
BayesDel_noAF	Benign	-0.22
CADD	Benign	23
DANN	Uncertain	0.99
DEOGEN2	Benign	0.040	T
Eigen	Benign	0.18
Eigen_PC	Uncertain	0.27
FATHMM_MKL	Uncertain	0.88	D
LIST_S2	Uncertain	0.95	D
M_CAP	Benign	0.016	T
MetaRNN	Benign	0.25	T
MetaSVM	Benign	-0.77	T
MutationAssessor	Benign	1.2	L
PhyloP100		7.5
PrimateAI	Uncertain	0.77	T
PROVEAN	Benign	-0.40	N
REVEL	Benign	0.19
Sift	Benign	0.28	T
Sift4G	Pathogenic	0.0	D
Polyphen		0.62	P
Vest4		0.41
MutPred		0.43		Gain of helix (P = 0.132)
MVP		0.15
MPC		0.62
ClinPred		0.51	D
GERP RS		5.7
Varity_R		0.10
gMVP		0.29
Mutation Taster		=90/10	polymorphism

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

Other links and lift over

dbSNP: rs991872216; hg19: chr13-21371049; COSMIC: COSV55010909;