8-21994407-C-T

Variant names:

• chr8-21994407-C-T
• rs368651646
• NM_015024.5:c.2193C>T

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PM2 BP4_Strong BP7

The NM_015024.5(XPO7):​c.2193C>T​(p.Phe731Phe) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000685 in 1,460,162 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 31)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: XPO7 NM_015024.5 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.663
• Publications: 0 publications found

Genes affected

XPO7 (HGNC:14108): (exportin 7) The transport of protein and large RNAs through the nuclear pore complexes (NPC) is an energy-dependent and regulated process. The import of proteins with a nuclear localization signal (NLS) is accomplished by recognition of one or more clusters of basic amino acids by the importin-alpha/beta complex; see MIM 600685 and MIM 602738. The small GTPase RAN (MIM 601179) plays a key role in NLS-dependent protein import. RAN-binding protein-16 is a member of the importin-beta superfamily of nuclear transport receptors.[supplied by OMIM, Jul 2002]

XPO7 Gene-Disease associations (from GenCC):

• prostate cancer

  Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics

ACMG classification

Our verdict: Likely_benign. The variant received -3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.51).
• BP7: Synonymous conserved (PhyloP=-0.663 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_015024.5. 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
	XPO7	NM_015024.5	MANE Select	c.2193C>T	p.Phe731Phe	synonymous	Exon 20 of 28	NP_055839.3
	XPO7	NM_001100161.2		c.2220C>T	p.Phe740Phe	synonymous	Exon 20 of 28	NP_001093631.1
	XPO7	NM_001362802.2		c.2127C>T	p.Phe709Phe	synonymous	Exon 19 of 27	NP_001349731.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	XPO7	ENST00000252512.14	TSL:1 MANE Select	c.2193C>T	p.Phe731Phe	synonymous	Exon 20 of 28	ENSP00000252512.9	Q9UIA9
	XPO7	ENST00000433566.8	TSL:5	c.2196C>T	p.Phe732Phe	synonymous	Exon 20 of 28	ENSP00000410249.3	E7ESC6
	XPO7	ENST00000879832.1		c.2193C>T	p.Phe731Phe	synonymous	Exon 20 of 28	ENSP00000549891.1

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome AF: 6.85e-7 AC: 1 AN: 1460162 Hom.: 0 Cov.: 30 AF XY: 0.00 AC XY: 0 AN XY: 726292

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR) AF: 0.00 AC: 0 AN: 33448

American (AMR) AF: 0.00 AC: 0 AN: 44684

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26092

East Asian (EAS) AF: 0.00 AC: 0 AN: 39660

South Asian (SAS) AF: 0.00 AC: 0 AN: 86176

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53276

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5760

European-Non Finnish (NFE) AF: 9.00e-7 AC: 1 AN: 1110774

Other (OTH) AF: 0.00 AC: 0 AN: 60292

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

GnomAD4 genome Cov.: 31

Alfa AF: 0.00 Hom.: 0

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.51
CADD	Benign	7.9
DANN	Benign	0.66
PhyloP100		-0.66

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.090		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: rs368651646; hg19: chr8-21851918; COSMIC: COSV108772426; COSMIC: COSV108772426;