6-43523908-T-C

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 3P and 2B. PM2 PP2 BP4_Moderate

The NM_020750.3(XPO5):c.3575A>G(p.Asp1192Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,708 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: XPO5 NM_020750.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 2.95

Genes affected

XPO5 (HGNC:17675): (exportin 5) This gene encodes a member of the karyopherin family that is required for the transport of small RNAs and double-stranded RNA-binding proteins from the nucleus to the cytoplasm. The encoded protein translocates cargo through the nuclear pore complex in a RanGTP-dependent process. [provided by RefSeq, Aug 2011]

POLR1C (HGNC:20194): (RNA polymerase I and III subunit C) The protein encoded by this gene is a subunit of both RNA polymerase I and RNA polymerase III complexes. The encoded protein is part of the Pol core element. Mutations in this gene have been associated with Treacher Collins syndrome (TCS) and hypomyelinating leukodystrophy 11. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jan 2016]

ACMG classification

Verdict is Uncertain_significance. Variant got 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP2: Missense variant where missense usually causes diseases, XPO5
• BP4: Computational evidence support a benign effect (MetaRNN=0.09306887).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
XPO5	NM_020750.3	c.3575A>G	p.Asp1192Gly	missense_variant	32/32	ENST00000265351.12

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
XPO5	ENST00000265351.12	c.3575A>G	p.Asp1192Gly	missense_variant	32/32	1	NM_020750.3	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD3 exomes AF: 0.00000401 AC: 1 AN: 249220 Hom.: 0 AF XY: 0.00 AC XY: 0 AN XY: 135210

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

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: 0.000165

GnomAD4 exome AF: 0.00000137 AC: 2 AN: 1461708 Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0 AN XY: 727136

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: 8.99e-7

Gnomad4 OTH exome AF: 0.0000166

GnomAD4 genome Cov.: 32

Alfa AF: 0.000111 Hom.: 0

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jul 09, 2021

The c.3575A>G (p.D1192G) alteration is located in exon 32 (coding exon 32) of the XPO5 gene. This alteration results from a A to G substitution at nucleotide position 3575, causing the aspartic acid (D) at amino acid position 1192 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	Benign	0.077
BayesDel_addAF	Benign	-0.23	T
BayesDel_noAF	Benign	-0.56
Cadd	Benign	20
Dann	Uncertain	0.99
DEOGEN2	Benign	0.17	T
Eigen	Benign	-0.024
Eigen_PC	Benign	0.17
FATHMM_MKL	Pathogenic	0.97	D
LIST_S2	Benign	0.67	T
M_CAP	Benign	0.014	T
MetaRNN	Benign	0.093	T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	0.75	N
MutationTaster	Benign	1.0	D;D
PrimateAI	Benign	0.32	T
PROVEAN	Benign	-1.8	N
REVEL	Benign	0.058
Sift	Benign	0.033	D
Sift4G	Benign	0.15	T
Polyphen		0.0010	B
Vest4		0.058
MutPred		0.35		Gain of sheet (P = 0.039);
MVP		0.11
MPC		1.4
ClinPred		0.32	T
GERP RS		6.0
Varity_R		0.12
gMVP		0.15

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: rs1206919294; hg19: chr6-43491646;