chrX-102368596-G-C

Variant names:

• chrX-102368596-G-C
• NM_001099686.3:c.659C>G
• NXF2B p.Thr220Ser

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_001099686.3(NXF2B):​c.659C>G​(p.Thr220Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. In-silico tool predicts a benign outcome for this variant. 13/17 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 nucleotide change resulting in the same amino acid substitution has been previously reported as Uncertain significance in ClinVar.

• Frequency: Genomes: not found (cov: 0)
• Consequence: NXF2B NM_001099686.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 2.28
• Publications: 0 publications found

Genes affected

NXF2B (HGNC:23984): (nuclear RNA export factor 2B) This gene encodes a member of a family of nuclear RNA export proteins. The encoded protein is associated with the nuclear envelope and aids in the export of mRNAs. There is a closely related paralog of this gene located adjacent on chromosome X and on the opposite strand. [provided by RefSeq, Jun 2015]

ENSG00000284800 (HGNC:):

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• BP4: Computational evidence support a benign effect (MetaRNN=0.081867754).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001099686.3. 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
	NXF2B	NM_001099686.3	MANE Select	c.659C>G	p.Thr220Ser	missense	Exon 9 of 23	NP_001093156.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	NXF2B	ENST00000602195.6	TSL:1 MANE Select	c.659C>G	p.Thr220Ser	missense	Exon 9 of 23	ENSP00000472530.1	Q9GZY0
	NXF2B	ENST00000604395.5	TSL:1	c.659C>G	p.Thr220Ser	missense	Exon 7 of 21	ENSP00000474659.2	Q9GZY0
	ENSG00000284800	ENST00000618302.2	TSL:2	n.*1032C>G		non_coding_transcript_exon	Exon 13 of 27	ENSP00000484645.2	A0A2U3TZR1

Frequencies

GnomAD3 genomes Cov.: 0

GnomAD4 exome Cov.: 0

GnomAD4 genome Cov.: 0

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.18
BayesDel_addAF	Benign	-0.16	T
BayesDel_noAF	Benign	-0.46
CADD	Benign	14
DANN	Benign	0.64
FATHMM_MKL	Benign	0.59	D
M_CAP	Benign	0.0041	T
MetaRNN	Benign	0.082	T
MetaSVM	Benign	-0.94	T
PhyloP100		2.3
PrimateAI	Benign	0.36	T
Sift4G	Benign	0.42	T
gMVP		0.24
Mutation Taster		=99/1	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.12		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.

Other links and lift over

hg19: chrX-101623517;