9-128947742-CG-GC

Variant names:

• chr9-128947742-CG-GC
• NM_015354.3:c.23_24delCGinsGC
• NUP188 p.Pro8Arg

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 0P and 0B.

The NM_015354.3(NUP188):​c.23_24delCGinsGC​(p.Pro8Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. It is difficult to determine the true allele frequency of this variant because it is of type MNV, and the frequency of such variant types in population databases may be underestimated and unreliable. 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. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P8L) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 31)
• Consequence: NUP188 NM_015354.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.816
• Publications: 0 publications found

Genes affected

NUP188 (HGNC:17859): (nucleoporin 188) The nuclear pore complex (NPC) is found on the nuclear envelope and forms a gateway that regulates the flow of proteins and RNAs between the cytoplasm and nucleoplasm. The NPC is comprised of approximately 30 distinct proteins collectively known as nucleoporins. Nucleoporins are pore-complex-specific glycoproteins which often have cytoplasmically oriented O-linked N-acetylglucosamine residues and numerous repeats of the pentapeptide sequence XFXFG. However, the nucleoporin protein encoded by this gene does not contain the typical FG repeat sequences found in most vertebrate nucleoporins. This nucleoporin is thought to form part of the scaffold for the central channel of the nuclear pore. [provided by RefSeq, Jan 2013]

ENSG00000251184 (HGNC:):

DOLK (HGNC:23406): (dolichol kinase) The protein encoded by this gene catalyzes the CTP-mediated phosphorylation of dolichol, and is involved in the synthesis of Dol-P-Man, which is an essential glycosyl carrier lipid for C- and O-mannosylation, N- and O-linked glycosylation of proteins, and for the biosynthesis of glycosyl phosphatidylinositol anchors in endoplasmic reticulum. Mutations in this gene are associated with dolichol kinase deficiency.[provided by RefSeq, Apr 2010]

DOLK Gene-Disease associations (from GenCC):

• DK1-congenital disorder of glycosylation

  Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, ClinGen, G2P, Labcorp Genetics (formerly Invitae)
• familial isolated dilated cardiomyopathy

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_015354.3. 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
	NUP188	NM_015354.3	MANE Select	c.23_24delCGinsGC	p.Pro8Arg	missense	N/A	NP_056169.1	Q5SRE5-1
	DOLK	NM_014908.4	MANE Select	c.-440_-439delCGinsGC		upstream_gene	N/A	NP_055723.1	Q9UPQ8

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	NUP188	ENST00000372577.2	TSL:1 MANE Select	c.23_24delCGinsGC	p.Pro8Arg	missense	N/A	ENSP00000361658.2	Q5SRE5-1
	ENSG00000251184	ENST00000482796.1	TSL:2	c.39-1447_39-1446delCGinsGC		intron	N/A	ENSP00000417556.2	H7C4K7
	NUP188	ENST00000935260.1		c.23_24delCGinsGC	p.Pro8Arg	missense	N/A	ENSP00000605319.1

Frequencies

GnomAD3 genomes Cov.: 31

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome Cov.: 31

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
PhyloP100		0.82

Splicing

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: chr9-131710021;