chr9-35065254-TC-CT

Variant names:

• chr9-35065254-TC-CT
• NM_007126.5:c.572_573delGAinsAG
• VCP p.Arg191Gln

Variant summary

Our verdict is Pathogenic. The variant received 13 ACMG points: 13P and 0B. PS1_Very_Strong PM1 PM5 PP3

The NM_007126.5(VCP):​c.572_573delGAinsAG​(p.Arg191Gln) variant causes a missense change involving the alteration of a 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 Likely pathogenic in ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R191P) has been classified as Likely pathogenic.

• Frequency: Genomes: not found (cov: 32)
• Consequence: VCP NM_007126.5 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 7.77
• Publications: 0 publications found

Genes affected

VCP (HGNC:12666): (valosin containing protein) This gene encodes a member of the AAA ATPase family of proteins. The encoded protein plays a role in protein degradation, intracellular membrane fusion, DNA repair and replication, regulation of the cell cycle, and activation of the NF-kappa B pathway. This protein forms a homohexameric complex that interacts with a variety of cofactors and extracts ubiquitinated proteins from lipid membranes or protein complexes. Mutations in this gene cause IBMPFD (inclusion body myopathy with paget disease of bone and frontotemporal dementia), ALS (amyotrophic lateral sclerosis) and Charcot-Marie-Tooth disease in human patients. [provided by RefSeq, Aug 2017]

VCP Gene-Disease associations (from GenCC):

• complex neurodevelopmental disorder

  Inheritance: AD Classification: DEFINITIVE Submitted by: Ambry Genetics
• inclusion body myopathy with Paget disease of bone and frontotemporal dementia

  Inheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, ClinGen
• Charcot-Marie-Tooth disease type 2Y

  Inheritance: AD Classification: STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet
• frontotemporal dementia and/or amyotrophic lateral sclerosis 6

  Inheritance: AD Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae), Genomics England PanelApp
• inclusion body myopathy with Paget disease of bone and frontotemporal dementia type 1

  Inheritance: AD Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
• adult-onset distal myopathy due to VCP mutation

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• amyotrophic lateral sclerosis

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• frontotemporal dementia with motor neuron disease

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• spastic paraplegia-Paget disease of bone syndrome

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• neurodevelopmental disorder

  Inheritance: AD Classification: LIMITED Submitted by: G2P

ENSG00000288699 (HGNC:):

ACMG classification

Our verdict: Pathogenic. The variant received 13 ACMG points.

• PS1: Transcript NM_007126.5 (VCP) is affected with MISSENSE_VARIANT having same AA change as one Pathogenic present in ClinVar.
• PM1: In a hotspot region, there are 2 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 8 uncertain in NM_007126.5
• PM5: Other missense variant is known to change same aminoacid residue: Variant chr9-35065255-C-G is described in ClinVar as Pathogenic/Likely_pathogenic. ClinVar VariationId is 873223.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
• PP3: No computational evidence supports a deleterious effect, but strongly conserved according to phyloP

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_007126.5. 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
	VCP	NM_007126.5	MANE Select	c.572_573delGAinsAG	p.Arg191Gln	missense	N/A	NP_009057.1	P55072
	VCP	NM_001354927.2		c.437_438delGAinsAG	p.Arg146Gln	missense	N/A	NP_001341856.1	C9JUP7
	VCP	NM_001354928.2		c.437_438delGAinsAG	p.Arg146Gln	missense	N/A	NP_001341857.1	C9JUP7

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	VCP	ENST00000358901.11	TSL:1 MANE Select	c.572_573delGAinsAG	p.Arg191Gln	missense	N/A	ENSP00000351777.6	P55072
	VCP	ENST00000969527.1		c.572_573delGAinsAG	p.Arg191Gln	missense	N/A	ENSP00000639586.1
	VCP	ENST00000940607.1		c.569_570delGAinsAG	p.Arg190Gln	missense	N/A	ENSP00000610666.1

Frequencies

GnomAD3 genomes Cov.: 32

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

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
PhyloP100		7.8

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: chr9-35065251;