rs114275646

chr1-6473243-C-T

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_Strong BP6_Very_Strong BS1 BS2

The NM_020631.6(PLEKHG5):c.795+8G>A variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00198 in 1,612,220 control chromosomes in the GnomAD database, including 61 homozygotes. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Benign (★★).

• Frequency:
  • Genomes: 𝑓 0.011 (32 hom., cov: 33)
  • Exomes 𝑓: 0.0011 (29 hom.)
• Consequence: PLEKHG5 NM_020631.6 splice_region, intron
• Scores: Splicing: ADA: 0.0001860
• Clinical Significance: Benign criteria provided, multiple submitters, no conflicts B:3
• Conservation: PhyloP100: 0.506

Genes affected

PLEKHG5 (HGNC:29105): (pleckstrin homology and RhoGEF domain containing G5) This gene encodes a protein that activates the nuclear factor kappa B (NFKB1) signaling pathway. Mutations in this gene are associated with autosomal recessive distal spinal muscular atrophy. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, May 2012]

ACMG classification

Verdict is Benign. Variant got -20 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.75).
• BP6: Variant 1-6473243-C-T is Benign according to our data. Variant chr1-6473243-C-T is described in ClinVar as [Benign]. Clinvar id is 297967.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
• BS1: Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.0106 (1621/152344) while in subpopulation AFR AF= 0.0371 (1541/41572). AF 95% confidence interval is 0.0355. There are 32 homozygotes in gnomad4. There are 775 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.
• BS2: High Homozygotes in GnomAd at 32 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
PLEKHG5	NM_020631.6	c.795+8G>A		splice_region_variant, intron_variant		ENST00000377728.8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
PLEKHG5	ENST00000377728.8	c.795+8G>A		splice_region_variant, intron_variant		2	NM_020631.6	P2

Frequencies

GnomAD3 genomes AF: 0.0106 AC: 1620 AN: 152226 Hom.: 32 Cov.: 33

Gnomad AFR AF: 0.0371

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00386

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00316

Gnomad NFE AF: 0.0000882

Gnomad OTH AF: 0.00716

GnomAD3 exomes AF: 0.00268 AC: 654 AN: 244080 Hom.: 13 AF XY: 0.00198 AC XY: 263 AN XY: 132868

Gnomad AFR exome AF: 0.0370

Gnomad AMR exome AF: 0.00182

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.000132

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000914

Gnomad OTH exome AF: 0.00117

GnomAD4 exome AF: 0.00108 AC: 1574 AN: 1459876 Hom.: 29 Cov.: 34 AF XY: 0.000946 AC XY: 687 AN XY: 726232

Gnomad4 AFR exome AF: 0.0380

Gnomad4 AMR exome AF: 0.00218

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.000116

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.0000567

Gnomad4 OTH exome AF: 0.00207

GnomAD4 genome AF: 0.0106 AC: 1621 AN: 152344 Hom.: 32 Cov.: 33 AF XY: 0.0104 AC XY: 775 AN XY: 74496

Gnomad4 AFR AF: 0.0371

Gnomad4 AMR AF: 0.00379

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.0000882

Gnomad4 OTH AF: 0.00709

Alfa AF: 0.00651 Hom.: 10

Bravo AF: 0.0122

Asia WGS AF: 0.000866 AC: 3 AN: 3478

ClinVar

Significance: Benign

Submissions summary: Benign:3

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

not specified Benign:1

Benign, criteria provided, single submitter

clinical testing

GeneDx

Jan 25, 2016

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Neuronopathy, distal hereditary motor, autosomal recessive 4 Benign:1

Benign, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jan 12, 2018

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Neuronopathy, distal hereditary motor, autosomal recessive 4;C3809309:Charcot-Marie-Tooth disease recessive intermediate C Benign:1

Benign, criteria provided, single submitter

clinical testing

Invitae

Jan 31, 2024

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.75
Cadd	Benign	8.2
Dann	Benign	0.61

Splicing

Name	Calibrated prediction	Score	Prediction
dbscSNV1_ADA	Benign	0.00019
dbscSNV1_RF	Benign	0.0080
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: rs114275646; hg19: chr1-6533303;