chr1-6474095-G-T

Variant names:

• chr1-6474095-G-T
• rs59117380
• NM_020631.6:c.509C>A

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_020631.6(PLEKHG5):​c.509C>A​(p.Pro170Gln) variant causes a missense change. The variant allele was found at a frequency of 0.00000137 in 1,460,956 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P170L) has been classified as Likely benign.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: PLEKHG5 NM_020631.6 missense
• Clinical Significance: Uncertain significance criteria provided, multiple submitters, no conflicts U:2
• Conservation: PhyloP100: 7.07
• Publications: 6 publications found

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]

PLEKHG5 Gene-Disease associations (from GenCC):

• neuromuscular disease

  Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
• Charcot-Marie-Tooth disease recessive intermediate C

  Inheritance: AR Classification: STRONG, MODERATE, SUPPORTIVE Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), Orphanet
• neuronopathy, distal hereditary motor, autosomal recessive 4

  Inheritance: AR Classification: STRONG, SUPPORTIVE, LIMITED Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), Orphanet

ACMG classification

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_020631.6. 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
	PLEKHG5	NM_020631.6	MANE Select	c.509C>A	p.Pro170Gln	missense	Exon 7 of 21	NP_065682.2
	PLEKHG5	NM_001265593.2		c.716C>A	p.Pro239Gln	missense	Exon 7 of 21	NP_001252522.1	A0A804EMX3
	PLEKHG5	NM_001042663.3		c.620C>A	p.Pro207Gln	missense	Exon 8 of 22	NP_001036128.2	O94827-3

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PLEKHG5	ENST00000377728.8	TSL:2 MANE Select	c.509C>A	p.Pro170Gln	missense	Exon 7 of 21	ENSP00000366957.3	O94827-5
	PLEKHG5	ENST00000377732.5	TSL:1	c.620C>A	p.Pro207Gln	missense	Exon 7 of 21	ENSP00000366961.1	O94827-3
	PLEKHG5	ENST00000400915.8	TSL:1	c.620C>A	p.Pro207Gln	missense	Exon 8 of 22	ENSP00000383706.4	O94827-3

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD2 exomes AF: 0.00000402 AC: 1 AN: 248958 AF XY: 0.00000740

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 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: 1460956 Hom.: 0 Cov.: 38 AF XY: 0.00000275 AC XY: 2 AN XY: 726762

African (AFR) AF: 0.00 AC: 0 AN: 33476

American (AMR) AF: 0.0000224 AC: 1 AN: 44692

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26120

East Asian (EAS) AF: 0.00 AC: 0 AN: 39692

South Asian (SAS) AF: 0.00 AC: 0 AN: 86204

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 52774

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5752

European-Non Finnish (NFE) AF: 8.99e-7 AC: 1 AN: 1111888

Other (OTH) AF: 0.00 AC: 0 AN: 60358

GnomAD4 genome Cov.: 33

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000378

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, multiple submitters, no conflicts

Pathogenic	VUS	Benign	Condition
-	1	-	Inborn genetic diseases (1)
-	1	-	Neuronopathy, distal hereditary motor, autosomal recessive 4;C3809309:Charcot-Marie-Tooth disease recessive intermediate C (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.52
BayesDel_addAF	Pathogenic	0.20	D
BayesDel_noAF	Uncertain	0.040
CADD	Pathogenic	29
DANN	Uncertain	0.99
DEOGEN2	Benign	0.31	T
Eigen	Uncertain	0.56
Eigen_PC	Uncertain	0.48
FATHMM_MKL	Pathogenic	0.97	D
LIST_S2	Uncertain	0.92	D
M_CAP	Pathogenic	0.63	D
MetaRNN	Uncertain	0.64	D
MetaSVM	Uncertain	0.13	D
MutationAssessor	Benign	2.0	M
PhyloP100		7.1
PrimateAI	Uncertain	0.77	T
PROVEAN	Benign	-2.0	N
REVEL	Uncertain	0.40
Sift	Uncertain	0.0020	D
Sift4G	Pathogenic	0.0	D
Polyphen		1.0	D
Vest4		0.50
MutPred		0.33		Gain of MoRF binding (P = 0.0346)
MVP		0.80
MPC		0.89
ClinPred		0.87	D
GERP RS		4.1
Varity_R		0.25
gMVP		0.52
Mutation Taster		=43/57	disease causing

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.32		Details are displayed if max score is > 0.2
DS_AG_spliceai		0.32		Position offset: -2

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

Other links and lift over

dbSNP: rs59117380; hg19: chr1-6534155;