rs557256913

Variant names:

• chr1-6468258-G-A
• rs557256913
• NM_020631.6:c.2578C>T
• PLEKHG5 p.Arg860Cys

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2 BP4

The NM_020631.6(PLEKHG5):​c.2578C>T​(p.Arg860Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000262 in 1,604,078 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 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. R860H) has been classified as Uncertain significance.

• Frequency:
  • Genomes: 𝑓 0.000013 (0 hom., cov: 33)
  • Exomes 𝑓: 0.000028 (0 hom.)
• Consequence: PLEKHG5 NM_020631.6 missense
• Clinical Significance: Uncertain significance criteria provided, multiple submitters, no conflicts U:3
• Conservation: PhyloP100: 2.11
• Publications: 3 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: Labcorp Genetics (formerly Invitae), Orphanet, Ambry Genetics
• neuronopathy, distal hereditary motor, autosomal recessive 4

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

ACMG classification

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.3686032).

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.2578C>T	p.Arg860Cys	missense	Exon 20 of 21	NP_065682.2
	PLEKHG5	NM_001265593.2		c.2785C>T	p.Arg929Cys	missense	Exon 20 of 21	NP_001252522.1	A0A804EMX3
	PLEKHG5	NM_001042663.3		c.2689C>T	p.Arg897Cys	missense	Exon 21 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.2578C>T	p.Arg860Cys	missense	Exon 20 of 21	ENSP00000366957.3	O94827-5
	PLEKHG5	ENST00000377732.5	TSL:1	c.2689C>T	p.Arg897Cys	missense	Exon 20 of 21	ENSP00000366961.1	O94827-3
	PLEKHG5	ENST00000400915.8	TSL:1	c.2689C>T	p.Arg897Cys	missense	Exon 21 of 22	ENSP00000383706.4	O94827-3

Frequencies

GnomAD3 genomes AF: 0.0000131 AC: 2 AN: 152198 Hom.: 0 Cov.: 33

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000294

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.0000417 AC: 10 AN: 239622 AF XY: 0.0000382

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.000147

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000186

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.0000276 AC: 40 AN: 1451880 Hom.: 0 Cov.: 32 AF XY: 0.0000333 AC XY: 24 AN XY: 720472

African (AFR) AF: 0.00 AC: 0 AN: 33338

American (AMR) AF: 0.000135 AC: 6 AN: 44426

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25784

East Asian (EAS) AF: 0.0000507 AC: 2 AN: 39476

South Asian (SAS) AF: 0.0000701 AC: 6 AN: 85572

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 52060

Middle Eastern (MID) AF: 0.000175 AC: 1 AN: 5718

European-Non Finnish (NFE) AF: 0.0000217 AC: 24 AN: 1105588

Other (OTH) AF: 0.0000167 AC: 1 AN: 59918

GnomAD4 genome AF: 0.0000131 AC: 2 AN: 152198 Hom.: 0 Cov.: 33 AF XY: 0.00 AC XY: 0 AN XY: 74356

African (AFR) AF: 0.00 AC: 0 AN: 41460

American (AMR) AF: 0.00 AC: 0 AN: 15284

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3472

East Asian (EAS) AF: 0.00 AC: 0 AN: 5188

South Asian (SAS) AF: 0.00 AC: 0 AN: 4830

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10626

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.0000294 AC: 2 AN: 68022

Other (OTH) AF: 0.00 AC: 0 AN: 2088

Alfa AF: 0.0000283 Hom.: 0

Bravo AF: 0.0000227

Asia WGS AF: 0.000577 AC: 2 AN: 3478

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)
-	1	-	not provided (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.17
BayesDel_addAF	Benign	-0.072	T
BayesDel_noAF	Benign	-0.12
CADD	Pathogenic	27
DANN	Uncertain	1.0
DEOGEN2	Uncertain	0.62	D
Eigen	Uncertain	0.48
Eigen_PC	Uncertain	0.49
FATHMM_MKL	Uncertain	0.91	D
LIST_S2	Uncertain	0.90	D
M_CAP	Uncertain	0.25	D
MetaRNN	Benign	0.37	T
MetaSVM	Benign	-0.45	T
MutationAssessor	Benign	1.8	L
PhyloP100		2.1
PrimateAI	Uncertain	0.66	T
PROVEAN	Uncertain	-3.8	D
REVEL	Benign	0.28
Sift	Pathogenic	0.0	D
Sift4G	Pathogenic	0.0010	D
Varity_R		0.44
gMVP		0.58
Mutation Taster		=77/23	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
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

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

Other links and lift over

dbSNP: rs557256913;

hg19: chr1-6528318;

COSMIC: COSV61070038;

COSMIC: COSV61070038;