NM_014846.4:c.597A>T

Variant names:

• chr8-125078852-T-A
• rs7812319
• NM_014846.4:c.597A>T

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_014846.4(WASHC5):​c.597A>T​(p.Pro199Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000547 in 1,461,766 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. P199P) has been classified as Benign.

• Frequency:
  • Genomes: not found (cov: 31)
  • Exomes 𝑓: 0.0000055 (0 hom.)
• Consequence: WASHC5 NM_014846.4 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.638
• Publications: 0 publications found

Genes affected

WASHC5 (HGNC:28984): (WASH complex subunit 5) This gene encodes a 134 kDa protein named strumpellin that is predicted to have multiple transmembrane domains and a spectrin-repeat-containing domain. This ubiquitously expressed gene has its highest expression in skeletal muscle. The protein is named for Strumpell disease; a form of hereditary spastic paraplegia (HSP). Spastic paraplegias are a diverse group of disorders in which the autosomal dominant forms are characterized by progressive, lower extremity spasticity caused by axonal degeneration in the terminal portions of the longest descending and ascending corticospinal tracts. More than 30 loci (SPG1-33) have been implicated in hereditary spastic paraplegia diseases. [provided by RefSeq, Aug 2009]

WASHC5 Gene-Disease associations (from GenCC):

• Ritscher-Schinzel syndrome 1

  Inheritance: AR Classification: STRONG, LIMITED Submitted by: ClinGen, Labcorp Genetics (formerly Invitae), G2P, Genomics England PanelApp
• hereditary spastic paraplegia 8

  Inheritance: AD Classification: MODERATE, SUPPORTIVE Submitted by: ClinGen, Orphanet
• Ritscher-Schinzel syndrome

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.4).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_014846.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	WASHC5	NM_014846.4	MANE Select	c.597A>T	p.Pro199Pro	synonymous	Exon 6 of 29	NP_055661.3
	WASHC5	NM_001330609.2		c.153A>T	p.Pro51Pro	synonymous	Exon 5 of 28	NP_001317538.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	WASHC5	ENST00000318410.12	TSL:1 MANE Select	c.597A>T	p.Pro199Pro	synonymous	Exon 6 of 29	ENSP00000318016.7
	WASHC5	ENST00000517845.5	TSL:2	c.153A>T	p.Pro51Pro	synonymous	Exon 4 of 27	ENSP00000429676.1
	WASHC5	ENST00000523297.5	TSL:3	c.153A>T	p.Pro51Pro	synonymous	Exon 5 of 7	ENSP00000427946.1

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome AF: 0.00000547 AC: 8 AN: 1461766 Hom.: 0 Cov.: 31 AF XY: 0.00000275 AC XY: 2 AN XY: 727182

African (AFR) AF: 0.00 AC: 0 AN: 33478

American (AMR) AF: 0.00 AC: 0 AN: 44718

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26132

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

South Asian (SAS) AF: 0.00 AC: 0 AN: 86258

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53418

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.00000719 AC: 8 AN: 1111908

Other (OTH) AF: 0.00 AC: 0 AN: 60394

GnomAD4 genome Cov.: 31

EpiCase AF: 0.0000545

EpiControl AF: 0.00

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.40
CADD	Benign	9.8
DANN	Benign	0.71
PhyloP100		0.64

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		Details are displayed if max score is > 0.2

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

Other links and lift over

dbSNP: rs7812319; hg19: chr8-126091094;