chr9-127501011-G-C

Position:

• chr9-127501011-G-C

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_001005373.4(LRSAM1):​c.1914G>C​(p.Glu638Asp) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000205 in 1,461,692 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 17/23 in silico tools predict a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000021 (0 hom.)
• Consequence: LRSAM1 NM_001005373.4 missense, splice_region
• Scores: Splicing: ADA: 0.00001778
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.971

Genes affected

LRSAM1 (HGNC:25135): (leucine rich repeat and sterile alpha motif containing 1) This gene encodes a ring finger protein involved in a variety of functions, including regulation of signaling pathways and cell adhesion, mediation of self-ubiquitylation, and involvement in cargo sorting during receptor endocytosis. Mutations in this gene have been associated with Charcot-Marie-Tooth disease. Multiple transcript variants encoding different isoforms have been identified for this gene. [provided by RefSeq, Jan 2012]

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.09537777).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
LRSAM1	NM_001005373.4	c.1914G>C	p.Glu638Asp	missense_variant, splice_region_variant	25/26	ENST00000300417.11	NP_001005373.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
LRSAM1	ENST00000300417.11	c.1914G>C	p.Glu638Asp	missense_variant, splice_region_variant	25/26	1	NM_001005373.4	ENSP00000300417	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD3 exomes AF: 0.00000796 AC: 2 AN: 251274 Hom.: 0 AF XY: 0.0000147 AC XY: 2 AN XY: 135862

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.000109

Gnomad SAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000205 AC: 3 AN: 1461692 Hom.: 0 Cov.: 31 AF XY: 0.00000275 AC XY: 2 AN XY: 727148

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.0000756

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ExAC AF: 0.00000824 AC: 1

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.094
BayesDel_addAF	Benign	-0.36	T
BayesDel_noAF	Benign	-0.53
CADD	Benign	14
DANN	Benign	0.97
DEOGEN2	Benign	0.042	T;.;T;T
Eigen	Benign	-0.56
Eigen_PC	Benign	-0.46
FATHMM_MKL	Uncertain	0.80	D
LIST_S2	Benign	0.56	T;T;.;.
M_CAP	Benign	0.011	T
MetaRNN	Benign	0.095	T;T;T;T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	0.69	N;.;N;N
MutationTaster	Benign	0.96	D;D;D;D
PrimateAI	Benign	0.46	T
PROVEAN	Benign	-0.88	N;N;N;N
REVEL	Benign	0.034
Sift	Benign	0.21	T;T;T;T
Sift4G	Benign	0.34	T;T;T;T
Polyphen		0.18	B;B;B;B
Vest4		0.26
MutPred		0.18		Loss of methylation at K640 (P = 0.0879);.;Loss of methylation at K640 (P = 0.0879);Loss of methylation at K640 (P = 0.0879);
MVP		0.38
MPC		0.15
ClinPred		0.081	T
GERP RS		2.2
Varity_R		0.064
gMVP		0.37

Splicing

Name	Calibrated prediction	Score	Prediction
dbscSNV1_ADA	Benign	0.000018
dbscSNV1_RF	Benign	0.0
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

Publications

LitVar

Other links and lift over

dbSNP: rs387907032; hg19: chr9-130263290;