chr17-46512920-G-A

Position:

• chr17-46512920-G-A

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_001006607.3(LRRC37A2):​c.208G>A​(p.Glu70Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. In-silico tool predicts a benign outcome for this variant. 15/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 16)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: LRRC37A2 NM_001006607.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: -0.556

Genes affected

LRRC37A2 (HGNC:32404): (leucine rich repeat containing 37 member A2) Predicted to be integral component of membrane. [provided by Alliance of Genome Resources, Apr 2022]

ARL17A (HGNC:24096): (ADP ribosylation factor like GTPase 17A) Predicted to enable GTP binding activity. Predicted to be involved in intracellular protein transport and vesicle-mediated transport. Predicted to be located in Golgi apparatus. Predicted to be active in plasma membrane. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Verdict is Likely_benign. Variant got -2 ACMG points.

• BP4: Computational evidence support a benign effect (MetaRNN=0.071739584).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
LRRC37A2	NM_001006607.3	c.208G>A	p.Glu70Lys	missense_variant	1/14	ENST00000576629.6	NP_001006608.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
LRRC37A2	ENST00000576629.6	c.208G>A	p.Glu70Lys	missense_variant	1/14	5	NM_001006607.3	ENSP00000459551	P1

Frequencies

GnomAD3 genomes Cov.: 16

GnomAD4 exome Data not reliable, filtered out with message: AC0;AS_VQSR AF: 0.00 AC: 0 AN: 712054 Hom.: 0 Cov.: 4 AF XY: 0.00 AC XY: 0 AN XY: 350054

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

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.: 16

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jun 17, 2024

The c.208G>A (p.E70K) alteration is located in exon 1 (coding exon 1) of the LRRC37A2 gene. This alteration results from a G to A substitution at nucleotide position 208, causing the glutamic acid (E) at amino acid position 70 to be replaced by a lysine (K). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.14
BayesDel_addAF	Benign	-0.22	T
BayesDel_noAF	Benign	-0.55
CADD	Benign	3.2
DANN	Benign	0.95
DEOGEN2	Benign	0.0073	T;T
Eigen	Benign	-1.1
Eigen_PC	Benign	-1.2
FATHMM_MKL	Benign	0.0039	N
LIST_S2	Benign	0.61	.;T
M_CAP	Benign	0.020	T
MetaRNN	Benign	0.072	T;T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	1.6	L;L
MutationTaster	Benign	1.0	N;N
PrimateAI	Uncertain	0.58	T
PROVEAN	Benign	-1.9	.;N
REVEL	Benign	0.056
Sift	Benign	0.50	.;T
Sift4G	Benign	0.26	T;T
Polyphen		0.26	B;B
Vest4		0.12
MutPred		0.11		Gain of methylation at E70 (P = 0.0042);Gain of methylation at E70 (P = 0.0042);
MVP		0.040
ClinPred		0.084	T
GERP RS		-1.8
Varity_R		0.040
gMVP		0.078

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.020		Details are displayed if max score is > 0.2

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

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr17-44590286;