5-170258124-C-T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_005565.5(LCP2):c.1013G>A(p.Ser338Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000105 in 1,613,874 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: 𝑓 0.000020 (0 hom., cov: 32)
  • Exomes 𝑓: 0.0000096 (0 hom.)
• Consequence: LCP2 NM_005565.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: -0.240

Genes affected

LCP2 (HGNC:6529): (lymphocyte cytosolic protein 2) This gene encodes an adapter protein that acts as a substrate of the T cell antigen receptor (TCR)-activated protein tyrosine kinase pathway. The encoded protein associates with growth factor receptor bound protein 2, and is thought to play a role TCR-mediated intracellular signal transduction. A similar protein in mouse plays a role in normal T-cell development and activation. Mice lacking this gene show subcutaneous and intraperitoneal fetal hemorrhaging, dysfunctional platelets and impaired viability. [provided by RefSeq, Nov 2016]

ACMG classification

Verdict is Likely_benign. Variant got -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.059054136).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
LCP2	NM_005565.5	c.1013G>A	p.Ser338Asn	missense_variant	16/21	ENST00000046794.10
LCP2	XM_047417171.1	c.782G>A	p.Ser261Asn	missense_variant	14/19

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
LCP2	ENST00000046794.10	c.1013G>A	p.Ser338Asn	missense_variant	16/21	1	NM_005565.5	P1
LCP2	ENST00000521416.5	c.398G>A	p.Ser133Asn	missense_variant	8/13	2
LCP2	ENST00000520344.1	c.314G>A	p.Ser105Asn	missense_variant	7/8	5
LCP2	ENST00000523369.1	n.375G>A		non_coding_transcript_exon_variant	1/2	5

Frequencies

GnomAD3 genomes AF: 0.0000197 AC: 3 AN: 152174 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.000385

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000147

Gnomad OTH AF: 0.00

GnomAD3 exomes AF: 0.0000120 AC: 3 AN: 249236 Hom.: 0 AF XY: 0.00 AC XY: 0 AN XY: 135202

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.0000290

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.000111

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: 0.00000958 AC: 14 AN: 1461582 Hom.: 0 Cov.: 30 AF XY: 0.00000963 AC XY: 7 AN XY: 727076

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.0000224

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.0000252

Gnomad4 SAS exome AF: 0.0000812

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.0000828

GnomAD4 genome AF: 0.0000197 AC: 3 AN: 152292 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 74458

Gnomad4 AFR AF: 0.00

Gnomad4 AMR AF: 0.00

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.000386

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.0000147

Gnomad4 OTH AF: 0.00

Bravo AF: 0.00000756

ExAC AF: 0.00000827 AC: 1

Asia WGS AF: 0.000866 AC: 3 AN: 3478

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

Oct 10, 2023

The c.1013G>A (p.S338N) alteration is located in exon 16 (coding exon 16) of the LCP2 gene. This alteration results from a G to A substitution at nucleotide position 1013, causing the serine (S) at amino acid position 338 to be replaced by an asparagine (N). 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	0.080
BayesDel_addAF	Benign	-0.47	T
BayesDel_noAF	Benign	-0.69
Cadd	Benign	12
Dann	Benign	0.88
DEOGEN2	Benign	0.31	T;T;T;T
Eigen	Benign	-0.45
Eigen_PC	Benign	-0.34
FATHMM_MKL	Benign	0.34	N
LIST_S2	Benign	0.75	T;T;T;T
M_CAP	Benign	0.010	T
MetaRNN	Benign	0.059	T;T;T;T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	1.7	L;.;.;.
MutationTaster	Benign	0.96	D;D
PrimateAI	Benign	0.41	T
PROVEAN	Benign	-0.25	N;.;N;N
REVEL	Benign	0.14
Sift	Benign	0.29	T;.;T;T
Sift4G	Benign	0.43	T;T;T;T
Polyphen		0.0010	B;.;B;.
Vest4		0.035
MutPred		0.097		Loss of phosphorylation at S338 (P = 0.0211);Loss of phosphorylation at S338 (P = 0.0211);.;.;
MVP		0.43
MPC		0.16
ClinPred		0.087	T
GERP RS		0.50
Varity_R		0.034
gMVP		0.29

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

Publications

LitVar

Other links and lift over

dbSNP: rs368601383; hg19: chr5-169685128; COSMIC: COSV50466209;