18-13645503-G-T

Position:

• chr18-13645503-G-T

Variant summary

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

The NM_001378100.1(LDLRAD4):​c.767G>T​(p.Ser256Ile) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 33)
• Consequence: LDLRAD4 NM_001378100.1 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 6.42

Genes affected

LDLRAD4 (HGNC:1224): (low density lipoprotein receptor class A domain containing 4) Enables R-SMAD binding activity. Involved in negative regulation of cell migration; negative regulation of epithelial to mesenchymal transition; and negative regulation of transmembrane receptor protein serine/threonine kinase signaling pathway. Located in early endosome membrane. [provided by Alliance of Genome Resources, Apr 2022]

(HGNC:):

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
LDLRAD4	NM_001378100.1	c.767G>T	p.Ser256Ile	missense_variant	7/7	ENST00000359446.11

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
LDLRAD4	ENST00000359446.11	c.767G>T	p.Ser256Ile	missense_variant	7/7	1	NM_001378100.1	P1
	ENST00000588397.1	n.155+28C>A		intron_variant, non_coding_transcript_variant		5

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 33

Bravo AF: 0.0000302

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

Dec 16, 2023

The c.767G>T (p.S256I) alteration is located in exon 7 (coding exon 5) of the LDLRAD4 gene. This alteration results from a G to T substitution at nucleotide position 767, causing the serine (S) at amino acid position 256 to be replaced by an isoleucine (I). 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	Uncertain	0.50
BayesDel_addAF	Pathogenic	0.31	D
BayesDel_noAF	Pathogenic	0.21
CADD	Uncertain	25
DANN	Uncertain	1.0
DEOGEN2	Benign	0.27	.;T;.;.;.;.
Eigen	Pathogenic	0.70
Eigen_PC	Uncertain	0.65
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Uncertain	0.92	D;D;D;D;D;D
M_CAP	Benign	0.018	T
MetaRNN	Uncertain	0.73	D;D;D;D;D;D
MetaSVM	Benign	-0.59	T
MutationAssessor	Uncertain	2.4	.;M;.;.;.;.
MutationTaster	Benign	1.0	D;D;D;D;D;D;D;D;D
PrimateAI	Uncertain	0.57	T
PROVEAN	Uncertain	-3.4	D;.;.;.;.;.
REVEL	Uncertain	0.30
Sift	Pathogenic	0.0	D;.;.;.;.;.
Sift4G	Uncertain	0.0020	D;D;D;D;D;D
Polyphen		0.99	D;D;.;.;.;.
Vest4		0.76
MutPred		0.32		.;Gain of sheet (P = 0.0101);.;.;.;.;
MVP		0.71
ClinPred		0.98	D
GERP RS		5.1
Varity_R		0.64
gMVP		0.89

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: rs2042973165; hg19: chr18-13645502;