1-78920215-A-G

Position:

• chr1-78920215-A-G

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2 PP3_Moderate

The NM_022159.4(ADGRL4):​c.1429T>C​(p.Phe477Leu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,459,628 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: ADGRL4 NM_022159.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 9.29

Genes affected

ADGRL4 (HGNC:20822): (adhesion G protein-coupled receptor L4) Predicted to enable G protein-coupled receptor activity. Predicted to be involved in adenylate cyclase-activating G protein-coupled receptor signaling pathway. Predicted to be located in cytoplasmic vesicle and plasma membrane. Predicted to be integral component of plasma membrane. Biomarker of glioblastoma and hypertrophic cardiomyopathy. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Verdict is Uncertain_significance. Variant got 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.92

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
ADGRL4	NM_022159.4	c.1429T>C	p.Phe477Leu	missense_variant	10/15	ENST00000370742.4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ADGRL4	ENST00000370742.4	c.1429T>C	p.Phe477Leu	missense_variant	10/15	1	NM_022159.4	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000137 AC: 2 AN: 1459628 Hom.: 0 Cov.: 30 AF XY: 0.00000275 AC XY: 2 AN XY: 726168

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: 0.00000180

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

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 13, 2022

The c.1429T>C (p.F477L) alteration is located in exon 10 (coding exon 10) of the ADGRL4 gene. This alteration results from a T to C substitution at nucleotide position 1429, causing the phenylalanine (F) at amino acid position 477 to be replaced by a leucine (L). 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	Pathogenic	1.0
BayesDel_addAF	Pathogenic	0.25	D
BayesDel_noAF	Uncertain	0.11
CADD	Pathogenic	29
DANN	Pathogenic	1.0
DEOGEN2	Benign	0.26	T
Eigen	Pathogenic	0.76
Eigen_PC	Pathogenic	0.73
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Uncertain	0.96	D
M_CAP	Benign	0.014	T
MetaRNN	Pathogenic	0.92	D
MetaSVM	Benign	-0.75	T
MutationTaster	Benign	1.0	D
PrimateAI	Pathogenic	0.80	D
PROVEAN	Pathogenic	-5.7	D
REVEL	Uncertain	0.64
Sift	Uncertain	0.012	D
Sift4G	Benign	0.075	T
Polyphen		1.0	D
Vest4		0.98
MutPred		0.78		Loss of catalytic residue at F477 (P = 0.1271);
MVP		0.79
MPC		0.18
ClinPred		0.99	D
GERP RS		5.0
Varity_R		0.74
gMVP		0.94

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr1-79385900; COSMIC: COSV66061715; COSMIC: COSV66061715;