chr18-21383532-A-G

Position:

• chr18-21383532-A-G

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2 PP2

The NM_001142966.3(GREB1L):​c.14A>G​(p.Tyr5Cys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000149 in 1,344,678 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 29)
  • Exomes 𝑓: 0.0000015 (0 hom.)
• Consequence: GREB1L NM_001142966.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 8.95

Genes affected

GREB1L (HGNC:31042): (GREB1 like retinoic acid receptor coactivator) Acts upstream of or within kidney development. Predicted to be integral component of membrane. Implicated in autosomal dominant nonsyndromic deafness and renal agenesis. [provided by Alliance of Genome Resources, Apr 2022]

(HGNC:):

ACMG classification

Verdict is Uncertain_significance. Variant got 3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP2: Missense variant in gene, where missense usually causes diseases (based on misZ statistic), GREB1L. . Gene score misZ 5.3659 (greater than the threshold 3.09). Trascript score misZ 5.6738 (greater than threshold 3.09). GenCC has associacion of gene with bilateral renal agenesis, renal hypodysplasia/aplasia 3, renal agenesis, unilateral, hearing loss, autosomal dominant 80.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
GREB1L	NM_001142966.3	c.14A>G	p.Tyr5Cys	missense_variant	3/33	ENST00000424526.7	NP_001136438.1
LOC101927521	XR_001753366.2	n.245-2857T>C		intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
GREB1L	ENST00000424526.7	c.14A>G	p.Tyr5Cys	missense_variant	3/33	5	NM_001142966.3	ENSP00000412060
	ENST00000584611.1	n.290-2857T>C		intron_variant, non_coding_transcript_variant		3

Frequencies

GnomAD3 genomes Cov.: 29

GnomAD4 exome AF: 0.00000149 AC: 2 AN: 1344678 Hom.: 0 Cov.: 31 AF XY: 0.00000303 AC XY: 2 AN XY: 660652

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.0000336

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.0000145

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 29

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Mar 19, 2022

In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Not Available"; PolyPhen-2: "Probably Damaging"; Align-GVGD: "Not Available"). This variant has not been reported in the literature in individuals affected with GREB1L-related conditions. This variant is not present in population databases (gnomAD no frequency). This sequence change replaces tyrosine, which is neutral and polar, with cysteine, which is neutral and slightly polar, at codon 5 of the GREB1L protein (p.Tyr5Cys). -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.72
BayesDel_addAF	Pathogenic	0.18	D
BayesDel_noAF	Uncertain	0.020
CADD	Pathogenic	27
DANN	Uncertain	0.99
DEOGEN2	Benign	0.028	T;.;T
Eigen	Pathogenic	0.84
Eigen_PC	Pathogenic	0.81
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Uncertain	0.94	D;D;.
M_CAP	Benign	0.045	D
MetaRNN	Uncertain	0.74	D;D;D
MetaSVM	Benign	-0.88	T
MutationAssessor	Benign	1.9	L;L;L
MutationTaster	Benign	0.96	D;D;D;D;D
PrimateAI	Pathogenic	0.94	D
PROVEAN	Pathogenic	-6.2	D;D;.
REVEL	Uncertain	0.51
Sift	Uncertain	0.0010	D;D;.
Sift4G	Uncertain	0.0030	D;D;D
Polyphen		1.0	D;.;D
Vest4		0.79
MutPred		0.32		Loss of phosphorylation at Y5 (P = 0.0442);Loss of phosphorylation at Y5 (P = 0.0442);Loss of phosphorylation at Y5 (P = 0.0442);
MVP		0.43
ClinPred		1.0	D
GERP RS		5.4
Varity_R		0.57
gMVP		0.43

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: rs1292048024; hg19: chr18-18963493;