chr18-59267440-A-G

Position:

• chr18-59267440-A-G

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_Strong BP6_Very_Strong BA1

The NM_013435.3(RAX):​c.*1564T>C variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0182 in 152,334 control chromosomes in the GnomAD database, including 32 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

• Frequency:
  • Genomes: 𝑓 0.018 (32 hom., cov: 32)
  • Exomes 𝑓: 0.056 (0 hom.)
• Consequence: RAX NM_013435.3 3_prime_UTR
• Clinical Significance: Benign criteria provided, multiple submitters, no conflicts B:2
• Conservation: PhyloP100: -0.114

Genes affected

RAX (HGNC:18662): (retina and anterior neural fold homeobox) This gene encodes a homeobox-containing transcription factor that functions in eye development. The gene is expressed early in the eye primordia, and is required for retinal cell fate determination and also regulates stem cell proliferation. Mutations in this gene have been reported in patients with defects in ocular development, including microphthalmia, anophthalmia, and coloboma.[provided by RefSeq, Oct 2009]

ACMG classification

Verdict is Benign. Variant got -20 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.86).
• BP6: Variant 18-59267440-A-G is Benign according to our data. Variant chr18-59267440-A-G is described in ClinVar as [Benign]. Clinvar id is 889741.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
• BA1: GnomAdExome4 highest population allele frequency = 0.0556 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
RAX	NM_013435.3	c.*1564T>C		3_prime_UTR_variant	3/3	ENST00000334889.4	NP_038463.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
RAX	ENST00000334889.4	c.*1564T>C		3_prime_UTR_variant	3/3	1	NM_013435.3	ENSP00000334813	P1
RAX	ENST00000256852.7	c.*2036T>C		3_prime_UTR_variant	2/2	1		ENSP00000256852

Frequencies

GnomAD3 genomes AF: 0.0182 AC: 2771 AN: 152198 Hom.: 32 Cov.: 32

Gnomad AFR AF: 0.00574

Gnomad AMI AF: 0.0471

Gnomad AMR AF: 0.0192

Gnomad ASJ AF: 0.00461

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.0132

Gnomad FIN AF: 0.0182

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0278

Gnomad OTH AF: 0.0153

GnomAD4 exome AF: 0.0556 AC: 1 AN: 18 Hom.: 0 Cov.: 0 AF XY: 0.0625 AC XY: 1 AN XY: 16

Gnomad4 FIN exome AF: 0.167

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome AF: 0.0182 AC: 2769 AN: 152316 Hom.: 32 Cov.: 32 AF XY: 0.0171 AC XY: 1271 AN XY: 74486

Gnomad4 AFR AF: 0.00572

Gnomad4 AMR AF: 0.0191

Gnomad4 ASJ AF: 0.00461

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.0133

Gnomad4 FIN AF: 0.0182

Gnomad4 NFE AF: 0.0278

Gnomad4 OTH AF: 0.0152

Alfa AF: 0.0237 Hom.: 8

Bravo AF: 0.0174

Asia WGS AF: 0.00433 AC: 15 AN: 3478

ClinVar

Significance: Benign

Submissions summary: Benign:2

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

Isolated microphthalmia 3 Benign:1

Benign, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Apr 27, 2017

This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). No publications were found based on this search. Allele frequency data from public databases was too high to be consistent with this variant causing disease. Therefore, this variant is classified as benign. -

not provided Benign:1

Benign, criteria provided, single submitter

not provided

Breakthrough Genomics, Breakthrough Genomics

-

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.86
CADD	Benign	2.2
DANN	Benign	0.46

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		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: rs45567434; hg19: chr18-56934672;