Genetic Variant SCYL3:p.Phe662Leu (chr1-169854293-A-G) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

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

The NM_020423.7(SCYL3):c.1984T>C(p.Phe662Leu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000249 in 1,606,324 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

SCYL3
NM_020423.7 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 8.54

Variant links:

Genes affected

SCYL3 (HGNC:19285): (SCY1 like pseudokinase 3) This gene encodes a protein with a kinase domain and four HEAT repeats. The encoded protein interacts with the C-terminal domain of ezrin, an ERM protein, and may play a role in cell adhesion and migration. Alternative splicing results in multiple transcript variants encoding multiple isoforms. [provided by RefSeq, Jun 2012]

SCYL3 links:

FIRRM (HGNC:25565): (FIGNL1 interacting regulator of recombination and mitosis)

FIRRM links:

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ACMG classification

Classification made for transcript

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 rank	MANE	Protein	UniProt
SCYL3	NM_020423.7 link	c.1984T>C	p.Phe662Leu	missense_variant	Exon 12 of 13	ENST00000367771.11	NP_065156.5	Q8IZE3-2
FIRRM	NM_001320047.2 link	c.*1306A>G		downstream_gene_variant		ENST00000359326.9	NP_001306976.1	Q9NSG2-1A0A024R922

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SCYL3	ENST00000367771.11 link	c.1984T>C	p.Phe662Leu	missense_variant	Exon 12 of 13	1	NM_020423.7	ENSP00000356745.5		Q8IZE3-2
C1orf112	ENST00000359326.9 link	c.*1306A>G		downstream_gene_variant		1	NM_001320047.2	ENSP00000352276.4		Q9NSG2-1

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152166

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.00000206

AC:

AN:

1454158

Hom.:

Cov.:

AF XY:

0.00000277

AC XY:

AN XY:

723140

show subpopulations

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:

0.0000355

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152166

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74336

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000207

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Dec 06, 2021

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.2146T>C (p.F716L) alteration is located in exon 13 (coding exon 12) of the SCYL3 gene. This alteration results from a T to C substitution at nucleotide position 2146, causing the phenylalanine (F) at amino acid position 716 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

0.96

BayesDel_addAF

Uncertain

0.13

BayesDel_noAF

Uncertain

-0.050

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Benign

0.17

.;T;T

Eigen

Pathogenic

0.81

Eigen_PC

Pathogenic

0.81

FATHMM_MKL

Pathogenic

1.0

LIST_S2

Uncertain

0.89

D;.;D

M_CAP

Benign

0.024

MetaRNN

Uncertain

0.74

D;D;D

MetaSVM

Benign

-0.51

MutationAssessor

Uncertain

2.7

.;M;M

PrimateAI

Uncertain

0.72

PROVEAN

Uncertain

-2.4

N;D;D

REVEL

Uncertain

0.38

Sift

Pathogenic

0.0

D;D;D

Sift4G

Pathogenic

0.0

D;D;D

Polyphen

1.0

D;D;D

Vest4

0.63

MutPred

0.76

.;Loss of methylation at K715 (P = 0.0399);Loss of methylation at K715 (P = 0.0399);

MVP

0.42

MPC

0.84

ClinPred

0.99

GERP RS

5.8

Varity_R

0.57

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

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over