12-100312552-T-G

Variant names:

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BS1_Supporting

The NM_017988.6(SCYL2):c.751T>G(p.Ser251Ala) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000682 in 1,612,938 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: 33)

Exomes 𝑓: 0.0000068 ( 0 hom. )

Consequence

SCYL2
NM_017988.6 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.82

Variant links:

Genes affected

SCYL2 (HGNC:19286): (SCY1 like pseudokinase 2) The protein encoded by this gene associates with clathrin-coated complexes at the plasma membrane and with endocytic coated vesicles. The encoded protein phosphorylates the beta2 subunit of the plasma membrane adapter complex AP2 and interacts with clathrin, showing involvement in clathrin-dependent pathways between the trans-Golgi network and the endosomal system. In addition, this protein has a role in the Wnt signaling pathway by targeting frizzled 5 (Fzd5) for lysosomal degradation. Two transcript variants encoding the same protein have been found for this gene. [provided by RefSeq, Dec 2015]

SCYL2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BS1

Variant frequency is greater than expected in population eas. gnomad4_exome allele frequency = 0.00000685 (10/1460736) while in subpopulation EAS AF= 0.000227 (9/39624). AF 95% confidence interval is 0.000118. There are 0 homozygotes in gnomad4_exome. There are 5 alleles in male gnomad4_exome subpopulation. Median coverage is 30. This position pass quality control queck. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SCYL2	NM_017988.6 link	c.751T>G	p.Ser251Ala	missense_variant	Exon 6 of 18	ENST00000360820.7	NP_060458.3	Q6P3W7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
SCYL2	ENST00000360820.7 link	c.751T>G	p.Ser251Ala	missense_variant	Exon 6 of 18	1	NM_017988.6	ENSP00000354061.2	Q6P3W7
SCYL2	ENST00000635101.1 link	c.751T>G	p.Ser251Ala	missense_variant	Exon 6 of 19	5		ENSP00000489123.1	A0A0U1RQQ9
SCYL2	ENST00000549687.5 link	c.751T>G	p.Ser251Ala	missense_variant	Exon 6 of 17	2		ENSP00000448366.1	F8VSC5
SCYL2	ENST00000548392.5 link	c.*4T>G		downstream_gene_variant		4		ENSP00000450294.1	F8VPW3

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152202

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:

0.000193

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000557

AC:

AN:

251258

Hom.:

AF XY:

0.0000589

AC XY:

AN XY:

135822

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000761

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000685

AC:

AN:

1460736

Hom.:

Cov.:

AF XY:

0.00000688

AC XY:

AN XY:

726768

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000227

Gnomad4 SAS exome

AF:

0.0000116

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:

152202

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74356

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000193

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000227

ExAC

AF:

0.0000577

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Inborn genetic diseases

Uncertain:1

Jan 09, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.751T>G (p.S251A) alteration is located in exon 6 (coding exon 5) of the SCYL2 gene. This alteration results from a T to G substitution at nucleotide position 751, causing the serine (S) at amino acid position 251 to be replaced by an alanine (A). 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

Benign

0.16

BayesDel_addAF

Benign

-0.068

BayesDel_noAF

Uncertain

0.050

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.056

T;T;T

Eigen

Uncertain

0.43

Eigen_PC

Uncertain

0.54

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Uncertain

0.93

D;D;D

M_CAP

Benign

0.020

MetaRNN

Uncertain

0.45

T;T;T

MetaSVM

Benign

-0.41

MutationAssessor

Benign

2.0

.;.;M

PrimateAI

Uncertain

0.68

PROVEAN

Benign

-2.1

N;.;N

REVEL

Uncertain

0.54

Sift

Benign

0.11

T;.;T

Sift4G

Benign

0.17

T;T;T

Polyphen

0.43

.;.;B

Vest4

0.71, 0.70

MutPred

0.78

Gain of catalytic residue at S247 (P = 0);Gain of catalytic residue at S247 (P = 0);Gain of catalytic residue at S247 (P = 0);

MVP

0.78

MPC

0.62

ClinPred

0.17

GERP RS

6.0

Varity_R

0.23

gMVP

0.75

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.090

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