Genetic Variant NM_020680.4:c.256G>C (chr11-65525924-G-C) – ACMG Classification: Uncertain_significance (1 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2BP4

The NM_020680.4(SCYL1):c.256G>C(p.Glu86Gln) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,460,972 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 31)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

SCYL1
NM_020680.4 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 8.17

Publications

0 publications found

Variant links:

Genes affected

SCYL1 (HGNC:14372): (SCY1 like pseudokinase 1) This gene encodes a transcriptional regulator belonging to the SCY1-like family of kinase-like proteins. The protein has a divergent N-terminal kinase domain that is thought to be catalytically inactive, and can bind specific DNA sequences through its C-terminal domain. It activates transcription of the telomerase reverse transcriptase and DNA polymerase beta genes. The protein has been localized to the nucleus, and also to the cytoplasm and centrosomes during mitosis. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

SCYL1 Gene-Disease associations (from GenCC):

acute infantile liver failure-cerebellar ataxia-peripheral sensory motor neuropathy syndrome
Inheritance: AR Classification: STRONG, MODERATE, SUPPORTIVE Submitted by: G2P, Ambry Genetics, Orphanet, Labcorp Genetics (formerly Invitae)

SCYL1 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.34636796).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SCYL1	NM_020680.4 link	c.256G>C	p.Glu86Gln	missense_variant	Exon 3 of 18	ENST00000270176.10	NP_065731.3	Q96KG9-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SCYL1	ENST00000270176.10 link	c.256G>C	p.Glu86Gln	missense_variant	Exon 3 of 18	1	NM_020680.4	ENSP00000270176.5		Q96KG9-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1460972

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

726788

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33470

American (AMR)

AF:

0.00

AC:

AN:

44686

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26098

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.0000116

AC:

AN:

86172

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53004

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5766

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111720

Other (OTH)

AF:

0.00

AC:

AN:

60356

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.525

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.35

BayesDel_addAF

Benign

-0.030

BayesDel_noAF

Benign

-0.28

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.17

T;T;.;.;T

Eigen

Uncertain

0.27

Eigen_PC

Uncertain

0.35

FATHMM_MKL

Uncertain

0.95

LIST_S2

Uncertain

0.97

D;D;D;D;D

M_CAP

Benign

0.015

MetaRNN

Benign

0.35

T;T;T;T;T

MetaSVM

Benign

-0.42

PhyloP100

8.2

PrimateAI

Benign

0.47

PROVEAN

Benign

-2.1

N;N;N;N;N

REVEL

Benign

0.19

Sift

Benign

0.032

D;D;D;D;D

Sift4G

Uncertain

0.031

D;D;D;D;D

Polyphen

0.73

P;.;B;B;B

Vest4

0.25

MutPred

0.45

Loss of sheet (P = 0.0817);Loss of sheet (P = 0.0817);Loss of sheet (P = 0.0817);Loss of sheet (P = 0.0817);Loss of sheet (P = 0.0817);

MVP

0.64

MPC

0.65

ClinPred

0.94

GERP RS

4.2

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.38

gMVP

0.26

Mutation Taster

=266/34

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over