Genetic Variant SIK1:p.Ala753Thr (chr21-43416837-C-T) – ACMG Classification: Likely_benign (-4 pts)

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong

The NM_173354.5(SIK1):c.2257G>A(p.Ala753Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A753S) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0023 ( 0 hom., cov: 0)

Failed GnomAD Quality Control

Consequence

SIK1
NM_173354.5 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.0640

Publications

1 publications found

Variant links:

Genes affected

SIK1 (HGNC:11142): (salt inducible kinase 1) This gene encodes a serine/threonine protein kinase that contains a ubiquitin-associated (UBA) domain. The encoded protein is a member of the adenosine monophosphate-activated kinase (AMPK) subfamily of kinases that play a role in conserved signal transduction pathways. A mutation in this gene is associated with early infantile epileptic encephalopathy 30. [provided by RefSeq, Nov 2016]

SIK1 Gene-Disease associations (from GenCC):

developmental and epileptic encephalopathy, 30
Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: G2P, Labcorp Genetics (formerly Invitae)
early myoclonic encephalopathy
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
genetic developmental and epileptic encephalopathy
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
infantile spasms
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
generalized epilepsy
Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics

SIK1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.06255603).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SIK1	NM_173354.5 link	c.2257G>A	p.Ala753Thr	missense_variant	Exon 14 of 14	ENST00000270162.8	NP_775490.2	P57059
SIK1	XM_011529474.3 link	c.2110G>A	p.Ala704Thr	missense_variant	Exon 13 of 13		XP_011527776.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SIK1	ENST00000270162.8 link	c.2257G>A	p.Ala753Thr	missense_variant	Exon 14 of 14	1	NM_173354.5	ENSP00000270162.6		P57059

Frequencies

GnomAD3 genomes

AF:

0.00225

AC:

AN:

444

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00543

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

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

GnomAD4 exome

Cov.:

GnomAD4 genome

Data not reliable, filtered out with message: AS_VQSR

AF:

0.00225

AC:

AN:

444

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

208

show subpopulations

African (AFR)

AF:

0.00543

AC:

AN:

184

American (AMR)

AF:

0.00

AC:

AN:

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

East Asian (EAS)

AF:

0.00

AC:

AN:

South Asian (SAS)

AF:

0.00

AC:

AN:

European-Finnish (FIN)

AF:

0.00

AC:

AN:

Middle Eastern (MID)

AF:

0.00

AC:

AN:

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

112

Other (OTH)

AF:

0.00

AC:

AN:

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

Alfa

AF:

0.00

Hom.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.080

BayesDel_addAF

Benign

-0.20

BayesDel_noAF

Benign

-0.52

CADD

Benign

7.4

(source)

DANN

Benign

0.97

DEOGEN2

Benign

0.078

Eigen

Benign

-0.74

Eigen_PC

Benign

-0.67

FATHMM_MKL

Benign

0.53

LIST_S2

Benign

0.54

M_CAP

Benign

0.042

MetaRNN

Benign

0.063

MetaSVM

Benign

-0.99

MutationAssessor

Benign

0.69

PhyloP100

-0.064

PrimateAI

Uncertain

0.52

PROVEAN

Benign

-0.19

REVEL

Benign

0.067

Sift

Benign

0.039

Sift4G

Benign

0.28

Polyphen

0.085

Vest4

0.037

MutPred

0.19

Gain of phosphorylation at A753 (P = 0.0219);

MVP

0.26

MPC

0.15

ClinPred

0.092

GERP RS

-1.1

Varity_R

0.038

gMVP

0.36

Mutation Taster

=95/5

polymorphism

(source)

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

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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