21-43416851-C-T

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4_StrongBP6

The NM_173354.5(SIK1):​c.2243G>A​(p.Arg748His) 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. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R748L) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0 ( 0 hom., cov: 0)
Exomes 𝑓: 0.00013 ( 1 hom. )
Failed GnomAD Quality Control

Consequence

SIK1
NM_173354.5 missense

Scores

1
18

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:2

Conservation

PhyloP100: -0.160

Publications

0 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

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -5 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.03910002).
BP6
Variant 21-43416851-C-T is Benign according to our data. Variant chr21-43416851-C-T is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 476104.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
SIK1NM_173354.5 linkc.2243G>A p.Arg748His missense_variant Exon 14 of 14 ENST00000270162.8 NP_775490.2 P57059
SIK1XM_011529474.3 linkc.2096G>A p.Arg699His missense_variant Exon 13 of 13 XP_011527776.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
SIK1ENST00000270162.8 linkc.2243G>A p.Arg748His missense_variant Exon 14 of 14 1 NM_173354.5 ENSP00000270162.6 P57059

Frequencies

GnomAD3 genomes
AF:
0.00
AC:
0
AN:
526
Hom.:
0
Cov.:
0
Gnomad AFR
AF:
0.00
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
GnomAD2 exomes
AF:
0.0000345
AC:
8
AN:
232084
AF XY:
0.0000313
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000599
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000386
Gnomad OTH exome
AF:
0.000349
GnomAD4 exome
Data not reliable, filtered out with message: AS_VQSR
AF:
0.000125
AC:
5
AN:
39974
Hom.:
1
Cov.:
0
AF XY:
0.0000984
AC XY:
2
AN XY:
20332
show subpopulations
African (AFR)
AF:
0.000787
AC:
2
AN:
2540
American (AMR)
AF:
0.00
AC:
0
AN:
864
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
2046
East Asian (EAS)
AF:
0.00
AC:
0
AN:
3748
South Asian (SAS)
AF:
0.00
AC:
0
AN:
1366
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
1152
Middle Eastern (MID)
AF:
0.00662
AC:
2
AN:
302
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
24884
Other (OTH)
AF:
0.000326
AC:
1
AN:
3072
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.458
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
GnomAD4 genome
Data not reliable, filtered out with message: AC0;AS_VQSR
AF:
0.00
AC:
0
AN:
526
Hom.:
0
Cov.:
0
AF XY:
0.00
AC XY:
0
AN XY:
240
African (AFR)
AF:
0.00
AC:
0
AN:
214
American (AMR)
AF:
0.00
AC:
0
AN:
58
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
22
East Asian (EAS)
AF:
0.00
AC:
0
AN:
26
South Asian (SAS)
AF:
0.00
AC:
0
AN:
56
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
2
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
2
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
142
Other (OTH)
AF:
0.00
AC:
0
AN:
4
Alfa
AF:
0.0000678
Hom.:
0
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000117
AC:
1
ExAC
AF:
0.0000828
AC:
10
Asia WGS
AF:
0.000866
AC:
3
AN:
3478

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:2
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Developmental and epileptic encephalopathy, 30 Uncertain:1Benign:1
Oct 31, 2018
Fulgent Genetics, Fulgent Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Jan 15, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Inborn genetic diseases Benign:1
May 12, 2019
Ambry Genetics
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.073
BayesDel_addAF
Benign
-0.40
T
BayesDel_noAF
Benign
-0.61
CADD
Benign
0.96
DANN
Benign
0.48
DEOGEN2
Benign
0.074
T
Eigen
Benign
-1.4
Eigen_PC
Benign
-1.4
FATHMM_MKL
Benign
0.067
N
LIST_S2
Benign
0.45
T
M_CAP
Benign
0.0076
T
MetaRNN
Benign
0.039
T
MetaSVM
Benign
-0.98
T
MutationAssessor
Benign
-1.2
N
PhyloP100
-0.16
PrimateAI
Uncertain
0.51
T
PROVEAN
Benign
0.080
N
REVEL
Benign
0.044
Sift
Benign
0.26
T
Sift4G
Benign
0.26
T
Polyphen
0.0010
B
Vest4
0.094
MVP
0.28
MPC
0.17
ClinPred
0.017
T
GERP RS
-3.4
Varity_R
0.024
gMVP
0.29
Mutation Taster
=99/1
polymorphism

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

Other links and lift over

dbSNP: rs375516507; hg19: chr21-44836731; COSMIC: COSV54259707; COSMIC: COSV54259707; API