1-47280441-T-C

Variant names:

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B.

-20

BP4_StrongBP6_Very_StrongBS1BS2

The NM_001048166.1(STIL):c.2017A>G(p.Ser673Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00212 in 1,614,220 control chromosomes in the GnomAD database, including 49 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.011 ( 27 hom., cov: 32)

Exomes 𝑓: 0.0012 ( 22 hom. )

Consequence

STIL
NM_001048166.1 missense

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:7

Conservation

PhyloP100: -0.978

Publications

6 publications found

Variant links:

Genes affected

STIL (HGNC:10879): (STIL centriolar assembly protein) This gene encodes a cytoplasmic protein implicated in regulation of the mitotic spindle checkpoint, a regulatory pathway that monitors chromosome segregation during cell division to ensure the proper distribution of chromosomes to daughter cells. The protein is phosphorylated in mitosis and in response to activation of the spindle checkpoint, and disappears when cells transition to G1 phase. It interacts with a mitotic regulator, and its expression is required to efficiently activate the spindle checkpoint. It is proposed to regulate Cdc2 kinase activity during spindle checkpoint arrest. Chromosomal deletions that fuse this gene and the adjacent locus commonly occur in T cell leukemias, and are thought to arise through illegitimate V-(D)-J recombination events. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

STIL Gene-Disease associations (from GenCC):

autosomal recessive primary microcephaly
Inheritance: AR Classification: DEFINITIVE, SUPPORTIVE Submitted by: ClinGen, Orphanet
microcephaly 7, primary, autosomal recessive
Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae), G2P
holoprosencephaly
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

STIL links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -20 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.0028458238).

BP6

Variant 1-47280441-T-C is Benign according to our data. Variant chr1-47280441-T-C is described in ClinVar as [Likely_benign]. Clinvar id is 160053.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.0106 (1620/152328) while in subpopulation AFR AF = 0.0371 (1541/41564). AF 95% confidence interval is 0.0355. There are 27 homozygotes in GnomAd4. There are 744 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

BS2

High Homozygotes in GnomAd4 at 27 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
STIL	NM_001048166.1 link	c.2017A>G	p.Ser673Gly	missense_variant	Exon 12 of 17	ENST00000371877.8	NP_001041631.1	Q15468-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
STIL	ENST00000371877.8 link	c.2017A>G	p.Ser673Gly	missense_variant	Exon 12 of 17	1	NM_001048166.1	ENSP00000360944.3		Q15468-2

Frequencies

GnomAD3 genomes

AF:

0.0106

AC:

1616

AN:

152210

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0371

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00327

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00633

Gnomad NFE

AF:

0.000162

Gnomad OTH

AF:

0.00765

GnomAD2 exomes

AF:

0.00301

AC:

758

AN:

251460

AF XY:

0.00229

show subpopulations

Gnomad AFR exome

AF:

0.0386

Gnomad AMR exome

AF:

0.00199

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000378

Gnomad OTH exome

AF:

0.00293

GnomAD4 exome

AF:

0.00123

AC:

1805

AN:

1461892

Hom.:

Cov.:

AF XY:

0.00108

AC XY:

782

AN XY:

727248

show subpopulations

African (AFR)

AF:

0.0403

AC:

1349

AN:

33480

American (AMR)

AF:

0.00219

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.0000812

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53420

Middle Eastern (MID)

AF:

0.00399

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.000155

AC:

172

AN:

1112010

Other (OTH)

AF:

0.00258

AC:

156

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.478

Heterozygous variant carriers

135

270

404

539

674

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

138

184

230

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.0106

AC:

1620

AN:

152328

Hom.:

Cov.:

AF XY:

0.00999

AC XY:

744

AN XY:

74504

show subpopulations

African (AFR)

AF:

0.0371

AC:

1541

AN:

41564

American (AMR)

AF:

0.00327

AC:

AN:

15296

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5192

South Asian (SAS)

AF:

0.00

AC:

AN:

4830

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10628

Middle Eastern (MID)

AF:

0.00680

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000162

AC:

AN:

68030

Other (OTH)

AF:

0.00757

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.502

Heterozygous variant carriers

146

218

291

364

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

100

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.00422

Hom.:

Bravo

AF:

0.0127

ESP6500AA

AF:

0.0374

AC:

165

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.00385

AC:

467

Asia WGS

AF:

0.00260

AC:

AN:

3478

EpiCase

AF:

0.000436

EpiControl

AF:

0.000356

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:7

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:3

Oct 27, 2015

Center for Pediatric Genomic Medicine, Children's Mercy Hospital and Clinics

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Breakthrough Genomics, Breakthrough Genomics

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:not provided

- -

Jan 27, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

not specified

Benign:2

Feb 08, 2013

Genetic Services Laboratory, University of Chicago

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Sep 18, 2015

GeneDx

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Microcephaly 7, primary, autosomal recessive

Benign:2

Apr 27, 2017

Illumina Laboratory Services, Illumina

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). Publications were found based on this search. The evidence from the literature, in combination with allele frequency data from public databases where available, was sufficient to rule this variant out of causing disease. Therefore, this variant is classified as benign. -

Sep 28, 2021

Fulgent Genetics, Fulgent Genetics

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.055

BayesDel_addAF

Benign

-0.62

BayesDel_noAF

Benign

-0.64

CADD

Benign

0.025

(source)

DANN

Benign

0.57

DEOGEN2

Benign

0.14

T;.;.;.;T

Eigen

Benign

-1.7

Eigen_PC

Benign

-1.8

FATHMM_MKL

Benign

0.039

LIST_S2

Benign

0.53

T;T;T;T;T

MetaRNN

Benign

0.0028

T;T;T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

-0.35

N;.;N;.;.

PhyloP100

-0.98

PrimateAI

Benign

0.23

PROVEAN

Benign

-0.62

N;.;N;N;N

REVEL

Benign

0.012

Sift

Benign

0.65

T;.;T;T;T

Sift4G

Benign

0.44

T;T;T;T;.

Polyphen

0.0

B;.;B;B;B

Vest4

0.073

MVP

0.22

MPC

0.093

ClinPred

0.000015

GERP RS

-7.1

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.015

gMVP

0.091

Mutation Taster

=100/0

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.030

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over