rs1553176425

chr1-47282409-G-C

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 4P and 1B. PM1 PM2 BP4

The NM_001048166.1(STIL):c.1184C>G(p.Ser395Cys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: STIL NM_001048166.1 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 7.27

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]

ACMG classification

Verdict is Uncertain_significance. Variant got 3 ACMG points.

• PM1: In a modified_residue Phosphoserine (size 0) in uniprot entity STIL_HUMAN
• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.4132073).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
STIL	NM_001048166.1	c.1184C>G	p.Ser395Cys	missense_variant	11/17	ENST00000371877.8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
STIL	ENST00000371877.8	c.1184C>G	p.Ser395Cys	missense_variant	11/17	1	NM_001048166.1	P5

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Genetic Services Laboratory, University of Chicago

Mar 02, 2017

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.15
BayesDel_addAF	Uncertain	0.039	T
BayesDel_noAF	Benign	-0.18
Cadd	Pathogenic	26
Dann	Uncertain	0.99
DEOGEN2	Uncertain	0.58	D;.;.;.;T
Eigen	Pathogenic	0.77
Eigen_PC	Pathogenic	0.74
FATHMM_MKL	Pathogenic	1.0	D
LIST_S2	Uncertain	0.88	D;D;D;D;D
M_CAP	Benign	0.039	D
MetaRNN	Benign	0.41	T;T;T;T;T
MetaSVM	Uncertain	-0.23	T
MutationAssessor	Uncertain	2.6	M;.;M;.;.
MutationTaster	Benign	1.0	D;D;D;D;D
PrimateAI	Benign	0.37	T
PROVEAN	Uncertain	-3.3	D;.;D;D;D
REVEL	Uncertain	0.34
Sift	Uncertain	0.0010	D;.;D;D;D
Sift4G	Pathogenic	0.0010	D;D;D;D;.
Polyphen		1.0	D;.;D;D;D
Vest4		0.41
MutPred		0.22		Loss of phosphorylation at S395 (P = 0.0151);.;Loss of phosphorylation at S395 (P = 0.0151);Loss of phosphorylation at S395 (P = 0.0151);.;
MVP		0.83
MPC		0.25
ClinPred		0.87	D
GERP RS		5.7
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.41
gMVP		0.46

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

LitVar

Other links and lift over

dbSNP: rs1553176425; hg19: chr1-47748081; COSMIC: COSV54551410; COSMIC: COSV54551410;