1-47302242-G-T

Position:

• chr1-47302242-G-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_001048166.1(STIL):​c.257C>A​(p.Ala86Glu) variant causes a missense change. The variant allele was found at a frequency of 0.000000685 in 1,458,960 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 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. A86V) has been classified as Benign.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.9e-7 (0 hom.)
• Consequence: STIL NM_001048166.1 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 5.35

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 (HGNC:):

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.190613).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
STIL	NM_001048166.1	c.257C>A	p.Ala86Glu	missense_variant	4/17	ENST00000371877.8	NP_001041631.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
STIL	ENST00000371877.8	c.257C>A	p.Ala86Glu	missense_variant	4/17	1	NM_001048166.1	ENSP00000360944.3

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD3 exomes AF: 0.00000398 AC: 1 AN: 251140 Hom.: 0 AF XY: 0.00 AC XY: 0 AN XY: 135756

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.0000327

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 6.85e-7 AC: 1 AN: 1458960 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 725996

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.0000116

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.22
BayesDel_addAF	Benign	-0.045	T
BayesDel_noAF	Benign	-0.21
CADD	Benign	22
DANN	Uncertain	0.98
DEOGEN2	Benign	0.17	T;.;.;.;T;.
Eigen	Benign	-0.41
Eigen_PC	Benign	-0.25
FATHMM_MKL	Uncertain	0.89	D
LIST_S2	Benign	0.39	T;T;T;T;T;T
M_CAP	Benign	0.027	D
MetaRNN	Benign	0.19	T;T;T;T;T;T
MetaSVM	Benign	-0.97	T
MutationAssessor	Benign	0.0	N;.;N;.;.;.
PrimateAI	Benign	0.36	T
PROVEAN	Benign	-1.5	N;N;N;N;N;N
REVEL	Benign	0.28
Sift	Uncertain	0.0010	D;D;D;D;D;D
Sift4G	Uncertain	0.0020	D;D;D;D;.;.
Polyphen		0.49	P;.;P;B;B;.
Vest4		0.44
MutPred		0.45		Gain of disorder (P = 0.0203);Gain of disorder (P = 0.0203);Gain of disorder (P = 0.0203);Gain of disorder (P = 0.0203);Gain of disorder (P = 0.0203);.;
MVP		0.41
MPC		0.16
ClinPred		0.45	T
GERP RS		5.4
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.32
gMVP		0.74

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: rs3125630; hg19: chr1-47767914;