9-128823751-G-A

Position:

chr9-128823751-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 5 ACMG points: 5P and 0B. PM2PP3_ModeratePP5

The NM_016390.4(SPOUT1):c.1058C>T(p.Thr353Met) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000005 in 1,601,328 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000041 ( 0 hom. )

Consequence

SPOUT1
NM_016390.4 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications P:1U:1

Conservation

PhyloP100: 9.77

Variant links:

Genes affected

SPOUT1 (HGNC:26933): (SPOUT domain containing methyltransferase 1) Enables miRNA binding activity. Involved in maintenance of centrosome location and production of miRNAs involved in gene silencing by miRNA. Located in kinetochore; mitotic spindle; and spindle pole centrosome. [provided by Alliance of Genome Resources, Apr 2022]

SPOUT1 links:

KYAT1-SPOUT1 (HGNC:):

KYAT1-SPOUT1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 5 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.897

PP5

Variant 9-128823751-G-A is Pathogenic according to our data. Variant chr9-128823751-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 3252018.We mark this variant Likely_pathogenic, oryginal submissions are: {Likely_pathogenic=1, Uncertain_significance=1}.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
SPOUT1	NM_016390.4 linkuse as main transcript	c.1058C>T	p.Thr353Met	missense_variant	11/12	ENST00000361256.10
KYAT1-SPOUT1	NR_182311.1 linkuse as main transcript	n.2969C>T		non_coding_transcript_exon_variant	24/25
KYAT1-SPOUT1	NM_001414398.1 linkuse as main transcript	c.2405C>T	p.Thr802Met	missense_variant	22/23
KYAT1-SPOUT1	NR_182310.1 linkuse as main transcript	n.3001C>T		non_coding_transcript_exon_variant	24/25

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris
SPOUT1	ENST00000361256.10 linkuse as main transcript	c.1058C>T	p.Thr353Met	missense_variant	11/12	1	NM_016390.4	P1
SPOUT1	ENST00000467582.1 linkuse as main transcript	c.155+321C>T		intron_variant		2
SPOUT1	ENST00000480366.1 linkuse as main transcript	n.621C>T		non_coding_transcript_exon_variant	5/6	2

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152118

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

Gnomad AMI

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

GnomAD4 exome

AF:

0.00000414

AC:

AN:

1449210

Hom.:

Cov.:

AF XY:

0.00000556

AC XY:

AN XY:

719770

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000236

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000255

Gnomad4 SAS exome

AF:

0.0000238

Gnomad4 FIN exome

AF:

0.0000194

Gnomad4 NFE exome

AF:

9.03e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152118

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74288

show subpopulations

Gnomad4 AFR

AF:

0.0000483

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000434

Hom.:

Bravo

AF:

0.0000227

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Pathogenic:1Uncertain:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Neurodevelopmental disorder

Pathogenic:1

Likely pathogenic, criteria provided, single submitter

clinical testing

Columbia University Laboratory of Personalized Genomic Medicine, Columbia University Medical Center

Jul 05, 2024

Based on ACMG Variant Interpretation Guidelines: PS3, PM2, PM3, PP3 -

SPOUT1-associated neurodevelopmental disorder

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Institute of Human Genetics, University of Leipzig Medical Center

Jul 24, 2024

This variant was identified as homozygous. Two affected brothers, consanguinous parents -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.71

BayesDel_addAF

Pathogenic

0.42

BayesDel_noAF

Pathogenic

0.20

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.59

Eigen

Pathogenic

0.85

Eigen_PC

Pathogenic

0.74

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Pathogenic

1.0

M_CAP

Benign

0.040

MetaRNN

Pathogenic

0.90

MetaSVM

Uncertain

-0.021

MutationTaster

Benign

1.0

PROVEAN

Pathogenic

-5.5

REVEL

Uncertain

0.64

Sift

Pathogenic

0.0

Sift4G

Pathogenic

0.0010

Polyphen

1.0

Vest4

0.95

MutPred

0.66

Loss of phosphorylation at T353 (P = 0.0777);

MVP

0.70

MPC

1.2

ClinPred

0.97

GERP RS

4.6

Varity_R

0.81

gMVP

0.87

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

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over