Variant 9-127690673-T-C details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 0P and 14B. BP4_StrongBP6_ModerateBS1BS2

The NM_001032221.6(STXBP1):c.1703-102T>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000259 in 1,239,558 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.00022 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00026 ( 0 hom. )

Consequence

STXBP1
NM_001032221.6 intron

Scores

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.0640

Variant links:

Genes affected

STXBP1 (HGNC:11444): (syntaxin binding protein 1) This gene encodes a syntaxin-binding protein. The encoded protein appears to play a role in release of neurotransmitters via regulation of syntaxin, a transmembrane attachment protein receptor. Mutations in this gene have been associated with infantile epileptic encephalopathy-4. Alternatively spliced transcript variants have been described. [provided by RefSeq, Feb 2010]

STXBP1 links:

PTRH1 (HGNC:27039): (peptidyl-tRNA hydrolase 1 homolog) Enables RNA binding activity. [provided by Alliance of Genome Resources, Apr 2022]

PTRH1 links:

ENSG00000279571 (HGNC:):

ENSG00000279571 links:

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -14 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.58).

BP6

Variant 9-127690673-T-C is Benign according to our data. Variant chr9-127690673-T-C is described in ClinVar as [Likely_benign]. Clinvar id is 1253857.Status of the report is criteria_provided_single_submitter, 1 stars.

BS1

Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.000225 (34/151382) while in subpopulation NFE AF= 0.000369 (25/67792). AF 95% confidence interval is 0.000256. There are 0 homozygotes in gnomad4. There are 14 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

BS2

High AC in GnomAd4 at 34 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
STXBP1	NM_003165.6 linkuse as main transcript	c.*17-102T>C		intron_variant		ENST00000373302.8	NP_003156.1	P61764-2
STXBP1	NM_001032221.6 linkuse as main transcript	c.1703-102T>C		intron_variant		ENST00000373299.5	NP_001027392.1	P61764-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
STXBP1	ENST00000373302.8 linkuse as main transcript	c.*17-102T>C		intron_variant		1	NM_003165.6	ENSP00000362399.3		P61764-2
STXBP1	ENST00000373299.5 linkuse as main transcript	c.1703-102T>C		intron_variant		1	NM_001032221.6	ENSP00000362396.2		P61764-1

Frequencies

GnomAD3 genomes

AF:

0.000225

AC:

AN:

151382

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000122

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000197

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:

0.000369

Gnomad OTH

AF:

0.000481

GnomAD3 exomes

AF:

0.000173

AC:

AN:

249002

Hom.:

AF XY:

0.000170

AC XY:

AN XY:

135044

show subpopulations

Gnomad AFR exome

AF:

0.0000633

Gnomad AMR exome

AF:

0.0000580

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000348

Gnomad OTH exome

AF:

0.000165

GnomAD4 exome

AF:

0.000264

AC:

287

AN:

1088176

Hom.:

Cov.:

AF XY:

0.000265

AC XY:

148

AN XY:

558284

show subpopulations

Gnomad4 AFR exome

AF:

0.0000385

Gnomad4 AMR exome

AF:

0.0000679

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000360

Gnomad4 OTH exome

AF:

0.000104

GnomAD4 genome

AF:

0.000225

AC:

AN:

151382

Hom.:

Cov.:

AF XY:

0.000189

AC XY:

AN XY:

73924

show subpopulations

Gnomad4 AFR

AF:

0.000122

Gnomad4 AMR

AF:

0.000197

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000369

Gnomad4 OTH

AF:

0.000481

Alfa

AF:

0.0000727

Hom.:

Bravo

AF:

0.000212

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

GeneDx

Jan 18, 2021

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.58

CADD

Benign

4.1

DANN

Benign

0.65

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