Genetic Variant SYBU:p.Thr450Asn (chr8-109575549-G-T) – ACMG Classification: Likely_benign (-6 pts)

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_001099754.2(SYBU):c.1349C>A(p.Thr450Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000026 in 1,461,894 control chromosomes in the GnomAD database, including 2 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 Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.000026 ( 2 hom. )

Consequence

SYBU
NM_001099754.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.34

Publications

0 publications found

Variant links:

Genes affected

SYBU (HGNC:26011): (syntabulin) Syntabulin/GOLSYN is part of a kinesin motor-adaptor complex that is critical for the anterograde axonal transport of active zone components and contributes to activity-dependent presynaptic assembly during neuronal development (Cai et al., 2007 [PubMed 17611281]).[supplied by OMIM, Mar 2008]

SYBU links:

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ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -6 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.0898262).

BS2

High Homozygotes in GnomAdExome4 at 2 AR gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001099754.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
SYBU	NM_001099754.2	MANE Select	c.1349C>A	p.Thr450Asn	missense	Exon 7 of 7	NP_001093224.1	Q9NX95-1
SYBU	NM_001099744.2		c.1349C>A	p.Thr450Asn	missense	Exon 8 of 8	NP_001093214.1	Q9NX95-1
SYBU	NM_001099745.2		c.1349C>A	p.Thr450Asn	missense	Exon 8 of 8	NP_001093215.1	Q9NX95-1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
SYBU	ENST00000276646.14	TSL:1 MANE Select	c.1349C>A	p.Thr450Asn	missense	Exon 7 of 7	ENSP00000276646.9	Q9NX95-1
SYBU	ENST00000424158.6	TSL:1	c.1364C>A	p.Thr455Asn	missense	Exon 9 of 9	ENSP00000415654.2	A0A0C4DG86
SYBU	ENST00000446070.6	TSL:1	c.1346C>A	p.Thr449Asn	missense	Exon 8 of 8	ENSP00000414748.2	Q9NX95-3

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.0000441

AC:

AN:

249568

AF XY:

0.0000739

show subpopulations

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 FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000260

AC:

AN:

1461894

Hom.:

Cov.:

AF XY:

0.0000454

AC XY:

AN XY:

727248

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.00

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:

0.000406

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53420

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00000180

AC:

AN:

1112012

Other (OTH)

AF:

0.0000166

AC:

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.496

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<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

Cov.:

Alfa

AF:

0.0000508

Hom.:

Bravo

AF:

0.00000756

ExAC

AF:

0.0000495

AC:

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

not specified (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.11

BayesDel_addAF

Benign

-0.43

BayesDel_noAF

Benign

-0.55

CADD

Benign

(source)

DANN

Benign

0.91

DEOGEN2

Benign

0.083

Eigen

Benign

-0.33

Eigen_PC

Benign

-0.42

FATHMM_MKL

Uncertain

0.83

LIST_S2

Benign

0.79

M_CAP

Benign

0.0034

MetaRNN

Benign

0.090

MetaSVM

Benign

-1.0

MutationAssessor

Uncertain

2.1

PhyloP100

3.3

PrimateAI

Benign

0.25

PROVEAN

Benign

-1.3

REVEL

Benign

0.076

Sift

Benign

0.048

Sift4G

Benign

0.34

Polyphen

0.85

Vest4

0.17

MutPred

0.25

Loss of glycosylation at T450 (P = 0.0348)

MVP

0.14

MPC

0.53

ClinPred

0.074

GERP RS

3.0

Varity_R

0.051

gMVP

0.066

Mutation Taster

=82/18

polymorphism

(source)

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

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

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over