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chr16-89932550-C-G

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 0P and 14B. BP4_StrongBP6_ModerateBA1

The NM_006086.4(TUBB3):​c.58-21C>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0048 in 1,608,064 control chromosomes in the GnomAD database, including 244 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: 𝑓 0.024 ( 125 hom., cov: 33)
Exomes 𝑓: 0.0028 ( 119 hom. )

Consequence

TUBB3
NM_006086.4 intron

Scores

2

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: -1.01
Variant links:
Genes affected
TUBB3 (HGNC:20772): (tubulin beta 3 class III) This gene encodes a class III member of the beta tubulin protein family. Beta tubulins are one of two core protein families (alpha and beta tubulins) that heterodimerize and assemble to form microtubules. This protein is primarily expressed in neurons and may be involved in neurogenesis and axon guidance and maintenance. Mutations in this gene are the cause of congenital fibrosis of the extraocular muscles type 3. Alternate splicing results in multiple transcript variants. A pseudogene of this gene is found on chromosome 6. [provided by RefSeq, Oct 2010]

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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=-0.79).
BP6
Variant 16-89932550-C-G is Benign according to our data. Variant chr16-89932550-C-G is described in ClinVar as [Benign]. Clinvar id is 1227568.Status of the report is criteria_provided_single_submitter, 1 stars. Variant chr16-89932550-C-G is described in Lovd as [Benign].
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.0772 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TUBB3NM_006086.4 linkuse as main transcriptc.58-21C>G intron_variant ENST00000315491.12
TUBB3NM_001197181.2 linkuse as main transcriptc.-159-21C>G intron_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TUBB3ENST00000315491.12 linkuse as main transcriptc.58-21C>G intron_variant 1 NM_006086.4 P1Q13509-1

Frequencies

GnomAD3 genomes
AF:
0.0235
AC:
3578
AN:
152216
Hom.:
125
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0796
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00805
Gnomad ASJ
AF:
0.0288
Gnomad EAS
AF:
0.000192
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.000377
Gnomad MID
AF:
0.00633
Gnomad NFE
AF:
0.000353
Gnomad OTH
AF:
0.0120
GnomAD3 exomes
AF:
0.00692
AC:
1731
AN:
250308
Hom.:
56
AF XY:
0.00549
AC XY:
744
AN XY:
135588
show subpopulations
Gnomad AFR exome
AF:
0.0826
Gnomad AMR exome
AF:
0.00307
Gnomad ASJ exome
AF:
0.0203
Gnomad EAS exome
AF:
0.0000544
Gnomad SAS exome
AF:
0.000327
Gnomad FIN exome
AF:
0.000277
Gnomad NFE exome
AF:
0.000363
Gnomad OTH exome
AF:
0.00458
GnomAD4 exome
AF:
0.00284
AC:
4129
AN:
1455730
Hom.:
119
Cov.:
30
AF XY:
0.00255
AC XY:
1847
AN XY:
724594
show subpopulations
Gnomad4 AFR exome
AF:
0.0816
Gnomad4 AMR exome
AF:
0.00353
Gnomad4 ASJ exome
AF:
0.0215
Gnomad4 EAS exome
AF:
0.0000504
Gnomad4 SAS exome
AF:
0.000267
Gnomad4 FIN exome
AF:
0.000320
Gnomad4 NFE exome
AF:
0.000207
Gnomad4 OTH exome
AF:
0.00663
GnomAD4 genome
AF:
0.0235
AC:
3583
AN:
152334
Hom.:
125
Cov.:
33
AF XY:
0.0233
AC XY:
1732
AN XY:
74482
show subpopulations
Gnomad4 AFR
AF:
0.0795
Gnomad4 AMR
AF:
0.00804
Gnomad4 ASJ
AF:
0.0288
Gnomad4 EAS
AF:
0.000193
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.000377
Gnomad4 NFE
AF:
0.000353
Gnomad4 OTH
AF:
0.0118
Alfa
AF:
0.00332
Hom.:
2
Bravo
AF:
0.0262

ClinVar

Significance: Benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Benign:1
Benign, criteria provided, single submitterclinical testingGeneDxJul 21, 2018- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.79
CADD
Benign
0.50
DANN
Benign
0.91
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1

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.

Other links and lift over

dbSNP: rs78656983; hg19: chr16-89998958; API