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GeneBe

10-47347-C-T

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 1P and 4B. PP2BP4_Strong

The NM_177987.3(TUBB8):c.1045G>A(p.Val349Ile) variant causes a missense change. The variant allele was found at a frequency of 0.00000549 in 1,457,114 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 11/17 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0030 ( 0 hom., cov: 27)
Exomes 𝑓: 0.0000055 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

TUBB8
NM_177987.3 missense

Scores

2
13

Clinical Significance

Uncertain significance criteria provided, single submitter P:1U:1

Conservation

PhyloP100: 3.98
Variant links:
Genes affected
TUBB8 (HGNC:20773): (tubulin beta 8 class VIII) The protein encoded by this gene represents the primary beta-tubulin subunit of oocytes and the early embryo. Defects in this gene, which is primate-specific, are a cause of oocyte maturation defect 2 and infertility. [provided by RefSeq, Mar 2016]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PP2
Missense variant where missense usually causes diseases, TUBB8
BP4
Computational evidence support a benign effect (MetaRNN=0.016935527).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TUBB8NM_177987.3 linkuse as main transcriptc.1045G>A p.Val349Ile missense_variant 4/4 ENST00000568584.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TUBB8ENST00000568584.6 linkuse as main transcriptc.1045G>A p.Val349Ile missense_variant 4/41 NM_177987.3 P1
TUBB8ENST00000564130.2 linkuse as main transcriptc.943G>A p.Val315Ile missense_variant 4/45
TUBB8ENST00000568866.5 linkuse as main transcriptc.934G>A p.Val312Ile missense_variant 3/35
TUBB8ENST00000561967.1 linkuse as main transcriptc.*708G>A 3_prime_UTR_variant 4/45

Frequencies

GnomAD3 genomes
AF:
0.00
AC:
427
AN:
141612
Hom.:
0
Cov.:
27
FAILED QC
Gnomad AFR
AF:
0.0118
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00103
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000197
Gnomad SAS
AF:
0.000221
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000451
Gnomad OTH
AF:
0.00153
GnomAD4 exome
AF:
0.00000549
AC:
8
AN:
1457114
Hom.:
0
Cov.:
31
AF XY:
0.00000138
AC XY:
1
AN XY:
724720
show subpopulations
Gnomad4 AFR exome
AF:
0.000220
Gnomad4 AMR exome
AF:
0.00
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:
9.00e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Data not reliable, filtered out with message: AS_VQSR
AF:
0.00301
AC:
427
AN:
141714
Hom.:
0
Cov.:
27
AF XY:
0.00301
AC XY:
208
AN XY:
69214
show subpopulations
Gnomad4 AFR
AF:
0.0118
Gnomad4 AMR
AF:
0.00103
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000197
Gnomad4 SAS
AF:
0.000221
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000452
Gnomad4 OTH
AF:
0.00152
ExAC
AF:
0.000231
AC:
28

ClinVar

Significance: Uncertain significance
Submissions summary: Pathogenic:1Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Oocyte maturation defect 2 Pathogenic:1
Likely pathogenic, no assertion criteria providedcase-controlCenter for Reproductive Medicine, Shandong Provincial Hospital Affiliated to Shandong UniversityAug 31, 2020- -
not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingMendelicsMay 04, 2022- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.086
BayesDel_addAF
Benign
-0.071
T
BayesDel_noAF
Benign
-0.34
Cadd
Benign
14
Dann
Benign
0.73
Eigen
Benign
-0.55
Eigen_PC
Benign
-0.70
FATHMM_MKL
Benign
0.51
D
LIST_S2
Benign
0.68
T;T;T
MetaRNN
Benign
0.017
T;T;T
MetaSVM
Benign
-0.39
T
MutationTaster
Benign
1.0
D;N;N;N;N
PrimateAI
Uncertain
0.69
T
PROVEAN
Benign
-0.44
N;N;N
Sift
Uncertain
0.025
D;.;.
Sift4G
Benign
0.42
T;T;T
Polyphen
0.11
.;.;B
Vest4
0.34
MVP
0.76
ClinPred
0.55
D
Varity_R
0.21
gMVP
0.75

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: rs572455524; hg19: chr10-93287; COSMIC: COSV59115945; COSMIC: COSV59115945; API