NM_005993.5:c.29G>A

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4_StrongBP6

The NM_005993.5(TBCD):​c.29G>A​(p.Gly10Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000249 in 1,525,062 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G10C) has been classified as Benign.

Frequency

Genomes: 𝑓 0.000053 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000022 ( 0 hom. )

Consequence

TBCD
NM_005993.5 missense

Scores

2
1
15

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:1

Conservation

PhyloP100: 0.667

Publications

0 publications found
Variant links:
Genes affected
TBCD (HGNC:11581): (tubulin folding cofactor D) Cofactor D is one of four proteins (cofactors A, D, E, and C) involved in the pathway leading to correctly folded beta-tubulin from folding intermediates. Cofactors A and D are believed to play a role in capturing and stabilizing beta-tubulin intermediates in a quasi-native confirmation. Cofactor E binds to the cofactor D/beta-tubulin complex; interaction with cofactor C then causes the release of beta-tubulin polypeptides that are committed to the native state. [provided by RefSeq, Jul 2008]
TBCD Gene-Disease associations (from GenCC):
  • early-onset progressive diffuse brain atrophy-microcephaly-muscle weakness-optic atrophy syndrome
    Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: ClinGen, PanelApp Australia, Labcorp Genetics (formerly Invitae), G2P, Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -5 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.034015805).
BP6
Variant 17-82752222-G-A is Benign according to our data. Variant chr17-82752222-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 1028460.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_005993.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
TBCD
NM_005993.5
MANE Select
c.29G>Ap.Gly10Asp
missense
Exon 1 of 39NP_005984.3
TBCD
NM_001411101.1
c.29G>Ap.Gly10Asp
missense
Exon 1 of 38NP_001398030.1A0A804HLI2
TBCD
NM_001411102.1
c.29G>Ap.Gly10Asp
missense
Exon 1 of 38NP_001398031.1A0A804HJ32

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
TBCD
ENST00000355528.9
TSL:1 MANE Select
c.29G>Ap.Gly10Asp
missense
Exon 1 of 39ENSP00000347719.4Q9BTW9-1
TBCD
ENST00000684760.1
c.29G>Ap.Gly10Asp
missense
Exon 1 of 40ENSP00000507696.1A0A804HJY5
TBCD
ENST00000684349.1
c.29G>Ap.Gly10Asp
missense
Exon 1 of 39ENSP00000508067.1A0A804HKT8

Frequencies

GnomAD3 genomes
AF:
0.0000394
AC:
6
AN:
152160
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000145
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
GnomAD2 exomes
AF:
0.00
AC:
0
AN:
115868
AF XY:
0.00
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:
0.0000219
AC:
30
AN:
1372788
Hom.:
0
Cov.:
31
AF XY:
0.0000266
AC XY:
18
AN XY:
677380
show subpopulations
African (AFR)
AF:
0.000389
AC:
11
AN:
28288
American (AMR)
AF:
0.0000589
AC:
2
AN:
33964
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
24392
East Asian (EAS)
AF:
0.00
AC:
0
AN:
32468
South Asian (SAS)
AF:
0.0000129
AC:
1
AN:
77540
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
43548
Middle Eastern (MID)
AF:
0.000452
AC:
2
AN:
4420
European-Non Finnish (NFE)
AF:
9.34e-7
AC:
1
AN:
1071178
Other (OTH)
AF:
0.000228
AC:
13
AN:
56990
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.513
Heterozygous variant carriers
0
2
4
6
8
10
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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
AF:
0.0000525
AC:
8
AN:
152274
Hom.:
0
Cov.:
33
AF XY:
0.0000806
AC XY:
6
AN XY:
74448
show subpopulations
African (AFR)
AF:
0.000192
AC:
8
AN:
41572
American (AMR)
AF:
0.00
AC:
0
AN:
15308
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5172
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4828
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10600
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
292
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68002
Other (OTH)
AF:
0.00
AC:
0
AN:
2116
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.542
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.0000435
Hom.:
0
Bravo
AF:
0.0000113
ExAC
AF:
0.0000156
AC:
1
Asia WGS
AF:
0.00173
AC:
6
AN:
3474

ClinVar

ClinVar submissions
Significance:Conflicting classifications of pathogenicity
Revision:criteria provided, conflicting classifications
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
Early-onset progressive diffuse brain atrophy-microcephaly-muscle weakness-optic atrophy syndrome (1)
-
1
-
Inborn genetic diseases (1)
-
-
1
not provided (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.096
BayesDel_addAF
Benign
-0.29
T
BayesDel_noAF
Benign
-0.65
CADD
Benign
14
DANN
Uncertain
0.99
DEOGEN2
Benign
0.014
T
Eigen
Benign
-1.1
Eigen_PC
Benign
-1.2
FATHMM_MKL
Benign
0.021
N
LIST_S2
Benign
0.35
T
M_CAP
Pathogenic
0.80
D
MetaRNN
Benign
0.034
T
MetaSVM
Benign
-0.96
T
MutationAssessor
Benign
1.8
L
PhyloP100
0.67
PrimateAI
Pathogenic
0.79
T
PROVEAN
Benign
0.25
N
REVEL
Benign
0.013
Sift
Benign
0.27
T
Sift4G
Benign
0.94
T
Polyphen
0.0030
B
Vest4
0.092
MutPred
0.13
Gain of solvent accessibility (P = 0.0638)
MVP
0.16
MPC
1.1
ClinPred
0.058
T
GERP RS
-1.2
PromoterAI
0.042
Neutral
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.17
gMVP
0.16
Mutation Taster
=98/2
polymorphism

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

Other links and lift over

dbSNP: rs533171147; hg19: chr17-80710098; API