rs183013671

Variant summary

Our verdict is Likely benign. The variant received -1 ACMG points: 0P and 1B. BP4

The NM_014444.5(TUBGCP4):​c.998G>A​(p.Arg333His) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000122 in 1,497,094 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 Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000080 ( 0 hom., cov: 24)
Exomes 𝑓: 0.00013 ( 0 hom. )

Consequence

TUBGCP4
NM_014444.5 missense

Scores

7
6
5

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:4

Conservation

PhyloP100: 9.65

Publications

4 publications found
Variant links:
Genes affected
TUBGCP4 (HGNC:16691): (tubulin gamma complex component 4) This gene encodes a component of the gamma-tubulin ring complex, which is required for microtubule nucleation. In mammalian cells, the protein localizes to centrosomes in association with gamma-tubulin. Crystal structure analysis revealed a structure composed of five helical bundles arranged around conserved hydrophobic cores. An exposed surface area located in the C-terminal domain is essential and sufficient for direct binding to gamma-tubulin. Mutations in this gene that alter microtubule organization are associated with microcephaly and chorioretinopathy. Alternative splicing results in multiple transcript variants. [provided by RefSeq, May 2015]
TUBGCP4 Gene-Disease associations (from GenCC):
  • microcephaly and chorioretinopathy 3
    Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae), G2P
  • microcephaly and chorioretinopathy 1
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -1 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.33129925).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_014444.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
TUBGCP4
NM_014444.5
MANE Select
c.998G>Ap.Arg333His
missense
Exon 9 of 18NP_055259.2
TUBGCP4
NM_001286414.3
c.998G>Ap.Arg333His
missense
Exon 9 of 18NP_001273343.1

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
TUBGCP4
ENST00000564079.6
TSL:1 MANE Select
c.998G>Ap.Arg333His
missense
Exon 9 of 18ENSP00000456648.2
TUBGCP4
ENST00000260383.11
TSL:1
c.998G>Ap.Arg333His
missense
Exon 9 of 18ENSP00000260383.7
TUBGCP4
ENST00000561691.5
TSL:1
n.752G>A
non_coding_transcript_exon
Exon 7 of 17ENSP00000455474.1

Frequencies

GnomAD3 genomes
AF:
0.0000803
AC:
10
AN:
124544
Hom.:
0
Cov.:
24
show subpopulations
Gnomad AFR
AF:
0.0000316
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.000917
Gnomad EAS
AF:
0.00117
Gnomad SAS
AF:
0.000270
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.000229
AC:
55
AN:
240396
AF XY:
0.000199
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000252
Gnomad ASJ exome
AF:
0.00204
Gnomad EAS exome
AF:
0.000925
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000634
Gnomad OTH exome
AF:
0.000172
GnomAD4 exome
AF:
0.000125
AC:
172
AN:
1372464
Hom.:
0
Cov.:
24
AF XY:
0.000117
AC XY:
80
AN XY:
683486
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
30916
American (AMR)
AF:
0.000295
AC:
12
AN:
40666
Ashkenazi Jewish (ASJ)
AF:
0.00170
AC:
40
AN:
23538
East Asian (EAS)
AF:
0.00156
AC:
55
AN:
35260
South Asian (SAS)
AF:
0.000170
AC:
14
AN:
82478
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
47644
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
3792
European-Non Finnish (NFE)
AF:
0.0000408
AC:
43
AN:
1053026
Other (OTH)
AF:
0.000145
AC:
8
AN:
55144
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.511
Heterozygous variant carriers
0
7
14
22
29
36
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
4
8
12
16
20
<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:
0.0000802
AC:
10
AN:
124630
Hom.:
0
Cov.:
24
AF XY:
0.000120
AC XY:
7
AN XY:
58538
show subpopulations
African (AFR)
AF:
0.0000315
AC:
1
AN:
31716
American (AMR)
AF:
0.00
AC:
0
AN:
10918
Ashkenazi Jewish (ASJ)
AF:
0.000917
AC:
3
AN:
3272
East Asian (EAS)
AF:
0.00117
AC:
5
AN:
4280
South Asian (SAS)
AF:
0.000270
AC:
1
AN:
3710
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
5242
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
172
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
62844
Other (OTH)
AF:
0.00
AC:
0
AN:
1600
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.520
Heterozygous variant carriers
0
1
2
3
4
5
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:
0.000162
Hom.:
0
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000242
AC:
2
ExAC
AF:
0.000182
AC:
22

ClinVar

ClinVar submissions as Germline

Significance:Uncertain significance
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
2
-
not provided (2)
-
1
-
Microcephaly and chorioretinopathy 3 (1)
-
1
-
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.78
BayesDel_addAF
Benign
-0.16
T
BayesDel_noAF
Uncertain
-0.080
CADD
Pathogenic
33
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.15
T
Eigen
Pathogenic
0.75
Eigen_PC
Pathogenic
0.71
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Pathogenic
0.97
D
M_CAP
Benign
0.035
D
MetaRNN
Benign
0.33
T
MetaSVM
Benign
-1.2
T
MutationAssessor
Uncertain
2.3
M
PhyloP100
9.7
PrimateAI
Uncertain
0.76
T
PROVEAN
Uncertain
-3.9
D
REVEL
Uncertain
0.41
Sift
Pathogenic
0.0
D
Sift4G
Uncertain
0.011
D
Polyphen
1.0
D
Vest4
0.90
MVP
0.63
MPC
1.5
ClinPred
0.24
T
GERP RS
5.7
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.78
gMVP
0.77
Mutation Taster
=45/55
disease causing

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs183013671; hg19: chr15-43678512; COSMIC: COSV99539056; COSMIC: COSV99539056; API