rs372338719

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2BP4

The NM_006659.4(TUBGCP2):​c.2603G>T​(p.Arg868Leu) variant causes a missense change. The variant allele was found at a frequency of 0.000000687 in 1,456,500 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R868H) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 6.9e-7 ( 0 hom. )

Consequence

TUBGCP2
NM_006659.4 missense

Scores

2
8
9

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 4.79

Publications

0 publications found
Variant links:
Genes affected
TUBGCP2 (HGNC:18599): (tubulin gamma complex component 2) Predicted to enable gamma-tubulin binding activity. Predicted to contribute to microtubule minus-end binding activity. Involved in brain development and neuron migration. Located in centrosome and nucleoplasm. [provided by Alliance of Genome Resources, Apr 2022]
TUBGCP2 Gene-Disease associations (from GenCC):
  • Norman-Roberts syndrome
    Inheritance: AR Classification: STRONG Submitted by: PanelApp Australia
  • pachygyria, microcephaly, developmental delay, and dysmorphic facies, with or without seizures
    Inheritance: AR Classification: STRONG, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.29406747).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
TUBGCP2NM_006659.4 linkc.2603G>T p.Arg868Leu missense_variant Exon 18 of 18 ENST00000252936.8 NP_006650.1 Q9BSJ2-1Q53EQ3
TUBGCP2NM_001256617.2 linkc.2687G>T p.Arg896Leu missense_variant Exon 19 of 19 NP_001243546.1 Q9BSJ2-4
TUBGCP2NM_001256618.2 linkc.2213G>T p.Arg738Leu missense_variant Exon 17 of 17 NP_001243547.1 Q9BSJ2-3
TUBGCP2NR_046330.2 linkn.3323G>T non_coding_transcript_exon_variant Exon 18 of 18

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
TUBGCP2ENST00000252936.8 linkc.2603G>T p.Arg868Leu missense_variant Exon 18 of 18 2 NM_006659.4 ENSP00000252936.3 Q9BSJ2-1

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD4 exome
AF:
6.87e-7
AC:
1
AN:
1456500
Hom.:
0
Cov.:
31
AF XY:
0.00
AC XY:
0
AN XY:
724370
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33316
American (AMR)
AF:
0.00
AC:
0
AN:
43976
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26038
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39460
South Asian (SAS)
AF:
0.00
AC:
0
AN:
85542
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
52046
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5748
European-Non Finnish (NFE)
AF:
9.01e-7
AC:
1
AN:
1110178
Other (OTH)
AF:
0.00
AC:
0
AN:
60196
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
0
1
1
2
2
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
Cov.:
33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.19
BayesDel_addAF
Pathogenic
0.22
D
BayesDel_noAF
Uncertain
0.070
CADD
Benign
23
DANN
Uncertain
1.0
DEOGEN2
Benign
0.15
T;.;.;T;T
Eigen
Uncertain
0.37
Eigen_PC
Uncertain
0.43
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.93
.;D;D;D;D
M_CAP
Benign
0.035
D
MetaRNN
Benign
0.29
T;T;T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Uncertain
2.6
M;.;.;M;.
PhyloP100
4.8
PrimateAI
Uncertain
0.59
T
PROVEAN
Uncertain
-2.6
D;D;D;D;N
REVEL
Benign
0.21
Sift
Benign
0.11
T;T;T;T;T
Sift4G
Benign
0.18
T;T;T;T;D
Polyphen
0.80
P;.;.;P;.
Vest4
0.47
MutPred
0.48
Loss of disorder (P = 0.0452);.;.;Loss of disorder (P = 0.0452);.;
MVP
0.52
MPC
1.1
ClinPred
0.95
D
GERP RS
5.1
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.32
gMVP
0.66
Mutation Taster
=12/88
disease causing

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: rs372338719; hg19: chr10-135093376; API