22-50226795-G-A

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 2P and 8B. PM2BP4_ModerateBP6BP7BS1

The NM_020461.4(TUBGCP6):​c.1539C>T​(p.Cys513=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000108 in 1,591,546 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00049 ( 1 hom., cov: 32)
Exomes 𝑓: 0.000068 ( 0 hom. )

Consequence

TUBGCP6
NM_020461.4 synonymous

Scores

2

Clinical Significance

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

Conservation

PhyloP100: 2.87
Variant links:
Genes affected
TUBGCP6 (HGNC:18127): (tubulin gamma complex component 6) The protein encoded by this gene is part of a large multisubunit complex required for microtubule nucleation at the centrosome. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.38).
BP6
Variant 22-50226795-G-A is Benign according to our data. Variant chr22-50226795-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 437158.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=1, Uncertain_significance=1}.
BP7
Synonymous conserved (PhyloP=2.87 with no splicing effect.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.000486 (74/152320) while in subpopulation AFR AF= 0.00176 (73/41564). AF 95% confidence interval is 0.00143. There are 1 homozygotes in gnomad4. There are 34 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TUBGCP6NM_020461.4 linkuse as main transcriptc.1539C>T p.Cys513= synonymous_variant 7/25 ENST00000248846.10
TUBGCP6XR_001755343.3 linkuse as main transcriptn.2103C>T non_coding_transcript_exon_variant 7/20
TUBGCP6XR_007067982.1 linkuse as main transcriptn.2103C>T non_coding_transcript_exon_variant 7/19
TUBGCP6XR_938347.3 linkuse as main transcriptn.2103C>T non_coding_transcript_exon_variant 7/23

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TUBGCP6ENST00000248846.10 linkuse as main transcriptc.1539C>T p.Cys513= synonymous_variant 7/251 NM_020461.4 P1Q96RT7-1
TUBGCP6ENST00000439308.6 linkuse as main transcriptc.1539C>T p.Cys513= synonymous_variant 7/251
TUBGCP6ENST00000498611.5 linkuse as main transcriptn.2072C>T non_coding_transcript_exon_variant 7/231
TUBGCP6ENST00000434349.1 linkuse as main transcriptc.771C>T p.Cys257= synonymous_variant 6/65

Frequencies

GnomAD3 genomes
AF:
0.000486
AC:
74
AN:
152202
Hom.:
1
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00176
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:
0.000478
GnomAD3 exomes
AF:
0.000142
AC:
30
AN:
212010
Hom.:
1
AF XY:
0.0000969
AC XY:
11
AN XY:
113576
show subpopulations
Gnomad AFR exome
AF:
0.00209
Gnomad AMR exome
AF:
0.0000345
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000382
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000681
AC:
98
AN:
1439226
Hom.:
0
Cov.:
33
AF XY:
0.0000561
AC XY:
40
AN XY:
713566
show subpopulations
Gnomad4 AFR exome
AF:
0.00225
Gnomad4 AMR exome
AF:
0.0000250
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000242
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
9.08e-7
Gnomad4 OTH exome
AF:
0.000318
GnomAD4 genome
AF:
0.000486
AC:
74
AN:
152320
Hom.:
1
Cov.:
32
AF XY:
0.000457
AC XY:
34
AN XY:
74478
show subpopulations
Gnomad4 AFR
AF:
0.00176
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.000473
Alfa
AF:
0.000356
Hom.:
0
Bravo
AF:
0.000484
Asia WGS
AF:
0.00115
AC:
4
AN:
3478

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:2
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingGenetic Services Laboratory, University of ChicagoJun 14, 2016- -
TUBGCP6-related disorder Benign:1
Likely benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesOct 28, 2019This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -
not provided Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpDec 25, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.38
CADD
Benign
9.3
DANN
Benign
0.67

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: rs149982006; hg19: chr22-50665224; API