1-1179235-G-A

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001130045.2(TTLL10):​c.20G>A​(p.Arg7Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000031 in 1,548,428 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000046 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000029 ( 0 hom. )

Consequence

TTLL10
NM_001130045.2 missense

Scores

1
18

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -3.09
Variant links:
Genes affected
TTLL10 (HGNC:26693): (tubulin tyrosine ligase like 10) Predicted to enable protein-glycine ligase activity, elongating. Predicted to be involved in protein polyglycylation. Predicted to be located in axoneme and microtubule cytoskeleton. [provided by Alliance of Genome Resources, Apr 2022]
TTLL10-AS1 (HGNC:41159): (TTLL10 antisense RNA 1)

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.059185773).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
TTLL10NM_001130045.2 linkc.20G>A p.Arg7Gln missense_variant 4/16 ENST00000379289.6 NP_001123517.1 Q6ZVT0-1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
TTLL10ENST00000379289.6 linkc.20G>A p.Arg7Gln missense_variant 4/162 NM_001130045.2 ENSP00000368591.1 Q6ZVT0-1
TTLL10ENST00000379290.6 linkc.20G>A p.Arg7Gln missense_variant 4/161 ENSP00000368592.1 Q6ZVT0-1
TTLL10ENST00000673999.1 linkc.20G>A p.Arg7Gln missense_variant 4/6 ENSP00000500959.1 A0A669K9N4
TTLL10-AS1ENST00000379317.1 linkn.191+130C>T intron_variant 2

Frequencies

GnomAD3 genomes
AF:
0.0000460
AC:
7
AN:
152200
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000241
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:
0.0000882
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000332
AC:
5
AN:
150798
Hom.:
0
AF XY:
0.0000125
AC XY:
1
AN XY:
80064
show subpopulations
Gnomad AFR exome
AF:
0.000254
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000522
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000294
AC:
41
AN:
1396228
Hom.:
0
Cov.:
31
AF XY:
0.0000247
AC XY:
17
AN XY:
688448
show subpopulations
Gnomad4 AFR exome
AF:
0.0000951
Gnomad4 AMR exome
AF:
0.0000282
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.0000205
Gnomad4 NFE exome
AF:
0.0000325
Gnomad4 OTH exome
AF:
0.0000173
GnomAD4 genome
AF:
0.0000460
AC:
7
AN:
152200
Hom.:
0
Cov.:
33
AF XY:
0.0000538
AC XY:
4
AN XY:
74360
show subpopulations
Gnomad4 AFR
AF:
0.0000241
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:
0.0000882
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000330
Hom.:
0
Bravo
AF:
0.0000567
ExAC
AF:
0.0000409
AC:
1

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsMay 11, 2022The c.20G>A (p.R7Q) alteration is located in exon 4 (coding exon 1) of the TTLL10 gene. This alteration results from a G to A substitution at nucleotide position 20, causing the arginine (R) at amino acid position 7 to be replaced by a glutamine (Q). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.10
BayesDel_addAF
Benign
-0.56
T
BayesDel_noAF
Benign
-0.75
CADD
Benign
1.3
DANN
Benign
0.97
DEOGEN2
Benign
0.0077
T;T
Eigen
Benign
-1.0
Eigen_PC
Benign
-1.2
FATHMM_MKL
Benign
0.010
N
LIST_S2
Benign
0.44
.;T
M_CAP
Benign
0.0077
T
MetaRNN
Benign
0.059
T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
1.5
L;L
PrimateAI
Benign
0.23
T
PROVEAN
Benign
-0.70
N;N
REVEL
Benign
0.032
Sift
Benign
0.033
D;D
Sift4G
Uncertain
0.035
D;D
Polyphen
0.86
P;P
Vest4
0.076
MutPred
0.19
Loss of MoRF binding (P = 0.0034);Loss of MoRF binding (P = 0.0034);
MVP
0.11
MPC
0.029
ClinPred
0.011
T
GERP RS
-2.0
Varity_R
0.029
gMVP
0.049

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs752671231; hg19: chr1-1114615; API