6-167340342-C-T

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_031949.5(TTLL2):​c.442C>T​(p.Pro148Ser) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,890 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

TTLL2
NM_031949.5 missense

Scores

4
6
8

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.99

Publications

0 publications found
Variant links:
Genes affected
TTLL2 (HGNC:21211): (tubulin tyrosine ligase like 2) Predicted to enable tubulin binding activity and tubulin-glutamic acid ligase activity. Predicted to be involved in microtubule cytoskeleton organization and protein polyglutamylation. Predicted to be active in cilium. [provided by Alliance of Genome Resources, Apr 2022]

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.935

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_031949.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
TTLL2
NM_031949.5
MANE Select
c.442C>Tp.Pro148Ser
missense
Exon 3 of 3NP_114155.4
TTLL2
NM_001410948.1
c.223C>Tp.Pro75Ser
missense
Exon 2 of 2NP_001397877.1A0A3B3IRU1

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
TTLL2
ENST00000239587.10
TSL:1 MANE Select
c.442C>Tp.Pro148Ser
missense
Exon 3 of 3ENSP00000239587.5Q9BWV7
TTLL2
ENST00000515138.1
TSL:1
n.442C>T
non_coding_transcript_exon
Exon 3 of 6ENSP00000424130.1Q9BWV7
TTLL2
ENST00000649884.1
c.223C>Tp.Pro75Ser
missense
Exon 2 of 2ENSP00000497040.1A0A3B3IRU1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461890
Hom.:
0
Cov.:
36
AF XY:
0.00000138
AC XY:
1
AN XY:
727248
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33480
American (AMR)
AF:
0.0000224
AC:
1
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86258
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53420
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1112008
Other (OTH)
AF:
0.00
AC:
0
AN:
60396
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.425
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.:
32
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.00000756

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, single submitter
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.44
BayesDel_addAF
Benign
-0.066
T
BayesDel_noAF
Benign
-0.33
CADD
Benign
22
DANN
Uncertain
1.0
DEOGEN2
Benign
0.099
T
Eigen
Uncertain
0.59
Eigen_PC
Uncertain
0.42
FATHMM_MKL
Uncertain
0.85
D
LIST_S2
Benign
0.57
T
M_CAP
Benign
0.0029
T
MetaRNN
Pathogenic
0.93
D
MetaSVM
Benign
-0.93
T
MutationAssessor
Pathogenic
3.6
H
PhyloP100
4.0
PrimateAI
Benign
0.25
T
PROVEAN
Pathogenic
-7.7
D
REVEL
Benign
0.21
Sift
Uncertain
0.0020
D
Sift4G
Pathogenic
0.0
D
Polyphen
1.0
D
Vest4
0.33
MutPred
0.79
Gain of catalytic residue at P148 (P = 0.0053)
MVP
0.076
MPC
0.56
ClinPred
1.0
D
GERP RS
3.4
Varity_R
0.88
gMVP
0.66
Mutation Taster
=42/58
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: rs1007289461; hg19: chr6-167753830; COSMIC: COSV53445211; COSMIC: COSV53445211; API