2-108798564-C-A

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_144978.3(CCDC138):​c.713C>A​(p.Thr238Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000268 in 1,457,606 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 31)
Exomes 𝑓: 0.000027 ( 0 hom. )

Consequence

CCDC138
NM_144978.3 missense

Scores

7
12

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.72
Variant links:
Genes affected
CCDC138 (HGNC:26531): (coiled-coil domain containing 138)

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.29575095).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CCDC138NM_144978.3 linkuse as main transcriptc.713C>A p.Thr238Lys missense_variant 6/15 ENST00000295124.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CCDC138ENST00000295124.9 linkuse as main transcriptc.713C>A p.Thr238Lys missense_variant 6/152 NM_144978.3 P1Q96M89-1
CCDC138ENST00000412964.6 linkuse as main transcriptc.713C>A p.Thr238Lys missense_variant 6/141 Q96M89-2
CCDC138ENST00000456512.1 linkuse as main transcriptc.407C>A p.Thr136Lys missense_variant 3/95
CCDC138ENST00000409529.6 linkuse as main transcriptc.*518C>A 3_prime_UTR_variant, NMD_transcript_variant 6/142

Frequencies

GnomAD3 genomes
Cov.:
31
GnomAD3 exomes
AF:
0.0000161
AC:
4
AN:
248290
Hom.:
0
AF XY:
0.0000149
AC XY:
2
AN XY:
134464
show subpopulations
Gnomad AFR exome
AF:
0.00
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:
0.0000355
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000268
AC:
39
AN:
1457606
Hom.:
0
Cov.:
30
AF XY:
0.0000276
AC XY:
20
AN XY:
725176
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000342
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
Cov.:
31
Alfa
AF:
0.0000487
Hom.:
0
Bravo
AF:
0.00000756
ExAC
AF:
0.0000165
AC:
2
EpiCase
AF:
0.0000546
EpiControl
AF:
0.00

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 GeneticsApr 04, 2023The c.713C>A (p.T238K) alteration is located in exon 6 (coding exon 6) of the CCDC138 gene. This alteration results from a C to A substitution at nucleotide position 713, causing the threonine (T) at amino acid position 238 to be replaced by a lysine (K). 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
0.23
BayesDel_addAF
Benign
-0.012
T
BayesDel_noAF
Benign
-0.15
CADD
Benign
21
DANN
Uncertain
0.99
DEOGEN2
Benign
0.028
.;T
Eigen
Benign
-0.24
Eigen_PC
Benign
-0.14
FATHMM_MKL
Uncertain
0.86
D
LIST_S2
Benign
0.63
T;T
M_CAP
Uncertain
0.13
D
MetaRNN
Benign
0.30
T;T
MetaSVM
Uncertain
-0.13
T
MutationAssessor
Uncertain
2.6
M;M
MutationTaster
Benign
0.90
N;N
PrimateAI
Benign
0.47
T
PROVEAN
Benign
-2.2
N;N
REVEL
Uncertain
0.43
Sift
Benign
0.38
T;T
Sift4G
Uncertain
0.013
D;T
Polyphen
0.015
B;D
Vest4
0.50
MutPred
0.36
Gain of solvent accessibility (P = 0.012);Gain of solvent accessibility (P = 0.012);
MVP
0.91
MPC
0.21
ClinPred
0.69
D
GERP RS
3.9
Varity_R
0.11
gMVP
0.36

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.11
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: rs765916341; hg19: chr2-109415020; API