chr3-114010942-C-T

Variant summary

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

The NM_020817.2(CCDC191):​c.1243G>A​(p.Ala415Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000942 in 1,614,006 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00068 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00097 ( 1 hom. )

Consequence

CCDC191
NM_020817.2 missense

Scores

18

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.516
Variant links:
Genes affected
CCDC191 (HGNC:29272): (coiled-coil domain containing 191)
QTRT2 (HGNC:25771): (queuine tRNA-ribosyltransferase accessory subunit 2) This gene encodes a subunit of tRNA-guanine transglycosylase. tRNA-guanine transglycosylase is a heterodimeric enzyme complex that plays a critical role in tRNA modification by synthesizing the 7-deazaguanosine queuosine, which is found in tRNAs that code for asparagine, aspartic acid, histidine, and tyrosine. The encoded protein may play a role in the queuosine 5'-monophosphate salvage pathway. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene. [provided by RefSeq, Feb 2012]

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=0.006737858).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CCDC191NM_020817.2 linkuse as main transcriptc.1243G>A p.Ala415Thr missense_variant 9/17 ENST00000295878.8
LOC105374048XR_924347.4 linkuse as main transcriptn.221-1830C>T intron_variant, non_coding_transcript_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CCDC191ENST00000295878.8 linkuse as main transcriptc.1243G>A p.Ala415Thr missense_variant 9/171 NM_020817.2 P1Q8NCU4-1
ENST00000647576.1 linkuse as main transcriptn.804-1830C>T intron_variant, non_coding_transcript_variant

Frequencies

GnomAD3 genomes
AF:
0.000677
AC:
103
AN:
152216
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000193
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00111
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:
0.00110
Gnomad OTH
AF:
0.00143
GnomAD3 exomes
AF:
0.000746
AC:
187
AN:
250790
Hom.:
0
AF XY:
0.000790
AC XY:
107
AN XY:
135500
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00113
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000653
Gnomad FIN exome
AF:
0.0000463
Gnomad NFE exome
AF:
0.00122
Gnomad OTH exome
AF:
0.00114
GnomAD4 exome
AF:
0.000969
AC:
1417
AN:
1461672
Hom.:
1
Cov.:
31
AF XY:
0.000957
AC XY:
696
AN XY:
727156
show subpopulations
Gnomad4 AFR exome
AF:
0.000358
Gnomad4 AMR exome
AF:
0.00114
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.0000232
Gnomad4 FIN exome
AF:
0.000131
Gnomad4 NFE exome
AF:
0.00115
Gnomad4 OTH exome
AF:
0.00111
GnomAD4 genome
AF:
0.000676
AC:
103
AN:
152334
Hom.:
0
Cov.:
32
AF XY:
0.000443
AC XY:
33
AN XY:
74490
show subpopulations
Gnomad4 AFR
AF:
0.000192
Gnomad4 AMR
AF:
0.00111
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00110
Gnomad4 OTH
AF:
0.00142
Alfa
AF:
0.000931
Hom.:
0
Bravo
AF:
0.000729
TwinsUK
AF:
0.000809
AC:
3
ALSPAC
AF:
0.000778
AC:
3
ESP6500AA
AF:
0.000227
AC:
1
ESP6500EA
AF:
0.000930
AC:
8
ExAC
AF:
0.000692
AC:
84
EpiCase
AF:
0.00196
EpiControl
AF:
0.00136

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 GeneticsJan 03, 2024The c.1243G>A (p.A415T) alteration is located in exon 9 (coding exon 9) of the CCDC191 gene. This alteration results from a G to A substitution at nucleotide position 1243, causing the alanine (A) at amino acid position 415 to be replaced by a threonine (T). 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
0.074
BayesDel_addAF
Benign
-0.53
T
BayesDel_noAF
Benign
-0.58
CADD
Benign
3.8
DANN
Benign
0.88
DEOGEN2
Benign
0.0091
T;T
Eigen
Benign
-1.3
Eigen_PC
Benign
-1.3
FATHMM_MKL
Benign
0.047
N
LIST_S2
Benign
0.50
T;T
M_CAP
Benign
0.0097
T
MetaRNN
Benign
0.0067
T;T
MetaSVM
Benign
-1.0
T
MutationTaster
Benign
1.0
N;N
PrimateAI
Benign
0.27
T
PROVEAN
Benign
-0.60
N;N
REVEL
Benign
0.017
Sift
Benign
0.33
T;T
Sift4G
Benign
0.22
T;.
Polyphen
0.061
B;B
Vest4
0.091
MVP
0.055
MPC
0.21
ClinPred
0.019
T
GERP RS
-2.0
Varity_R
0.023
gMVP
0.062

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: rs143944825; hg19: chr3-113729789; API