3-14658932-A-G

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP6

The NM_016474.5(CCDC174):​c.307+3A>G variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000313 in 1,505,466 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 2/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Likely benign (no stars).

Frequency

Genomes: 𝑓 0.0017 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00016 ( 0 hom. )

Consequence

CCDC174
NM_016474.5 splice_region, intron

Scores

2
Splicing: ADA: 0.9871
2

Clinical Significance

Likely benign no assertion criteria provided B:1

Conservation

PhyloP100: 0.770
Variant links:
Genes affected
CCDC174 (HGNC:28033): (coiled-coil domain containing 174) The protein encoded by this gene is found in the nucleus, where it interacts with eukaryotic translation initiation factor 4A, isoform 3. The encoded protein appears to be a part of the exon junction complex, which is involved in RNA processing, translation, and nonsense-mediated mRNA decay. A mutation in this gene has been associated with infantile hypotonia with psychomotor retardation. [provided by RefSeq, Mar 2016]

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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;
BP6
Variant 3-14658932-A-G is Benign according to our data. Variant chr3-14658932-A-G is described in ClinVar as [Likely_benign]. Clinvar id is 3052027.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CCDC174NM_016474.5 linkuse as main transcriptc.307+3A>G splice_region_variant, intron_variant ENST00000383794.7 NP_057558.3 Q6PII3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CCDC174ENST00000383794.7 linkuse as main transcriptc.307+3A>G splice_region_variant, intron_variant 1 NM_016474.5 ENSP00000373304.3 Q6PII3
CCDC174ENST00000465759.1 linkuse as main transcriptn.371+3A>G splice_region_variant, intron_variant 1
CCDC174ENST00000303688.8 linkuse as main transcriptc.307+3A>G splice_region_variant, intron_variant 5 ENSP00000302344.7 A0A0B4J1R8
CCDC174ENST00000463438.5 linkuse as main transcriptn.380+3A>G splice_region_variant, intron_variant 2

Frequencies

GnomAD3 genomes
AF:
0.00171
AC:
260
AN:
152236
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00608
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000327
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:
0.00143
GnomAD3 exomes
AF:
0.000389
AC:
92
AN:
236366
Hom.:
0
AF XY:
0.000295
AC XY:
38
AN XY:
128770
show subpopulations
Gnomad AFR exome
AF:
0.00610
Gnomad AMR exome
AF:
0.0000673
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:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000156
AC:
211
AN:
1353112
Hom.:
0
Cov.:
28
AF XY:
0.000122
AC XY:
82
AN XY:
670582
show subpopulations
Gnomad4 AFR exome
AF:
0.00590
Gnomad4 AMR exome
AF:
0.000106
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000120
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
9.69e-7
Gnomad4 OTH exome
AF:
0.000398
GnomAD4 genome
AF:
0.00171
AC:
260
AN:
152354
Hom.:
0
Cov.:
32
AF XY:
0.00138
AC XY:
103
AN XY:
74512
show subpopulations
Gnomad4 AFR
AF:
0.00606
Gnomad4 AMR
AF:
0.000327
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:
0.00142
Alfa
AF:
0.00106
Hom.:
0
Bravo
AF:
0.00193
Asia WGS
AF:
0.000577
AC:
2
AN:
3478

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

CCDC174-related disorder Benign:1
Likely benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesApr 06, 2022This 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). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.37
CADD
Benign
21
DANN
Benign
0.86

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Pathogenic
0.99
dbscSNV1_RF
Pathogenic
0.78
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: rs146669257; hg19: chr3-14700439; API