3-14655599-T-A

Position:

chr3-14655599-T-A

Variant summary

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

The NM_016474.5(CCDC174):c.218T>A(p.Ile73Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000522 in 1,609,972 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 0.000020 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000056 ( 0 hom. )

Consequence

CCDC174
NM_016474.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.474

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]

CCDC174 links:

CCDC174 (HGNC:):

CCDC174 links:

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=0.0395402).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CCDC174	NM_016474.5 linkuse as main transcript	c.218T>A	p.Ile73Asn	missense_variant	3/11	ENST00000383794.7	NP_057558.3	Q6PII3
CCDC174	NM_001410719.1 linkuse as main transcript	c.218T>A	p.Ile73Asn	missense_variant	3/9		NP_001397648.1
CCDC174	XM_017006555.3 linkuse as main transcript	c.218T>A	p.Ile73Asn	missense_variant	3/8		XP_016862044.1
CCDC174	NR_135523.2 linkuse as main transcript	n.293T>A		non_coding_transcript_exon_variant	3/10

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
CCDC174	ENST00000383794.7 linkuse as main transcript	c.218T>A	p.Ile73Asn	missense_variant	3/11	1	NM_016474.5	ENSP00000373304.3	Q6PII3
CCDC174	ENST00000465759.1 linkuse as main transcript	n.282T>A		non_coding_transcript_exon_variant	3/7	1
CCDC174	ENST00000303688.8 linkuse as main transcript	c.218T>A	p.Ile73Asn	missense_variant	3/9	5		ENSP00000302344.7	A0A0B4J1R8
CCDC174	ENST00000463438.5 linkuse as main transcript	n.291T>A		non_coding_transcript_exon_variant	3/5	2

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152072

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

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:

0.0000441

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000324

AC:

AN:

246884

Hom.:

AF XY:

0.0000298

AC XY:

AN XY:

134094

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:

0.0000712

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000556

AC:

AN:

1457900

Hom.:

Cov.:

AF XY:

0.0000551

AC XY:

AN XY:

725414

show subpopulations

Gnomad4 AFR exome

AF:

0.0000301

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000694

Gnomad4 OTH exome

AF:

0.0000332

GnomAD4 genome

AF:

0.0000197

AC:

AN:

152072

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74298

show subpopulations

Gnomad4 AFR

AF:

0.00

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:

0.0000441

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000282

Hom.:

Bravo

AF:

0.0000302

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000367

AC:

ExAC

AF:

0.0000166

AC:

EpiCase

AF:

0.0000551

EpiControl

AF:

0.000120

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 submitter

clinical testing

Ambry Genetics

Jan 26, 2023

The c.218T>A (p.I73N) alteration is located in exon 3 (coding exon 3) of the CCDC174 gene. This alteration results from a T to A substitution at nucleotide position 218, causing the isoleucine (I) at amino acid position 73 to be replaced by an asparagine (N). 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

0.11

BayesDel_addAF

Benign

-0.34

BayesDel_noAF

Benign

-0.55

CADD

Benign

DANN

Benign

0.87

DEOGEN2

Benign

0.074

T;T

Eigen

Benign

-0.84

Eigen_PC

Benign

-0.75

FATHMM_MKL

Benign

0.16

LIST_S2

Uncertain

0.90

D;D

M_CAP

Benign

0.010

MetaRNN

Benign

0.040

T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.9

L;.

MutationTaster

Benign

1.0

N;N

PrimateAI

Benign

0.37

PROVEAN

Benign

-0.99

N;N

REVEL

Benign

0.034

Sift

Benign

0.29

T;T

Sift4G

Benign

0.52

T;T

Polyphen

0.11

B;.

Vest4

0.42

MVP

0.18

MPC

0.23

ClinPred

0.049

GERP RS

1.4

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.066

gMVP

0.16

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over