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16-724193-G-T

Variant summary

Our verdict is Benign. Variant got -9 ACMG points: 0P and 9B. BP4_StrongBP6BS2

The NM_001378030.1(CCDC78):​c.966C>A​(p.Asn322Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00392 in 1,597,364 control chromosomes in the GnomAD database, including 43 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 Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.0025 ( 1 hom., cov: 33)
Exomes 𝑓: 0.0041 ( 42 hom. )

Consequence

CCDC78
NM_001378030.1 missense

Scores

1
17

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:2

Conservation

PhyloP100: 0.909
Variant links:
Genes affected
CCDC78 (HGNC:14153): (coiled-coil domain containing 78) Involved in de novo centriole assembly involved in multi-ciliated epithelial cell differentiation and skeletal muscle contraction. Located in several cellular components, including centriole; deuterosome; and sarcolemma. Implicated in centronuclear myopathy 4. [provided by Alliance of Genome Resources, Apr 2022]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -9 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.003260076).
BP6
Variant 16-724193-G-T is Benign according to our data. Variant chr16-724193-G-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 128634.We mark this variant Likely_benign, oryginal submissions are: {Benign=1, Uncertain_significance=1, Likely_benign=1}. Variant chr16-724193-G-T is described in Lovd as [Likely_benign].
BS2
High AC in GnomAd4 at 385 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CCDC78NM_001378030.1 linkuse as main transcriptc.966C>A p.Asn322Lys missense_variant 10/14 ENST00000345165.10

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CCDC78ENST00000345165.10 linkuse as main transcriptc.966C>A p.Asn322Lys missense_variant 10/145 NM_001378030.1 A2

Frequencies

GnomAD3 genomes
AF:
0.00253
AC:
385
AN:
152208
Hom.:
1
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000893
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00105
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000192
Gnomad SAS
AF:
0.0157
Gnomad FIN
AF:
0.000282
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00362
Gnomad OTH
AF:
0.00287
GnomAD3 exomes
AF:
0.00376
AC:
885
AN:
235528
Hom.:
17
AF XY:
0.00456
AC XY:
581
AN XY:
127412
show subpopulations
Gnomad AFR exome
AF:
0.000878
Gnomad AMR exome
AF:
0.000521
Gnomad ASJ exome
AF:
0.000233
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0177
Gnomad FIN exome
AF:
0.000481
Gnomad NFE exome
AF:
0.00321
Gnomad OTH exome
AF:
0.00228
GnomAD4 exome
AF:
0.00407
AC:
5880
AN:
1445038
Hom.:
42
Cov.:
35
AF XY:
0.00440
AC XY:
3156
AN XY:
717322
show subpopulations
Gnomad4 AFR exome
AF:
0.000574
Gnomad4 AMR exome
AF:
0.000628
Gnomad4 ASJ exome
AF:
0.0000800
Gnomad4 EAS exome
AF:
0.0000253
Gnomad4 SAS exome
AF:
0.0156
Gnomad4 FIN exome
AF:
0.000562
Gnomad4 NFE exome
AF:
0.00391
Gnomad4 OTH exome
AF:
0.00272
GnomAD4 genome
AF:
0.00253
AC:
385
AN:
152326
Hom.:
1
Cov.:
33
AF XY:
0.00260
AC XY:
194
AN XY:
74484
show subpopulations
Gnomad4 AFR
AF:
0.000890
Gnomad4 AMR
AF:
0.00105
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000193
Gnomad4 SAS
AF:
0.0157
Gnomad4 FIN
AF:
0.000282
Gnomad4 NFE
AF:
0.00362
Gnomad4 OTH
AF:
0.00284
Alfa
AF:
0.00360
Hom.:
2
Bravo
AF:
0.00206
TwinsUK
AF:
0.00351
AC:
13
ALSPAC
AF:
0.00415
AC:
16
ESP6500AA
AF:
0.000910
AC:
4
ESP6500EA
AF:
0.00279
AC:
24
ExAC
AF:
0.00371
AC:
450
Asia WGS
AF:
0.00664
AC:
23
AN:
3478

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:2
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Uncertain:1Benign:1
Uncertain significance, criteria provided, single submitterclinical testingGenetic Services Laboratory, University of ChicagoJan 24, 2014- -
Likely benign, criteria provided, single submitterclinical testingGeneDxJun 18, 2021- -
Congenital myopathy with internal nuclei and atypical cores Benign:1
Benign, criteria provided, single submitterclinical testingInvitaeJan 29, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.18
BayesDel_addAF
Benign
-0.66
T
BayesDel_noAF
Benign
-0.71
CADD
Benign
7.3
DANN
Benign
0.55
DEOGEN2
Benign
0.015
T
Eigen
Benign
-0.88
Eigen_PC
Benign
-0.99
FATHMM_MKL
Benign
0.21
N
LIST_S2
Benign
0.37
T
MetaRNN
Benign
0.0033
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.41
N
MutationTaster
Benign
1.0
N;N;N
PrimateAI
Benign
0.34
T
PROVEAN
Benign
-0.63
N
REVEL
Benign
0.021
Sift
Benign
0.47
T
Sift4G
Uncertain
0.037
D
Polyphen
0.027
B
Vest4
0.060
MutPred
0.35
Gain of methylation at N322 (P = 0.009);
MVP
0.11
MPC
0.21
ClinPred
0.00010
T
GERP RS
1.8
Varity_R
0.047
gMVP
0.11

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.10
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: rs148595483; hg19: chr16-774193; API