chr5-151223934-G-T

Position:

chr5-151223934-G-T

Variant summary

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

The NM_015621.3(CCDC69):c.37C>A(p.Pro13Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000104 in 1,581,068 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 0.00011 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00010 ( 0 hom. )

Consequence

CCDC69
NM_015621.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.355

Variant links:

Genes affected

CCDC69 (HGNC:24487): (coiled-coil domain containing 69) Predicted to enable microtubule binding activity. Involved in spindle midzone assembly. Located in spindle midzone. [provided by Alliance of Genome Resources, Apr 2022]

CCDC69 links:

LOC105378230 (HGNC:):

LOC105378230 links:

GM2A (HGNC:4367): (ganglioside GM2 activator) This gene encodes a small glycolipid transport protein which acts as a substrate specific co-factor for the lysosomal enzyme beta-hexosaminidase A. Beta-hexosaminidase A, together with GM2 ganglioside activator, catalyzes the degradation of the ganglioside GM2, and other molecules containing terminal N-acetyl hexosamines. Mutations in this gene result in GM2-gangliosidosis type AB or the AB variant of Tay-Sachs disease. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Nov 2009]

GM2A 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=0.054071307).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
CCDC69	NM_015621.3 linkuse as main transcript	c.37C>A	p.Pro13Thr	missense_variant	1/9	ENST00000355417.7
LOC105378230	NR_160730.1 linkuse as main transcript	n.1105G>T		non_coding_transcript_exon_variant	4/4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris
CCDC69	ENST00000355417.7 linkuse as main transcript	c.37C>A	p.Pro13Thr	missense_variant	1/9	1	NM_015621.3	P1
CCDC69	ENST00000521308.5 linkuse as main transcript	n.160C>A		non_coding_transcript_exon_variant	1/8	1
GM2A	ENST00000523466.5 linkuse as main transcript	c.126+11045G>T		intron_variant		3
CCDC69	ENST00000519740.1 linkuse as main transcript	n.159C>A		non_coding_transcript_exon_variant	1/2	3

Frequencies

GnomAD3 genomes

AF:

0.000105

AC:

AN:

152222

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000724

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:

0.000191

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000376

AC:

AN:

212754

Hom.:

AF XY:

0.0000427

AC XY:

AN XY:

117090

show subpopulations

Gnomad AFR exome

AF:

0.0000854

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:

0.0000724

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000104

AC:

148

AN:

1428846

Hom.:

Cov.:

AF XY:

0.0000985

AC XY:

AN XY:

711014

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:

0.000134

Gnomad4 OTH exome

AF:

0.0000170

GnomAD4 genome

AF:

0.000105

AC:

AN:

152222

Hom.:

Cov.:

AF XY:

0.000121

AC XY:

AN XY:

74368

show subpopulations

Gnomad4 AFR

AF:

0.0000724

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:

0.000191

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000113

Hom.:

Bravo

AF:

0.0000793

ExAC

AF:

0.0000741

AC:

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

Apr 20, 2024

The c.37C>A (p.P13T) alteration is located in exon 1 (coding exon 1) of the CCDC69 gene. This alteration results from a C to A substitution at nucleotide position 37, causing the proline (P) at amino acid position 13 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

0.079

BayesDel_addAF

Benign

-0.38

BayesDel_noAF

Benign

-0.59

CADD

Benign

DANN

Benign

0.93

DEOGEN2

Benign

0.0012

Eigen

Benign

-0.69

Eigen_PC

Benign

-0.59

FATHMM_MKL

Benign

0.51

LIST_S2

Benign

0.38

M_CAP

Benign

0.0073

MetaRNN

Benign

0.054

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.81

MutationTaster

Benign

1.0

PrimateAI

Benign

0.29

PROVEAN

Benign

-0.37

REVEL

Benign

0.038

Sift

Benign

0.22

Sift4G

Benign

0.45

Polyphen

0.16

Vest4

0.20

MVP

0.081

MPC

0.038

ClinPred

0.026

GERP RS

0.67

Varity_R

0.086

gMVP

0.18

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