Genetic Variant COL24A1:p.Glu1574Lys (chr1-85737458-C-T) – ACMG Classification: Uncertain_significance (1 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_152890.7(COL24A1):c.4720G>A(p.Glu1574Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000124 in 1,612,986 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

COL24A1
NM_152890.7 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.40

Variant links:

Genes affected

COL24A1 (HGNC:20821): (collagen type XXIV alpha 1 chain) This gene is a member of the collagen gene family and is thought to regulate type I collagen fibrillogenesis during fetal development. [provided by RefSeq, Mar 2017]

COL24A1 links:

Genome browser will be placed here

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;

BP4

Computational evidence support a benign effect (MetaRNN=0.36205617).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
COL24A1	NM_152890.7 link	c.4720G>A	p.Glu1574Lys	missense_variant	Exon 58 of 60	ENST00000370571.7	NP_690850.2	Q17RW2-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
COL24A1	ENST00000370571.7 link	c.4720G>A	p.Glu1574Lys	missense_variant	Exon 58 of 60	1	NM_152890.7	ENSP00000359603.2	Q17RW2-1
COL24A1	ENST00000426639.5 link	n.*2107G>A		non_coding_transcript_exon_variant	Exon 57 of 59	5		ENSP00000409515.1	F8WDM8
COL24A1	ENST00000473734.1 link	n.130G>A		non_coding_transcript_exon_variant	Exon 2 of 4	4		ENSP00000432605.1	H0YCZ7
COL24A1	ENST00000426639.5 link	n.*2107G>A		3_prime_UTR_variant	Exon 57 of 59	5		ENSP00000409515.1	F8WDM8

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152126

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

6.85e-7

AC:

AN:

1460860

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

726748

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:

0.00

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152126

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74294

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:

0.0000147

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.00000378

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jul 06, 2021

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.4720G>A (p.E1574K) alteration is located in exon 58 (coding exon 58) of the COL24A1 gene. This alteration results from a G to A substitution at nucleotide position 4720, causing the glutamic acid (E) at amino acid position 1574 to be replaced by a lysine (K). 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

0.15

BayesDel_addAF

Benign

0.0069

BayesDel_noAF

Benign

-0.23

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.022

Eigen

Benign

0.083

Eigen_PC

Benign

0.18

FATHMM_MKL

Uncertain

0.94

LIST_S2

Uncertain

0.96

M_CAP

Benign

0.024

MetaRNN

Benign

0.36

MetaSVM

Benign

-0.81

MutationAssessor

Benign

1.1

PrimateAI

Uncertain

0.77

PROVEAN

Uncertain

-2.9

REVEL

Uncertain

0.32

Sift

Uncertain

0.0060

Sift4G

Benign

0.13

Polyphen

0.93

Vest4

0.43

MutPred

0.54

Gain of methylation at E1574 (P = 0.0036);

MVP

0.49

MPC

0.19

ClinPred

0.93

GERP RS

4.7

Varity_R

0.42

gMVP

0.79

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