chr1-85781230-G-T

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_152890.7(COL24A1):​c.4328C>A​(p.Thr1443Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000181 in 1,602,496 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000017 ( 0 hom. )

Consequence

COL24A1
NM_152890.7 missense

Scores

8
11

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.96
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
COL24A1NM_152890.7 linkuse as main transcriptc.4328C>A p.Thr1443Lys missense_variant 52/60 ENST00000370571.7 NP_690850.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
COL24A1ENST00000370571.7 linkuse as main transcriptc.4328C>A p.Thr1443Lys missense_variant 52/601 NM_152890.7 ENSP00000359603 P1Q17RW2-1
COL24A1ENST00000426639.5 linkuse as main transcriptc.*1778C>A 3_prime_UTR_variant, NMD_transcript_variant 53/595 ENSP00000409515

Frequencies

GnomAD3 genomes
AF:
0.0000264
AC:
4
AN:
151658
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000197
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:
0.000479
GnomAD3 exomes
AF:
0.0000903
AC:
22
AN:
243754
Hom.:
0
AF XY:
0.0000680
AC XY:
9
AN XY:
132404
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000631
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:
0.000170
GnomAD4 exome
AF:
0.0000172
AC:
25
AN:
1450838
Hom.:
0
Cov.:
30
AF XY:
0.0000139
AC XY:
10
AN XY:
721744
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.000550
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:
0.0000167
GnomAD4 genome
AF:
0.0000264
AC:
4
AN:
151658
Hom.:
0
Cov.:
32
AF XY:
0.0000405
AC XY:
3
AN XY:
74040
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.000197
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:
0.000479
Bravo
AF:
0.0000340
ExAC
AF:
0.0000331
AC:
4

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 submitterclinical testingAmbry GeneticsMar 29, 2022The c.4328C>A (p.T1443K) alteration is located in exon 52 (coding exon 52) of the COL24A1 gene. This alteration results from a C to A substitution at nucleotide position 4328, causing the threonine (T) at amino acid position 1443 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
0.13
BayesDel_addAF
Benign
-0.19
T
BayesDel_noAF
Benign
-0.15
CADD
Benign
22
DANN
Uncertain
0.99
DEOGEN2
Benign
0.20
T
Eigen
Benign
0.17
Eigen_PC
Uncertain
0.25
FATHMM_MKL
Uncertain
0.93
D
LIST_S2
Benign
0.77
T
M_CAP
Benign
0.076
D
MetaRNN
Uncertain
0.55
D
MetaSVM
Uncertain
0.042
D
MutationAssessor
Benign
0.21
N
MutationTaster
Benign
0.99
D;D
PrimateAI
Uncertain
0.49
T
PROVEAN
Uncertain
-2.4
N
REVEL
Uncertain
0.48
Sift
Benign
0.056
T
Sift4G
Benign
0.081
T
Polyphen
0.97
D
Vest4
0.64
MutPred
0.36
Gain of methylation at T1443 (P = 0.003);
MVP
0.40
MPC
0.073
ClinPred
0.18
T
GERP RS
4.2
Varity_R
0.23
gMVP
0.47

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: rs751190840; hg19: chr1-86246913; API