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GeneBe

7-7360398-C-T

Variant summary

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

The NM_001037763.3(COL28A1):c.3197G>A(p.Gly1066Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00047 in 1,573,844 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00032 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00049 ( 1 hom. )

Consequence

COL28A1
NM_001037763.3 missense

Scores

17

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.0810
Variant links:
Genes affected
COL28A1 (HGNC:22442): (collagen type XXVIII alpha 1 chain) COL28A1 belongs to a class of collagens containing von Willebrand factor (VWF; MIM 613160) type A (VWFA) domains (Veit et al., 2006 [PubMed 16330543]).[supplied by OMIM, Nov 2010]

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=0.060524166).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
COL28A1NM_001037763.3 linkuse as main transcriptc.3197G>A p.Gly1066Glu missense_variant 34/35 ENST00000399429.8
LOC107986764XR_002956539.2 linkuse as main transcriptn.442-16163C>T intron_variant, non_coding_transcript_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
COL28A1ENST00000399429.8 linkuse as main transcriptc.3197G>A p.Gly1066Glu missense_variant 34/351 NM_001037763.3 P1Q2UY09-1
COL28A1ENST00000453441.1 linkuse as main transcriptc.62G>A p.Gly21Glu missense_variant 1/32
COL28A1ENST00000430711.5 linkuse as main transcriptc.248G>A p.Gly83Glu missense_variant, NMD_transcript_variant 2/45

Frequencies

GnomAD3 genomes
AF:
0.000322
AC:
49
AN:
152046
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000966
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:
0.000662
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000193
AC:
41
AN:
212512
Hom.:
0
AF XY:
0.000207
AC XY:
24
AN XY:
116146
show subpopulations
Gnomad AFR exome
AF:
0.000141
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:
0.000368
Gnomad OTH exome
AF:
0.000203
GnomAD4 exome
AF:
0.000487
AC:
692
AN:
1421680
Hom.:
1
Cov.:
31
AF XY:
0.000452
AC XY:
319
AN XY:
706000
show subpopulations
Gnomad4 AFR exome
AF:
0.000162
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000126
Gnomad4 FIN exome
AF:
0.0000188
Gnomad4 NFE exome
AF:
0.000568
Gnomad4 OTH exome
AF:
0.00104
GnomAD4 genome
AF:
0.000315
AC:
48
AN:
152164
Hom.:
0
Cov.:
32
AF XY:
0.000188
AC XY:
14
AN XY:
74372
show subpopulations
Gnomad4 AFR
AF:
0.0000964
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:
0.000647
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000519
Hom.:
0
Bravo
AF:
0.000257
TwinsUK
AF:
0.000539
AC:
2
ALSPAC
AF:
0.000259
AC:
1
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000722
AC:
6
ExAC
AF:
0.000165
AC:
20

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 GeneticsNov 21, 2022The c.3197G>A (p.G1066E) alteration is located in exon 34 (coding exon 33) of the COL28A1 gene. This alteration results from a G to A substitution at nucleotide position 3197, causing the glycine (G) at amino acid position 1066 to be replaced by a glutamic acid (E). 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
0.064
BayesDel_addAF
Benign
-0.44
T
BayesDel_noAF
Benign
-0.51
Cadd
Benign
0.42
Dann
Benign
0.34
Eigen
Benign
-1.1
Eigen_PC
Benign
-1.2
FATHMM_MKL
Benign
0.011
N
LIST_S2
Benign
0.42
T;T
M_CAP
Benign
0.011
T
MetaRNN
Benign
0.061
T;T
MetaSVM
Benign
-0.64
T
MutationTaster
Benign
1.0
N
PrimateAI
Benign
0.26
T
PROVEAN
Benign
-1.6
N;N
REVEL
Benign
0.11
Sift
Benign
0.32
T;T
Sift4G
Benign
0.79
T;T
Polyphen
0.029
.;B
Vest4
0.14
MVP
0.13
MPC
0.033
ClinPred
0.021
T
GERP RS
-0.12
Varity_R
0.080
gMVP
0.28

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.

Other links and lift over

dbSNP: rs200146803; hg19: chr7-7400029; API