chr7-101547161-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001278563.3(COL26A1):​c.862G>A​(p.Asp288Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00026 in 1,593,840 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00024 ( 0 hom., cov: 33)
Exomes 𝑓: 0.00026 ( 1 hom. )

Consequence

COL26A1
NM_001278563.3 missense

Scores

4
14

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.53
Variant links:
Genes affected
COL26A1 (HGNC:18038): (collagen type XXVI alpha 1 chain) This gene encodes a protein containing an emilin domain and two collagen stretches. This gene may be associated with aspirin-intolerant asthma. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Aug 2013]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.1517599).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
COL26A1NM_001278563.3 linkuse as main transcriptc.862G>A p.Asp288Asn missense_variant 8/13 ENST00000313669.12

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
COL26A1ENST00000313669.12 linkuse as main transcriptc.862G>A p.Asp288Asn missense_variant 8/131 NM_001278563.3 P4Q96A83-1
COL26A1ENST00000613501.1 linkuse as main transcriptc.856G>A p.Asp286Asn missense_variant 8/131 A1Q96A83-2

Frequencies

GnomAD3 genomes
AF:
0.000237
AC:
36
AN:
152182
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000338
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:
0.000323
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000102
AC:
22
AN:
216068
Hom.:
0
AF XY:
0.0000765
AC XY:
9
AN XY:
117670
show subpopulations
Gnomad AFR exome
AF:
0.000252
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:
0.000196
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000263
AC:
379
AN:
1441658
Hom.:
1
Cov.:
30
AF XY:
0.000259
AC XY:
185
AN XY:
715236
show subpopulations
Gnomad4 AFR exome
AF:
0.000152
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:
0.000321
Gnomad4 OTH exome
AF:
0.000335
GnomAD4 genome
AF:
0.000237
AC:
36
AN:
152182
Hom.:
0
Cov.:
33
AF XY:
0.000215
AC XY:
16
AN XY:
74342
show subpopulations
Gnomad4 AFR
AF:
0.000338
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:
0.000323
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000293
Hom.:
0
Bravo
AF:
0.000223
TwinsUK
AF:
0.000270
AC:
1
ALSPAC
AF:
0.000259
AC:
1
ESP6500AA
AF:
0.000261
AC:
1
ESP6500EA
AF:
0.000489
AC:
4
ExAC
AF:
0.0000920
AC:
11

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 GeneticsJan 05, 2022The c.856G>A (p.D286N) alteration is located in exon 8 (coding exon 8) of the COL26A1 gene. This alteration results from a G to A substitution at nucleotide position 856, causing the aspartic acid (D) at amino acid position 286 to be replaced by an asparagine (N). 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
0.090
BayesDel_addAF
Benign
-0.20
T
BayesDel_noAF
Benign
-0.18
CADD
Uncertain
24
DANN
Uncertain
1.0
DEOGEN2
Benign
0.064
T;.
Eigen
Uncertain
0.19
Eigen_PC
Benign
0.094
FATHMM_MKL
Benign
0.69
D
LIST_S2
Benign
0.72
T;T
M_CAP
Benign
0.027
D
MetaRNN
Benign
0.15
T;T
MetaSVM
Uncertain
-0.048
T
MutationAssessor
Benign
1.2
L;.
MutationTaster
Benign
1.0
N
PrimateAI
Benign
0.42
T
PROVEAN
Uncertain
-2.4
N;.
REVEL
Benign
0.28
Sift4G
Benign
0.090
T;T
Polyphen
0.99
D;.
Vest4
0.39
MVP
0.87
MPC
0.19
ClinPred
0.25
T
GERP RS
3.1
Varity_R
0.13
gMVP
0.15

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs201322022; hg19: chr7-101190442; API