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GeneBe

7-101544067-C-G

Variant summary

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

The NM_001278563.3(COL26A1):c.674C>G(p.Thr225Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000249 in 1,606,464 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 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

COL26A1
NM_001278563.3 missense

Scores

2
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.156
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=0.14257485).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
COL26A1NM_001278563.3 linkuse as main transcriptc.674C>G p.Thr225Arg missense_variant 6/13 ENST00000313669.12

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
COL26A1ENST00000313669.12 linkuse as main transcriptc.674C>G p.Thr225Arg missense_variant 6/131 NM_001278563.3 P4Q96A83-1
COL26A1ENST00000613501.1 linkuse as main transcriptc.668C>G p.Thr223Arg missense_variant 6/131 A1Q96A83-2

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152154
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
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:
0.00
GnomAD3 exomes
AF:
0.00000860
AC:
2
AN:
232658
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
126822
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000600
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:
0.00
GnomAD4 exome
AF:
0.00000138
AC:
2
AN:
1454310
Hom.:
0
Cov.:
31
AF XY:
0.00
AC XY:
0
AN XY:
722480
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000456
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:
0.00
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152154
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74324
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.000131
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:
0.00
Bravo
AF:
0.0000340

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 GeneticsJun 10, 2022The c.668C>G (p.T223R) alteration is located in exon 6 (coding exon 6) of the COL26A1 gene. This alteration results from a C to G substitution at nucleotide position 668, causing the threonine (T) at amino acid position 223 to be replaced by an arginine (R). 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
0.10
BayesDel_addAF
Benign
-0.0063
T
BayesDel_noAF
Uncertain
-0.070
Cadd
Benign
14
Dann
Benign
0.92
DEOGEN2
Benign
0.25
T;.
Eigen
Benign
-0.83
Eigen_PC
Benign
-0.72
FATHMM_MKL
Benign
0.27
N
LIST_S2
Uncertain
0.91
D;D
M_CAP
Benign
0.066
D
MetaRNN
Benign
0.14
T;T
MetaSVM
Benign
-0.49
T
MutationAssessor
Benign
-0.61
N;.
MutationTaster
Benign
1.0
N
PrimateAI
Benign
0.44
T
PROVEAN
Benign
0.29
N;.
REVEL
Benign
0.21
Sift4G
Benign
0.87
T;T
Polyphen
0.077
B;.
Vest4
0.41
MutPred
0.34
Loss of phosphorylation at T225 (P = 0.0012);.;
MVP
0.57
MPC
0.37
ClinPred
0.90
D
GERP RS
0.14
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.068
gMVP
0.15

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: rs1194756803; hg19: chr7-101187348; API