rs4746015

Positions:

• chr10-69953140-G-A

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 0P and 14B. BP4_Strong BP6_Moderate BA1

The NM_001368882.1(COL13A1):​c.2145+172G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.398 in 152,116 control chromosomes in the GnomAD database, including 12,196 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

• Frequency: Genomes: 𝑓 0.40 (12196 hom., cov: 33)
• Consequence: COL13A1 NM_001368882.1 intron
• Clinical Significance: Benign criteria provided, single submitter B:1
• Conservation: PhyloP100: -1.31

Genes affected

COL13A1 (HGNC:2190): (collagen type XIII alpha 1 chain) This gene encodes the alpha chain of one of the nonfibrillar collagens. The function of this gene product is not known, however, it has been detected at low levels in all connective tissue-producing cells so it may serve a general function in connective tissues. Unlike most of the collagens, which are secreted into the extracellular matrix, collagen XIII contains a transmembrane domain and the protein has been localized to the plasma membrane. The transcripts for this gene undergo complex and extensive splicing involving at least eight exons. Like other collagens, collagen XIII is a trimer; it is not known whether this trimer is composed of one or more than one alpha chain isomer. A number of alternatively spliced transcript variants have been described, but the full length nature of some of them has not been determined. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Benign. Variant got -14 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.84).
• BP6: Variant 10-69953140-G-A is Benign according to our data. Variant chr10-69953140-G-A is described in ClinVar as [Benign]. Clinvar id is 1231086.Status of the report is criteria_provided_single_submitter, 1 stars.
• BA1: GnomAd4 highest subpopulation (SAS) allele frequency at 95% confidence interval = 0.452 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
COL13A1	NM_001368882.1	c.2145+172G>A		intron_variant		ENST00000645393.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
COL13A1	ENST00000645393.2	c.2145+172G>A		intron_variant			NM_001368882.1	P1

Frequencies

GnomAD3 genomes AF: 0.398 AC: 60542 AN: 151998 Hom.: 12157 Cov.: 33

Gnomad AFR AF: 0.412

Gnomad AMI AF: 0.336

Gnomad AMR AF: 0.410

Gnomad ASJ AF: 0.367

Gnomad EAS AF: 0.452

Gnomad SAS AF: 0.468

Gnomad FIN AF: 0.285

Gnomad MID AF: 0.446

Gnomad NFE AF: 0.397

Gnomad OTH AF: 0.422

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.398 AC: 60618 AN: 152116 Hom.: 12196 Cov.: 33 AF XY: 0.397 AC XY: 29513 AN XY: 74354

Gnomad4 AFR AF: 0.413

Gnomad4 AMR AF: 0.410

Gnomad4 ASJ AF: 0.367

Gnomad4 EAS AF: 0.450

Gnomad4 SAS AF: 0.468

Gnomad4 FIN AF: 0.285

Gnomad4 NFE AF: 0.397

Gnomad4 OTH AF: 0.422

Alfa AF: 0.406 Hom.: 17438

Bravo AF: 0.409

Asia WGS AF: 0.446 AC: 1549 AN: 3478

ClinVar

Significance: Benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Benign:1

Benign, criteria provided, single submitter

clinical testing

GeneDx

May 10, 2021

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Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.84
CADD	Benign	0.12
DANN	Benign	0.66

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

Other links and lift over

dbSNP: rs4746015; hg19: chr10-71712896; COSMIC: COSV62572667; COSMIC: COSV62572667;