Genetic Variant ACAN:c.1429+105C>A (chr15-88845987-C-A) – ACMG Classification: Likely_benign (-4 pts)

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong

The NM_001369268.1(ACAN):c.1429+105C>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000143 in 1,256,764 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000014 ( 0 hom. )

Consequence

ACAN
NM_001369268.1 intron

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.468

Publications

0 publications found

Variant links:

Genes affected

ACAN (HGNC:319): (aggrecan) This gene is a member of the aggrecan/versican proteoglycan family. The encoded protein is an integral part of the extracellular matrix in cartilagenous tissue and it withstands compression in cartilage. Mutations in this gene may be involved in skeletal dysplasia and spinal degeneration. Multiple alternatively spliced transcript variants that encode different protein isoforms have been observed in this gene. [provided by RefSeq, Jul 2008]

ACAN Gene-Disease associations (from GenCC):

ACAN-related short stature spectrum
Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
osteochondritis dissecans
Inheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, Illumina
short stature and advanced bone age, with or without early-onset osteoarthritis and/or osteochondritis dissecans
Inheritance: AD Classification: DEFINITIVE Submitted by: Ambry Genetics
spondyloepiphyseal dysplasia, Kimberley type
Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE, LIMITED Submitted by: Orphanet, Ambry Genetics, G2P, Labcorp Genetics (formerly Invitae)
spondyloepimetaphyseal dysplasia, aggrecan type
Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE, LIMITED Submitted by: Orphanet, Ambry Genetics, Labcorp Genetics (formerly Invitae), G2P
short stature-advanced bone age-early-onset osteoarthritis syndrome
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

ACAN links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.89).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001369268.1. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	Effect	Exon Rank	Protein	UniProt
ACAN	NM_001369268.1	MANE Select	c.1429+105C>A	intron	N/A	NP_001356197.1	P16112-4
ACAN	NM_001411097.1		c.1429+105C>A	intron	N/A	NP_001398026.1	A0A5K1VW97
ACAN	NM_013227.4		c.1429+105C>A	intron	N/A	NP_037359.3	P16112-1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	Effect	Exon Rank	Protein	UniProt
ACAN	ENST00000560601.4	TSL:3 MANE Select	c.1429+105C>A	intron	N/A	ENSP00000453581.2	P16112-4
ACAN	ENST00000558207.5	TSL:1	c.1429+105C>A	intron	N/A	ENSP00000453003.1	Q6PID9
ACAN	ENST00000439576.7	TSL:5	c.1429+105C>A	intron	N/A	ENSP00000387356.2	P16112-1

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152208

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

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:

0.0000441

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.0000136

AC:

AN:

1104556

Hom.:

AF XY:

0.00000750

AC XY:

AN XY:

533520

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

24858

American (AMR)

AF:

0.00

AC:

AN:

16890

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

17146

East Asian (EAS)

AF:

0.00

AC:

AN:

32796

South Asian (SAS)

AF:

0.00

AC:

AN:

42458

European-Finnish (FIN)

AF:

0.00

AC:

AN:

38958

Middle Eastern (MID)

AF:

0.00

AC:

AN:

3220

European-Non Finnish (NFE)

AF:

0.0000170

AC:

AN:

881248

Other (OTH)

AF:

0.00

AC:

AN:

46982

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.515

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.0000197

AC:

AN:

152208

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74362

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41442

American (AMR)

AF:

0.00

AC:

AN:

15276

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5198

South Asian (SAS)

AF:

0.00

AC:

AN:

4830

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10624

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000441

AC:

AN:

68044

Other (OTH)

AF:

0.00

AC:

AN:

2094

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.492

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.00

Hom.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.89

CADD

Benign

2.2

(source)

DANN

Benign

0.52

PhyloP100

-0.47

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over