chr11-74703403-T-C

Variant names:

• chr11-74703403-T-C
• rs374603983
• NM_001278473.3:c.848A>G

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_001278473.3(CHRDL2):​c.848A>G​(p.Glu283Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000744 in 1,613,530 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: 𝑓 0.000033 (0 hom., cov: 32)
  • Exomes 𝑓: 0.0000048 (0 hom.)
• Consequence: CHRDL2 NM_001278473.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.397
• Publications: 0 publications found

Genes affected

CHRDL2 (HGNC:24168): (chordin like 2) This gene encodes a member of the chordin family of proteins. Chordin family members are secreted proteins that share a cysteine-rich pro-collagen repeat domain and associate with members of the transforming growth factor beta superfamily. In vitro assays demonstrate a direct interaction between the encoded protein and human activin A. This gene is expressed in many tissues including osteoblasts, where it is differentially expressed during differentiation. In addition, its expression is upregulated in human osteoarthritic joint cartilage, suggesting a role in adult cartilage regeneration. [provided by RefSeq, Jan 2015]

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.20925161).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001278473.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CHRDL2	NM_001278473.3	MANE Select	c.848A>G	p.Glu283Gly	missense	Exon 8 of 11	NP_001265402.1	Q6WN34-1
	CHRDL2	NM_015424.6		c.848A>G	p.Glu283Gly	missense	Exon 8 of 12	NP_056239.3
	CHRDL2	NM_001304390.2		c.788A>G	p.Glu263Gly	missense	Exon 7 of 11	NP_001291319.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CHRDL2	ENST00000376332.8	TSL:1 MANE Select	c.848A>G	p.Glu283Gly	missense	Exon 8 of 11	ENSP00000365510.3	Q6WN34-1
	CHRDL2	ENST00000263671.9	TSL:1	c.848A>G	p.Glu283Gly	missense	Exon 8 of 12	ENSP00000263671.5	Q6WN34-2
	CHRDL2	ENST00000528789.1	TSL:1	c.752-436A>G		intron	N/A	ENSP00000431380.1	Q6WN33

Frequencies

GnomAD3 genomes AF: 0.0000329 AC: 5 AN: 152186 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.0000724

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

GnomAD2 exomes AF: 0.0000120 AC: 3 AN: 250542 AF XY: 0.0000147

Gnomad AFR exome AF: 0.000186

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS 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: 0.00000479 AC: 7 AN: 1461344 Hom.: 0 Cov.: 31 AF XY: 0.00000550 AC XY: 4 AN XY: 727034

African (AFR) AF: 0.000209 AC: 7 AN: 33474

American (AMR) AF: 0.00 AC: 0 AN: 44710

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26120

East Asian (EAS) AF: 0.00 AC: 0 AN: 39700

South Asian (SAS) AF: 0.00 AC: 0 AN: 86240

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53096

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5718

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1111910

Other (OTH) AF: 0.00 AC: 0 AN: 60376

GnomAD4 genome AF: 0.0000329 AC: 5 AN: 152186 Hom.: 0 Cov.: 32 AF XY: 0.0000269 AC XY: 2 AN XY: 74360

African (AFR) AF: 0.0000724 AC: 3 AN: 41462

American (AMR) AF: 0.000131 AC: 2 AN: 15292

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3472

East Asian (EAS) AF: 0.00 AC: 0 AN: 5192

South Asian (SAS) AF: 0.00 AC: 0 AN: 4828

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10626

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 67996

Other (OTH) AF: 0.00 AC: 0 AN: 2090

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.0000793

ESP6500AA AF: 0.000227 AC: 1

ESP6500EA AF: 0.00 AC: 0

ExAC AF: 0.00000824 AC: 1

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.12
BayesDel_addAF	Benign	-0.25	T
BayesDel_noAF	Benign	-0.32
CADD	Benign	22
DANN	Uncertain	0.99
DEOGEN2	Benign	0.022	T
Eigen	Benign	-0.27
Eigen_PC	Benign	-0.23
FATHMM_MKL	Benign	0.22	N
LIST_S2	Benign	0.60	T
M_CAP	Benign	0.024	T
MetaRNN	Benign	0.21	T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	1.0	L
PhyloP100		0.40
PrimateAI	Benign	0.26	T
PROVEAN	Benign	-2.1	N
REVEL	Benign	0.15
Sift	Benign	0.24	T
Sift4G	Benign	0.35	T
Polyphen		0.022	B
Vest4		0.31
MVP		0.82
MPC		0.31
ClinPred		0.033	T
GERP RS		3.2
Varity_R		0.12
gMVP		0.49
Mutation Taster		=98/2	polymorphism

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

Other links and lift over

dbSNP: rs374603983; hg19: chr11-74414448;