chr15-32720437-G-A

Position:

• chr15-32720437-G-A

Variant summary

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

The NM_013372.7(GREM1):​c.-2+2276G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0192 in 152,204 control chromosomes in the GnomAD database, including 109 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

• Frequency: Genomes: 𝑓 0.019 (109 hom., cov: 33)
• Consequence: GREM1 NM_013372.7 intron
• Clinical Significance: Benign criteria provided, single submitter B:1
• Conservation: PhyloP100: -0.261

Genes affected

GREM1 (HGNC:2001): (gremlin 1, DAN family BMP antagonist) This gene encodes a member of the BMP (bone morphogenic protein) antagonist family. Like BMPs, BMP antagonists contain cystine knots and typically form homo- and heterodimers. The CAN (cerberus and dan) subfamily of BMP antagonists, to which this gene belongs, is characterized by a C-terminal cystine knot with an eight-membered ring. The antagonistic effect of the secreted glycosylated protein encoded by this gene is likely due to its direct binding to BMP proteins. As an antagonist of BMP, this gene may play a role in regulating organogenesis, body patterning, and tissue differentiation. In mouse, this protein has been shown to relay the sonic hedgehog (SHH) signal from the polarizing region to the apical ectodermal ridge during limb bud outgrowth. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2010]

ACMG classification

Verdict is Benign. Variant got -14 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.69).
• BP6: Variant 15-32720437-G-A is Benign according to our data. Variant chr15-32720437-G-A is described in ClinVar as [Benign]. Clinvar id is 1261870.Status of the report is criteria_provided_single_submitter, 1 stars.
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.066 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
GREM1	NM_013372.7	c.-2+2276G>A		intron_variant		ENST00000651154.1
GREM1	NM_001191322.2	c.-2+2276G>A		intron_variant
GREM1	NM_001191323.2	c.-2+2276G>A		intron_variant
GREM1	NM_001368719.1	c.-2+1735G>A		intron_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
GREM1	ENST00000651154.1	c.-2+2276G>A		intron_variant			NM_013372.7	P1
GREM1	ENST00000560677.5	c.-2+2276G>A		intron_variant		4
GREM1	ENST00000560830.1	c.-2+2276G>A		intron_variant		2
GREM1	ENST00000652365.1	c.-2+1735G>A		intron_variant				P1

Frequencies

GnomAD3 genomes AF: 0.0191 AC: 2912 AN: 152086 Hom.: 108 Cov.: 33

Gnomad AFR AF: 0.0681

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00354

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.000414

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.000103

Gnomad OTH AF: 0.0134

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

GnomAD4 genome AF: 0.0192 AC: 2918 AN: 152204 Hom.: 109 Cov.: 33 AF XY: 0.0185 AC XY: 1380 AN XY: 74416

Gnomad4 AFR AF: 0.0681

Gnomad4 AMR AF: 0.00353

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.000207

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.000103

Gnomad4 OTH AF: 0.0133

Alfa AF: 0.0151 Hom.: 5

Bravo AF: 0.0224

Asia WGS AF: 0.00318 AC: 12 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

Jul 15, 2018

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.69
CADD	Benign	4.5
DANN	Benign	0.81

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: rs73376931; hg19: chr15-33012638;