rs1297848220

Variant names:

• chr8-39645447-C-G
• rs1297848220
• NM_014237.3:c.1019C>G

Your query was ambiguous. Multiple possible variants found:

• chr8-39645447-C-G
• chr8-39645447-C-T

Variant summary

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

The NM_014237.3(ADAM18):​c.1019C>G​(p.Ala340Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000685 in 1,459,352 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A340V) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.9e-7 (0 hom.)
• Consequence: ADAM18 NM_014237.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.0530
• Publications: 0 publications found

Genes affected

ADAM18 (HGNC:196): (ADAM metallopeptidase domain 18) This gene encodes a member of the ADAM (a disintegrin and metalloprotease domain) family. Members of this family are membrane-anchored proteins structurally related to snake venom disintegrins, and have been implicated in a variety of biologic processes involving cell-cell and cell-matrix interactions, including fertilization, muscle development, and neurogenesis. The encoded preproprotein is proteolytically processed to generate the mature sperm surface protein. Alternative splicing results in multiple transcript variants, at least one of which encodes an isoform that is proteolytically processed. [provided by RefSeq, Feb 2016]

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=0.13107556).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_014237.3. 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
	ADAM18	NM_014237.3	MANE Select	c.1019C>G	p.Ala340Gly	missense	Exon 11 of 20	NP_055052.1	Q9Y3Q7-1
	ADAM18	NM_001320313.2		c.947C>G	p.Ala316Gly	missense	Exon 10 of 19	NP_001307242.1	Q9Y3Q7-2
	ADAM18	NR_135201.2		n.896C>G		non_coding_transcript_exon	Exon 10 of 18

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ADAM18	ENST00000265707.10	TSL:1 MANE Select	c.1019C>G	p.Ala340Gly	missense	Exon 11 of 20	ENSP00000265707.5	Q9Y3Q7-1
	ADAM18	ENST00000379866.5	TSL:1	c.947C>G	p.Ala316Gly	missense	Exon 10 of 19	ENSP00000369195.1	Q9Y3Q7-2
	ADAM18	ENST00000520087.5	TSL:1	n.*493C>G		non_coding_transcript_exon	Exon 10 of 18	ENSP00000428083.1	E5RK96

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD2 exomes AF: 0.00000400 AC: 1 AN: 249956 AF XY: 0.00

Gnomad AFR exome AF: 0.00

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: 6.85e-7 AC: 1 AN: 1459352 Hom.: 0 Cov.: 30 AF XY: 0.00 AC XY: 0 AN XY: 725900

African (AFR) AF: 0.00 AC: 0 AN: 33408

American (AMR) AF: 0.00 AC: 0 AN: 44504

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26084

East Asian (EAS) AF: 0.00 AC: 0 AN: 39566

South Asian (SAS) AF: 0.0000117 AC: 1 AN: 85756

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 52966

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5748

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1111026

Other (OTH) AF: 0.00 AC: 0 AN: 60294

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.097
BayesDel_addAF	Benign	-0.32	T
BayesDel_noAF	Benign	-0.60
CADD	Benign	17
DANN	Benign	0.97
DEOGEN2	Benign	0.0097	T
Eigen	Benign	-0.43
Eigen_PC	Benign	-0.38
FATHMM_MKL	Benign	0.30	N
M_CAP	Benign	0.0027	T
MetaRNN	Benign	0.13	T
MetaSVM	Benign	-1.1	T
MutationAssessor	Uncertain	2.1	M
PhyloP100		-0.053
PrimateAI	Benign	0.36	T
PROVEAN	Benign	-2.2	N
REVEL	Benign	0.069
Sift	Benign	0.34	T
Sift4G	Benign	0.23	T
Polyphen		0.049	B
Vest4		0.31
MutPred		0.57		Loss of stability (P = 0.055)
MVP		0.29
MPC		0.11
ClinPred		0.23	T
GERP RS		3.4
Varity_R		0.21
gMVP		0.36
Mutation Taster		=91/9	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.19		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: rs1297848220; hg19: chr8-39502966;