12-65169618-G-T

Variant names:

• chr12-65169618-G-T
• rs756414909
• NM_014319.5:c.22G>T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_014319.5(LEMD3):​c.22G>T​(p.Ala8Ser) variant causes a missense change. The variant allele was found at a frequency of 0.0000131 in 152,176 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 0.000013 (0 hom., cov: 32)
• Consequence: LEMD3 NM_014319.5 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 4.51

Genes affected

LEMD3 (HGNC:28887): (LEM domain containing 3) This locus encodes a LEM domain-containing protein. The encoded protein functions to antagonize transforming growth factor-beta signaling at the inner nuclear membrane. Two transcript variants encoding different isoforms have been found for this gene. Mutations in this gene have been associated with osteopoikilosis, Buschke-Ollendorff syndrome and melorheostosis.[provided by RefSeq, Nov 2009]

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.13804519).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
LEMD3	NM_014319.5	c.22G>T	p.Ala8Ser	missense_variant	Exon 1 of 13	ENST00000308330.3	NP_055134.2
LEMD3	NM_001167614.2	c.22G>T	p.Ala8Ser	missense_variant	Exon 1 of 13		NP_001161086.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
LEMD3	ENST00000308330.3	c.22G>T	p.Ala8Ser	missense_variant	Exon 1 of 13	1	NM_014319.5	ENSP00000308369.2
LEMD3	ENST00000541171.1	n.36G>T		non_coding_transcript_exon_variant	Exon 1 of 2	2

Frequencies

GnomAD3 genomes AF: 0.0000131 AC: 2 AN: 152176 Hom.: 0 Cov.: 32

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: 0.000207

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000147

Gnomad OTH AF: 0.00

GnomAD4 exome Cov.: 32

GnomAD4 genome AF: 0.0000131 AC: 2 AN: 152176 Hom.: 0 Cov.: 32 AF XY: 0.0000269 AC XY: 2 AN XY: 74338

Gnomad4 AFR AF: 0.00

Gnomad4 AMR AF: 0.00

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.000207

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.0000147

Gnomad4 OTH AF: 0.00

Bravo AF: 0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.086
BayesDel_addAF	Benign	-0.18	T
BayesDel_noAF	Benign	-0.49
CADD	Uncertain	24
DANN	Uncertain	0.99
DEOGEN2	Benign	0.34	T
Eigen	Benign	-0.33
Eigen_PC	Benign	-0.20
FATHMM_MKL	Uncertain	0.95	D
LIST_S2	Benign	0.65	T
M_CAP	Benign	0.023	T
MetaRNN	Benign	0.14	T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	1.3	L
PrimateAI	Uncertain	0.73	T
PROVEAN	Benign	0.080	N
REVEL	Benign	0.036
Sift	Pathogenic	0.0	D
Sift4G	Uncertain	0.046	D
Polyphen		0.094	B
Vest4		0.11
MutPred		0.34		Gain of phosphorylation at A8 (P = 0.0209);
MVP		0.32
ClinPred		0.96	D
GERP RS		2.1
Varity_R		0.43
gMVP		0.38

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: rs756414909; hg19: chr12-65563398;