NM_005768.6:c.1455G>C

Variant names:

• chr12-6977155-C-G
• rs1405137368
• NM_005768.6:c.1455G>C

Variant summary

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

The NM_005768.6(LPCAT3):​c.1455G>C​(p.Lys485Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000437 in 1,602,018 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. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: 𝑓 0.000033 (0 hom., cov: 32)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: LPCAT3 NM_005768.6 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.630
• Publications: 0 publications found

Genes affected

LPCAT3 (HGNC:30244): (lysophosphatidylcholine acyltransferase 3) Enables 1-acylglycerophosphocholine O-acyltransferase activity; 1-acylglycerophosphoethanolamine O-acyltransferase activity; and 1-acylglycerophosphoserine O-acyltransferase activity. Involved in phosphatidylcholine acyl-chain remodeling; phosphatidylethanolamine acyl-chain remodeling; and phosphatidylserine acyl-chain remodeling. Located in endoplasmic reticulum membrane. [provided by Alliance of Genome Resources, Apr 2022]

EMG1 (HGNC:16912): (EMG1 N1-specific pseudouridine methyltransferase) This gene encodes an essential, conserved eukaryotic protein that methylates pseudouridine in 18S rRNA. The related protein in yeast is a component of the small subunit processome and is essential for biogenesis of the ribosomal 40S subunit. A mutation in this gene has been associated with Bowen-Conradi syndrome. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Feb 2016]

EMG1 Gene-Disease associations (from GenCC):

• Bowen-Conradi syndrome

  Inheritance: AR Classification: STRONG, MODERATE, SUPPORTIVE, LIMITED Submitted by: ClinGen, G2P, Orphanet, Ambry Genetics, Labcorp Genetics (formerly Invitae)

ENSG00000290146 (HGNC:):

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=0.15139943).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_005768.6. 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
	LPCAT3	NM_005768.6	MANE Select	c.1455G>C	p.Lys485Asn	missense	Exon 12 of 13	NP_005759.4
	EMG1	NM_006331.8	MANE Select	c.*1346C>G		3_prime_UTR	Exon 6 of 6	NP_006322.4
	EMG1	NM_001320049.2		c.*1346C>G		3_prime_UTR	Exon 5 of 5	NP_001306978.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	LPCAT3	ENST00000261407.9	TSL:1 MANE Select	c.1455G>C	p.Lys485Asn	missense	Exon 12 of 13	ENSP00000261407.4	Q6P1A2-1
	EMG1	ENST00000599672.6	TSL:1 MANE Select	c.*1346C>G		3_prime_UTR	Exon 6 of 6	ENSP00000470560.1	Q92979
	LPCAT3	ENST00000535479.5	TSL:1	n.*1078G>C		non_coding_transcript_exon	Exon 10 of 11	ENSP00000438765.1	F5H0M4

Frequencies

GnomAD3 genomes AF: 0.0000329 AC: 5 AN: 152144 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.000121

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: 0.00

Gnomad OTH AF: 0.00

GnomAD4 exome AF: 0.00000138 AC: 2 AN: 1449874 Hom.: 0 Cov.: 28 AF XY: 0.00 AC XY: 0 AN XY: 722018

African (AFR) AF: 0.0000602 AC: 2 AN: 33230

American (AMR) AF: 0.00 AC: 0 AN: 44692

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26044

East Asian (EAS) AF: 0.00 AC: 0 AN: 39628

South Asian (SAS) AF: 0.00 AC: 0 AN: 85978

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53412

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5738

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1101150

Other (OTH) AF: 0.00 AC: 0 AN: 60002

GnomAD4 genome AF: 0.0000329 AC: 5 AN: 152144 Hom.: 0 Cov.: 32 AF XY: 0.0000538 AC XY: 4 AN XY: 74334

African (AFR) AF: 0.000121 AC: 5 AN: 41408

American (AMR) AF: 0.00 AC: 0 AN: 15274

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

East Asian (EAS) AF: 0.00 AC: 0 AN: 5200

South Asian (SAS) AF: 0.00 AC: 0 AN: 4832

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10610

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

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68028

Other (OTH) AF: 0.00 AC: 0 AN: 2092

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.0000491

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	0.25
BayesDel_addAF	Benign	-0.13	T
BayesDel_noAF	Benign	-0.42
CADD	Benign	17
DANN	Uncertain	0.99
DEOGEN2	Benign	0.041	T
Eigen	Benign	-0.48
Eigen_PC	Benign	-0.42
FATHMM_MKL	Uncertain	0.97	D
LIST_S2	Benign	0.61	T
M_CAP	Benign	0.047	D
MetaRNN	Benign	0.15	T
MetaSVM	Benign	-0.93	T
MutationAssessor	Benign	1.7	L
PhyloP100		0.63
PrimateAI	Uncertain	0.51	T
PROVEAN	Benign	-1.3	N
REVEL	Benign	0.13
Sift	Uncertain	0.0090	D
Sift4G	Uncertain	0.011	D
Polyphen		0.74	P
Vest4		0.42
MutPred		0.24		Loss of helix (P = 0.0376)
MVP		0.30
MPC		0.85
ClinPred		0.31	T
GERP RS		1.2
Varity_R		0.12
gMVP		0.62
Mutation Taster		=89/11	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: rs1405137368; hg19: chr12-7086317;