chr11-62667670-C-T

Position:

• chr11-62667670-C-T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_024099.5(LBHD1):​c.391G>A​(p.Asp131Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,892 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/18 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: LBHD1 NM_024099.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.533

Genes affected

LBHD1 (HGNC:28351): (LBH domain containing 1) This gene shares three exons in common with another gene, chromosome 11 open reading frame 98 (GeneID:102288414), but the encoded protein uses a reading frame that is different from that of the chromosome 11 open reading frame 98 gene. [provided by RefSeq, Nov 2017]

CSKMT (HGNC:33113): (citrate synthase lysine methyltransferase) Enables protein-lysine N-methyltransferase activity. Involved in peptidyl-lysine dimethylation; peptidyl-lysine monomethylation; and peptidyl-lysine trimethylation. Predicted to be located in mitochondrion. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Verdict is Likely_benign. Variant got -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.06003359).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
LBHD1	NM_024099.5	c.391G>A	p.Asp131Asn	missense_variant	4/7	ENST00000354588.8	NP_077004.2
CSKMT	NM_001043229.2	c.*619C>T		3_prime_UTR_variant	3/3	ENST00000532971.2	NP_001036694.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
LBHD1	ENST00000354588.8	c.391G>A	p.Asp131Asn	missense_variant	4/7	1	NM_024099.5	ENSP00000346600	P1
CSKMT	ENST00000532971.2	c.*619C>T		3_prime_UTR_variant	3/3	2	NM_001043229.2	ENSP00000431287	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461892 Hom.: 0 Cov.: 31 AF XY: 0.00000138 AC XY: 1 AN XY: 727246

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 8.99e-7

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jul 19, 2023

The c.391G>A (p.D131N) alteration is located in exon 4 (coding exon 3) of the LBHD1 gene. This alteration results from a G to A substitution at nucleotide position 391, causing the aspartic acid (D) at amino acid position 131 to be replaced by an asparagine (N). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.11
BayesDel_addAF	Benign	-0.27	T
BayesDel_noAF	Benign	-0.62
CADD	Benign	17
DANN	Uncertain	0.99
DEOGEN2	Benign	0.020	.;T;.;T;.
Eigen	Benign	-0.83
Eigen_PC	Benign	-0.84
FATHMM_MKL	Benign	0.19	N
LIST_S2	Benign	0.55	.;T;T;T;T
M_CAP	Benign	0.0035	T
MetaRNN	Benign	0.060	T;T;T;T;T
MetaSVM	Benign	-1.0	T
MutationTaster	Benign	1.0	N;N;N;N
PROVEAN	Benign	-1.6	N;N;N;.;.
REVEL	Benign	0.026
Sift	Benign	0.29	T;T;T;.;.
Sift4G	Benign	0.69	T;T;T;.;.
Polyphen		0.12	B;.;B;.;.
Vest4		0.21
MutPred		0.28		Loss of disorder (P = 0.1683);.;Loss of disorder (P = 0.1683);.;.;
MVP		0.030
MPC		0.14
ClinPred		0.16	T
GERP RS		3.3
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		2.1
Varity_R		0.086
gMVP		0.0056

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr11-62435142;