10-75782986-A-G

Position:

• chr10-75782986-A-G

Variant summary

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

The NM_001305581.2(LRMDA):​c.132-253022A>G variant causes a intron change. The variant allele was found at a frequency of 0.000000684 in 1,461,836 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts 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: LRMDA NM_001305581.2 intron
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 5.01

Genes affected

LRMDA (HGNC:23405): (leucine rich melanocyte differentiation associated) This gene encodes a leucine-rich repeat protein. The encoded protein is thought to play a role in melanocyte differentiation. Mutations in this gene have been associated with autosomal recessive oculocutaneous albinism 7 (OCA7). Alternatively spliced transcript variants have been identified. [provided by RefSeq, Mar 2015]

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=0.14275992).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
LRMDA	NM_001305581.2	c.132-253022A>G		intron_variant		ENST00000611255.5	NP_001292510.1
LRMDA	NM_032024.5	c.11A>G	p.Tyr4Cys	missense_variant	1/6		NP_114413.1
LRMDA	NR_131178.2	n.86-99670A>G		intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
LRMDA	ENST00000372499.5	c.11A>G	p.Tyr4Cys	missense_variant	1/6	1		ENSP00000361577
LRMDA	ENST00000611255.5	c.132-253022A>G		intron_variant		5	NM_001305581.2	ENSP00000480240	P1
LRMDA	ENST00000593699.5	n.86-99670A>G		intron_variant, non_coding_transcript_variant		1
LRMDA	ENST00000593817.1	n.92+181655A>G		intron_variant, non_coding_transcript_variant		3

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD3 exomes AF: 0.00000398 AC: 1 AN: 251014 Hom.: 0 AF XY: 0.00 AC XY: 0 AN XY: 135686

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 SAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00000881

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461836 Hom.: 0 Cov.: 32 AF XY: 0.00000138 AC XY: 1 AN XY: 727214

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: 0.00

Gnomad4 OTH exome AF: 0.0000166

GnomAD4 genome Cov.: 32

ExAC AF: 0.00000824 AC: 1

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Oct 13, 2022

In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated. This variant has not been reported in the literature in individuals affected with C10orf11-related conditions. This variant is present in population databases (rs753971789, gnomAD 0.0009%). This sequence change replaces tyrosine, which is neutral and polar, with cysteine, which is neutral and slightly polar, at codon 4 of the C10orf11 protein (p.Tyr4Cys). -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.29
BayesDel_addAF	Benign	-0.098	T
BayesDel_noAF	Benign	-0.38
CADD	Benign	20
DANN	Uncertain	0.99
DEOGEN2	Benign	0.0032	T
Eigen	Benign	-0.14
Eigen_PC	Benign	0.099
FATHMM_MKL	Uncertain	0.95	D
LIST_S2	Benign	0.54	T
M_CAP	Benign	0.0084	T
MetaRNN	Benign	0.14	T
MetaSVM	Benign	-1.1	T
MutationTaster	Benign	1.0	D;N
PROVEAN	Benign	-0.71	N
REVEL	Benign	0.067
Sift	Benign	0.12	T
Sift4G	Benign	0.17	T
Polyphen		0.063	B
Vest4		0.34
MutPred		0.31		Gain of catalytic residue at L5 (P = 0.0104);
MVP		0.46
MPC		0.17
ClinPred		0.41	T
GERP RS		5.6
Varity_R		0.095

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: rs753971789; hg19: chr10-77542744; COSMIC: COSV100995700;