rs869312033
Variant summary
Our verdict is Pathogenic. Variant got 12 ACMG points: 12P and 0B. PVS1PM2PP5_Moderate
The NM_005570.4(LMAN1):c.1356del(p.Leu453Ter) variant causes a frameshift change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Pathogenic (★). Variant results in nonsense mediated mRNA decay.
Frequency
Genomes: not found (cov: 32)
Consequence
LMAN1
NM_005570.4 frameshift
NM_005570.4 frameshift
Scores
Not classified
Clinical Significance
Conservation
PhyloP100: 2.03
Genes affected
LMAN1 (HGNC:6631): (lectin, mannose binding 1) The protein encoded by this gene is a membrane mannose-specific lectin that cycles between the endoplasmic reticulum, endoplasmic reticulum-Golgi intermediate compartment, and cis-Golgi, functioning as a cargo receptor for glycoprotein transport. The protein has an N-terminal signal sequence, a calcium-dependent and pH-sensitive carbohydrate recognition domain, a stalk region that functions in oligomerization, a transmembrane domain, and a short cytoplasmic domain required for organelle targeting. Allelic variants of this gene are associated with the autosomal recessive disorder combined factor V-factor VIII deficiency. [provided by RefSeq, Jul 2015]
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ACMG classification
Classification made for transcript
Verdict is Pathogenic. Variant got 12 ACMG points.
PVS1
?
Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
PM2
?
Very rare variant in population databases, with high coverage;
PP5
?
Variant 18-59333108-AG-A is Pathogenic according to our data. Variant chr18-59333108-AG-A is described in ClinVar as [Pathogenic]. Clinvar id is 8065.Status of the report is criteria_provided_single_submitter, 1 stars.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
LMAN1 | NM_005570.4 | c.1356del | p.Leu453Ter | frameshift_variant | 11/13 | ENST00000251047.6 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
LMAN1 | ENST00000251047.6 | c.1356del | p.Leu453Ter | frameshift_variant | 11/13 | 1 | NM_005570.4 | P1 | |
LMAN1 | ENST00000587918.1 | n.583del | non_coding_transcript_exon_variant | 1/2 | 2 |
Frequencies
GnomAD3 genomes ? Cov.: 32
GnomAD3 genomes
?
Cov.:
32
GnomAD4 exome Cov.: 32
GnomAD4 exome
Cov.:
32
GnomAD4 genome ? Cov.: 32
GnomAD4 genome
?
Cov.:
32
ClinVar
Significance: Pathogenic
Submissions summary: Pathogenic:2
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
Factor V and factor VIII, combined deficiency of, type 1 Pathogenic:1
Pathogenic, no assertion criteria provided | literature only | OMIM | Jun 15, 2008 | - - |
LMAN1-related disorder Pathogenic:1
Pathogenic, criteria provided, single submitter | clinical testing | PreventionGenetics, part of Exact Sciences | Aug 29, 2023 | The LMAN1 c.1356delC variant is predicted to result in premature protein termination (p.Leu453*). This variant in homozygous state was reported in two siblings affected with combined deficiency of factor V and factor VIII (Zhang et al. 2008. PubMed ID: 18391077). This variant has not been reported in a large population database (http://gnomad.broadinstitute.org), indicating this variant is rare. Nonsense variants in LMAN1 are expected to be pathogenic. This variant is interpreted as pathogenic. - |
Computational scores
Source:
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Calibrated prediction
Score
Prediction
Splicing
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Calibrated prediction
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SpliceAI score (max)
Details are displayed if max score is > 0.2
DS_DG_spliceai
Position offset: 22
Find out detailed SpliceAI scores and Pangolin per-transcript scores at