chr13-52703747-C-G
Variant summary
Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2
The NM_007015.3(CNMD):c.853G>C(p.Glu285Gln) variant causes a missense change. The variant allele was found at a frequency of 0.00000867 in 1,614,080 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).
Frequency
Genomes: 𝑓 0.000013 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000082 ( 0 hom. )
Consequence
CNMD
NM_007015.3 missense
NM_007015.3 missense
Scores
3
6
8
Clinical Significance
Conservation
PhyloP100: 5.76
Genes affected
CNMD (HGNC:17005): (chondromodulin) This gene encodes a glycosylated transmembrane protein that is cleaved to form a mature, secreted protein. The N-terminus of the precursor protein shares characteristics with other surfactant proteins and is sometimes called chondrosurfactant protein although no biological activity has yet been defined for it. The C-terminus of the precursor protein contains a 25 kDa mature protein called leukocyte cell-derived chemotaxin-1 or chondromodulin-1. The mature protein promotes chondrocyte growth and inhibits angiogenesis. This gene is expressed in the avascular zone of prehypertrophic cartilage and its expression decreases during chondrocyte hypertrophy and vascular invasion. The mature protein likely plays a role in endochondral bone development by permitting cartilaginous anlagen to be vascularized and replaced by bone. It may be involved also in the broad control of tissue vascularization during development. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Jul 2008]
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ACMG classification
Classification made for transcript
Verdict is Uncertain_significance. Variant got 2 ACMG points.
PM2
?
Very rare variant in population databases, with high coverage;
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
CNMD | NM_007015.3 | c.853G>C | p.Glu285Gln | missense_variant | 7/7 | ENST00000377962.8 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
CNMD | ENST00000377962.8 | c.853G>C | p.Glu285Gln | missense_variant | 7/7 | 1 | NM_007015.3 | P4 | |
CNMD | ENST00000448904.6 | c.850G>C | p.Glu284Gln | missense_variant | 7/7 | 1 | A1 |
Frequencies
GnomAD3 genomes ? AF: 0.0000131 AC: 2AN: 152214Hom.: 0 Cov.: 33
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GnomAD3 exomes AF: 0.0000319 AC: 8AN: 251044Hom.: 0 AF XY: 0.0000147 AC XY: 2AN XY: 135732
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GnomAD4 exome AF: 0.00000821 AC: 12AN: 1461866Hom.: 0 Cov.: 31 AF XY: 0.00000550 AC XY: 4AN XY: 727234
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GnomAD4 genome ? AF: 0.0000131 AC: 2AN: 152214Hom.: 0 Cov.: 33 AF XY: 0.00 AC XY: 0AN XY: 74370
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ClinVar
Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
not specified Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Ambry Genetics | Sep 13, 2023 | The c.853G>C (p.E285Q) alteration is located in exon 7 (coding exon 7) of the LECT1 gene. This alteration results from a G to C substitution at nucleotide position 853, causing the glutamic acid (E) at amino acid position 285 to be replaced by a glutamine (Q). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
BayesDel_addAF
Benign
T
BayesDel_noAF
Uncertain
Cadd
Pathogenic
Dann
Uncertain
Eigen
Pathogenic
Eigen_PC
Pathogenic
FATHMM_MKL
Pathogenic
D
LIST_S2
Uncertain
D;D
M_CAP
Benign
T
MetaRNN
Uncertain
D;D
MetaSVM
Benign
T
MutationTaster
Benign
D;D
PrimateAI
Uncertain
T
PROVEAN
Benign
N;N
REVEL
Benign
Sift
Benign
T;T
Sift4G
Uncertain
D;D
Polyphen
D;D
Vest4
MutPred
0.47
.;Gain of catalytic residue at R287 (P = 9e-04);
MVP
MPC
0.67
ClinPred
D
GERP RS
Varity_R
gMVP
Splicing
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SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at