chr12-91108473-A-G

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BA1

The NM_002345.4(LUM):ā€‹c.507T>Cā€‹(p.Asn169=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0307 in 1,614,026 control chromosomes in the GnomAD database, including 2,123 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (ā˜…ā˜…).

Frequency

Genomes: š‘“ 0.031 ( 250 hom., cov: 32)
Exomes š‘“: 0.031 ( 1873 hom. )

Consequence

LUM
NM_002345.4 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: 1.05
Variant links:
Genes affected
LUM (HGNC:6724): (lumican) This gene encodes a member of the small leucine-rich proteoglycan (SLRP) family that includes decorin, biglycan, fibromodulin, keratocan, epiphycan, and osteoglycin. In these bifunctional molecules, the protein moiety binds collagen fibrils and the highly charged hydrophilic glycosaminoglycans regulate interfibrillar spacings. Lumican is the major keratan sulfate proteoglycan of the cornea but is also distributed in interstitial collagenous matrices throughout the body. Lumican may regulate collagen fibril organization and circumferential growth, corneal transparency, and epithelial cell migration and tissue repair. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.58).
BP6
Variant 12-91108473-A-G is Benign according to our data. Variant chr12-91108473-A-G is described in ClinVar as [Benign]. Clinvar id is 1275250.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=1.05 with no splicing effect.
BA1
GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.249 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
LUMNM_002345.4 linkuse as main transcriptc.507T>C p.Asn169= synonymous_variant 2/3 ENST00000266718.5

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
LUMENST00000266718.5 linkuse as main transcriptc.507T>C p.Asn169= synonymous_variant 2/31 NM_002345.4 P1
LUMENST00000546642.1 linkuse as main transcriptn.257T>C non_coding_transcript_exon_variant 2/33
LUMENST00000548071.1 linkuse as main transcriptn.90-190T>C intron_variant, non_coding_transcript_variant 3

Frequencies

GnomAD3 genomes
AF:
0.0312
AC:
4739
AN:
152086
Hom.:
249
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0154
Gnomad AMI
AF:
0.00548
Gnomad AMR
AF:
0.0397
Gnomad ASJ
AF:
0.0185
Gnomad EAS
AF:
0.261
Gnomad SAS
AF:
0.0906
Gnomad FIN
AF:
0.0198
Gnomad MID
AF:
0.0570
Gnomad NFE
AF:
0.0197
Gnomad OTH
AF:
0.0321
GnomAD3 exomes
AF:
0.0522
AC:
13094
AN:
250934
Hom.:
940
AF XY:
0.0522
AC XY:
7075
AN XY:
135578
show subpopulations
Gnomad AFR exome
AF:
0.0141
Gnomad AMR exome
AF:
0.0568
Gnomad ASJ exome
AF:
0.0168
Gnomad EAS exome
AF:
0.270
Gnomad SAS exome
AF:
0.0849
Gnomad FIN exome
AF:
0.0233
Gnomad NFE exome
AF:
0.0214
Gnomad OTH exome
AF:
0.0415
GnomAD4 exome
AF:
0.0306
AC:
44767
AN:
1461822
Hom.:
1873
Cov.:
33
AF XY:
0.0319
AC XY:
23209
AN XY:
727210
show subpopulations
Gnomad4 AFR exome
AF:
0.0133
Gnomad4 AMR exome
AF:
0.0556
Gnomad4 ASJ exome
AF:
0.0174
Gnomad4 EAS exome
AF:
0.232
Gnomad4 SAS exome
AF:
0.0817
Gnomad4 FIN exome
AF:
0.0246
Gnomad4 NFE exome
AF:
0.0191
Gnomad4 OTH exome
AF:
0.0403
GnomAD4 genome
AF:
0.0312
AC:
4744
AN:
152204
Hom.:
250
Cov.:
32
AF XY:
0.0344
AC XY:
2561
AN XY:
74418
show subpopulations
Gnomad4 AFR
AF:
0.0156
Gnomad4 AMR
AF:
0.0396
Gnomad4 ASJ
AF:
0.0185
Gnomad4 EAS
AF:
0.261
Gnomad4 SAS
AF:
0.0909
Gnomad4 FIN
AF:
0.0198
Gnomad4 NFE
AF:
0.0197
Gnomad4 OTH
AF:
0.0313
Alfa
AF:
0.0207
Hom.:
21
Bravo
AF:
0.0323
Asia WGS
AF:
0.169
AC:
586
AN:
3478
EpiCase
AF:
0.0212
EpiControl
AF:
0.0190

ClinVar

Significance: Benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Benign, criteria provided, single submitterclinical testingGeneDxJun 09, 2021- -
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
LUM-related disorder Benign:1
Benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesFeb 28, 2019This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.58
CADD
Benign
3.8
DANN
Benign
0.40

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

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs17853500; hg19: chr12-91502250; COSMIC: COSV57127703; API