Genetic Variant LAMA5:c.568+17G>T (chr20-62353117-C-A) – ACMG Classification: Benign (-14 pts)

Variant summary

Our verdict is Benign. The variant received -14 ACMG points: 0P and 14B. BP4_StrongBP6_ModerateBS1BS2

The NM_005560.6(LAMA5):c.568+17G>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000199 in 1,543,404 control chromosomes in the GnomAD database, including 6 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: 𝑓 0.00011 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00021 ( 6 hom. )

Consequence

LAMA5
NM_005560.6 intron

Scores

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: -0.376

Publications

0 publications found

Variant links:

Genes affected

LAMA5 (HGNC:6485): (laminin subunit alpha 5) This gene encodes one of the vertebrate laminin alpha chains. Laminins, a family of extracellular matrix glycoproteins, are the major noncollagenous constituent of basement membranes. They have been implicated in a wide variety of biological processes including cell adhesion, differentiation, migration, signaling, neurite outgrowth and metastasis. Laminins are composed of 3 non identical chains: laminin alpha, beta and gamma (formerly A, B1, and B2, respectively) and they form a cruciform structure consisting of 3 short arms, each formed by a different chain, and a long arm composed of all 3 chains. Each laminin chain is a multidomain protein encoded by a distinct gene. The protein encoded by this gene is the alpha-5 subunit of of laminin-10 (laminin-511), laminin-11 (laminin-521) and laminin-15 (laminin-523). [provided by RefSeq, Jun 2013]

LAMA5 links:

LAMA5-AS1 (HGNC:40334): (LAMA5 antisense RNA 1)

LAMA5-AS1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -14 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.84).

BP6

Variant 20-62353117-C-A is Benign according to our data. Variant chr20-62353117-C-A is described in ClinVar as Benign. ClinVar VariationId is 1898328.Status of the report is criteria_provided_single_submitter, 1 stars.

BS1

Variant frequency is greater than expected in population sas. GnomAdExome4 allele frequency = 0.000209 (291/1391100) while in subpopulation SAS AF = 0.00346 (275/79550). AF 95% confidence interval is 0.00312. There are 6 homozygotes in GnomAdExome4. There are 208 alleles in the male GnomAdExome4 subpopulation. Median coverage is 27. This position passed quality control check.

BS2

High Homozygotes in GnomAdExome4 at 6 AR,AD gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_005560.6. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	Effect	Exon Rank	Protein
LAMA5	NM_005560.6	MANE Select	c.568+17G>T	intron	N/A	NP_005551.3
LAMA5-AS1	NR_109922.1		n.108C>A	non_coding_transcript_exon	Exon 1 of 3
LAMA5-AS1	NR_109923.1		n.108C>A	non_coding_transcript_exon	Exon 1 of 2

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	Effect	Exon Rank	Protein	UniProt
LAMA5	ENST00000252999.7	TSL:1 MANE Select	c.568+17G>T	intron	N/A	ENSP00000252999.3	O15230-1
LAMA5-AS1	ENST00000456721.5	TSL:2	n.148C>A	non_coding_transcript_exon	Exon 1 of 2
LAMA5-AS1	ENST00000477848.5	TSL:3	n.108C>A	non_coding_transcript_exon	Exon 1 of 3

Frequencies

GnomAD3 genomes

AF:

0.000112

AC:

AN:

152186

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00352

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000407

AC:

AN:

171856

AF XY:

0.000555

show subpopulations

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 FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000209

AC:

291

AN:

1391100

Hom.:

Cov.:

AF XY:

0.000302

AC XY:

208

AN XY:

688664

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

31798

American (AMR)

AF:

0.00

AC:

AN:

37558

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

24964

East Asian (EAS)

AF:

0.00

AC:

AN:

36804

South Asian (SAS)

AF:

0.00346

AC:

275

AN:

79550

European-Finnish (FIN)

AF:

0.00

AC:

AN:

48498

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5656

European-Non Finnish (NFE)

AF:

0.00000561

AC:

AN:

1068594

Other (OTH)

AF:

0.000173

AC:

AN:

57678

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.499

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.000105

AC:

AN:

152304

Hom.:

Cov.:

AF XY:

0.000148

AC XY:

AN XY:

74456

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41560

American (AMR)

AF:

0.00

AC:

AN:

15306

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5170

South Asian (SAS)

AF:

0.00332

AC:

AN:

4820

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10622

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68032

Other (OTH)

AF:

0.00

AC:

AN:

2116

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.484

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.0000508

Hom.:

Bravo

AF:

0.00000756

Asia WGS

AF:

0.000577

AC:

AN:

3478

ClinVar

ClinVar submissions

Significance:Benign

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.84

CADD

Benign

0.44

(source)

DANN

Benign

0.57

PhyloP100

-0.38

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.0

Mutation Taster

=100/0

polymorphism

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over