dbSNP rs137852952: TLL1:p.Val238Ala (chr4-166003471-T-C) – ACMG Classification: Likely_benign (-4 pts)

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BS2

The NM_012464.5(TLL1):c.713T>C(p.Val238Ala) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000397 in 1,614,062 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00024 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00041 ( 0 hom. )

Consequence

TLL1
NM_012464.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter P:1U:1

Conservation

PhyloP100: 8.02

Publications

14 publications found

Variant links:

Genes affected

TLL1 (HGNC:11843): (tolloid like 1) This gene encodes an astacin-like, zinc-dependent, metalloprotease that belongs to the peptidase M12A family. This protease processes procollagen C-propeptides, such as chordin, pro-biglycan and pro-lysyl oxidase. Studies in mice suggest that this gene plays multiple roles in the development of mammalian heart, and is essential for the formation of the interventricular septum. Allelic variants of this gene are associated with atrial septal defect type 6. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Mar 2011]

TLL1 Gene-Disease associations (from GenCC):

atrial septal defect 6
Inheritance: AD Classification: STRONG, LIMITED Submitted by: Ambry Genetics, G2P, PanelApp Australia
congenital heart disease
Inheritance: AD Classification: LIMITED Submitted by: ClinGen
mitral valve prolapse
Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics

TLL1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

BS2

High AC in GnomAd4 at 37 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_012464.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	TLL1	NM_012464.5	MANE Select	c.713T>C	p.Val238Ala	missense	Exon 6 of 21	NP_036596.3
	TLL1	NM_001204760.2		c.713T>C	p.Val238Ala	missense	Exon 6 of 10	NP_001191689.1	O43897-2

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
TLL1	ENST00000061240.7	TSL:1 MANE Select	c.713T>C	p.Val238Ala	missense	Exon 6 of 21	ENSP00000061240.2	O43897-1
TLL1	ENST00000507499.5	TSL:1	c.713T>C	p.Val238Ala	missense	Exon 6 of 22	ENSP00000426082.1	E9PD25
TLL1	ENST00000513213.5	TSL:1	c.713T>C	p.Val238Ala	missense	Exon 6 of 10	ENSP00000422937.1	O43897-2

Frequencies

GnomAD3 genomes

AF:

0.000243

AC:

AN:

152156

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000500

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000211

AC:

AN:

251434

AF XY:

0.000169

show subpopulations

Gnomad AFR exome

AF:

0.000246

Gnomad AMR exome

AF:

0.0000578

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000404

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.000413

AC:

604

AN:

1461788

Hom.:

Cov.:

AF XY:

0.000402

AC XY:

292

AN XY:

727198

show subpopulations

African (AFR)

AF:

0.000119

AC:

AN:

33474

American (AMR)

AF:

0.0000671

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26128

East Asian (EAS)

AF:

0.00

AC:

AN:

39690

South Asian (SAS)

AF:

0.00

AC:

AN:

86256

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53418

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.000520

AC:

578

AN:

1111938

Other (OTH)

AF:

0.000315

AC:

AN:

60392

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

131

164

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

120

<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:

0.000243

AC:

AN:

152274

Hom.:

Cov.:

AF XY:

0.000148

AC XY:

AN XY:

74454

show subpopulations

African (AFR)

AF:

0.0000481

AC:

AN:

41556

American (AMR)

AF:

0.0000654

AC:

AN:

15292

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3468

East Asian (EAS)

AF:

0.00

AC:

AN:

5166

South Asian (SAS)

AF:

0.00

AC:

AN:

4824

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10624

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000500

AC:

AN:

68024

Other (OTH)

AF:

0.00

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.524

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:

0.000415

Hom.:

Bravo

AF:

0.000200

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.000259

AC:

ESP6500AA

AF:

0.000227

AC:

ESP6500EA

AF:

0.000581

AC:

ExAC

AF:

0.000181

AC:

EpiCase

AF:

0.000436

EpiControl

AF:

0.000474

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

Atrial septal defect 6 (1)

not provided (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.93

BayesDel_addAF

Uncertain

0.11

BayesDel_noAF

Pathogenic

0.24

CADD

Uncertain

(source)

DANN

Uncertain

0.98

DEOGEN2

Uncertain

0.46

Eigen

Benign

0.16

Eigen_PC

Uncertain

0.23

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.96

M_CAP

Benign

0.045

MetaRNN

Uncertain

0.73

MetaSVM

Benign

-0.37

MutationAssessor

Uncertain

2.2

PhyloP100

8.0

PrimateAI

Pathogenic

0.90

PROVEAN

Uncertain

-3.7

REVEL

Uncertain

0.63

Sift

Uncertain

0.0090

Sift4G

Uncertain

0.033

Polyphen

0.026

Vest4

0.92

MVP

0.61

MPC

0.90

ClinPred

0.12

GERP RS

5.3

Varity_R

0.83

gMVP

0.91

Mutation Taster

=5/95

disease causing (ClinVar)

(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