rs141400587

Variant summary

Our verdict is Benign. The variant received -10 ACMG points: 0P and 10B. BP4_StrongBP6BP7BS2

The NM_003282.4(TNNI2):​c.354G>A​(p.Ser118Ser) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000428 in 1,613,224 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.0024 ( 2 hom., cov: 33)
Exomes 𝑓: 0.00023 ( 0 hom. )

Consequence

TNNI2
NM_003282.4 synonymous

Scores

2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:4

Conservation

PhyloP100: -8.22

Publications

1 publications found
Variant links:
Genes affected
TNNI2 (HGNC:11946): (troponin I2, fast skeletal type) This gene encodes a fast-twitch skeletal muscle protein, a member of the troponin I gene family, and a component of the troponin complex including troponin T, troponin C and troponin I subunits. The troponin complex, along with tropomyosin, is responsible for the calcium-dependent regulation of striated muscle contraction. Mouse studies show that this component is also present in vascular smooth muscle and may play a role in regulation of smooth muscle function. In addition to muscle tissues, this protein is found in corneal epithelium, cartilage where it is an inhibitor of angiogenesis to inhibit tumor growth and metastasis, and mammary gland where it functions as a co-activator of estrogen receptor-related receptor alpha. This protein also suppresses tumor growth in human ovarian carcinoma. Mutations in this gene cause myopathy and distal arthrogryposis type 2B. Alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, Mar 2009]
TNNI2 Gene-Disease associations (from GenCC):
  • distal arthrogryposis type 2B1
    Inheritance: AD, AR Classification: STRONG, MODERATE Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics
  • digitotalar dysmorphism
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • Sheldon-hall syndrome
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -10 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.76).
BP6
Variant 11-1841108-G-A is Benign according to our data. Variant chr11-1841108-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 167735.
BP7
Synonymous conserved (PhyloP=-8.23 with no splicing effect.
BS2
High Homozygotes in GnomAd4 at 2 AD,AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
TNNI2NM_003282.4 linkc.354G>A p.Ser118Ser synonymous_variant Exon 7 of 8 ENST00000381911.6 NP_003273.1
TNNI2NM_001145829.2 linkc.354G>A p.Ser118Ser synonymous_variant Exon 7 of 8 NP_001139301.1
TNNI2NM_001145841.2 linkc.354G>A p.Ser118Ser synonymous_variant Exon 5 of 6 NP_001139313.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
TNNI2ENST00000381911.6 linkc.354G>A p.Ser118Ser synonymous_variant Exon 7 of 8 2 NM_003282.4 ENSP00000371336.1
TNNI2ENST00000252898.11 linkc.354G>A p.Ser118Ser synonymous_variant Exon 6 of 7 3 ENSP00000252898.7
TNNI2ENST00000381905.3 linkc.354G>A p.Ser118Ser synonymous_variant Exon 5 of 6 3 ENSP00000371330.3
TNNI2ENST00000381906.5 linkc.354G>A p.Ser118Ser synonymous_variant Exon 7 of 8 3 ENSP00000371331.1

Frequencies

GnomAD3 genomes
AF:
0.00235
AC:
357
AN:
152216
Hom.:
2
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00787
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00111
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000192
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00316
Gnomad NFE
AF:
0.0000588
Gnomad OTH
AF:
0.00382
GnomAD2 exomes
AF:
0.000545
AC:
136
AN:
249566
AF XY:
0.000391
show subpopulations
Gnomad AFR exome
AF:
0.00716
Gnomad AMR exome
AF:
0.000261
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000546
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000622
Gnomad OTH exome
AF:
0.000329
GnomAD4 exome
AF:
0.000227
AC:
332
AN:
1460890
Hom.:
0
Cov.:
34
AF XY:
0.000190
AC XY:
138
AN XY:
726774
show subpopulations
African (AFR)
AF:
0.00693
AC:
232
AN:
33476
American (AMR)
AF:
0.000335
AC:
15
AN:
44714
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26126
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39698
South Asian (SAS)
AF:
0.0000232
AC:
2
AN:
86254
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
52538
Middle Eastern (MID)
AF:
0.000693
AC:
4
AN:
5768
European-Non Finnish (NFE)
AF:
0.0000369
AC:
41
AN:
1111938
Other (OTH)
AF:
0.000629
AC:
38
AN:
60378
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.473
Heterozygous variant carriers
0
25
50
75
100
125
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
20
40
60
80
100
<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:
0.00235
AC:
358
AN:
152334
Hom.:
2
Cov.:
33
AF XY:
0.00238
AC XY:
177
AN XY:
74484
show subpopulations
African (AFR)
AF:
0.00787
AC:
327
AN:
41564
American (AMR)
AF:
0.00111
AC:
17
AN:
15310
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.000193
AC:
1
AN:
5190
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4830
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10622
Middle Eastern (MID)
AF:
0.00340
AC:
1
AN:
294
European-Non Finnish (NFE)
AF:
0.0000588
AC:
4
AN:
68028
Other (OTH)
AF:
0.00378
AC:
8
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.508
Heterozygous variant carriers
0
19
38
57
76
95
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
10
20
30
40
50
<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:
0.00114
Hom.:
0
Bravo
AF:
0.00255
Asia WGS
AF:
0.000866
AC:
3
AN:
3478
EpiCase
AF:
0.0000545
EpiControl
AF:
0.0000593

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:4
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not specified Uncertain:1Benign:1
Aug 01, 2013
Eurofins Ntd Llc (ga)
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Nov 07, 2014
Genetic Services Laboratory, University of Chicago
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

not provided Benign:2
Dec 31, 2019
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Feb 26, 2019
GeneDx
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

TNNI2-related disorder Benign:1
May 22, 2023
PreventionGenetics, part of Exact Sciences
Significance:Benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

This 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
-0.76
CADD
Benign
2.0
DANN
Benign
0.85
PhyloP100
-8.2
Mutation Taster
=100/0
polymorphism

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

Other links and lift over

dbSNP: rs141400587; hg19: chr11-1862338; API