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9-35700020-C-T

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 1P and 6B. PP2BP4_ModerateBS2

The NM_006289.4(TLN1):​c.6722G>A​(p.Arg2241Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000359 in 1,613,448 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R2241W) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000036 ( 0 hom. )

Consequence

TLN1
NM_006289.4 missense

Scores

3
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.673
Variant links:
Genes affected
TLN1 (HGNC:11845): (talin 1) This gene encodes a cytoskeletal protein that is concentrated in areas of cell-substratum and cell-cell contacts. The encoded protein plays a significant role in the assembly of actin filaments and in spreading and migration of various cell types, including fibroblasts and osteoclasts. It codistributes with integrins in the cell surface membrane in order to assist in the attachment of adherent cells to extracellular matrices and of lymphocytes to other cells. The N-terminus of this protein contains elements for localization to cell-extracellular matrix junctions. The C-terminus contains binding sites for proteins such as beta-1-integrin, actin, and vinculin. [provided by RefSeq, Feb 2009]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

PP2
Missense variant where missense usually causes diseases, TLN1
BP4
Computational evidence support a benign effect (MetaRNN=0.14450648).
BS2
High AC in GnomAd4 at 6 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TLN1NM_006289.4 linkuse as main transcriptc.6722G>A p.Arg2241Gln missense_variant 50/57 ENST00000314888.10

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TLN1ENST00000314888.10 linkuse as main transcriptc.6722G>A p.Arg2241Gln missense_variant 50/571 NM_006289.4 P1
TLN1ENST00000706939.1 linkuse as main transcriptc.6773G>A p.Arg2258Gln missense_variant 51/58

Frequencies

GnomAD3 genomes
AF:
0.0000395
AC:
6
AN:
152062
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000725
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:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000319
AC:
8
AN:
251086
Hom.:
0
AF XY:
0.0000369
AC XY:
5
AN XY:
135672
show subpopulations
Gnomad AFR exome
AF:
0.0000615
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000617
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000356
AC:
52
AN:
1461386
Hom.:
0
Cov.:
31
AF XY:
0.0000316
AC XY:
23
AN XY:
726900
show subpopulations
Gnomad4 AFR exome
AF:
0.000149
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000414
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000395
AC:
6
AN:
152062
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74272
show subpopulations
Gnomad4 AFR
AF:
0.0000725
Gnomad4 AMR
AF:
0.0000655
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000901
Hom.:
0
Bravo
AF:
0.0000453
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.0000330
AC:
4
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

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 submitterclinical testingAmbry GeneticsAug 08, 2023The c.6722G>A (p.R2241Q) alteration is located in exon 50 (coding exon 49) of the TLN1 gene. This alteration results from a G to A substitution at nucleotide position 6722, causing the arginine (R) at amino acid position 2241 to be replaced by a glutamine (Q). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.063
BayesDel_addAF
Benign
-0.26
T
BayesDel_noAF
Benign
-0.43
CADD
Benign
22
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.59
D
Eigen
Benign
-0.20
Eigen_PC
Benign
-0.021
FATHMM_MKL
Benign
0.52
D
LIST_S2
Uncertain
0.91
D
M_CAP
Benign
0.0071
T
MetaRNN
Benign
0.14
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.49
N
MutationTaster
Benign
0.92
N;N
PrimateAI
Benign
0.42
T
PROVEAN
Benign
-1.3
N
REVEL
Benign
0.076
Sift
Benign
0.16
T
Sift4G
Benign
0.20
T
Polyphen
0.081
B
Vest4
0.16
MVP
0.43
MPC
0.58
ClinPred
0.10
T
GERP RS
5.4
RBP_binding_hub_radar
0.92
RBP_regulation_power_radar
2.7
Varity_R
0.052
gMVP
0.23

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: rs144879123; hg19: chr9-35700017; API