chr12-43795668-C-A

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2BP4

The NM_002822.5(TWF1):​c.970G>T​(p.Ala324Ser) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Consequence

TWF1
NM_002822.5 missense

Scores

2
4
12

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.05

Publications

0 publications found
Variant links:
Genes affected
TWF1 (HGNC:9620): (twinfilin actin binding protein 1) This gene encodes twinfilin, an actin monomer-binding protein conserved from yeast to mammals. Studies of the mouse counterpart suggest that this protein may be an actin monomer-binding protein, and its localization to cortical G-actin-rich structures may be regulated by the small GTPase RAC1. [provided by RefSeq, Jul 2008]
IRAK4 (HGNC:17967): (interleukin 1 receptor associated kinase 4) This gene encodes a kinase that activates NF-kappaB in both the Toll-like receptor (TLR) and T-cell receptor (TCR) signaling pathways. The protein is essential for most innate immune responses. Mutations in this gene result in IRAK4 deficiency and recurrent invasive pneumococcal disease. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Aug 2011]
TMEM117 (HGNC:25308): (transmembrane protein 117) Involved in intrinsic apoptotic signaling pathway in response to endoplasmic reticulum stress. Located in endoplasmic reticulum and plasma membrane. [provided by Alliance of Genome Resources, Apr 2022]

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.36156058).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_002822.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
TWF1
NM_002822.5
MANE Select
c.970G>Tp.Ala324Ser
missense
Exon 9 of 9NP_002813.3
TWF1
NM_001242397.2
c.991G>Tp.Ala331Ser
missense
Exon 10 of 10NP_001229326.1Q12792-3
TWF1
NR_073472.2
n.1432G>T
non_coding_transcript_exon
Exon 9 of 9

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
TWF1
ENST00000395510.7
TSL:1 MANE Select
c.970G>Tp.Ala324Ser
missense
Exon 9 of 9ENSP00000378886.2Q12792-2
TWF1
ENST00000548315.5
TSL:1
c.991G>Tp.Ala331Ser
missense
Exon 10 of 10ENSP00000449428.1Q12792-3
TWF1
ENST00000552521.5
TSL:1
c.676G>Tp.Ala226Ser
missense
Exon 10 of 10ENSP00000448750.1Q12792-4

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
Cov.:
30
GnomAD4 genome
Cov.:
32

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, single submitter
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.092
BayesDel_addAF
Benign
-0.042
T
BayesDel_noAF
Benign
-0.30
CADD
Uncertain
25
DANN
Uncertain
0.99
DEOGEN2
Benign
0.099
T
Eigen
Uncertain
0.36
Eigen_PC
Uncertain
0.46
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.95
D
M_CAP
Benign
0.033
D
MetaRNN
Benign
0.36
T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
1.6
L
PhyloP100
6.0
PrimateAI
Pathogenic
0.79
T
PROVEAN
Benign
-1.3
N
REVEL
Benign
0.098
Sift
Benign
0.20
T
Sift4G
Benign
0.49
T
Polyphen
0.74
P
Vest4
0.46
MutPred
0.35
Gain of glycosylation at A324 (P = 0.0188)
MVP
0.46
MPC
0.46
ClinPred
0.73
D
GERP RS
5.4
Varity_R
0.16
gMVP
0.40
Mutation Taster
=65/35
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

hg19: chr12-44189471; API