6-155256903-G-A
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Variant summary
Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4
The NM_012454.4(TIAM2):c.4888G>A(p.Gly1630Arg) 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: 31)
Consequence
TIAM2
NM_012454.4 missense
NM_012454.4 missense
Scores
4
7
8
Clinical Significance
Conservation
PhyloP100: 6.00
Genes affected
TIAM2 (HGNC:11806): (TIAM Rac1 associated GEF 2) This gene encodes a guanine nucleotide exchange factor. A highly similar mouse protein specifically activates ras-related C3 botulinum substrate 1, converting this Rho-like guanosine triphosphatase (GTPase) from a guanosine diphosphate-bound inactive state to a guanosine triphosphate-bound active state. The encoded protein may play a role in neural cell development. Alternatively spliced transcript variants encoding different isoforms have been described. [provided by RefSeq, Jul 2008]
TFB1M (HGNC:17037): (transcription factor B1, mitochondrial) The protein encoded by this gene is a dimethyltransferase that methylates the conserved stem loop of mitochondrial 12S rRNA. The encoded protein also is part of the basal mitochondrial transcription complex and is necessary for mitochondrial gene expression. The methylation and transcriptional activities of this protein are independent of one another. Variations in this gene may influence the severity of aminoglycoside-induced deafness (AID).[provided by RefSeq, Aug 2010]
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ACMG classification
Classification made for transcript
Verdict is Uncertain_significance. Variant got 1 ACMG points.
PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.29867637).
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
TIAM2 | NM_012454.4 | c.4888G>A | p.Gly1630Arg | missense_variant | 27/27 | ENST00000682666.1 | NP_036586.3 | |
TFB1M | NM_016020.4 | c.*933C>T | 3_prime_UTR_variant | 7/7 | ENST00000367166.5 | NP_057104.2 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
TIAM2 | ENST00000682666.1 | c.4888G>A | p.Gly1630Arg | missense_variant | 27/27 | NM_012454.4 | ENSP00000507157 | A2 | ||
TFB1M | ENST00000367166.5 | c.*933C>T | 3_prime_UTR_variant | 7/7 | 1 | NM_016020.4 | ENSP00000356134 | P1 |
Frequencies
GnomAD3 genomes Cov.: 31
GnomAD3 genomes
Cov.:
31
GnomAD4 exome Cov.: 37
GnomAD4 exome
Cov.:
37
GnomAD4 genome Cov.: 31
GnomAD4 genome
Cov.:
31
Alfa
AF:
Hom.:
Bravo
AF:
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 submitter | clinical testing | Ambry Genetics | Nov 17, 2023 | The c.4888G>A (p.G1630R) alteration is located in exon 26 (coding exon 24) of the TIAM2 gene. This alteration results from a G to A substitution at nucleotide position 4888, causing the glycine (G) at amino acid position 1630 to be replaced by an arginine (R). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
BayesDel_addAF
Uncertain
T
BayesDel_noAF
Benign
CADD
Uncertain
DANN
Pathogenic
DEOGEN2
Benign
T;.;.;.;T;.
Eigen
Pathogenic
Eigen_PC
Pathogenic
FATHMM_MKL
Pathogenic
D
LIST_S2
Uncertain
D;D;D;D;D;D
M_CAP
Benign
T
MetaRNN
Benign
T;T;T;T;T;T
MetaSVM
Benign
T
MutationAssessor
Uncertain
M;.;.;.;.;.
MutationTaster
Benign
D;D;D;D;D;D;D;D;D
PrimateAI
Uncertain
T
PROVEAN
Benign
N;N;N;N;N;N
REVEL
Benign
Sift
Uncertain
D;D;D;D;D;D
Sift4G
Uncertain
D;D;D;D;D;D
Polyphen
D;D;D;.;P;.
Vest4
MutPred
Loss of sheet (P = 0.0181);.;.;.;.;.;
MVP
MPC
ClinPred
D
GERP RS
Varity_R
gMVP
Splicing
Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at