Genetic Variant TRAM1:p.Ala127Thr (chr8-70597942-C-T) – ACMG Classification: Uncertain_significance (1 pts)

Variant summary

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

The NM_014294.6(TRAM1):c.379G>A(p.Ala127Thr) variant causes a missense change. The variant allele was found at a frequency of 0.000000689 in 1,450,468 control chromosomes in the GnomAD database, with no homozygous occurrence. 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)

Exomes 𝑓: 6.9e-7 ( 0 hom. )

Consequence

TRAM1
NM_014294.6 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.99

Publications

0 publications found

Variant links:

Genes affected

TRAM1 (HGNC:20568): (translocation associated membrane protein 1) This gene encodes a multi-pass membrane protein that is part of the mammalian endoplasmic reticulum. The encoded protein influences glycosylation and facilitates the translocation of secretory proteins across the endoplasmic reticulum membrane by regulating which domains of the nascent polypeptide chain are visible to the cytosol during a translocational pause. [provided by RefSeq, Oct 2009]

TRAM1 links:

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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=0.4188797).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TRAM1	NM_014294.6 link	c.379G>A	p.Ala127Thr	missense_variant	Exon 4 of 11	ENST00000262213.7	NP_055109.1	Q15629-1Q6FHL3
TRAM1	NM_001317804.2 link	c.286G>A	p.Ala96Thr	missense_variant	Exon 5 of 12		NP_001304733.1	Q15629-2
TRAM1	NM_001317805.2 link	c.121G>A	p.Ala41Thr	missense_variant	Exon 4 of 11		NP_001304734.1	Q15629G3XAN4
TRAM1	XM_047421636.1 link	c.121G>A	p.Ala41Thr	missense_variant	Exon 5 of 12		XP_047277592.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TRAM1	ENST00000262213.7 link	c.379G>A	p.Ala127Thr	missense_variant	Exon 4 of 11	1	NM_014294.6	ENSP00000262213.2		Q15629-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.89e-7

AC:

AN:

1450468

Hom.:

Cov.:

AF XY:

0.00000139

AC XY:

AN XY:

721462

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33306

American (AMR)

AF:

0.00

AC:

AN:

44458

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25848

East Asian (EAS)

AF:

0.00

AC:

AN:

39332

South Asian (SAS)

AF:

0.00

AC:

AN:

84120

European-Finnish (FIN)

AF:

0.00

AC:

AN:

52688

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5724

European-Non Finnish (NFE)

AF:

9.05e-7

AC:

AN:

1105204

Other (OTH)

AF:

0.00

AC:

AN:

59788

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.525

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Oct 12, 2024

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.379G>A (p.A127T) alteration is located in exon 4 (coding exon 4) of the TRAM1 gene. This alteration results from a G to A substitution at nucleotide position 379, causing the alanine (A) at amino acid position 127 to be replaced by a threonine (T). 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

0.086

BayesDel_addAF

Pathogenic

0.18

BayesDel_noAF

Uncertain

0.030

CADD

Uncertain

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.27

.;T;.

Eigen

Benign

0.18

Eigen_PC

Uncertain

0.37

FATHMM_MKL

Pathogenic

0.97

LIST_S2

Uncertain

0.90

D;D;D

M_CAP

Benign

0.039

MetaRNN

Benign

0.42

T;T;T

MetaSVM

Benign

-0.29

MutationAssessor

Benign

1.9

.;L;.

PhyloP100

6.0

PrimateAI

Uncertain

0.73

PROVEAN

Benign

-0.71

N;N;N

REVEL

Uncertain

0.33

Sift

Benign

0.065

T;T;T

Sift4G

Benign

0.095

T;T;.

Polyphen

0.18

.;B;.

Vest4

0.64

MutPred

0.39

.;Loss of stability (P = 0.1706);.;

MVP

0.72

MPC

0.43

ClinPred

0.93

GERP RS

6.0

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.18

gMVP

0.46

Mutation Taster

=31/69

disease causing

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.050

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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chr8-70597942-C-T

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over