11-59853262-G-T

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 0P and 10B. BP4_StrongBP6_ModerateBS2

The NM_001062.4(TCN1):​c.1181C>A​(p.Ala394Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000283 in 1,614,012 control chromosomes in the GnomAD database, including 5 homozygotes. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.00019 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00029 ( 5 hom. )

Consequence

TCN1
NM_001062.4 missense

Scores

5
14

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 1.65
Variant links:
Genes affected
TCN1 (HGNC:11652): (transcobalamin 1) This gene encodes a member of the vitamin B12-binding protein family. This family of proteins, alternatively referred to as R binders, is expressed in various tissues and secretions. This protein is a major constituent of secondary granules in neutrophils and facilitates the transport of cobalamin into cells. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -10 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.008952349).
BP6
Variant 11-59853262-G-T is Benign according to our data. Variant chr11-59853262-G-T is described in ClinVar as [Likely_benign]. Clinvar id is 1587586.Status of the report is criteria_provided_single_submitter, 1 stars.
BS2
High Homozygotes in GnomAdExome4 at 5 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
TCN1NM_001062.4 linkuse as main transcriptc.1181C>A p.Ala394Asp missense_variant 8/9 ENST00000257264.4 NP_001053.2 P20061

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
TCN1ENST00000257264.4 linkuse as main transcriptc.1181C>A p.Ala394Asp missense_variant 8/91 NM_001062.4 ENSP00000257264.3 P20061
TCN1ENST00000529251.1 linkuse as main transcriptn.180C>A non_coding_transcript_exon_variant 2/33

Frequencies

GnomAD3 genomes
AF:
0.000191
AC:
29
AN:
152020
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00602
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000565
AC:
142
AN:
251172
Hom.:
1
AF XY:
0.000744
AC XY:
101
AN XY:
135728
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00457
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.000326
GnomAD4 exome
AF:
0.000293
AC:
428
AN:
1461874
Hom.:
5
Cov.:
31
AF XY:
0.000393
AC XY:
286
AN XY:
727240
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00464
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.000431
GnomAD4 genome
AF:
0.000191
AC:
29
AN:
152138
Hom.:
0
Cov.:
32
AF XY:
0.000282
AC XY:
21
AN XY:
74376
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00602
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000998
Hom.:
0
Bravo
AF:
0.0000264
TwinsUK
AF:
0.00
AC:
0
ALSPAC
AF:
0.000259
AC:
1
ExAC
AF:
0.000651
AC:
79
Asia WGS
AF:
0.00231
AC:
8
AN:
3476

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Transcobalamin I deficiency Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJul 17, 2021- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.47
BayesDel_addAF
Benign
-0.33
T
BayesDel_noAF
Benign
-0.25
CADD
Benign
16
DANN
Benign
0.97
DEOGEN2
Benign
0.16
T
Eigen
Benign
-0.39
Eigen_PC
Benign
-0.51
FATHMM_MKL
Benign
0.13
N
LIST_S2
Benign
0.57
T
M_CAP
Benign
0.011
T
MetaRNN
Benign
0.0090
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Uncertain
2.8
M
PrimateAI
Benign
0.43
T
PROVEAN
Uncertain
-3.3
D
REVEL
Benign
0.24
Sift
Uncertain
0.018
D
Sift4G
Uncertain
0.0050
D
Polyphen
0.47
P
Vest4
0.55
MutPred
0.61
Loss of sheet (P = 0.0228);
MVP
0.44
MPC
0.049
ClinPred
0.12
T
GERP RS
3.3
Varity_R
0.31
gMVP
0.53

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.030
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: rs538179287; hg19: chr11-59620735; API