X-106033545-C-A

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_000354.6(SERPINA7):​c.1203G>T​(p.Arg401Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000182 in 1,097,229 control chromosomes in the GnomAD database, with no homozygous occurrence. There are no hemizygote samples in GnomAD. 12/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 23)
Exomes 𝑓: 0.0000018 ( 0 hom. 0 hem. )

Consequence

SERPINA7
NM_000354.6 missense

Scores

1
2
14

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.434
Variant links:
Genes affected
SERPINA7 (HGNC:11583): (serpin family A member 7) There are three proteins including thyroxine-binding globulin (TBG), transthyretin and albumin responsible for carrying the thyroid hormones thyroxine (T4) and 3,5,3'-triiodothyronine (T3) in the bloodstream. This gene encodes the major thyroid hormone transport protein, TBG, in serum. It belongs to the serpin family in genomics, but the protein has no inhibitory function like many other members of the serpin family. Mutations in this gene result in TGB deficiency, which has been classified as partial deficiency, complete deficiency, and excess, based on the level of serum TBG. Alternatively spliced transcript variants encoding different isoforms have been found, but the full-length nature of these variants has not been determined.[provided by RefSeq, Jun 2012]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SERPINA7NM_000354.6 linkuse as main transcriptc.1203G>T p.Arg401Ser missense_variant 5/5 ENST00000372563.2 NP_000345.2
SERPINA7XM_006724683.3 linkuse as main transcriptc.1233G>T p.Arg411Ser missense_variant 5/5 XP_006724746.1
SERPINA7XM_005262180.5 linkuse as main transcriptc.*148G>T 3_prime_UTR_variant 5/5 XP_005262237.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SERPINA7ENST00000372563.2 linkuse as main transcriptc.1203G>T p.Arg401Ser missense_variant 5/55 NM_000354.6 ENSP00000361644 P1
SERPINA7ENST00000327674.8 linkuse as main transcriptc.1203G>T p.Arg401Ser missense_variant 4/41 ENSP00000329374 P1

Frequencies

GnomAD3 genomes
Cov.:
23
GnomAD3 exomes
AF:
0.0000109
AC:
2
AN:
182824
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
67540
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000730
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:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000182
AC:
2
AN:
1097229
Hom.:
0
Cov.:
30
AF XY:
0.00
AC XY:
0
AN XY:
362771
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000568
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:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
23

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingGeneDxSep 02, 2022In silico analysis supports that this missense variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.30
BayesDel_addAF
Benign
-0.19
T
BayesDel_noAF
Benign
-0.33
CADD
Benign
15
DANN
Benign
0.96
DEOGEN2
Benign
0.047
T;T
FATHMM_MKL
Benign
0.23
N
LIST_S2
Benign
0.66
.;T
M_CAP
Pathogenic
0.73
D
MetaRNN
Uncertain
0.50
T;T
MetaSVM
Benign
-0.39
T
MutationAssessor
Benign
1.5
L;L
MutationTaster
Benign
1.0
N;N
PrimateAI
Benign
0.26
T
PROVEAN
Benign
-1.3
N;N
REVEL
Uncertain
0.42
Sift
Benign
0.25
T;T
Sift4G
Benign
0.52
T;T
Polyphen
0.78
P;P
Vest4
0.31
MutPred
0.44
Loss of MoRF binding (P = 0.0602);Loss of MoRF binding (P = 0.0602);
MVP
0.78
MPC
0.16
ClinPred
0.43
T
GERP RS
-0.46
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.65
gMVP
0.34

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: rs1197067490; hg19: chrX-105277536; API