1-222628118-G-A

Variant summary

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

The NM_198551.4(MIA3):​c.898G>A​(p.Glu300Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000155 in 1,613,956 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000016 ( 0 hom. )

Consequence

MIA3
NM_198551.4 missense

Scores

2
7
9

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.61
Variant links:
Genes affected
MIA3 (HGNC:24008): (MIA SH3 domain ER export factor 3) Enables cargo receptor activity. Involved in several processes, including COPII-coated vesicle cargo loading; cell migration involved in sprouting angiogenesis; and regulation of leukocyte migration. Located in endoplasmic reticulum exit site and endoplasmic reticulum membrane. Is integral component of membrane. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

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
MIA3NM_198551.4 linkuse as main transcriptc.898G>A p.Glu300Lys missense_variant 4/28 ENST00000344922.10 NP_940953.2 Q5JRA6-1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
MIA3ENST00000344922.10 linkuse as main transcriptc.898G>A p.Glu300Lys missense_variant 4/285 NM_198551.4 ENSP00000340900.5 Q5JRA6-1
MIA3ENST00000470521.1 linkuse as main transcriptn.910G>A non_coding_transcript_exon_variant 4/75

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152186
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:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.000478
GnomAD3 exomes
AF:
0.00000806
AC:
2
AN:
248240
Hom.:
0
AF XY:
0.00000742
AC XY:
1
AN XY:
134794
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000290
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:
0.000166
GnomAD4 exome
AF:
0.0000157
AC:
23
AN:
1461652
Hom.:
0
Cov.:
33
AF XY:
0.0000179
AC XY:
13
AN XY:
727116
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000224
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:
0.0000180
Gnomad4 OTH exome
AF:
0.0000331
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152304
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74472
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:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.000473
Alfa
AF:
0.0000279
Hom.:
0
Bravo
AF:
0.0000151
TwinsUK
AF:
0.00
AC:
0
ALSPAC
AF:
0.000259
AC:
1
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

ClinVar

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

Submissions by phenotype

Inborn genetic diseases Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsNov 07, 2024The c.898G>A (p.E300K) alteration is located in exon 4 (coding exon 4) of the MIA3 gene. This alteration results from a G to A substitution at nucleotide position 898, causing the glutamic acid (E) at amino acid position 300 to be replaced by a lysine (K). 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
0.20
BayesDel_addAF
Benign
-0.12
T
BayesDel_noAF
Benign
-0.33
CADD
Uncertain
25
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.094
T;.
Eigen
Uncertain
0.37
Eigen_PC
Uncertain
0.30
FATHMM_MKL
Uncertain
0.94
D
LIST_S2
Uncertain
0.91
D;D
M_CAP
Benign
0.052
D
MetaRNN
Uncertain
0.49
T;T
MetaSVM
Benign
-0.81
T
PrimateAI
Uncertain
0.62
T
PROVEAN
Uncertain
-2.5
D;D
REVEL
Benign
0.22
Sift
Pathogenic
0.0
D;D
Sift4G
Benign
0.064
T;D
Polyphen
1.0
D;.
Vest4
0.59
MVP
0.47
MPC
0.37
ClinPred
0.60
D
GERP RS
4.3
Varity_R
0.31
gMVP
0.060

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: rs200376659; hg19: chr1-222801460; API