rs121918221

Variant summary

Our verdict is Pathogenic. The variant received 10 ACMG points: 10P and 0B. PP3_ModeratePP5_Very_Strong

The NM_006363.6(SEC23B):​c.325G>A​(p.Glu109Lys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000265 in 1,612,170 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (★★).

Frequency

Genomes: 𝑓 0.00024 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00027 ( 0 hom. )

Consequence

SEC23B
NM_006363.6 missense

Scores

11
6
1

Clinical Significance

Pathogenic criteria provided, multiple submitters, no conflicts P:20

Conservation

PhyloP100: 9.83

Publications

34 publications found
Variant links:
Genes affected
SEC23B (HGNC:10702): (SEC23 homolog B, COPII coat complex component) The protein encoded by this gene is a member of the SEC23 subfamily of the SEC23/SEC24 family, which is involved in vesicle trafficking. The encoded protein has similarity to yeast Sec23p component of COPII. COPII is the coat protein complex responsible for vesicle budding from the ER. The function of this gene product has been implicated in cargo selection and concentration. Multiple alternatively spliced transcript variants have been identified in this gene. [provided by RefSeq, Feb 2010]
SEC23B Gene-Disease associations (from GenCC):
  • congenital dyserythropoietic anemia type 2
    Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), ClinGen, Orphanet, G2P, PanelApp Australia, Laboratory for Molecular Medicine
  • Cowden disease
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • Cowden syndrome 7
    Inheritance: AD Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae)
  • congenital dyserythropoietic anemia
    Inheritance: AR Classification: LIMITED Submitted by: Genomics England PanelApp

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Pathogenic. The variant received 10 ACMG points.

PP3
MetaRNN computational evidence supports a deleterious effect, 0.841
PP5
Variant 20-18515695-G-A is Pathogenic according to our data. Variant chr20-18515695-G-A is described in ClinVar as Pathogenic. ClinVar VariationId is 1222.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_006363.6. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
SEC23B
NM_006363.6
MANE Select
c.325G>Ap.Glu109Lys
missense
Exon 4 of 20NP_006354.2
SEC23B
NM_001172745.3
c.325G>Ap.Glu109Lys
missense
Exon 4 of 20NP_001166216.1Q15437
SEC23B
NM_032985.6
c.325G>Ap.Glu109Lys
missense
Exon 4 of 20NP_116780.1Q15437

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
SEC23B
ENST00000650089.1
MANE Select
c.325G>Ap.Glu109Lys
missense
Exon 4 of 20ENSP00000497473.1Q15437
SEC23B
ENST00000336714.8
TSL:1
c.325G>Ap.Glu109Lys
missense
Exon 4 of 20ENSP00000338844.3Q15437
SEC23B
ENST00000377465.6
TSL:1
c.325G>Ap.Glu109Lys
missense
Exon 4 of 20ENSP00000366685.1Q15437

Frequencies

GnomAD3 genomes
AF:
0.000243
AC:
37
AN:
152134
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000169
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:
0.000412
Gnomad OTH
AF:
0.000958
GnomAD2 exomes
AF:
0.000227
AC:
57
AN:
251456
AF XY:
0.000221
show subpopulations
Gnomad AFR exome
AF:
0.000308
Gnomad AMR exome
AF:
0.0000289
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000544
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000431
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.000268
AC:
391
AN:
1459918
Hom.:
0
Cov.:
28
AF XY:
0.000281
AC XY:
204
AN XY:
726452
show subpopulations
African (AFR)
AF:
0.0000598
AC:
2
AN:
33446
American (AMR)
AF:
0.0000894
AC:
4
AN:
44722
Ashkenazi Jewish (ASJ)
AF:
0.0000383
AC:
1
AN:
26132
East Asian (EAS)
AF:
0.0000252
AC:
1
AN:
39680
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86210
European-Finnish (FIN)
AF:
0.0000187
AC:
1
AN:
53416
Middle Eastern (MID)
AF:
0.000347
AC:
2
AN:
5764
European-Non Finnish (NFE)
AF:
0.000332
AC:
369
AN:
1110212
Other (OTH)
AF:
0.000182
AC:
11
AN:
60336
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.453
Heterozygous variant carriers
0
18
36
54
72
90
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
20
40
60
80
100
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.000243
AC:
37
AN:
152252
Hom.:
0
Cov.:
32
AF XY:
0.000309
AC XY:
23
AN XY:
74448
show subpopulations
African (AFR)
AF:
0.000168
AC:
7
AN:
41548
American (AMR)
AF:
0.00
AC:
0
AN:
15294
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5188
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4826
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10602
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.000412
AC:
28
AN:
68008
Other (OTH)
AF:
0.000948
AC:
2
AN:
2110
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.517
Heterozygous variant carriers
0
3
6
8
11
14
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.000401
Hom.:
0
Bravo
AF:
0.000257
TwinsUK
AF:
0.00
AC:
0
ALSPAC
AF:
0.000259
AC:
1
ESP6500AA
AF:
0.000227
AC:
1
ESP6500EA
AF:
0.000233
AC:
2
ExAC
AF:
0.000272
AC:
33
EpiCase
AF:
0.000709
EpiControl
AF:
0.000652

ClinVar

ClinVar submissions
Significance:Pathogenic
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
9
-
-
Congenital dyserythropoietic anemia, type II (9)
7
-
-
not provided (7)
2
-
-
Congenital dyserythropoietic anemia, type II;C4225179:Cowden syndrome 7 (2)
1
-
-
SEC23B-related disorder (1)
1
-
-
See cases (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.99
BayesDel_addAF
Pathogenic
0.27
D
BayesDel_noAF
Pathogenic
0.47
CADD
Pathogenic
33
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.42
T
Eigen
Pathogenic
1.1
Eigen_PC
Pathogenic
0.96
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.95
D
M_CAP
Uncertain
0.15
D
MetaRNN
Pathogenic
0.84
D
MetaSVM
Pathogenic
1.0
D
MutationAssessor
Pathogenic
4.0
H
PhyloP100
9.8
PrimateAI
Uncertain
0.70
T
PROVEAN
Uncertain
-3.6
D
REVEL
Pathogenic
0.95
Sift
Uncertain
0.0010
D
Sift4G
Uncertain
0.0030
D
Polyphen
1.0
D
Vest4
0.98
MVP
0.98
MPC
0.73
ClinPred
0.93
D
GERP RS
5.0
Varity_R
0.81
gMVP
0.90
Mutation Taster
=43/57
disease causing (ClinVar)

Splicing

Name
Calibrated prediction
Score
Prediction
Splicevardb
2.0
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

Other links and lift over

dbSNP: rs121918221; hg19: chr20-18496339; COSMIC: COSV52721522; COSMIC: COSV52721522; API