rs371786580

Variant summary

Our verdict is Benign. The variant received -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_006363.6(SEC23B):​c.1665+6T>C variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000632 in 1,614,028 control chromosomes in the GnomAD database, including 3 homozygotes. In-silico tool predicts a benign outcome for this variant. 2/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00043 ( 1 hom., cov: 32)
Exomes 𝑓: 0.00065 ( 2 hom. )

Consequence

SEC23B
NM_006363.6 splice_region, intron

Scores

2
Splicing: ADA: 0.002276
2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:4B:2

Conservation

PhyloP100: 0.0700

Publications

0 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: Benign. The variant received -8 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.69).
BS2
High Homozygotes in GnomAdExome4 at 2 AR,AD gene

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.1665+6T>C
splice_region intron
N/ANP_006354.2
SEC23B
NM_001172745.3
c.1665+6T>C
splice_region intron
N/ANP_001166216.1Q15437
SEC23B
NM_032985.6
c.1665+6T>C
splice_region intron
N/ANP_116780.1Q15437

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
SEC23B
ENST00000650089.1
MANE Select
c.1665+6T>C
splice_region intron
N/AENSP00000497473.1Q15437
SEC23B
ENST00000336714.8
TSL:1
c.1665+6T>C
splice_region intron
N/AENSP00000338844.3Q15437
SEC23B
ENST00000377465.6
TSL:1
c.1665+6T>C
splice_region intron
N/AENSP00000366685.1Q15437

Frequencies

GnomAD3 genomes
AF:
0.000434
AC:
66
AN:
152150
Hom.:
1
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000169
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000262
Gnomad ASJ
AF:
0.000288
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.0000942
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000764
Gnomad OTH
AF:
0.000478
GnomAD2 exomes
AF:
0.000450
AC:
113
AN:
251368
AF XY:
0.000427
show subpopulations
Gnomad AFR exome
AF:
0.000123
Gnomad AMR exome
AF:
0.0000289
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.000139
Gnomad NFE exome
AF:
0.000871
Gnomad OTH exome
AF:
0.000489
GnomAD4 exome
AF:
0.000653
AC:
954
AN:
1461878
Hom.:
2
Cov.:
32
AF XY:
0.000645
AC XY:
469
AN XY:
727240
show subpopulations
African (AFR)
AF:
0.0000597
AC:
2
AN:
33480
American (AMR)
AF:
0.0000894
AC:
4
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.0000383
AC:
1
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.0000696
AC:
6
AN:
86256
European-Finnish (FIN)
AF:
0.000206
AC:
11
AN:
53420
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5758
European-Non Finnish (NFE)
AF:
0.000819
AC:
911
AN:
1112010
Other (OTH)
AF:
0.000315
AC:
19
AN:
60394
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
56
112
168
224
280
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
34
68
102
136
170
<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:
0.000434
AC:
66
AN:
152150
Hom.:
1
Cov.:
32
AF XY:
0.000350
AC XY:
26
AN XY:
74326
show subpopulations
African (AFR)
AF:
0.000169
AC:
7
AN:
41424
American (AMR)
AF:
0.000262
AC:
4
AN:
15258
Ashkenazi Jewish (ASJ)
AF:
0.000288
AC:
1
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5198
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4834
European-Finnish (FIN)
AF:
0.0000942
AC:
1
AN:
10620
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.000764
AC:
52
AN:
68026
Other (OTH)
AF:
0.000478
AC:
1
AN:
2094
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.470
Heterozygous variant carriers
0
4
7
11
14
18
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
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:
0.000523
Hom.:
0
Bravo
AF:
0.000412
EpiCase
AF:
0.000436
EpiControl
AF:
0.00130

ClinVar

ClinVar submissions
Significance:Conflicting classifications of pathogenicity
Revision:criteria provided, conflicting classifications
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
2
1
not provided (3)
-
1
-
Congenital dyserythropoietic anemia, type II (1)
-
1
-
Congenital dyserythropoietic anemia, type II;C4225179:Cowden syndrome 7 (1)
-
-
1
SEC23B-related disorder (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.69
CADD
Benign
0.099
DANN
Benign
0.64
PhyloP100
0.070
Mutation Taster
=91/9
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.0023
dbscSNV1_RF
Benign
0.16
SpliceAI score (max)
0.36
Details are displayed if max score is > 0.2
DS_DL_spliceai
0.36
Position offset: -6

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

Publications

Other links and lift over

dbSNP: rs371786580; hg19: chr20-18523822; API