dbSNP rs6045440: SEC23B:p.Pro25His (chr20-18510909-C-A) – ACMG Classification: Benign (-11 pts)

Variant summary

Our verdict is Benign. The variant received -11 ACMG points: 1P and 12B. PP3BP4_StrongBS1BS2

The NM_006363.6(SEC23B):c.74C>A(p.Pro25His) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000249 in 1,614,138 control chromosomes in the GnomAD database, including 7 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00064 ( 1 hom., cov: 33)

Exomes 𝑓: 0.00021 ( 6 hom. )

Consequence

SEC23B
NM_006363.6 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:7B:1

Conservation

PhyloP100: 7.91

Publications

11 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

SEC23B links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -11 ACMG points.

PP3

Multiple lines of computational evidence support a deleterious effect 11: AlphaMissense, BayesDel_addAF, BayesDel_noAF, Cadd, Eigen, MutationAssessor, phyloP100way_vertebrate, PrimateAI, PROVEAN, REVEL, REVEL [when max_spliceai, FATHMM_MKL, MetaRNN, MutationTaster was below the threshold]

BP4

Computational evidence support a benign effect (MetaRNN=0.03779906).

BS1

Variant frequency is greater than expected in population eas. GnomAd4 allele frequency = 0.000644 (98/152258) while in subpopulation EAS AF = 0.00752 (39/5186). AF 95% confidence interval is 0.00565. There are 1 homozygotes in GnomAd4. There are 57 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.

BS2

High Homozygotes in GnomAdExome4 at 6 AD,AR 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

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
SEC23B	NM_006363.6	MANE Select	c.74C>A	p.Pro25His	missense	Exon 2 of 20	NP_006354.2
SEC23B	NM_001172745.3		c.74C>A	p.Pro25His	missense	Exon 2 of 20	NP_001166216.1	Q15437
SEC23B	NM_032985.6		c.74C>A	p.Pro25His	missense	Exon 2 of 20	NP_116780.1	Q15437

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
SEC23B	ENST00000650089.1	MANE Select	c.74C>A	p.Pro25His	missense	Exon 2 of 20	ENSP00000497473.1	Q15437
SEC23B	ENST00000336714.8	TSL:1	c.74C>A	p.Pro25His	missense	Exon 2 of 20	ENSP00000338844.3	Q15437
SEC23B	ENST00000377465.6	TSL:1	c.74C>A	p.Pro25His	missense	Exon 2 of 20	ENSP00000366685.1	Q15437

Frequencies

GnomAD3 genomes

AF:

0.000631

AC:

AN:

152140

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00111

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00712

Gnomad SAS

AF:

0.00166

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00143

GnomAD2 exomes

AF:

0.000541

AC:

136

AN:

251480

AF XY:

0.000544

show subpopulations

Gnomad AFR exome

AF:

0.000800

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00500

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000879

Gnomad OTH exome

AF:

0.000977

GnomAD4 exome

AF:

0.000208

AC:

304

AN:

1461880

Hom.:

Cov.:

AF XY:

0.000224

AC XY:

163

AN XY:

727244

show subpopulations

African (AFR)

AF:

0.000508

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00254

AC:

101

AN:

39700

South Asian (SAS)

AF:

0.000893

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53420

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00000629

AC:

AN:

1111998

Other (OTH)

AF:

0.00169

AC:

102

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.480

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

<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:

0.000644

AC:

AN:

152258

Hom.:

Cov.:

AF XY:

0.000766

AC XY:

AN XY:

74452

show subpopulations

African (AFR)

AF:

0.00111

AC:

AN:

41548

American (AMR)

AF:

0.0000654

AC:

AN:

15300

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00752

AC:

AN:

5186

South Asian (SAS)

AF:

0.00166

AC:

AN:

4826

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10606

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

68000

Other (OTH)

AF:

0.00142

AC:

AN:

2116

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.526

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<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:

0.00511

Hom.:

733

Bravo

AF:

0.000484

ESP6500AA

AF:

0.00113

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.000576

AC:

Asia WGS

AF:

0.0140

AC:

AN:

3478

ClinVar

ClinVar submissions

Significance:Conflicting classifications of pathogenicity

Revision:criteria provided, conflicting classifications

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (3)

Congenital dyserythropoietic anemia, type II (2)

Congenital dyserythropoietic anemia, type II;C4225179:Cowden syndrome 7 (1)

Cowden syndrome 7 (1)

not specified (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.99

BayesDel_addAF

Pathogenic

0.22

BayesDel_noAF

Pathogenic

0.54

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.42

Eigen

Pathogenic

0.95

Eigen_PC

Pathogenic

0.88

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Pathogenic

0.98

MetaRNN

Benign

0.038

MetaSVM

Pathogenic

1.1

MutationAssessor

Pathogenic

4.1

PhyloP100

7.9

PrimateAI

Pathogenic

0.79

PROVEAN

Pathogenic

-7.9

REVEL

Pathogenic

0.97

Sift

Pathogenic

0.0

Sift4G

Pathogenic

0.0

Polyphen

1.0

Vest4

0.97

MVP

0.99

MPC

0.74

ClinPred

0.25

GERP RS

5.1

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.87

gMVP

0.92

Mutation Taster

=2/98

disease causing

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over