Genetic Variant ORC2:p.Lys105Asn (chr2-200949567-C-A) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_006190.5(ORC2):c.315G>T(p.Lys105Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000992 in 1,573,040 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000079 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00010 ( 0 hom. )

Consequence

ORC2
NM_006190.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.258

Publications

0 publications found

Variant links:

Genes affected

ORC2 (HGNC:8488): (origin recognition complex subunit 2) The origin recognition complex (ORC) is a highly conserved six subunits protein complex essential for the initiation of the DNA replication in eukaryotic cells. Studies in yeast demonstrated that ORC binds specifically to origins of replication and serves as a platform for the assembly of additional initiation factors such as Cdc6 and Mcm proteins. The protein encoded by this gene is a subunit of the ORC complex. This protein forms a core complex with ORC3, -4, and -5. It also interacts with CDC45 and MCM10, which are proteins known to be important for the initiation of DNA replication. This protein has been demonstrated to specifically associate with the origin of replication of Epstein-Barr virus in human cells, and is thought to be required for DNA replication from viral origin of replication. Alternatively spliced transcript variants have been found, one of which is a nonsense-mediated mRNA decay candidate. [provided by RefSeq, Oct 2010]

ORC2 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.112568796).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_006190.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ORC2	NM_006190.5	MANE Select	c.315G>T	p.Lys105Asn	missense	Exon 5 of 18	NP_006181.1	Q13416
	ORC2	NR_033915.2		n.545G>T		non_coding_transcript_exon	Exon 5 of 17

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
ORC2	ENST00000234296.7	TSL:1 MANE Select	c.315G>T	p.Lys105Asn	missense	Exon 5 of 18	ENSP00000234296.2	Q13416
ORC2	ENST00000938732.1		c.315G>T	p.Lys105Asn	missense	Exon 5 of 19	ENSP00000608791.1
ORC2	ENST00000879137.1		c.315G>T	p.Lys105Asn	missense	Exon 5 of 19	ENSP00000549196.1

Frequencies

GnomAD3 genomes

AF:

0.0000789

AC:

AN:

152094

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000966

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:

0.000118

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000406

AC:

AN:

246218

AF XY:

0.0000226

show subpopulations

Gnomad AFR exome

AF:

0.000125

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000713

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000101

AC:

144

AN:

1420946

Hom.:

Cov.:

AF XY:

0.0000973

AC XY:

AN XY:

709166

show subpopulations

African (AFR)

AF:

0.0000922

AC:

AN:

32528

American (AMR)

AF:

0.00

AC:

AN:

43840

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25766

East Asian (EAS)

AF:

0.00

AC:

AN:

39104

South Asian (SAS)

AF:

0.00

AC:

AN:

83872

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53326

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5694

European-Non Finnish (NFE)

AF:

0.000131

AC:

141

AN:

1077768

Other (OTH)

AF:

0.00

AC:

AN:

59048

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.467

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome 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

GnomAD4 genome

AF:

0.0000789

AC:

AN:

152094

Hom.:

Cov.:

AF XY:

0.0000942

AC XY:

AN XY:

74284

show subpopulations

African (AFR)

AF:

0.0000966

AC:

AN:

41416

American (AMR)

AF:

0.00

AC:

AN:

15278

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5196

South Asian (SAS)

AF:

0.00

AC:

AN:

4826

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10568

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.000118

AC:

AN:

68024

Other (OTH)

AF:

0.00

AC:

AN:

2088

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.479

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:

0.0000847

Hom.:

Bravo

AF:

0.0000567

ESP6500AA

AF:

0.000227

AC:

ESP6500EA

AF:

0.000117

AC:

ExAC

AF:

0.0000247

AC:

EpiCase

AF:

0.0000550

EpiControl

AF:

0.00

ClinVar

ClinVar submissions as Germline

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

not specified (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.13

BayesDel_addAF

Benign

-0.36

BayesDel_noAF

Benign

-0.52

CADD

Benign

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.076

Eigen

Benign

-0.079

Eigen_PC

Benign

-0.036

FATHMM_MKL

Benign

0.71

LIST_S2

Benign

0.81

M_CAP

Benign

0.024

MetaRNN

Benign

0.11

MetaSVM

Benign

-0.90

MutationAssessor

Uncertain

2.1

PhyloP100

0.26

PrimateAI

Uncertain

0.52

PROVEAN

Benign

-1.4

REVEL

Benign

0.077

Sift

Uncertain

0.023

Sift4G

Benign

0.39

Polyphen

0.91

Vest4

0.26

MutPred

0.23

Gain of ubiquitination at K108 (P = 0.0139)

MVP

0.49

MPC

0.44

ClinPred

0.18

GERP RS

2.8

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.11

gMVP

0.37

Mutation Taster

=79/21

polymorphism

(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