NM_181741.4:c.1141C>A

Variant names:

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2BP4

The NM_181741.4(ORC4):c.1141C>A(p.Gln381Lys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000124 in 1,612,404 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 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

ORC4
NM_181741.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.38

Publications

0 publications found

Variant links:

Genes affected

ORC4 (HGNC:8490): (origin recognition complex subunit 4) The origin recognition complex (ORC) is a highly conserved six subunit 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. This gene encodes a subunit of the ORC complex. Several alternatively spliced transcript variants, some of which encode the same protein, have been reported for this gene. [provided by RefSeq, Oct 2010]

ORC4 Gene-Disease associations (from GenCC):

Meier-Gorlin syndrome 2
Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), ClinGen, G2P
Meier-Gorlin syndrome
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

ORC4 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.31334937).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ORC4	NM_181741.4 link	c.1141C>A	p.Gln381Lys	missense_variant	Exon 14 of 14	ENST00000392857.10	NP_859525.1	O43929-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ORC4	ENST00000392857.10 link	c.1141C>A	p.Gln381Lys	missense_variant	Exon 14 of 14	1	NM_181741.4	ENSP00000376597.5		O43929-1

Frequencies

GnomAD3 genomes

AF:

0.00000658

AC:

AN:

152048

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000242

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.00000399

AC:

AN:

250602

AF XY:

0.00000738

show subpopulations

Gnomad AFR exome

AF:

0.0000617

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:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

6.85e-7

AC:

AN:

1460356

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

726524

show subpopulations

African (AFR)

AF:

0.0000299

AC:

AN:

33440

American (AMR)

AF:

0.00

AC:

AN:

44712

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26116

East Asian (EAS)

AF:

0.00

AC:

AN:

39666

South Asian (SAS)

AF:

0.00

AC:

AN:

86204

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53404

Middle Eastern (MID)

AF:

0.00

AC:

AN:

4960

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111566

Other (OTH)

AF:

0.00

AC:

AN:

60288

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.00000658

AC:

AN:

152048

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74290

show subpopulations

African (AFR)

AF:

0.0000242

AC:

AN:

41388

American (AMR)

AF:

0.00

AC:

AN:

15250

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:

10606

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

67996

Other (OTH)

AF:

0.00

AC:

AN:

2088

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.525

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.0000113

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Inborn genetic diseases

Uncertain:1

Nov 07, 2024

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.1141C>A (p.Q381K) alteration is located in exon 14 (coding exon 13) of the ORC4 gene. This alteration results from a C to A substitution at nucleotide position 1141, causing the glutamine (Q) at amino acid position 381 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

0.14

BayesDel_addAF

Benign

-0.046

BayesDel_noAF

Benign

-0.12

CADD

Benign

(source)

DANN

Benign

0.91

DEOGEN2

Benign

0.0085

.;T;.;T;T

Eigen

Uncertain

0.45

Eigen_PC

Uncertain

0.54

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Uncertain

0.93

D;D;D;.;.

M_CAP

Benign

0.032

MetaRNN

Benign

0.31

T;T;T;T;T

MetaSVM

Benign

-0.43

MutationAssessor

Uncertain

2.1

.;M;.;M;M

PhyloP100

9.4

PrimateAI

Uncertain

0.57

PROVEAN

Benign

-0.69

N;N;N;N;N

REVEL

Uncertain

0.32

Sift

Benign

0.74

T;T;T;T;T

Sift4G

Benign

0.89

T;T;T;T;T

Polyphen

0.70

.;P;.;P;P

Vest4

0.48

MutPred

0.41

.;Gain of ubiquitination at Q381 (P = 0.0289);.;Gain of ubiquitination at Q381 (P = 0.0289);Gain of ubiquitination at Q381 (P = 0.0289);

MVP

0.78

MPC

0.14

ClinPred

0.35

GERP RS

5.6

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.33

gMVP

0.49

Mutation Taster

=34/66

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over