Variant chr7-104168501-T-G details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_002553.4(ORC5):c.849A>C(p.Lys283Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000443 in 1,579,764 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/20 in silico tools predict 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: 0.0000042 ( 0 hom. )

Consequence

ORC5
NM_002553.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.36

Variant links:

Genes affected

ORC5 (HGNC:8491): (origin recognition complex subunit 5) 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. The protein encoded by this gene is a subunit of the ORC complex. Alternatively spliced transcript variants encoding distinct isoforms have been described. [provided by RefSeq, Oct 2010]

ORC5 links:

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.05828178).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
ORC5	NM_002553.4 linkuse as main transcript	c.849A>C	p.Lys283Asn	missense_variant	9/14	ENST00000297431.9
ORC5	NM_181747.4 linkuse as main transcript	c.849A>C	p.Lys283Asn	missense_variant	9/9
ORC5	XM_047420431.1 linkuse as main transcript	c.709A>C	p.Arg237=	synonymous_variant	7/8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ORC5	ENST00000297431.9 linkuse as main transcript	c.849A>C	p.Lys283Asn	missense_variant	9/14	1	NM_002553.4	P1	O43913-1
ORC5	ENST00000447452.6 linkuse as main transcript	c.849A>C	p.Lys283Asn	missense_variant	9/9	1			O43913-2
ORC5	ENST00000422497.5 linkuse as main transcript	c.*782A>C		3_prime_UTR_variant, NMD_transcript_variant	10/15	2

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152132

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

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:

0.000480

GnomAD4 exome

AF:

0.00000420

AC:

AN:

1427632

Hom.:

Cov.:

AF XY:

0.00000423

AC XY:

AN XY:

709742

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000455

Gnomad4 OTH exome

AF:

0.0000170

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152132

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74328

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.000480

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Mar 11, 2022

The c.849A>C (p.K283N) alteration is located in exon 9 (coding exon 9) of the ORC5 gene. This alteration results from a A to C substitution at nucleotide position 849, causing the lysine (K) at amino acid position 283 to be replaced by an asparagine (N). 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

0.11

BayesDel_addAF

Benign

-0.30

BayesDel_noAF

Benign

-0.67

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.035

T;.

Eigen

Benign

-0.51

Eigen_PC

Benign

-0.30

FATHMM_MKL

Uncertain

0.87

LIST_S2

Benign

0.68

T;T

M_CAP

Benign

0.011

MetaRNN

Benign

0.058

T;T

MetaSVM

Benign

-1.1

MutationTaster

Benign

0.95

D;D;D

PrimateAI

Benign

0.45

PROVEAN

Benign

-0.58

N;N

REVEL

Benign

0.018

Sift

Benign

0.34

T;T

Sift4G

Benign

0.50

T;T

Polyphen

0.0090

B;B

Vest4

0.15

MutPred

0.34

Loss of ubiquitination at K283 (P = 0.0014);Loss of ubiquitination at K283 (P = 0.0014);

MVP

0.19

MPC

0.093

ClinPred

0.88

GERP RS

3.3

Varity_R

0.099

gMVP

0.22

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over