ORC1 - origin recognition complex subunit 1 Gene

Homo sapiens

Also known as ORC1L; PARC1; HSORC1

Gene ID: 4998 | Gene type: protein coding

About ORC1

Cytogenetic location: 1p32.3 Genomic coordinates (GRCh38): 1:52,372,829-52,409,503 (from NCBI)

This gene has 2 transcripts (splice variants), 198 orthologues, 1 paralogue and is associated with 3 phenotypes. Biased expression in bone marrow (RPKM 7.3), lymph node (RPKM 2.5) and 10 other tissues.

Summary

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 the largest subunit of the ORC complex. While other ORC subunits are stable throughout the cell cycle, the levels of this protein vary during the cell cycle, which has been shown to be controlled by ubiquitin-mediated proteolysis after initiation of DNA replication. This protein is found to be selectively phosphorylated during mitosis. It is also reported to interact with MYST Histone Acetyltransferase 2 (MyST2/HBO1), a protein involved in control of transcription silencing. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jun 2010]

ORC1 Products(3)

mRNA	Protein	Name
NM_001190818.2	NP_001177747.1	origin recognition complex subunit 1 isoform 1
NM_001190819.2	NP_001177748.1	origin recognition complex subunit 1 isoform 2
NM_004153.4	NP_004144.2	origin recognition complex subunit 1 isoform 1

Gene Ontology

Molecular Function
Biological Process
Cellular Component

Molecular Function GO Annotation	Evidence	Reference	Source
enables protein binding	IPI IPI: Inferred from physical interaction	11931757	GOA

Biological Process GO Annotation	Evidence	Reference	Source
involved in DNA replication initiation	IDA IDA: Inferred from direct assay	16549788	GOA

Cellular Component GO Annotation	Evidence	Reference	Source
colocalizes with chromosome, telomeric region	IDA IDA: Inferred from direct assay	24270157	GOA
part of nuclear origin of replication recognition complex	IDA IDA: Inferred from direct assay	20932478	GOA
part of nuclear origin of replication recognition complex	IPI IPI: Inferred from physical interaction	16549788	GOA
part of origin recognition complex	IDA IDA: Inferred from direct assay	17716973	GOA

EXP: Inferred from Experiment IDA: Inferred from direct assay IPI: Inferred from physical interaction IMP: Inferred from mutant phenotype IGI: Inferred from genetic interaction IEP: Inferred from expression pattern

ORC1 Protein Structure

BAH

AAA

Cdc6_C

0
200
400
600
800
861 a.a.

Protein Preferred Names

Protein Names

origin recognition complex subunit 1

origin recognition complex, subunit 1 homolog

Related Diseases

Diseases

Alias

Meier-Gorlin Syndrome 1

Meier-Gorlin Syndrome	Ear, Patella, Short Stature Syndrome
Microtia, Absent Patellae, Micrognathia Syndrome	MGORS1
Eps	Ear-Patella-Short Stature Syndrome
Ear Patella Short Stature Syndrome	Microtia Absent Patellae Micrognathia Syndrome
Meier-Gorlin Syndrome, Type 1

Microtia

Congenital Small Ears

Hypoplasia Of Ear

Genitourinary Tract Anomalies

Humeroradial Synostosis

Humero-Radial Fusion	Humero-Radial Synostosis
Ramer Ladda Syndrome

Malaria

Malaria, Susceptibility To	Malaria, Resistance To
Malaria, Cerebral	Cerebral Malaria
Malaria, Severe, Susceptibility To	Malaria, Severe, Resistance To
Malaria, Cerebral, Susceptibility To	Induced Malaria
Malaria, Vivax, Protection Against	Malaria, Severe
Malaria, Cerebral, Reduced Risk Of	Malaria, Protection Against
Resistance To Malaria Due To G6pd Deficiency	Malaria Due To G6pd Deficiency
Malarial Encephalitis	CM
Malaria Cerebral	Susceptibility To Malaria
Acute Pernicious Fever	Aestivo-Autumnal Fever
Aestivo Autumnal Malaria	Chagres Fever
Continued Malaria Fever	Estivo-Autumnal Fever
Estivo-Autumnal Malaria	Estivo-Autumnal Malarial Fever
Falciparum Fever	Malignant Tertian Fever
Malignant Tertian Malaria	Pernicious Intermittent Fever
Pernicious Malaria	Quotidian Malaria
Subtertian Fever	Subtertian Malaria Fever
Subtertian Malignant Tertian Malaria	Tropical Malaria
Algid Malaria	Bilious Haemoglobinuric Fever
Black Water Fever	Blackwater Fever
Malarial Blackwater Fever	Severe Malarial Falciparum
West African Fever	Malarial Haematinuria
Haemoglobinuric Fever	Haemoglobinuric Malaria
Severe Plasmodium Falciparum Malaria	Malarial Haemoglobinuria
Malarial Haematuria	Falciparum Malaria [Malignant Tertian]
Malaria Tropica	Malarial Shock
Chagres Virus Disease	Malignant Malaria
Mtm - [Malignant Tertian Malaria]	Tm -[Malignant Tertian Malaria]
Panama Fever	St - [Subtertian Malaria]
Malarial Quotidian	Benign Tertian Malaria
Tertian Ague	Vivax Fever
Plasmodium Vivax Malaria Nos	Btm - [Benign Tertian Malaria]
Bt - [Benign Tertian Malaria]	Vivax Malaria
Benign Tertian Vivax Malaria	Tertian Malaria
Quartan Malaria	Quartan Ague
Quartan Fever	Plasmodium Malariae Malaria Nos
Quartan Malarial	Malaria By Plasmodium Malariae
Malariae Malaria	Ovale Tertian Malaria
Plasmodium Ovale Fever	Malaria Fever By Plasmodium Ovale
Ovale Malaria	Malaria By Plasmodium Ovale
Malarial Ovale	Marsh Fever
Remittent Congestive Fever	Coastal Fever
Remittent Gastric Fever	Miasmatic Fever
Congestive Remittent Fever	Intermittent Fever
Jungle Fever	Paludism
Cameroon Fever	Ague
Corsican Fever	Intermittent Bilious Fever
Disease Due To Plasmodiidae	Malarial Fever
Plasmodiosis	Remittent Fever
Roman Fever	Malaria Fever Nos
Malaria Nos	Paludal Fever
Clinically Diagnosed Malaria	Clinically Diagnosed Malaria Without Parasitological Confirmation
Congestive Fever	Malarial Cachexia
Marsh Cachexia	Paludal Cachexia
Recurrent Malaria	Remittent Malaria

Isolated Growth Hormone Deficiency, Type Ia

Ighd Ia	Primordial Dwarfism
Isolated Growth Hormone Deficiency Type Ia	Sexual Ateleiotic Dwarfism
Pituitary Dwarfism I	IGHD1A
Illig-Type Growth Hormone Deficiency	Growth Hormone Deficiency, Isolated, Type Ia
Congenital Ighd Type Ia	Congenital Isolated Gh Deficiency Type Ia
Congenital Isolated Growth Hormone Deficiency Type Ia	Pituitary Dwarfism 1
Growth Hormone Deficiency, Isolated, Autosomal Recessive	Autosomal Recessive Isolated Growth Hormone Deficiency
Isolated Growth Hormone Deficiency Type 1a	Congenital Ighd
Congenital Isolated Gh Deficiency	Congenital Isolated Growth Hormone Deficiency
Growth Hormone Deficiency, Isolated Autosomal Recessive	Illig Type Growth Hormone Deficiency
Non-Acquired Isolated Growth Hormone Deficiency	Growth Hormone Deficiency, Isolated, 1a
Growth Hormone Deficiency Isolated Autosomal Recessive	Dwarfism, Primordial
Dwarfism

Microcephaly

Microencephaly	Microcephalus
Microcephalic	Nanocephaly
Congenital Microcephaly	Brain Hypoplasia
Brain Nondevelopment	Cephalic Hypoplasia
Undeveloped Cerebrum	Undeveloped Brain
Micrencephalon	Micrencephaly

Diseases	Alias
Waldenstroem'S Macroglobulinemia	Waldenstroem'S Macroglobulinemia Waldenstroem'S Macroglobulinemia Macroglobulinemia Of Waldenstrom Lymphoplasmacytic Lymphoma With Igm Gammopathy Lymphoplasmacytic Lymphoma Waldenstroem'S Macroglobulinemia Waldenstroem'S Macroglobulinemia Macroglobulinemia Of Waldenstrom Lymphoplasmacytic Lymphoma With Igm Gammopathy Lymphoplasmacytic Lymphoma

Related Agents

Pre-clinical Phase

Bioactive Molecules (1)

Cat. No.	Product Name	Effect	Purity	Rare Diseases
HY-RS09825	ORC1 Human Pre-designed siRNA Set A	Pre-designed Sets	/	Unkown

Orthologs Information

Species	Symbol	Source	ID
Mus musculus	ORC1	MGD	MGI:1328337
Rattus norvegicus	ORC1	RGD	RGD:631435
Felis catus	ORC1	VGNC	VGNC:68648
Canis familiaris	ORC1	VGNC	VGNC:44140
Bos taurus	ORC1	VGNC	VGNC:32446
Macaca mulatta	ORC1	VGNC	VGNC:106463
Others	ORC1	NCBI

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