Incidental Mutation 'R6656:Orc2'
ID 526607
Institutional Source Beutler Lab
Gene Symbol Orc2
Ensembl Gene ENSMUSG00000026037
Gene Name origin recognition complex, subunit 2
Synonyms Orc2l
MMRRC Submission 044777-MU
Accession Numbers
Essential gene? Probably essential (E-score: 0.961) question?
Stock # R6656 (G1)
Quality Score 225.009
Status Validated
Chromosome 1
Chromosomal Location 58501930-58544268 bp(-) (GRCm39)
Type of Mutation critical splice donor site (2 bp from exon)
DNA Base Change (assembly) A to G at 58532818 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change
Ref Sequence ENSEMBL: ENSMUSP00000139869 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000027198] [ENSMUST00000114325] [ENSMUST00000190695]
AlphaFold Q60862
Predicted Effect probably null
Transcript: ENSMUST00000027198
SMART Domains Protein: ENSMUSP00000027198
Gene: ENSMUSG00000026037

DomainStartEndE-ValueType
low complexity region 176 201 N/A INTRINSIC
Pfam:ORC2 254 563 2.5e-110 PFAM
Predicted Effect probably null
Transcript: ENSMUST00000114325
SMART Domains Protein: ENSMUSP00000109964
Gene: ENSMUSG00000026037

DomainStartEndE-ValueType
low complexity region 128 153 N/A INTRINSIC
Pfam:ORC2 206 517 1.2e-108 PFAM
Predicted Effect probably null
Transcript: ENSMUST00000190695
Coding Region Coverage
  • 1x: 99.9%
  • 3x: 99.7%
  • 10x: 98.4%
  • 20x: 95.8%
Validation Efficiency 97% (35/36)
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] 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]
Allele List at MGI
Other mutations in this stock
Total: 36 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Ahctf1 T C 1: 179,581,078 (GRCm39) N1708S probably benign Het
Ahnak2 C T 12: 112,748,991 (GRCm39) M285I probably benign Het
Angptl1 A T 1: 156,684,806 (GRCm39) D325V probably damaging Het
Anln A T 9: 22,262,298 (GRCm39) V931E probably damaging Het
Ascc3 C T 10: 50,526,021 (GRCm39) R578* probably null Het
B3galnt2 C T 13: 14,150,161 (GRCm39) A168V probably benign Het
Bhlhe40 TG TGG 6: 108,641,818 (GRCm39) 254 probably null Het
Cd22 T C 7: 30,577,182 (GRCm39) I42V probably benign Het
Cyp2b19 C T 7: 26,466,280 (GRCm39) T361I probably benign Het
D930048N14Rik C A 11: 51,544,576 (GRCm39) probably benign Het
Ehf T C 2: 103,113,928 (GRCm39) N23S probably damaging Het
Eif2ak3 T A 6: 70,860,699 (GRCm39) I425N probably damaging Het
Fbxo4 C T 15: 4,005,305 (GRCm39) V192M probably damaging Het
Gm21190 T C 5: 15,730,849 (GRCm39) Q169R possibly damaging Het
Gngt1 A G 6: 3,994,246 (GRCm39) D8G possibly damaging Het
Ift140 T C 17: 25,251,147 (GRCm39) L31P probably damaging Het
Keg1 C T 19: 12,686,994 (GRCm39) Q8* probably null Het
Lama3 T A 18: 12,682,283 (GRCm39) M1083K possibly damaging Het
Lrp1b A T 2: 40,527,876 (GRCm39) Y68* probably null Het
Lyz3 A G 10: 117,071,534 (GRCm39) V115A probably benign Het
Mctp1 A T 13: 77,178,055 (GRCm39) K947N probably damaging Het
Muc5ac A G 7: 141,357,065 (GRCm39) Y1113C probably damaging Het
Myb C T 10: 21,028,844 (GRCm39) V85M probably damaging Het
Npas2 T G 1: 39,401,029 (GRCm39) S798A unknown Het
Or13a21 G T 7: 139,999,517 (GRCm39) H56Q probably damaging Het
Parpbp T C 10: 87,946,175 (GRCm39) T415A probably benign Het
Pcdha3 T C 18: 37,080,875 (GRCm39) V539A probably benign Het
Piwil4 T C 9: 14,621,230 (GRCm39) E601G probably damaging Het
Pramel51 A T 12: 88,142,763 (GRCm39) L285Q possibly damaging Het
Ptpn3 T A 4: 57,205,905 (GRCm39) I696F probably damaging Het
Sec63 C T 10: 42,692,379 (GRCm39) Q617* probably null Het
Sgip1 C A 4: 102,762,765 (GRCm39) probably benign Het
Sirpd T C 3: 15,385,558 (GRCm39) T115A probably damaging Het
Tktl2 T C 8: 66,965,381 (GRCm39) V313A probably benign Het
Tmem63b C A 17: 45,978,634 (GRCm39) R325L probably benign Het
Ttn C T 2: 76,539,700 (GRCm39) G34429R probably damaging Het
Other mutations in Orc2
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00434:Orc2 APN 1 58,532,875 (GRCm39) missense possibly damaging 0.81
IGL00549:Orc2 APN 1 58,520,201 (GRCm39) missense probably benign 0.00
IGL01343:Orc2 APN 1 58,532,014 (GRCm39) critical splice donor site probably null
IGL01357:Orc2 APN 1 58,536,552 (GRCm39) missense probably benign 0.00
IGL01357:Orc2 APN 1 58,536,551 (GRCm39) missense probably benign 0.26
IGL02167:Orc2 APN 1 58,522,798 (GRCm39) unclassified probably benign
IGL02343:Orc2 APN 1 58,508,825 (GRCm39) critical splice donor site probably null
IGL02548:Orc2 APN 1 58,505,281 (GRCm39) unclassified probably benign
R0557:Orc2 UTSW 1 58,508,846 (GRCm39) missense probably damaging 1.00
R1470:Orc2 UTSW 1 58,520,317 (GRCm39) unclassified probably benign
R1886:Orc2 UTSW 1 58,510,247 (GRCm39) critical splice acceptor site probably null
R2065:Orc2 UTSW 1 58,508,854 (GRCm39) missense probably damaging 1.00
R3848:Orc2 UTSW 1 58,520,151 (GRCm39) missense probably benign 0.08
R4389:Orc2 UTSW 1 58,514,020 (GRCm39) missense probably benign 0.21
R4393:Orc2 UTSW 1 58,506,809 (GRCm39) critical splice donor site probably null
R4613:Orc2 UTSW 1 58,539,468 (GRCm39) nonsense probably null
R5183:Orc2 UTSW 1 58,513,977 (GRCm39) missense possibly damaging 0.83
R5652:Orc2 UTSW 1 58,505,231 (GRCm39) missense probably damaging 0.99
R5793:Orc2 UTSW 1 58,536,547 (GRCm39) start codon destroyed probably null 0.27
R5997:Orc2 UTSW 1 58,511,547 (GRCm39) missense probably damaging 1.00
R6007:Orc2 UTSW 1 58,506,851 (GRCm39) missense probably benign 0.03
R6330:Orc2 UTSW 1 58,539,493 (GRCm39) missense probably benign
R6923:Orc2 UTSW 1 58,539,534 (GRCm39) missense probably benign 0.01
R6934:Orc2 UTSW 1 58,539,523 (GRCm39) missense probably benign 0.28
R7354:Orc2 UTSW 1 58,508,906 (GRCm39) missense possibly damaging 0.96
R7718:Orc2 UTSW 1 58,519,476 (GRCm39) missense possibly damaging 0.65
R7950:Orc2 UTSW 1 58,506,827 (GRCm39) missense possibly damaging 0.64
R8820:Orc2 UTSW 1 58,515,639 (GRCm39) missense probably benign 0.30
R8858:Orc2 UTSW 1 58,532,857 (GRCm39) missense probably benign 0.28
R8956:Orc2 UTSW 1 58,505,221 (GRCm39) missense probably damaging 0.98
R8978:Orc2 UTSW 1 58,511,499 (GRCm39) missense possibly damaging 0.82
R9126:Orc2 UTSW 1 58,515,628 (GRCm39) missense probably benign 0.41
R9210:Orc2 UTSW 1 58,515,695 (GRCm39) missense probably damaging 1.00
R9212:Orc2 UTSW 1 58,515,695 (GRCm39) missense probably damaging 1.00
R9406:Orc2 UTSW 1 58,506,842 (GRCm39) missense probably damaging 1.00
R9746:Orc2 UTSW 1 58,536,610 (GRCm39) missense probably damaging 1.00
Z1088:Orc2 UTSW 1 58,515,675 (GRCm39) missense probably benign
Predicted Primers PCR Primer
(F):5'- AGATGACTTTCTGCCCTTTATTGAC -3'
(R):5'- TGGGAAGACATCTTAACGGC -3'

Sequencing Primer
(F):5'- AAATTGCATTCTGGCCAGGC -3'
(R):5'- CCTTTCTGATAAAAGTAGTACAGGTG -3'
Posted On 2018-07-23