IP Library › Granted Patent US 12,416,005
Granted Patent B2
US 12,416,005 · App. 17/515,139 · Granted Sep 16, 2025

Pig with a genetically modified CD163 gene resistant to PRRSv

Inventors: Andrew Mark Cigan (Madison, WI); Jonathan Edward Lightner (Jefferson, WI); Matthew Scott Culbertson (Wilmington, NC); William Thomas Christianson (Hendersonville, TN); Benjamin Beaton (DeForest, WI); Brian Burger (Madison, WI); Dylan Barnes (Madison, WI); Matthew Campbell (Madison, WI)
Assignee: Genus plc
C12N15/113A01K67/0275C12N9/22C12N15/8778A01K2217/052A01K2227/108C12N2310/20C12N2320/34
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Quick Facts
Patent No.
US 12,416,005
App. No.
17/515,139
Granted
Sep 16, 2025
Kind
B2
Abstract

The present disclosure relates to methods and compositions useful for prevention of porcine reproductive and respiratory syndrome virus (PRRSv) in animals, including animals of the species Sus scrofa . The present teachings relate to swine wherein at least one allele of a CD163 gene has been inactivated, and to specific methods and nucleic acid sequences used in gene editing to inactivate the CD163 gene. Swine wherein both alleles of the CD163 gene are inactivated are resistant to porcine reproductive and respiratory syndrome virus (PRRSv). Elite lines comprising homozygous CD163-edited genes retain their superior properties.

Claims (6)

1. A method of screening comprising:

i) breeding a genetically edited pig whose genome comprises a CD163 gene that has a homozygous deletion of exon 7 and comprises the nucleic acid sequence of SEQ ID NO: 453, wherein the pig exhibits resistance to porcine reproductive and respiratory syndrome virus (PRRSV) such that offspring are obtained;

ii) screening the genomes of the offspring for the presence of a CD163 gene that has a homozygous deletion of exon 7 and comprises the nucleic acid sequence of SEQ ID NO: 453; and

iii) screening the offspring for resistance to PRRSV.

2. The method of claim 1 , wherein the screening is performed using polymerase chain reaction (PCR) and primers comprising the nucleic acid sequences of SEQ ID NO: 556 and 557.

3. The method of claim 1 , wherein the screening is performed using polymerase chain reaction (PCR) and primers comprising the nucleic acid sequences of SEQ ID NO: 562 and 563.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 12, 2022
From: BEATON, BENJAMIN; BURGER, BRIAN
To: GENUS PLC
Reel/Frame 058626/0542 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 12, 2022
From: BARNES, DYLAN; CAMPBELL, MATTHEW
To: GENUS PLC
Reel/Frame 058626/0549 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 11, 2022
From: CIGAN, ANDREW MARK; LIGHTNER, JONATHAN EDWARD; CULBERTSON, MATTHEW SCOTT; CHRISTIANSON, WILLIAM THOMAS
To: GENUS PLC
Reel/Frame 058625/0158 →
Continuity (4)
Continuation 17307369 · May 4, 2021
Provisional Application 63021370 · May 7, 2020
Provisional Application 63020128 · May 5, 2020
Related Publication 20220042017A1 · Feb 10, 2022
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