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US5310893A Expired / Lapsed US ⏱️ 0.0 years remaining

Method for HLA DP typing

Assignee: Roche Molecular Systems Inc
•
Filing: 1989-05-04
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Granted: 1994-05-10
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Expires: 2009-05-04
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Abstract

Abstract A process for determining the genotype of an individual with respect to the alleles at the HLA DP locus involves obtaining a sample of nucleic acid from the individual, and hybridizing the nucleic acids with a panel of probes specific for variant segments of DPalpha and DPbeta genes. Because the variation between DPbeta alleles is highly dispersed throughout the second exon of the DPbeta gene, the discovery of many different DPbeta alleles makes the process far more discriminating and informative than cellular, RFLP, or serological methods. The process can also be carried out on amplified nucleic acid produced by the polymerase chain reaction using primers specific for the second exon of the DPalpha and DPbeta genes. HLA DP DNA typing methods are useful in the prevention of graft rejection and host versus graft disease, in determining susceptibility to autoimmune diseases, in providing evidence concerning the derivation from an individual of forensic samples, and in paternity testing.

Inventors

  • 👤 Henry A. Erlich
  • 👤 Glenn T. Horn
  • 👤 Teodorica Bugawan
  • 👤 Ann B. Begovich

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 07:32
CPC Classifications
C; C12; C12Q; C12Q1/00; C12Q1/68; C12Q1/6876; C12Q1/6881; C07; C07K; C07K14/00; C07K14/435; C07K14/705; C07K14/70503; C07K14/70539; C12Q1/6811; C12Q2600/00; C12Q2600/156

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 10 words
An oligonucleotide probe selected from the group consisting of: ##STR4##
Claim 2
Dependent Claim 10 words
An oligonucleotide probe selected from the group consisting of: ##STR4##
Claim 3
Dependent Claim 14 words
A primer selected from the group consisting of DB01, DB03, UG19, and UG21 primers.
Claim 4
Dependent Claim 14 words
A primer selected from the group consisting of DB01, DB03, UG19, and UG21 primers.

References Cited (Backward Citations)

US4458066A Cited
US4582788A Cited
US5110920A Cited
US4683202A Cited
US4683202B1 Cited
US4683195A Cited
US4683195B1 Cited
EP0237362A1 Cited
US4889818A Cited
WO1989004875A2 Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1997-05-09 1997-11-08 1998-05-10 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2001-05-09 2001-11-08 2002-05-10 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2005-05-09 2005-11-08 2006-05-10 $7700.00 Window Closed / Lapsed

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