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Nagy M, Entz P, Otremba P, Schoenemann C, Murphy N, Dapprich J. Haplotype-specific extraction: a universal method to resolve ambiguous genotypes and detect new alleles - demonstrated on HLA-B. ACTA ACUST UNITED AC 2007; 69:176-80. [PMID: 17257321 DOI: 10.1111/j.1399-0039.2006.00741.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Haplotype-specific extraction (HSE) allows the collection of individual alleles by separating diploid samples into their haploid components. The separation step is performed using magnetic beads in conjunction with allele-group-specific probes. The haplo-separated DNA samples can be directly typed with downstream applications such as sequence-specific oligonucleotide (SSO) typing, sequence-specific primer (SSP) typing, and sequence-based (SB) typing. Here we show that HSE permits the direct sequencing of an allele in its individual, separated state, including previously unknown alleles. Allele pair combinations that cannot be resolved by SSP, SSO, or generic SB typings can be unambiguously typed after the alleles are separated by HSE, which allows for new alleles to be easily detected without cloning. We show how HSE was performed to separate samples with locus-specific ambiguities in human leukocyte antigen (HLA)-B, which could not be resolved by means of generic SB typing for either sample. After haplotype-specific separation of the respective allele pairs, novel polymorphisms in the HLA-B*56 and HLA-B*44 alleles were clearly detected by SB typing.
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Affiliation(s)
- M Nagy
- Institute of Legal Medicine, Humboldt-University, Charite, Berlin 10115, Germany.
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2
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Chu CC, Chang HL, Chen ZS, Lee HL, Lin M. A novel HLA-B allele, B*5612, identified by sequence-based typing method. Int J Immunogenet 2006; 33:343-5. [PMID: 16984278 DOI: 10.1111/j.1744-313x.2006.00619.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
HLA-B*5612, found in Taiwan using sequence-based typing method, was identical to HLA-B*5502 in exon 2 but differed in exon 3 by 10 nucleotide substitutions at positions 353-420 leading to five amino acid change at codon 94, 95, 97, 103 and 116. As this sequence motif was not found in the Asian population, it is likely that HLA-B*5612 is the product of a complex mechanism of implying a dual gene conversion event.
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Affiliation(s)
- C-C Chu
- Transfusion Medicine Laboratory, Medical Research Department, Mackay Memorial Hospital, Taiwan
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Kennedy CT, Greville WD, Dodd R, Le T, Taverniti A, Chapman G, Wallace R, Kennedy A, Strickland J, Dunckley H. Six new HLA class I alleles detected by PCR-SSO genotyping. TISSUE ANTIGENS 2002; 59:320-4. [PMID: 12135433 DOI: 10.1034/j.1399-0039.2002.590412.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
This paper describes six new alleles; A*0240, A*2614, B*3924, B*4425, Cw*0807 and Cw*12023, which were discovered during routine genotyping with sequence specific oligonucleotides (SSO's). Five of the new alleles have changes in residues which belong to the antigen binding site of the HLA protein. These new variants may have altered antigen binding properties and may cause differential immunological responses that could affect transplantation outcome1.
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Affiliation(s)
- C T Kennedy
- Molecular Genetics, Tissue Typing, Australian Red Cross Blood Service, 153 Clarence Street, Sydney, NSW 2000, Australia
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4
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Schreuder GM, Hurley CK, Marsh SG, Lau M, Maiers M, Kollman C, Noreen HJ. The HLA Dictionary 2001: a summary of HLA-A, -B, -C, -DRB1/3/4/5 and -DQB1 alleles and their association with serologically defined HLA-A, -B, -C, -DR and -DQ antigens. EUROPEAN JOURNAL OF IMMUNOGENETICS : OFFICIAL JOURNAL OF THE BRITISH SOCIETY FOR HISTOCOMPATIBILITY AND IMMUNOGENETICS 2001; 28:565-96. [PMID: 11843954 DOI: 10.1046/j.0960-7420.2001.00284.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
This report presents the serological equivalents of 123 HLA-A, 272 HLA-B and 155 HLA-DRB1 alleles. The equivalents cover over 64% of the presently identified HLA-A, -B and -DRB1 alleles. The dictionary is an update of the one published in 1999 (<1>Schreuder et al., 1999, Tissue Antigens, 54, 409) and also includes equivalents for HLA-C, DRB3, DRB4, DRB5 and DQB1 alleles. The data summarize information obtained by the WHO Nomenclature Committee for Factors of the HLA System, the International Cell Exchange (UCLA), the National Marrow Donor Program (NMDP) and individual laboratories. In addition, a listing is provided of alleles that are expressed as antigens with serological reaction patterns that differ from the well-established HLA specificities. The equivalents provided will be useful in guiding searches for unrelated hematopoietic stem cell donors in which patients and/or potential donors are typed by either serology or DNA-based methods. These equivalents will also serve typing and matching procedures for organ transplant programmes where HLA typings from donors and from recipients on waiting lists represent mixtures of serological and molecular typings. The tables with HLA equivalents and a questionnaire for submission of serological reaction patterns for poorly identified allelic products will also be available on the WMDA web page: www.worldmarrow.org
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Affiliation(s)
- G M Schreuder
- Department of Immunohematology and Blood Transfusion, E3-Q, Leiden University Medical Center, PO Box 9600, NL-2300 RC Leiden, the Netherlands.
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Schreuder GM, Hurley CK, Marsh SG, Lau M, Maiers M, Kollman C, Noreen HJ. The HLA dictionary 2001: a summary of HLA-A, -B, -C, -DRB1/3/4/5, -DQB1 alleles and their association with serologically defined HLA-A, -B, -C, -DR, and -DQ antigens. Hum Immunol 2001; 62:826-49. [PMID: 11476907 DOI: 10.1016/s0198-8859(01)00271-3] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
This report presents the serologic equivalents of 123 HLA-A, 272 HLA-B, and 155 HLA-DRB1 alleles. The equivalents cover over 64 percent of the presently identified HLA-A, -B, and -DRB1 alleles. The dictionary is an update of the one published in 1999 (Schreuder GMTh, Hurley CK, Marsh SGE, Lau M, Maiers M, Kollman C, Noreen H. The HLA dictionary 1999: a summary of HLA-A, -B, -C, -DRB1/3/4/5, -DQB1 alleles and their association with serologically defined HLA-A, -B, -C, -DR and -DQ antigens. Tissue Antigens 54:407, 1999) and also includes equivalents for HLA-C, DRB3, DRB4, DRB5, and DQB1 alleles. The data summarize information obtained by the WHO Nomenclature Committee for Factors of the HLA System, the International Cell Exchange (UCLA), the National Marrow Donor Program (NMDP), and individual laboratories. In addition, a listing is provided of alleles which are expressed as antigens with serologic reaction patterns that differ from the well-established HLA specificities. The equivalents provided will be useful in guiding searches for unrelated hematopoietic stem cell donors in which patients and/or potential donors are typed by either serology or DNA-based methods. These equivalents will also serve typing and matching procedures for organ transplant programs where HLA typings from donors and from recipients on waiting lists represent mixtures of serologic and molecular typings. The tables with HLA equivalents and a questionnaire for submission of serologic reaction patterns for poorly identified allelic products will also be available on the WMDA web page: www.worldmarrow.org.
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Affiliation(s)
- G M Schreuder
- World Marrow Donor Association, Quality Assurance Working Group, Leiden, The Netherlands.
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Schreuder GM, Hurley CK, Marsh SG, Lau M, Maiers M, Kollman C, Noreen HJ. The HLA Dictionary 2001: a summary of HLA-A, -B, -C, -DRB1/3/4/5, -DQB1 alleles and their association with serologically defined HLA-A, -B, -C, -DR and -DQ antigens. TISSUE ANTIGENS 2001; 58:109-40. [PMID: 11696227 DOI: 10.1034/j.1399-0039.2001.580210.x] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
This report presents the serologic equivalents of 123 HLA-A, 272 HLA-B and 155 HLA-DRB1 alleles. The equivalents cover over 64% of the presently identified HLA-A, -B and -DRB1 alleles. The dictionary is an update of the one published in 1999 and also includes equivalents for HLA-C, DRB3, DRB4, DRB5 and DQB1 alleles. The data summarize information obtained by the WHO Nomenclature Committee for Factors of the HLA System, the International Cell Exchange (UCLA), the National Marrow Donor Program (NMDP) and individual laboratories. In addition, a listing is provided of alleles which are expressed as antigens with serologic reaction patterns that differ from the well-established HLA specificities. The equivalents provided will be useful in guiding searches for unrelated hematopoietic stem cell donors in which patients and/or potential donors are typed by either serology or DNA-based methods. These equivalents will also serve typing and matching procedures for organ transplant programs where HLA typings from donors and from recipients on waiting lists represent mixtures of serologic and molecular typings. The tables with HLA equivalents and a questionnaire for submission of serologic reaction patterns for poorly identified allelic products will also be available on the WMDA web page: http://www.worldmarrow.org.
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Affiliation(s)
- G M Schreuder
- World Marrow Donor Association Quality Assurance Working Group, Leiden, The Netherlands.
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Marsh SG, Bodmer JG, Albert ED, Bodmer WF, Bontrop RE, Dupont B, Erlich HA, Hansen JA, MacH B, Mayr WR, Parham P, Petersdorf EW, Sasazuki T, Schreuder GM, Strominger JL, Svejgaard A, Terasaki PI. Nomenclature for factors of the HLA system, 2000. EUROPEAN JOURNAL OF IMMUNOGENETICS : OFFICIAL JOURNAL OF THE BRITISH SOCIETY FOR HISTOCOMPATIBILITY AND IMMUNOGENETICS 2001; 28:377-424. [PMID: 11422419 DOI: 10.1046/j.1365-2370.2001.00268.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
- S G Marsh
- Anthony Nolan Research Institute, Royal Free Hospital, London, UK.
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Marsh SG, Bodmer JG, Albert ED, Bodmer WF, Bontrop RE, Dupont B, Erlich HA, Hansen JA, Mach B, Mayr WR, Parham P, Petersdorf EW, Sasazuki T, Schreuder GM, Strominger JL, Svejgaard A, Terasaki PI. Nomenclature for factors of the HLA system, 2000. Hum Immunol 2001; 62:419-68. [PMID: 11295476 DOI: 10.1016/s0198-8859(01)00229-4] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- S G Marsh
- Anthony Nolan Research Institute, Royal Free Hospital, Hampstead, UK
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Marsh SG, Bodmer JG, Albert ED, Bodmer WF, Bontrop RE, Dupont B, Erlich HA, Hansen JA, Mach B, Mayr WR, Parham P, Petersdorf EW, Sasazuki T, Schreuder GM, Strominger JL, Svejgaard A, Terasaki PI. Nomenclature for factors of the HLA system, 2000. TISSUE ANTIGENS 2001; 57:236-83. [PMID: 11285132 DOI: 10.1034/j.1399-0039.2001.057003236.x] [Citation(s) in RCA: 133] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- S G Marsh
- Anthony Nolan Research Institute, Royal Free Hospital, London, United Kingdom.
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