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  • Title: Comprehensive typing of DR52 (DRB3)-associated DRB1 and DRB3 alleles by PCR-RFLP.
    Author: Sengar DP, Goldstein R, Toye B, Hampton N.
    Journal: Tissue Antigens; 1994 May; 43(5):286-94. PubMed ID: 7940497.
    Abstract:
    The DR52-associated DRB1 and DRB3 alleles were resolved by PCR-RFLP. Second exon was amplified using four primer pairs (groups 1-4) for DRB1 and a pair for DRB3 alleles. Except for three endonucleases, all others had either none or only one site for a specific amplified product. Group 1 primers amplify 10 DRB1 alleles (DRB1*0302, 1101, 1302, 1303, 1305, 1307, 1402, 1403, 1407 and 1409). All but one pair, DRB1*1402 from 1409, could be resolved using seven endonucleases (ApaI, SacII, FokI, AvaII, BsaAI, BsrBI and SfaNI). Group 2 consisted of four alleles (DRB1*1201, 1202, 1404 and 1411) that can be resolved along with co-amplified DRB1*0804 and 0806 using five endonucleases (AvaII, SacII, FokI, HaeII and RsaI). Group 3 primers amplify 15 DRB1 alleles (DRB1*0301, 0303, 1102, 1103, 1104, 1107, 1301, 1304, 1306, 1308, 1401, 1405, 1406, 1408 and 14-New), which can be resolved using nine enzymes (KpnI, AvaII, FokI, SacII, HaeII, BsrBI, SfaNI, DdeI and RsaI). BsrBI, a new endonuclease, can resolve DRB1*1301 from 1306 and the previously unresolved allele DRB1*1103 from 1104. DRB1*1410, co-amplified with DR4 group-specific primers, is resolved with PstI which cleaves all DR4 alleles but not DRB1*1410. All four DRB3 alleles (DRB3*0101, 0201, 0202 and 0301) and their heterozygotes are resolved using two endonucleases, RsaI and HphI. Thirty-four DR52-associated alleles and their heterozygotes can be unambiguously resolved, except for DRB1*1402 from 1409.(ABSTRACT TRUNCATED AT 250 WORDS)
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