13个udp葡萄糖醛酸基转移酶基因编码在人UGT1基因复合体位点上。
文章的细节
-
引用
-
Gong QH, Cho JW, Huang T, Potter C, Gholami N, Basu NK, Kubota S, Carvalho S, Pennington MW, Owens IS, Popescu NC
13个udp葡萄糖醛酸基转移酶基因编码在人UGT1基因复合体位点上。
药物遗传学。2001 Jun;11(4):357-68。
- PubMed ID
-
11434514 (PubMed视图]
- 摘要
-
原来的新型UGT1复合体位点先前被证明编码6种不同的udp -葡萄糖醛酸基转移酶(转移酶)基因,现已被扩展并证明可以指定总共13种亚型。这些基因被指定为UGT1A1到UGT1A13p,其中有4个伪基因。UGT1A2p和UGT1A11p到UGT1A13p要么有核苷酸缺失,要么有缺陷的TATA盒,因此是伪的。在基因座的5'区域,13个独特的外显子1被排列成串联阵列,每个外显子都有自己的近端TATA盒元素,并且依次连接到四个公共外显子,以允许独立的转录起始产生重叠的初级转录本。在9个可行的原始转录本中,只有先导外显子被预测剪接到4个常见外显子上,产生具有相同3'末端的mrna和具有相同羧基末端的转移酶同工酶。独特的氨基端指定了受体-底物的选择,而共同的羧基端显然指定了与共同的供体底物- udp -葡萄糖醛酸的相互作用。在扩展区域,可行的塔塔箱是A(A)TgA(AA)T或AT14AT;在原位点UGT1A1的元素为A(TA)7A,其他基因为TAATT/CAA(A)。UGT1A1指定了至关重要的胆红素转移酶亚型。外显子1之间的关系如下:从UGT1A2p到UGT1A5组成的a簇具有87-92%的相同度,UGT1A7到UGT1A13p组成的B簇具有67-91%的相同度。 For the two not included in a cluster, UGT1A1 is more identical to cluster A at 60-63%, whereas UGT1A6 is identical by between 48% and 56% to all other unique exons. The locus was expanded from 95 kb to 218 kb. Extensive probing of clones beyond 218 kb with coding nucleotides for a highly conserved amino acid sequence present in all transferases was unable to detect other exons 1. The mRNAs are differentially expressed in hepatic and extrahepatic tissues. This locus is indeed novel, indicating the least usage of exon sequences in specifying different transferase isozymes that have an expansive substrate range.
引用本文的药物库数据
- 多肽
-
名字 UniProt ID UDP-glucuronosyltransferase 1 - 9 O60656 细节 UDP-glucuronosyltransferase 1 - 1 P22309 细节 UDP-glucuronosyltransferase 1 - 4 P22310 细节 UDP-glucuronosyltransferase 1 - 3 P35503 细节 UDP-glucuronosyltransferase 1 - 10 Q9HAW8 细节 UDP-glucuronosyltransferase 1 - 8 Q9HAW9 细节 UDP-glucuronosyltransferase 1 - 6 P19224 细节 UDP-glucuronosyltransferase 1 - 7 Q9HAW7 细节