EXON STRUCTURE AT THE HUMAN ACP1 LOCUS SUPPORTS ALTERNATIVE SPLICING MODEL FOR F-ISOZYME AND S-ISOZYME GENERATION

被引:41
作者
LAZARUK, KDA [1 ]
DISSING, J [1 ]
SENSABAUGH, GF [1 ]
机构
[1] UNIV COPENHAGEN,INST FORENS GENET,DK-1168 COPENHAGEN,DENMARK
关键词
D O I
10.1006/bbrc.1993.2269
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
The human ACP1 locus encodes a genetically polymorphic cytoplasmic low-molecular-weight acid phosphatase. Each of the common alleles encodes two isoforms, f and s. Both isozymes are of equal length (157 residues) but differ in sequence over an internal 34 residue segment. Substantial portions of the ACP1*A, *B and *C alleles common to Europeans have been sequenced. Six linearly positioned exons containing codons 14 to 157 were identified. Two exons of equal length (114bp) interspaced by a short (41bp), probably nonfunctional, intron encode the specific f and s segments, respectively. These findings strongly support an alternative RNA splicing hypothesis. In addition, three allele-specific base substitutions were encountered. © 1993 Academic Press. All rights reserved.
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页码:440 / 446
页数:7
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