SEQUENCE ORGANIZATION OF THE BALBIANI-RING-2.1 GENE IN CHIRONOMUS-TENTANS

被引:23
作者
WIESLANDER, L
PAULSSON, G
机构
[1] Department of Molecular Genetics, Medical Nobel Institute, Karolinska Institutet
关键词
GENE FAMILY; REPETITIVE SEQUENCES; EXON-INTRON STRUCTURE;
D O I
10.1073/pnas.89.10.4578
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Balbiani rings are giant chromosomal puffs, containing related genes that provide unique possibilities for in vivo analysis of gene expression at the chromatin and ribonucleoprotein levels. Here, the 5' end of the Balbiani ring 2.1 gene in the dipteran Chironomus tentans has been isolated and the sequence organization of the entire Balbiani ring gene is presented. The gene contains five exons, one being extremely small, only 6 base pairs, and one being extremely large, almost-equal-to 30 kilobase pairs. Three introns are located at the 5' end and a fourth one is located at the 3' end. The central 30-kilobase-pair exon is entirely built from tandemly organized repeats. All repeats are virtually identical except for a few variant repeats at both ends of the repeat array. The number of repeats may vary between alleles and the length of the gene therefore changes between 30 and 35 kilobase pairs.
引用
收藏
页码:4578 / 4582
页数:5
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  • [1] THE 3' ENDS OF 2 GENES IN THE BALBIANI-RING-C LOCUS OF CHIRONOMUS-THUMMI
    BAUMLEIN, H
    PUSTELL, J
    WOBUS, U
    CASE, ST
    KAFATOS, FC
    [J]. JOURNAL OF MOLECULAR EVOLUTION, 1986, 24 (1-2) : 72 - 82
  • [2] EIN BALBIANI-RING ALS LOCUS EINER SPEICHELDRUSEN-MUTATION
    BEERMANN, W
    [J]. CHROMOSOMA, 1961, 12 (01) : 1 - &
  • [3] BEERMANN W, 1952, CHROMOSOMA, V5, P139
  • [4] BEERMANN W, 1962, PROTOPLASMATOLOGIA D, V6, P1
  • [5] STRUCTURE OF THE CHROMATIN AXIS DURING TRANSCRIPTION
    BJORKROTH, B
    ERICSSON, C
    LAMB, MM
    DANEHOLT, B
    [J]. CHROMOSOMA, 1988, 96 (05) : 333 - 340
  • [6] NUCLEAR-LOCALIZATION OF A DNA-BINDING C-TERMINAL DOMAIN FROM BALBIANI RING CODED SECRETORY PROTEIN
    BOTELLA, L
    GROND, C
    SAIGA, H
    EDSTROM, JE
    [J]. EMBO JOURNAL, 1988, 7 (12) : 3881 - 3888
  • [7] SIZE OF TRANSCRIPTION UNIT IN BALBIANI RING-2 OF CHIRONOMUS-TENTANS AS DERIVED FROM ANALYSIS OF PRIMARY TRANSCRIPT AND 75-S-RNA
    CASE, ST
    DANEHOLT, B
    [J]. JOURNAL OF MOLECULAR BIOLOGY, 1978, 124 (01) : 223 - 241
  • [8] LENGTH POLYMORPHISM IN THE THREONINE-GLYCINE-ENCODING REPEAT REGION OF THE PERIOD GENE IN DROSOPHILA
    COSTA, R
    PEIXOTO, AA
    THACKERAY, JR
    DALGLEISH, R
    KYRIACOU, CP
    [J]. JOURNAL OF MOLECULAR EVOLUTION, 1991, 32 (03) : 238 - 246
  • [9] LARGE-SIZED POLYSOMES IN CHIRONOMUS-TENTANS SALIVARY-GLANDS AND THEIR RELATION TO BALBIANI RING 75S RNA
    DANEHOLT, B
    ANDERSSON, K
    FAGERLIND, M
    [J]. JOURNAL OF CELL BIOLOGY, 1977, 73 (01) : 149 - 160
  • [10] TRANSCRIPTION IN POLYTENE CHROMOSOMES
    DANEHOLT, B
    [J]. CELL, 1975, 4 (01) : 1 - 9