Chromosome architecture in an archaeal species naturally lacking structural maintenance of chromosomes proteins.
Chromosome architecture in an archaeal species naturally lacking structural maintenance of chromosomes proteins.
复制标题
DOI:
10.1038/s41564-023-01540-6
复制
发表时间:
2024-01
影响因子:
28.3
通讯作者:
中科院分区:
文献类型:
--
作者:
Proteins in the structural maintenance of chromosomes (SMC) superfamily play key roles in chromosome organization and are ubiquitous across all domains of life. However, SMC proteins are notably absent in the Desulfurococcales of phylum Crenarchaeota. Intrigued by this observation, we performed chromosome conformation capture experiments in the model Desulfurococcales species Aeropyrum pernix. As in other archaea, we observe chromosomal interaction domains across the chromosome. The boundaries between chromosomal interaction domains show a dependence on transcription and translation for their definition. Importantly, however, we reveal an additional higher-order, bipartite organization of the chromosome—with a small high-gene-expression and self-interacting domain that is defined by transcriptional activity and loop structures. Viewing these data in the context of the distribution of SMC superfamily proteins in the Crenarchaeota, we suggest that the organization of the Aeropyrum genome represents an evolutionary antecedent of the compartmentalized architecture observed in the Sulfolobus lineage. SMC proteins are key architects of chromosome organization across all domains of life, yet in their absence, A. pernix relies on transcription, anchored loops and self-interaction domains to maintain genome architecture.
登录
查看更多内容
影响因子:
14.9
作者:
Gene Ontology Consortium
通讯作者:
Gene Ontology Consortium
影响因子:
8.8
作者:
Samson RY;Xu Y;Gadelha C;Stone TA;Faqiri JN;Li D;Qin N;Pu F;Liang YX;She Q;Bell SD
通讯作者:
Bell SD
影响因子:
48
作者:
Langmead, Ben;Salzberg, Steven L.
通讯作者:
Salzberg, Steven L.
DOI:
10.1126/science.1165322
发表时间:
2008-12-12
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Samson RY;Obita T;Freund SM;Williams RL;Bell SD
通讯作者:
Bell SD
影响因子:
3.9
作者:
通讯作者:
--