Genomic landscape of single-stranded DNA gapped intermediates in Escherichia coli.
Genomic landscape of single-stranded DNA gapped intermediates in Escherichia coli.
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DOI:
10.1093/nar/gkab1269
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发表时间:
2022-01-25
影响因子:
14.9
通讯作者:
Goodman MF
中科院分区:
文献类型:
--
作者:
Pham P;Shao Y;Cox MM;Goodman MF
Single-stranded (ss) gapped regions in bacterial genomes (gDNA) are formed on W- and C-strands during replication, repair, and recombination. Using non-denaturing bisulfite treatment to convert C to U on ssDNA, combined with deep sequencing, we have mapped gDNA gap locations, sizes, and distributions in Escherichia coli for cells grown in mid-log phase in the presence and absence of UV irradiation, and in stationary phase cells. The fraction of ssDNA on gDNA is similar for W- and C-strands, ∼1.3% for log phase cells, ∼4.8% for irradiated log phase cells, and ∼8.5% for stationary phase cells. After UV irradiation, gaps increased in numbers and average lengths. A monotonic reduction in ssDNA occurred symmetrically between the DNA replication origin of (OriC) and terminus (Ter) for log phase cells with and without UV, a hallmark feature of DNA replication. Stationary phase cells showed no OriC → Ter ssDNA gradient. We have identified a spatially diverse gapped DNA landscape containing thousands of highly enriched ‘hot’ ssDNA regions along with smaller numbers of ‘cold’ regions. This analysis can be used for a wide variety of conditions to map ssDNA gaps generated when DNA metabolic pathways have been altered, and to identify proteins bound in the gaps.
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影响因子:
64.8
作者:
Cox, MM;Goodman, MF;Marians, KJ
通讯作者:
Marians, KJ
DOI:
10.1073/pnas.0600785103
发表时间:
2006-06-13
影响因子:
11.1
作者:
Courcelle, Charmain T.;Chow, Kin-Hoe;Courcelle, Justin
通讯作者:
Courcelle, Justin
DOI:
10.1101/sqb.1968.033.01.023
发表时间:
1968-01-01
期刊:
COLD SPRING HARBOR SYMPOSIA ON QUANTITATIVE BIOLOGY
影响因子:
--
作者:
HOWARDEL.P;RUPP, WD;COLE, RS
通讯作者:
COLE, RS
影响因子:
4.5
作者:
Duigou S;Boccard F
通讯作者:
Boccard F
影响因子:
5.6
作者:
Amado, Luciana;Kuzminov, Andrei
通讯作者:
Kuzminov, Andrei