---
_id: '26'
abstract:
- lang: eng
text: Expression of genes is a fundamental molecular phenotype that is subject to
evolution by different types of mutations. Both the rate and the effect of mutations
may depend on the DNA sequence context of a particular gene or a particular promoter
sequence. In this thesis I investigate the nature of this dependence using simple
genetic systems in Escherichia coli. With these systems I explore the evolution
of constitutive gene expression from random starting sequences at different loci
on the chromosome and at different locations in sequence space. First, I dissect
chromosomal neighborhood effects that underlie locus-dependent differences in
the potential of a gene under selection to become more highly expressed. Next,
I find that the effects of point mutations in promoter sequences are dependent
on sequence context, and that an existing energy matrix model performs poorly
in predicting relative expression of unrelated sequences. Finally, I show that
a substantial fraction of random sequences contain functional promoters and I
present an extended thermodynamic model that predicts promoter strength in full
sequence space. Taken together, these results provide new insights and guides
on how to integrate information on sequence context to improve our qualitative
and quantitative understanding of bacterial gene expression, with implications
for rapid evolution of drug resistance, de novo evolution of genes, and horizontal
gene transfer.
alternative_title:
- ISTA Thesis
article_processing_charge: No
author:
- first_name: Magdalena
full_name: Steinrück, Magdalena
id: 2C023F40-F248-11E8-B48F-1D18A9856A87
last_name: Steinrück
orcid: 0000-0003-1229-9719
citation:
ama: Steinrück M. The influence of sequence context on the evolution of bacterial
gene expression. 2018. doi:10.15479/AT:ISTA:th1059
apa: Steinrück, M. (2018). The influence of sequence context on the evolution
of bacterial gene expression. Institute of Science and Technology Austria.
https://doi.org/10.15479/AT:ISTA:th1059
chicago: Steinrück, Magdalena. “The Influence of Sequence Context on the Evolution
of Bacterial Gene Expression.” Institute of Science and Technology Austria, 2018.
https://doi.org/10.15479/AT:ISTA:th1059.
ieee: M. Steinrück, “The influence of sequence context on the evolution of bacterial
gene expression,” Institute of Science and Technology Austria, 2018.
ista: Steinrück M. 2018. The influence of sequence context on the evolution of bacterial
gene expression. Institute of Science and Technology Austria.
mla: Steinrück, Magdalena. The Influence of Sequence Context on the Evolution
of Bacterial Gene Expression. Institute of Science and Technology Austria,
2018, doi:10.15479/AT:ISTA:th1059.
short: M. Steinrück, The Influence of Sequence Context on the Evolution of Bacterial
Gene Expression, Institute of Science and Technology Austria, 2018.
date_created: 2018-12-11T11:44:14Z
date_published: 2018-10-30T00:00:00Z
date_updated: 2023-09-07T12:48:43Z
day: '30'
ddc:
- '576'
- '579'
degree_awarded: PhD
department:
- _id: CaGu
doi: 10.15479/AT:ISTA:th1059
file:
- access_level: closed
checksum: 413cbce1cd1debeae3abe2a25dbc70d1
content_type: application/vnd.openxmlformats-officedocument.wordprocessingml.document
creator: dernst
date_created: 2019-02-08T10:51:22Z
date_updated: 2020-07-14T12:45:43Z
embargo_to: open_access
file_id: '5941'
file_name: Thesis_Steinrueck_final.docx
file_size: 9190845
relation: source_file
- access_level: open_access
checksum: 3def8b7854c8b42d643597ce0215efac
content_type: application/pdf
creator: dernst
date_created: 2019-02-08T10:51:22Z
date_updated: 2021-02-11T11:17:14Z
embargo: 2019-11-02
file_id: '5942'
file_name: Thesis_Steinrueck_final.pdf
file_size: 7521973
relation: main_file
file_date_updated: 2021-02-11T11:17:14Z
has_accepted_license: '1'
language:
- iso: eng
month: '10'
oa: 1
oa_version: Published Version
page: '109'
publication_identifier:
issn:
- 2663-337X
publication_status: published
publisher: Institute of Science and Technology Austria
publist_id: '8029'
pubrep_id: '1059'
related_material:
record:
- id: '704'
relation: part_of_dissertation
status: public
status: public
supervisor:
- first_name: Calin C
full_name: Guet, Calin C
id: 47F8433E-F248-11E8-B48F-1D18A9856A87
last_name: Guet
orcid: 0000-0001-6220-2052
title: The influence of sequence context on the evolution of bacterial gene expression
type: dissertation
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
year: '2018'
...
---
_id: '704'
abstract:
- lang: eng
text: 'How the organization of genes on a chromosome shapes adaptation is essential
for understanding evolutionary paths. Here, we investigate how adaptation to rapidly
increasing levels of antibiotic depends on the chromosomal neighborhood of a drug-resistance
gene inserted at different positions of the Escherichia coli chromosome. Using
a dual-fluorescence reporter that allows us to distinguish gene amplifications
from other up-mutations, we track in real-time adaptive changes in expression
of the drug-resistance gene. We find that the relative contribution of several
mutation types differs systematically between loci due to properties of neighboring
genes: essentiality, expression, orientation, termination, and presence of duplicates.
These properties determine rate and fitness effects of gene amplification, deletions,
and mutations compromising transcriptional termination. Thus, the adaptive potential
of a gene under selection is a system-property with a complex genetic basis that
is specific for each chromosomal locus, and it can be inferred from detailed functional
and genomic data.'
article_number: e25100
author:
- first_name: Magdalena
full_name: Steinrück, Magdalena
id: 2C023F40-F248-11E8-B48F-1D18A9856A87
last_name: Steinrück
orcid: 0000-0003-1229-9719
- first_name: Calin C
full_name: Guet, Calin C
id: 47F8433E-F248-11E8-B48F-1D18A9856A87
last_name: Guet
orcid: 0000-0001-6220-2052
citation:
ama: Steinrück M, Guet CC. Complex chromosomal neighborhood effects determine the
adaptive potential of a gene under selection. eLife. 2017;6. doi:10.7554/eLife.25100
apa: Steinrück, M., & Guet, C. C. (2017). Complex chromosomal neighborhood effects
determine the adaptive potential of a gene under selection. ELife. eLife
Sciences Publications. https://doi.org/10.7554/eLife.25100
chicago: Steinrück, Magdalena, and Calin C Guet. “Complex Chromosomal Neighborhood
Effects Determine the Adaptive Potential of a Gene under Selection.” ELife.
eLife Sciences Publications, 2017. https://doi.org/10.7554/eLife.25100.
ieee: M. Steinrück and C. C. Guet, “Complex chromosomal neighborhood effects determine
the adaptive potential of a gene under selection,” eLife, vol. 6. eLife
Sciences Publications, 2017.
ista: Steinrück M, Guet CC. 2017. Complex chromosomal neighborhood effects determine
the adaptive potential of a gene under selection. eLife. 6, e25100.
mla: Steinrück, Magdalena, and Calin C. Guet. “Complex Chromosomal Neighborhood
Effects Determine the Adaptive Potential of a Gene under Selection.” ELife,
vol. 6, e25100, eLife Sciences Publications, 2017, doi:10.7554/eLife.25100.
short: M. Steinrück, C.C. Guet, ELife 6 (2017).
date_created: 2018-12-11T11:48:01Z
date_published: 2017-07-25T00:00:00Z
date_updated: 2024-03-25T23:30:14Z
day: '25'
ddc:
- '576'
department:
- _id: CaGu
doi: 10.7554/eLife.25100
file:
- access_level: open_access
checksum: 6b908b5db9f61f6820ebd7f8fa815571
content_type: application/pdf
creator: system
date_created: 2018-12-12T10:12:54Z
date_updated: 2020-07-14T12:47:48Z
file_id: '4975'
file_name: IST-2017-890-v1+1_elife-25100-v1.pdf
file_size: 2092088
relation: main_file
- access_level: open_access
checksum: ca21530389b720243552678125fdba35
content_type: application/pdf
creator: system
date_created: 2018-12-12T10:12:55Z
date_updated: 2020-07-14T12:47:48Z
file_id: '4976'
file_name: IST-2017-890-v1+2_elife-25100-figures-v1.pdf
file_size: 3428681
relation: main_file
file_date_updated: 2020-07-14T12:47:48Z
has_accepted_license: '1'
intvolume: ' 6'
language:
- iso: eng
license: https://creativecommons.org/licenses/by/4.0/
month: '07'
oa: 1
oa_version: Published Version
publication: eLife
publication_identifier:
issn:
- 2050084X
publication_status: published
publisher: eLife Sciences Publications
publist_id: '6990'
pubrep_id: '890'
quality_controlled: '1'
related_material:
record:
- id: '5564'
relation: popular_science
status: public
- id: '26'
relation: dissertation_contains
status: public
scopus_import: 1
status: public
title: Complex chromosomal neighborhood effects determine the adaptive potential of
a gene under selection
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 6
year: '2017'
...
---
_id: '5564'
abstract:
- lang: eng
text: Compressed Fastq files with whole-genome sequencing data of IS-wt strain D
and clones from four evolved populations (A11, C08, C10, D08). Information on
this data collection is available in the Methods Section of the primary publication.
article_processing_charge: No
author:
- first_name: Magdalena
full_name: Steinrück, Magdalena
id: 2C023F40-F248-11E8-B48F-1D18A9856A87
last_name: Steinrück
orcid: 0000-0003-1229-9719
- first_name: Calin C
full_name: Guet, Calin C
id: 47F8433E-F248-11E8-B48F-1D18A9856A87
last_name: Guet
orcid: 0000-0001-6220-2052
citation:
ama: Steinrück M, Guet CC. Fastq files for “Complex chromosomal neighborhood effects
determine the adaptive potential of a gene under selection.” 2017. doi:10.15479/AT:ISTA:65
apa: Steinrück, M., & Guet, C. C. (2017). Fastq files for “Complex chromosomal
neighborhood effects determine the adaptive potential of a gene under selection.”
Institute of Science and Technology Austria. https://doi.org/10.15479/AT:ISTA:65
chicago: Steinrück, Magdalena, and Calin C Guet. “Fastq Files for ‘Complex Chromosomal
Neighborhood Effects Determine the Adaptive Potential of a Gene under Selection.’”
Institute of Science and Technology Austria, 2017. https://doi.org/10.15479/AT:ISTA:65.
ieee: M. Steinrück and C. C. Guet, “Fastq files for ‘Complex chromosomal neighborhood
effects determine the adaptive potential of a gene under selection.’” Institute
of Science and Technology Austria, 2017.
ista: Steinrück M, Guet CC. 2017. Fastq files for ‘Complex chromosomal neighborhood
effects determine the adaptive potential of a gene under selection’, Institute
of Science and Technology Austria, 10.15479/AT:ISTA:65.
mla: Steinrück, Magdalena, and Calin C. Guet. Fastq Files for “Complex Chromosomal
Neighborhood Effects Determine the Adaptive Potential of a Gene under Selection.”
Institute of Science and Technology Austria, 2017, doi:10.15479/AT:ISTA:65.
short: M. Steinrück, C.C. Guet, (2017).
datarep_id: '65'
date_created: 2018-12-12T12:31:33Z
date_published: 2017-04-11T00:00:00Z
date_updated: 2024-02-21T13:47:28Z
day: '11'
ddc:
- '576'
department:
- _id: CaGu
doi: 10.15479/AT:ISTA:65
file:
- access_level: open_access
checksum: 31a0c01d022721073241a23d192cc37e
content_type: application/zip
creator: system
date_created: 2018-12-12T13:03:18Z
date_updated: 2020-07-14T12:47:03Z
file_id: '5627'
file_name: IST-2017-65-v1+1_D_anc_1.fastq.zip
file_size: 1225959109
relation: main_file
- access_level: open_access
checksum: d8f26f83ce7e7e45436121f9c6cd9b83
content_type: application/zip
creator: system
date_created: 2018-12-12T13:03:30Z
date_updated: 2020-07-14T12:47:03Z
file_id: '5628'
file_name: IST-2017-65-v1+1_D_anc_2.fastq.zip
file_size: 1422656107
relation: main_file
- access_level: open_access
checksum: e07b99bcfe55b5f132ca03b8b48c8cbc
content_type: application/zip
creator: system
date_created: 2018-12-12T13:03:33Z
date_updated: 2020-07-14T12:47:03Z
file_id: '5629'
file_name: IST-2017-65-v1+2_D_A11_1.fastq.zip
file_size: 565014975
relation: main_file
- access_level: open_access
checksum: eda86143d5f32d844b54f8530041e32b
content_type: application/zip
creator: system
date_created: 2018-12-12T13:03:42Z
date_updated: 2020-07-14T12:47:03Z
file_id: '5630'
file_name: IST-2017-65-v1+3_D_A11_2.fastq.zip
file_size: 564490030
relation: main_file
- access_level: open_access
checksum: 906d44f950c1626d9b99f34fbf89cb12
content_type: application/zip
creator: system
date_created: 2018-12-12T13:03:46Z
date_updated: 2020-07-14T12:47:03Z
file_id: '5631'
file_name: IST-2017-65-v1+4_D_C10_1.fastq.zip
file_size: 875430169
relation: main_file
- access_level: open_access
checksum: 6ca14a032a79e0c787106bdf635725c9
content_type: application/zip
creator: system
date_created: 2018-12-12T13:03:54Z
date_updated: 2020-07-14T12:47:03Z
file_id: '5632'
file_name: IST-2017-65-v1+6_D_C08_2.fastq.zip
file_size: 638298201
relation: main_file
- access_level: open_access
checksum: 66ab16ddb5ba64b2e263ef746ebf2893
content_type: application/zip
creator: system
date_created: 2018-12-12T13:04:01Z
date_updated: 2020-07-14T12:47:03Z
file_id: '5633'
file_name: IST-2017-65-v1+5_D_C10_2.fastq.zip
file_size: 894702866
relation: main_file
- access_level: open_access
checksum: 82607970174f8d37773b7d3acc712195
content_type: application/zip
creator: system
date_created: 2018-12-12T13:04:07Z
date_updated: 2020-07-14T12:47:03Z
file_id: '5634'
file_name: IST-2017-65-v1+7_D_C08_1.fastq.zip
file_size: 623648989
relation: main_file
- access_level: open_access
checksum: 225c30b243268c7dda9d6f8327933252
content_type: application/zip
creator: system
date_created: 2018-12-12T13:04:11Z
date_updated: 2020-07-14T12:47:03Z
file_id: '5635'
file_name: IST-2017-65-v1+8_D_D08_1.fastq.zip
file_size: 259359583
relation: main_file
file_date_updated: 2020-07-14T12:47:03Z
has_accepted_license: '1'
license: https://creativecommons.org/publicdomain/zero/1.0/
month: '04'
oa: 1
oa_version: Published Version
publisher: Institute of Science and Technology Austria
related_material:
record:
- id: '704'
relation: research_paper
status: public
status: public
title: Fastq files for "Complex chromosomal neighborhood effects determine the adaptive
potential of a gene under selection"
tmp:
image: /images/cc_0.png
legal_code_url: https://creativecommons.org/publicdomain/zero/1.0/legalcode
name: Creative Commons Public Domain Dedication (CC0 1.0)
short: CC0 (1.0)
type: research_data
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2017'
...