Evidence map›Paper›PMID 29124143›Full record

ArticleBiochemistry and biophysics reports2015

Effects of deficient of the Hoogsteen base-pairs on the G-quadruplex stabilization and binding mode of a cationic porphyrin.

Jihye Moon, Ji Hoon Han, Da Young Kim, Maeng-Joon Jung, Seog K Kim

Open access · goldAbstract read
In one paragraph

Article in Biochemistry and biophysics reports, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
0.8field-weighted citation impact, top 28% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

5 citing papers in PubMed, 22 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 2 institutions in 1 country.

Jihye MoonDepartment of Chemistry, Yeungnam University, Dae-Dong, Gyeongsan City, Gyeong-buk 712-749, Republic of Korea.
Ji Hoon HanDepartment of Chemistry, Yeungnam University, Dae-Dong, Gyeongsan City, Gyeong-buk 712-749, Republic of Korea.
Da Young KimDepartment of Chemistry, Yeungnam University, Dae-Dong, Gyeongsan City, Gyeong-buk 712-749, Republic of Korea.
Maeng-Joon JungDepartment of Chemistry, Kyungpook National University, Daegu 702-701, Republic of Korea.
Seog K KimDepartment of Chemistry, Yeungnam University, Dae-Dong, Gyeongsan City, Gyeong-buk 712-749, Republic of Korea.
Yeungnam University · KRKyungpook National University · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIn stabilization of the G-quadruplex, formation of a Hoogsteen base-pair between the guanine (G) bases is essential. However, the contribution of each Hoogsteen base-pair at different positions to whole stability of the G-quadruplex has not been known. In this study, the effect of a deficiency of the Hoogsteen type hydrogen bond in the G-quadruplex stability was investigated. Spectral properties of

methodsThe thermal stability of the thrombin-binding DNA aptamer 5'G

resultsThe transition from the G-quadruplex to a single stranded form was endothermic and induced by an increase in entropy. The order in stability was 0>8>6>2>5>1, where the numbers denote the position of the replacement and 0 represents no replacements of the G base, suggesting the significant contribution of the G

conclusionsReplacement of a G base with an I base resulted in destabilization of the G-quadruplex. The missing hydrogen bond at position 1 destabilized the G-quadruplex most efficiently. TMPyP binds near the I base-replaced location namely, the side of the G-quadruplex. GENERAL SIGNIFICANCE: The Hoogsteen base-pairing is confirmed to be essential in stabilization of G-quadruplex. When G is replaced with I, the latter base is mobile to interact with cationic porphyrin.

Indexed as

Cationic porphyrinCircular dichroismDNAG-quadruplexHoogsteen base pairingThermal melting curve

Identifiers

PMID29124143
PMCPMC5668627
OpenAlexW2020506780

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.