Paper · 4134797

Electron microscopical and cultural features of Neisseria meningitidis competence variants.

Froholm LO and 2 others. Acta Pathol Microbiol Scand B Microbiol Immunol, 1973. Cited by 55 papers, by iCite.

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ConductScience Library. Electron microscopical and cultural features of Neisseria meningitidis competence variants. Papers, record 4134797. Release papers-2026-11-12-0.1.0, 12 Nov 2026. https://conductscience.org/library/papers/4134797

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Paper

PubMed's record of the paper, with iCite's citation figures. No abstract is shown.

Title: Electron microscopical and cultural features of Neisseria meningitidis competence variants.; PubMed
Journal: Acta Pathol Microbiol Scand B Microbiol Immunol; PubMed
Year: 1973; PubMed
Publication types: Journal Article; PubMed
PubMed: https://pubmed.ncbi.nlm.nih.gov/4134797/; PubMed
DOI: https://doi.org/10.1111/j.1699-0463.1973.tb02238.x; PubMed
The journal: https://conductscience.org/library/journal-index/7508470; PubMed
Citations, by iCite: 55; iCite
Relative citation ratio, by iCite: 1.47; iCite
Revised in PubMed: 2019-10-30; PubMed

Authors3

The authors in the order PubMed's record lists them, with the ORCID iDs it states.

Order	Author	Forename
1	Froholm LO	L O
2	Jyssum K	K
3	Bovre K	K

Source PubMed

Topics8

NLM's MeSH indexing of the paper, its major topics first.

MeSH term	Major
Chromosomes, Bacterial	Major topic
DNA, Bacterial	Major topic
Neisseria meningitidis	Major topic
Transformation, Genetic	Major topic
Culture Media
Microscopy, Electron
Mutation
Staining and Labeling

Source PubMed

Grants0

Each grant PubMed's record writes, matched to the NIH project NIH's grant and paper links name for this paper, and each of those links the record does not write.

None in this release.

Trials0

The trials whose ClinicalTrials.gov record lists the paper, and the trial numbers the paper's PubMed record names.

None in this release.

Comments and corrections0

PubMed's comments and corrections, NLM's own indexing: retractions first, then expressions of concern, errata and updates, and comments last.

None in this release.

References0

The papers the reference list in PubMed's record names, those in our copy of PubMed, in the list's order.

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Cited by24

The papers in our copy of PubMed whose reference list names this one, newest first. iCite, which reads more sources, counts 55 citations.

PMID	Title	Journal	Year	In Papers	Source
35,612,326	Landmark Discoveries and Recent Advances in Type IV Pilus Research.	Microbiol Mol Biol Rev	2022	https://conductscience.org/library/papers/35612326	PubMed
28,696,187	DprA from Neisseria meningitidis: properties and role in natural competence for transformation.	Microbiology (Reading)	2017	https://conductscience.org/library/papers/28696187	PubMed
26,248,334	The Inner Membrane Protein PilG Interacts with DNA and the Secretin PilQ in Transformation.	PLoS One	2015	https://conductscience.org/library/papers/26248334	PubMed
22,768,309	Restriction and sequence alterations affect DNA uptake sequence-dependent transformation in Neisseria meningitidis.	PLoS One	2012	https://conductscience.org/library/papers/22768309	PubMed
21,731,720	N. elongata produces type IV pili that mediate interspecies gene transfer with N. gonorrhoeae.	PLoS One	2011	https://conductscience.org/library/papers/21731720	PubMed
21,330,432	Structure-function relationships of the competence lipoprotein ComL and SSB in meningococcal transformation.	Microbiology (Reading)	2011	https://conductscience.org/library/papers/21330432	PubMed
21,304,951	Structural characterization of outer membrane components of the type IV pili system in pathogenic Neisseria.	PLoS One	2011	https://conductscience.org/library/papers/21304951	PubMed
19,246,756	Identification of neisserial DNA binding components.	Microbiology (Reading)	2009	https://conductscience.org/library/papers/19246756	PubMed
17,616,599	Purification and three-dimensional electron microscopy structure of the Neisseria meningitidis type IV pilus biogenesis protein PilG.	J Bacteriol	2007	https://conductscience.org/library/papers/17616599	PubMed
17,464,074	The outer membrane secretin PilQ from Neisseria meningitidis binds DNA.	Microbiology (Reading)	2007	https://conductscience.org/library/papers/17464074	PubMed

1 to 10 of 24

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Genes0

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None in this release.

Drugs0

The drugs whose trials, in the Pipelines release, list the paper.

None in this release.

Data0

The data bank entries PubMed's record names. Trial numbers are under Trials.

None in this release.

Data dates

The date of each source this release read.

PubMed: 2026-11-06; PubMed
iCite: 2026-11-05; iCite
PMC's ID file: 2026-11-05; PMC's ID file
NIH RePORTER's grant and paper links: 2026-11-01; NIH RePORTER's grant and paper links
Trials: 2026-11-12
Gene search: 2026-11-11
Pipelines: 2026-09-18

Sources 11

ChEMBL, through Open TargetsCC BY-SA 3.0
ClinicalTrials.govNo license stated
HGNCCC0
iCiteCC BY 4.0
NCBI GenePublic domain (US government)
NIH RePORTER's grant and paper linksPublic domain
Open TargetsCC0 1.0
PMC's ID filePublic domain (US government)
PubMedNLM's terms
PubTator 3Public domain
UniProtCC BY 4.0

Each source's terms

ChEMBL, through Open TargetsCC BY-SA 3.0, for the parts from ChEMBL. Read on 8 Nov 2026 at https://platform-docs.opentargets.org/licence
ClinicalTrials.govnone stated
HGNCCC0: https://www.genenames.org/about/license/
iCiteCC BY 4.0
NCBI GeneNone named for the file. NCBI says information created by or for the US government on its site is in the public domain, and asks that NLM be acknowledged: https://www.ncbi.nlm.nih.gov/home/about/policies/
NIH RePORTER's grant and paper linksPublic domain (NIH RePORTER)
Open TargetsCC0 1.0. Open Targets asks that users cite its latest paper: Buniello et al. 2025, Open Targets Platform: facilitating therapeutic hypotheses building in drug discovery, Nucleic Acids Research 53(D1):D1467, PMID 39657122. Read on 8 Nov 2026 at https://platform-docs.opentargets.org/licence
PMC's ID fileNone named for the file. NCBI says information created by or for the US government on its site is in the public domain, and asks that NLM be acknowledged: https://www.ncbi.nlm.nih.gov/home/about/policies/
PubMedNLM's terms
PubTator 3Public domain
UniProtCC BY 4.0. UniProt's licence file: "All databases and documents in the UniProt FTP directory may be copied and redistributed freely, without advance permission, provided that this copyright statement is reproduced with each copy." UniProt asks that users cite its latest paper: The UniProt Consortium, UniProt: the Universal Protein Knowledgebase in 2025, Nucleic Acids Research 53:D609-D617, https://doi.org/10.1093/nar/gkae1010. Read on 9 Nov 2026 at https://www.uniprot.org/help/license

ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.

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