NDLI: A TolC-Like Protein Is Required for Heterocyst Development in Anabaena sp. Strain PCC 7120▿ †

Content Provider	PubMed Central
Author	Moslavac, Suncana Nicolaisen, Kerstin Oliver, Mirus Al, Dehni Fadi Pernil, Rafael Flores, Enrique Iris, Maldener Schleiff, Enrico
Abstract	The filamentous cyanobacterium Anabaena sp. strain PCC 7120 forms heterocysts in a semiregular pattern when it is grown on N2 as the sole nitrogen source. The transition from vegetative cells to heterocysts requires marked metabolic and morphological changes. We show that a trimeric pore-forming outer membrane β-barrel protein belonging to the TolC family, Alr2887, is up-regulated in developing heterocysts and is essential for diazotrophic growth. Mutants defective in Alr2887 did not form the specific glycolipid layer of the heterocyst cell wall, which is necessary to protect nitrogenase from external oxygen. Comparison of the glycolipid contents of wild-type and mutant cells indicated that the protein is not involved in the synthesis of glycolipids but might instead serve as an exporter for the glycolipid moieties or enzymes involved in glycolipid attachment. We propose that Alr2887, together with an ABC transporter like DevBCA, is part of a protein export system essential for assembly of the heterocyst glycolipid layer. We designate the alr2887 gene hgdD (heterocyst glycolipid deposition protein).
Related Links	http://dx.doi.org/10.1128/jb.00750-07
Ending Page	7895
Page Count	9
Starting Page	7887
File Format	PDF
ISSN	00219193
e-ISSN	10985530
Journal	Journal of Bacteriology
Issue Number	21
Volume Number	189
Language	English
Publisher	American Society for Microbiology (ASM)
Publisher Date	2007-11-01
Access Restriction	Open
Rights Holder	American Society for Microbiology (ASM)
Subject Keyword	Molecular Biology Microbiology Research in Higher Education
Content Type	Text
Resource Type	Article
Subject	Molecular Biology Microbiology

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

HcwA, an Autolysin, Is Required for Heterocyst Maturation in Anabaena sp. Strain PCC 7120

Anabaena sp. strain PCC 7120 ntcA gene required for growth on nitrate and heterocyst development.

Anabaena sp. Strain PCC 7120 Gene devH Is Required for Synthesis of the Heterocyst Glycolipid Layer

FraH Is Required for Reorganization of Intracellular Membranes during Heterocyst Differentiation in Anabaena sp. Strain PCC 7120 ▿ †

Signal Transduction Genes Required for Heterocyst Maturation in Anabaena sp. Strain PCC 7120

The sigE Gene Is Required for Normal Expression of Heterocyst-Specific Genes in Anabaena sp. Strain PCC 7120 ▿ †

Anabaena sp. Strain PCC 7120 hetY Gene Influences Heterocyst Development

The hglK gene is required for localization of heterocyst-specific glycolipids in the cyanobacterium Anabaena sp. strain PCC 7120.

Characterization of devH, a Gene Encoding a Putative DNA Binding Protein Required for Heterocyst Function in Anabaena sp. Strain PCC 7120

A TolC-Like Protein Is Required for Heterocyst Development in Anabaena sp. Strain PCC 7120▿ †

Similar Documents

HcwA, an Autolysin, Is Required for Heterocyst Maturation in Anabaena sp. Strain PCC 7120

Anabaena sp. strain PCC 7120 ntcA gene required for growth on nitrate and heterocyst development.

Anabaena sp. Strain PCC 7120 Gene devH Is Required for Synthesis of the Heterocyst Glycolipid Layer

FraH Is Required for Reorganization of Intracellular Membranes during Heterocyst Differentiation in Anabaena sp. Strain PCC 7120 ▿ †

Signal Transduction Genes Required for Heterocyst Maturation in Anabaena sp. Strain PCC 7120

The sigE Gene Is Required for Normal Expression of Heterocyst-Specific Genes in Anabaena sp. Strain PCC 7120 ▿ †

Anabaena sp. Strain PCC 7120 hetY Gene Influences Heterocyst Development

The hglK gene is required for localization of heterocyst-specific glycolipids in the cyanobacterium Anabaena sp. strain PCC 7120.

Characterization of devH, a Gene Encoding a Putative DNA Binding Protein Required for Heterocyst Function in Anabaena sp. Strain PCC 7120

A TolC-Like Protein Is Required for Heterocyst Development in Anabaena sp. Strain PCC 7120▿ †