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Heterocyst Pattern Formation Controlled by a Diffusible Peptide
23/23 checkable references clean · checked 2026-07-23
Every reference with a DOI in the deposited reference list resolved to a known work in Crossref or DataCite at the dated check, and none carried a retraction, withdrawal, or removal notice.
16 without a DOI — not checked. A reference deposited without a DOI is never matched by title or guessed at; it stays outside the checked set, and this line discloses that.
The 23 checked references that resolve
resolves10.1111/j.1574-6968.1996.tb08185.x
A<i>Myxococcus xanthus</i>cell density-sensing system required for multicellular development
resolves10.1046/j.1365-2958.1996.01540.x
<b>An oligopeptide permease responsible for the import of an extracellular signal governing aerial mycelium formation in <i>Streptomyces coelicolor</i></b>
resolves10.1016/S0092-8674(00)80277-9
An Exported Peptide Functions Intracellularly to Contribute to Cell Density Signaling in B. subtilis
resolves10.1111/j.1574-6968.1997.tb10390.x
Suppression of heterocyst differentiation in Anabaena PCC 7120 by a cosmid carrying wild-type genes encoding enzymes for fatty acid synthesis
resolves10.1128/jb.178.13.3893-3898.1996
Nitrate reductase activity and heterocyst suppression on nitrate in Anabaena sp. strain PCC 7120 require moeA
resolves10.1128/jb.179.22.6971-6978.1997
hetC, a gene coding for a protein similar to bacterial ABC protein exporters, is involved in early regulation of heterocyst differentiation in Anabaena sp. strain PCC 7120
resolves10.1074/jbc.270.1.99
A Molecular Genetic Approach for the Identification of Essential Residues in Human Glutathione S-Transferase Function in Escherichia coli
resolves10.1128/jb.179.6.1998-2005.1997
Reduction of conjugal transfer efficiency by three restriction activities of Anabaena sp. strain PCC 7120
resolves10.1128/jb.171.7.3973-3981.1989
Differential expression of members of a cyanobacterial psbA gene family in response to light
resolves10.1046/j.1365-2958.1997.4251782.x
Quorum sensing by peptide pheromones and two‐component signal‐transduction systems in Gram‐positive bacteria
resolves10.1073/pnas.93.4.1549
Cell-cell communication regulates the effects of protein aspartate phosphatases on the phosphorelay controlling development in Bacillus subtilis.
resolves10.1111/j.1365-2958.1993.tb01670.x
Spatial expression and autoregulation of <i>hetR</i>, a gene involved in the control of heterocyst development in <i>Anabaena</i>
resolves10.1128/jb.179.1.267-271.1997
Anabaena sp. strain PCC 7120 responds to nitrogen deprivation with a cascade-like sequence of transcriptional activations
resolves10.1242/dev.109.3.509
Lateral inhibition and the development of the sensory bristles of the adult peripheral nervous system of <i>Drosophila</i>
resolves10.1128/jb.176.15.4473-4482.1994
Anabaena sp. strain PCC 7120 ntcA gene required for growth on nitrate and heterocyst development
resolves10.1046/j.1365-2958.1997.3081671.x
Cell‐type specificity of the Anabaena fdxN‐element rearrangement requires <i>xisH</i> and <i>xisl</i>
resolves10.1101/gad.8.1.74
Anabaena xisF gene encodes a developmentally regulated site-specific recombinase.
The 16 references without a DOI — listed, not checked
no DOI — not checkedpAM1697 contains patS that was amplified by PCR and cloned into pPet1 (W. J. Buikema and R. Haselkorn personal communication) which contains the petE promoter. pAM1714 contains the P petE - patS fragment from pAM1697 in pAM504 (19). pAM1716 contains patS in the reverse orientation. Two independent clones for each construct were tested and they produced similar results.
no DOI — not checkedpAM1882 DNA (1 μg) was incubated in a final volume of 100 μl of 0.4 M hydroxylamine-HCl in buffer [50 mM sodium phosphate (pH 6.0) and 0.9 mM EDTA] at 65°C for 60 min [
no DOI — not checked]. After dialyzing the DNA against TE buffer [10 mM tris-HCl (pH 8.0) and 1 mM EDTA] overnight 2 μl was used to transform Escherichia coli conjugal donor strain AM1359 (strain DH10B containing pRL623 and pRL443) [
no DOI — not checked]. Several thousand transformant colonies were collected and used for conjugation with Anabaena PCC 7120. After incubating for 10 days on BG-11 0 plates containing neomycin (25 μg/ml) the four best-growing Het + exconjugants were selected for plasmid isolation and DNA sequencing.
no DOI — not checkedIn-frame (pAM1899) and out-of-frame (pAM1860) patS - lacZ translational fusions were made by ligating patS fragments to lacZ. Anabaena PCC 7120 exconjugants AMC446 (pAM1899) and AMC448 (pAM1860) were induced in BG-11 0 for 0 6 14 18 27 and 48 hours and harvested for β-Gal assays. Cells were lysed and assayed as previously described [
no DOI — not checked] except that the filaments were frozen at –85°C before processing. β-Gal was measured and expressed as specific activity (nanomoles of o -nitrophenyl-β- d -galactopyranoside per minute per milligram of protein).
no DOI — not checkedH.-S. Yoon and J. W. Golden data not shown.
no DOI — not checkedPerego M., ibid. 94, 8612 (1997).
no DOI — not checkedSingle-letter abbreviations for the amino acid residues are as follows: A Ala; C Cys; D Asp; E Glu; F Phe; G Gly; H His; I Ile; K Lys; L Leu; M Met; N Asn; P Pro; Q Gln; R Arg; S Ser; T Thr; V Val; W Trp; and Y Tyr.
no DOI — not checkedAMC451 was made by double recombination with suicide plasmid pAM1702 (Fig. 2A) as previously described (19). pAM1702 contains patS -flanking sequences and an Ω Sp r /Sm r cassette (conferring spectinomycin and streptomycin resistance) in sacB -containing suicide vector pRL278 [
no DOI — not checked]. The Ω Sp r /Sm r cassette replaces a 381-bp Eco RV–Sca I fragment containing the entire patS gene. Four independent isolates with identical phenotypes were obtained after selection on media containing sucrose (5%) spectinomycin (2 μg/ml) and streptomycin (2 μg/ml). The structure of the deletion was confirmed by Southern (DNA) blot analysis.
no DOI — not checkedT. S. Ramasubramanian T.-F. Wei J. W. Golden ibid. p. 1214.
no DOI — not checkedGolden J. W., Whorff L. L., Wiest D. R., ibid. 173, 7098 (1991).
no DOI — not checkedDetails of plasmid constructions are available from the authors. Subclones were from pAM1035 which contains patS on a 3.3-kb Bam HI–Cla I fragment that was cloned into the same sites of pBluescript II KS(–). pAM1882 pAM1687 and pAM1835 contain restriction fragments in the conjugal shuttle vector pAM504 (19). pAM1685 contains patS that was amplified by PCR and cloned into pAM504. pAM1686 contains the same insert cloned into pAM505 (identical to pAM504 except that the Bam HI and Sac I sites are reversed). pAM1691 and pAM1695 contain patS cloned into pAM743 which contains the Anabaena PCC 7120 glnA promoter from pAM658 (20) in pAM504. The sequences of all inserts that were generated by PCR were confirmed after subcloning.
no DOI — not checkedThe patS - gfp transcriptional fusion in pAM1951 was made by first cloning a fragment containing 724 bp upstream of patS into pKEN2-GFPmut2 (17) to make pAM1877. A fragment containing patS - gfp from pAM1877 was ligated into pAM505 to make pAM1951. gfp from pKEN2-GFPmut2 was cloned into pAM542 (20) which contains P rbcL on a shuttle vector to make pAM1954. pAM1956 contains promoterless gfp from pKEN2-GFPmut2 inserted into pAM505.
no DOI — not checkedWe thank L. Whorff for contributions to the initial analysis of cosmid 8E11; A. Ott for technical assistance; and W. J. Buikema J. Elhai S. S. Golden M. D. Manson and members of our laboratory for critically reading the manuscript. Supported in part by NIH grant GM36890.
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