Gene/Protein
Disease
Symptom
Drug
Enzyme
Compound
Pivot Concepts:
Gene/Protein
Disease
Symptom
Drug
Enzyme
Compound
Target Concepts:
Gene/Protein
Disease
Symptom
Drug
Enzyme
Compound
Query: UMLS:C1832526 (
PCC
)
5,967
document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)
In Synechococcus sp. strain
PCC
6301, ribosomal RNA (rRNA) synthesis occurs at specific times during the growth cycle in the light. When light-grown cultures are placed in the dark, rRNA synthesis and cell division stop abruptly. It is shown here that a partially purified DNA-binding protein binds downstream of the rRNA operon (rrnA) P1 promoter in the light but not in the dark. When the
DNA binding protein
is added to in vitro transcription assays, run-off transcripts are produced in the light but not, under dark conditions. The results indicate that a light-activated regulatory molecule is involved in stimulating rRNA synthesis during the normal cell growth cycle of Synechococcus in the light.
...
PMID:A light-activated DNA-binding factor stimulates transcription of the rrnA operon in the cyanobacterium Synechococcus sp. PCC 6301. 982 29
The present study provides data on the insertion of an extra copy of phytochelatin synthase (alr0975) in Anabaena sp.
PCC
7120. The recombinant strain (AnFPN-pcs) compared to wild type showed approximately 22.3% increase in growth rate under UV-B, NaCl, heat, CuCl
2
, carbofuran, and CdCl
2
. It also registered 2.25-fold enhanced nitrogenase activity and 5-fold higher phytochelatin production. A comparison of the protein profile of wild type with the recombinant strain revealed that recombinant strain accumulated proteins belonging to the following categories: (i) detoxification (nutrient stress induced
DNA binding protein
, Mn-SOD, Alr0946 (CalA)), (ii) protein folding and modification (molecular chaperone DnaK, FKBP-type peptidyl-prolyl cis-trans isomerase), (iii) nucleotide and amino acid biosynthesis (dihydroorotase and Ketol-acid reductoisomerase), (iv) photosynthesis and respiration (coproporphyrinogen III oxidase, phycocyanin alpha chain, ferredoxin-NADP
+
reductase), and (v) transport (sugar transport ATP-binding protein). Thus, it can be concluded that, above category proteins with their respective role in scavenging reactive oxygen species, proper folding of unfolded proteins, and protection of protein from degradation, sustained carbon fixation and energy pool and active transport of sugar together conceivably help the recombinant cyanobacterium (AnFPN-pcs) to cope with abiotic stress employed in the present study. Such recombinant strains have potential for future use as biofertilizer.
...
PMID:Overexpression of phytochelatin synthase (pcs) enhances abiotic stress tolerance by altering the proteome of transformed Anabaena sp. PCC 7120. 2800 Jan 19
