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ANNAT1 annexin D1

AnnAt1, oxy5
Encodes a member of the annexin gene family, a diverse, multigene family of calcium-dependent, membrane-binding proteins. The protein was determined to have peroxidase activity. This activity is thought to be dependent on the presence of post-translational modifications (most likely phosphorylation). The protein was shown to be present as a mixture of monomer and homodimer. The homodimerization seems to be dependent on the presence of Ca2+ or H2O2. The dimerization was prevented by the addition of DTT, ?-mercaptoethanol and TCEP. Annat1 mRNA is expressed in flowers, roots,leaves and stems and is most abundant in stems. mRNA levels are increased in response to oxidative stress. Developmental expression patterns suggest a role in Golgi-mediated polysaccharide secretion. (from NCBI)
Top mentioned proteins: ACID, CAN, Ros, oxidoreductase, HAD
Papers on AnnAt1
SCF E3 ligase PP2-B11 plays a positive role in response to salt stress in Arabidopsis.
New
Zheng et al., China. In J Exp Bot, Aug 2015
AtPP2-B11 could upregulate the expression of annexin1 (AnnAt1) and function as a molecular link between salt stress and reactive oxygen species accumulation in Arabidopsis.
Thylakoid membrane oxidoreductase LTO1/AtVKOR is involved in ABA-mediated response to osmotic stress in Arabidopsis.
New
Wang et al., China. In Physiol Plant, May 2015
Because ROS accumulation in osmotic stress is triggered by abscisic acid (ABA), an ABA-responsive gene, Annexin 1 (AnnAt1), was selected to study the response.
Arabidopsis annexins AnnAt1 and AnnAt4 interact with each other and regulate drought and salt stress responses.
GeneRIF
Park et al., Seoul, South Korea. In Plant Cell Physiol, 2010
AnnAt1 and AnnAt4 interact with each other in a Ca2+-dependent manner and function to regulate responses to drought and salt stress.
Is annexin 1 a multifunctional protein during stress responses?
Roux et al., Austin, United States. In Plant Signal Behav, 2010
We found that for one member of the Arabidopsis thaliana annexin gene family, annexin 1 (AnnAt1), loss-of-function mutants are more sensitive to drought stress and gain-of-function mutants are more tolerant.
A nematode effector protein similar to annexins in host plants.
Davis et al., Raleigh, United States. In J Exp Bot, 2009
Hs4F01 had a 41% predicted amino acid sequence identity to the nex-1 annexin of C. elegans and 33% identity to annexin-1 (annAt1) of Arabidopsis, it contained four conserved domains typical of the annexin family of calcium and phospholipid binding proteins, and it had a predicted signal peptide for secretion that was present in nematode annexins of only Heterodera spp.
The role of annexin 1 in drought stress in Arabidopsis.
GeneRIF
Hennig et al., Warsaw, Poland. In Plant Physiol, 2009
AnnAt1 has a role in oxidative protection.
Potential role of annexin AnnAt1 from Arabidopsis thaliana in pH-mediated cellular response to environmental stimuli.
GeneRIF
Pikula et al., Warsaw, Poland. In Plant Cell Physiol, 2007
The pH-sensitive ion channel activity of AnnAt1 may play a role in intracellular ion homeostasis.
[Participation of annexin At1 in plant response to abiotic stress].
Review
Pikula et al., Warsaw, Poland. In Postepy Biochem, 2006
Annexin At1 of Arabidopsis thaliana (AnnAt1) is one of eight proteins of this family in A. thaliana.
Expression profiling of the Arabidopsis annexin gene family during germination, de-etiolation and abiotic stress.
Roux et al., Austin, United States. In Plant Physiol Biochem, 2006
In Arabidopsis thaliana there are eight different annexins (AnnAt1-8), which range from 29% to 83% in deduced amino acid sequence identity.
Peroxidase activity of annexin 1 from Arabidopsis thaliana.
GeneRIF
Pikula et al., Warsaw, Poland. In Biochem Biophys Res Commun, 2005
recombinant annexin 1 has peroxidase activity.
Immunolocalization and histochemical evidence for the association of two different Arabidopsis annexins with secretion during early seedling growth and development.
Roux et al., Austin, United States. In Planta, 2005
We have used two monospecific Arabidopsis anti-annexin antibodies, raised against divergent 31-mer peptides from AnnAt1 and AnnAt2 and a previously characterized pea anti-annexin p35 antibody, for Western blot and immunolocalization studies in Arabidopsis.
Proteomic identification of annexins, calcium-dependent membrane binding proteins that mediate osmotic stress and abscisic acid signal transduction in Arabidopsis.
GeneRIF
Park et al., Kwangju, South Korea. In Plant Cell, 2004
results collectively suggest that AnnAt1 and AnnAt4 play important roles in osmotic stress and ABA signaling in a Ca2+-dependent manner
Differential expression of members of the annexin multigene family in Arabidopsis.
Roux et al., Austin, United States. In Plant Physiol, 2001
Although in most plant species no more than two annexin genes have been reported to date, seven annexin homologs have been identified in Arabidopsis, Annexin Arabidopsis 1-7 (AnnAt1--AnnAt7).
Oxy5, a novel protein from Arabidopsis thaliana, protects mammalian cells from oxidative stress.
Sabapathy et al., Bengaluru, India. In Int J Biochem Cell Biol, 2001
We have previously shown that an annexin-like protein from Arabidopsis thaliana, termed Oxy5, can replace the obligatory role of OxyR in E. coli.
Isomer differentiation by charge inversion tandem mass spectrometry: an investigation into the structure of the ionic products from an SN(ANRORC) eeaction.
Dolnikowski, Boston, United States. In J Am Soc Mass Spectrom, 1992
Negative ion fast atom bombardment and negative ion chemical ionization tandem mass spectrometry combined with charge inversion reactions are used to confirm that 2-chloro-5nitropyridine reacts with the hydroxide ion by an SN(ANRORC) mechanism in solution to form a ring-opened C5H3N2O 3 (-) anion that has the structure of the (M-H)(-) anion of 2-nitro-4-cyano-2-butenal. The addition of excess hydroxide ion forms the expected 2-oxy5-nitropyridine anion.
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