1.11.1.11: L-ascorbate peroxidase This is an abbreviated version! For detailed information about L-ascorbate peroxidase, go to the full flat file .
Reaction
2 L-ascorbate
+
H2O2 +
2 H+
=
2 monodehydroascorbate
+
2 H2O
Synonyms Am-pAPX1, APEX2, APOX, APX, APX 1, APX 2, APX1, APX2, APX3, APX4, APX5, APX6, APX7, APx8, APXS, APXT, ascorbate peroxidase, ascorbate peroxidase 1, ascorbate peroxidase 2, ascorbate peroxidase 3, ascorbate peroxidase 4, ascorbate peroxidase 5, ascorbate peroxidase 6, ascorbate peroxidase 7, ascorbate peroxidase 8, ascorbate peroxidase6, ascorbic acid peroxidase, At1g07890, AT1G77490, AT3G09640, AT4G08390, AT4G32320, AT4G35000, AT4G35970, AtAPx08, AtAPX1, AtAPX2, AtAPX3, AtAPX5, AtAPX6, AtSAPX, AtstAPX, AtTAPX, cAPX, cAPX 2, CmstAPX, CrAPX4, CreAPX1, CreAPX2, CreAPX4, CreAPXheme, CsAPX1, cytoplasmic ascorbate peroxidase 1, cytosolic ascorbate peroxidase, GhAPX1, glyoxysomal APX, HvAPX1, L-ascorbate peroxidase, L-ascorbate peroxidase 3, L-ascorbate peroxidase 5, L-ascorbate peroxidase 6, L-ascorbate peroxidase, heme-containing, L-ascorbic acid peroxidase, L-ascorbic acid-specific peroxidase, LmAPX, MaAPX1, OsAPx1, OsAPx2, OsAPx3, OsAPx4, OsAPx5, OsAPx6, OsAPx7, OsAPx8, OsAPXa, OsAPXb, pAPX, Pavirv00022559m, peroxidase, ascorbate, peroxisomal ascorbate peroxidase, PgAPX1, PHYPA_001206, PHYPA_001884, PHYPA_021776, PHYPA_024580, PHYPA_024582, Potri.002G081900, Potri.004G174500, Potri.005G112200, Potri.005G161900, Potri.005G179200, Potri.006G089000, Potri.006G132200, Potri.006G254500, Potri.009G015400, Potri.009G134100, Potri.016G084800, PpAPX, PpAPX-S, PpAPX2, PpAPX2.1, PpAPX2.2, PpAPX3, PpAPX6-related, PtAPX-S.1, PtAPX-S.2, PtAPX-TL29, PtAPX.3, PtAPX1.1, PtAPX1.2, PtAPX2, PtAPX3, PtAPX5, PtAPX5-like, PtAPX6 related, PtotAPX, RcAPX, sAPX, stromal APX, stromal ascorbate peroxidase, stromal ascorbate peroxidases, TaAPX, tAPX, thylakoid ascorbate peroxidase, thylakoid membrane-bound ascorbate peroxidases, thylakoid-bound ascorbate peroxidase
ECTree
Localization
Localization on EC 1.11.1.11 - L-ascorbate peroxidase
Please wait a moment until all data is loaded. This message will disappear when all data is loaded.
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
-
-
brenda
enzyme is associated with plasma membrane
brenda
membrane-bound
brenda
-
-
brenda
-
-
brenda
-
brenda
-
brenda
stroma
brenda
thylakoid-bound
brenda
stromal ascorbate peroxidase is particularly important for photoprotection during the early greening process. In mature leaves, thylakoid-bound enzyme and stromal enzyme are functionally redundant, and crucial upon sudden onset of oxidative stress. The chloroplast ascorbate peroxidases contribute to chloroplast retrograde signalling pathways upon slight fluctuations in the accumulation of H2O2 in chloroplasts
brenda
stromal enzyme is particularly important for photoprotection during the early greening process. In mature leaves, thylakoid-bound enzyme and stromal enzyme are functionally redundant, and crucial upon sudden onset of oxidative stress. The chloroplast ascorbate peroxidases contribute to chloroplast retrograde signalling pathways upon slight fluctuations in the accumulation of H2O2 in chloroplasts
brenda
-
thylakoid-bound
brenda
-
brenda
-
-
brenda
-
brenda
-
-
brenda
-
-
brenda
-
brenda
stroma
brenda
-
stroma
brenda
-
brenda
-
approximately 46% of the APX activity is associated with intact chloroplasts
brenda
-
brenda
-
significant increase of stromal activity and decrease of thylakoidal activity in response to 0.07-0.11 mM NaCl with concommittant increase in H2O2 content of chloroplasts and reduction of ascorbate level
brenda
-
-
brenda
-
brenda
-
two APX isoforms, one thylakoid-bound and one stromal. APXs in the chloroplast is a highly sensitive site of antioxidant systems under Cd stress, and the inactivation of APX could be mainly responsible for oxidative modification to Rubisco and subsequent decrease in its activity
brenda
stromal
brenda
thylakoidal
brenda
-
APX6, APX7
brenda
-
-
brenda
-
brenda
-
-
brenda
-
-
brenda
Chlamydomonas sp.
-
brenda
-
brenda
-
-
brenda
-
-
brenda
-
-
brenda
-
-
brenda
-
brenda
-
-
brenda
-
brenda
-
brenda
-
-
-
brenda
-
-
brenda
-
-
brenda
-
-
brenda
-
brenda
-
brenda
-
-
brenda
-
-
brenda
-
-
brenda
-
APX becomes mature in the cytosol after processing of the precursor
brenda
-
-
brenda
-
-
brenda
-
-
brenda
-
brenda
-
brenda
-
presence of two major non-plastid isozymes
brenda
-
-
brenda
-
brenda
-
brenda
-
brenda
-
-
brenda
-
-
brenda
-
brenda
-
-
brenda
-
brenda
-
brenda
-
brenda
-
brenda
-
54% of the total APX activity is presumed to be cytosolic APX
brenda
-
brenda
-
-
brenda
-
brenda
-
-
brenda
-
brenda
-
brenda
-
brenda
-
-
brenda
-
-
brenda
-
brenda
-
APX1, APX2, APX3
brenda
-
-
brenda
-
-
brenda
-
-
brenda
-
-
brenda
-
brenda
-
brenda
-
brenda
-
-
brenda
-
-
brenda
-
-
brenda
-
-
brenda
-
-
brenda
-
-
-
brenda
-
brenda
-
brenda
-
-
brenda
-
-
-
brenda
-
brenda
-
brenda
-
brenda
-
inside, either bound to the inner membrane or in the matrix
brenda
enzyme is closely associated with mitochondrial membranes
brenda
-
brenda
-
brenda
-
-
brenda
-
brenda
-
brenda
-
brenda
-
brenda
-
brenda
-
APX4, APX5
brenda
-
-
brenda
-
brenda
additional information
Blastochritidia sp. P57
-
subcellular localization analysis
-
brenda
additional information
-
subcellular localization analysis
-
brenda
additional information
-
not in mitochondria, chloroplasts, microsomes
-
brenda
additional information
subcellular localization analysis
-
brenda
additional information
-
not localized in plastids
-
brenda
additional information
-
the doublet in cytosolic enzyme activity observed in the native-PAGE of soybean leaf and root nodule extracts could represent either the products of two cytosolic soybean enzyme genes or a single gene product with some post-translational modification, the cultivar Roanoke has a single isozyme
-
brenda
additional information
-
subcellular localization analysis
-
brenda
additional information
-
subcellular localization analysis
-
brenda
additional information
APX is comprised of different isoenzymes, which are encoded by a multi-gene family and found in many compartments of cell
-
brenda
additional information
APX is comprised of different isoenzymes, which are encoded by a multi-gene family and found in many compartments of cell
-
brenda
additional information
APX is comprised of different isoenzymes, which are encoded by a multi-gene family and found in many compartments of cell
-
brenda
additional information
APX is comprised of different isoenzymes, which are encoded by a multi-gene family and found in many compartments of cell
-
brenda
additional information
APX is comprised of different isoenzymes, which are encoded by a multi-gene family and found in many compartments of cell
-
brenda
additional information
APX is comprised of different isoenzymes, which are encoded by a multi-gene family and found in many compartments of cell
-
brenda
additional information
APX is comprised of different isoenzymes, which are encoded by a multi-gene family and found in many compartments of cell
-
brenda
additional information
APX is comprised of different isoenzymes, which are encoded by a multi-gene family and found in many compartments of cell
-
brenda
additional information
APX is comprised of different isozymes, which are encoded by a multi-gene family and found in many compartments of cell
-
brenda
additional information
APX is comprised of different isozymes, which are encoded by a multi-gene family and found in many compartments of cell
-
brenda
additional information
APX is comprised of different isozymes, which are encoded by a multi-gene family and found in many compartments of cell
-
brenda
additional information
APX is comprised of different isozymes, which are encoded by a multi-gene family and found in many compartments of cell
-
brenda
additional information
APX is comprised of different isozymes, which are encoded by a multi-gene family and found in many compartments of cell
-
brenda
additional information
APX is comprised of different isozymes, which are encoded by a multi-gene family and found in many compartments of cell
-
brenda
additional information
APX is comprised of different isozymes, which are encoded by a multi-gene family and found in many compartments of cell
-
brenda
additional information
APX is comprised of different isozymes, which are encoded by a multi-gene family and found in many compartments of cell
-
brenda
additional information
-
transcriptome analysis during light-induced chloroplast development, detailed overview
-
brenda
additional information
-
subcellular localization analysis
-
brenda