Leaf Senescence DataBase

Basic information

Locus name

AT1G44446

Alias

CAO

Organism

Arabidopsis thaliana

Taxonomic identifier

[NCBI]

Function category

Chlorophyll biosynthesis

Effect for Senescence

delay

Gene Description

Encodes chlorophyllide a oxygenase which converts chlorophyllide a to chlorophyllide b by catalyzing two successive hydroxylations at the 7-methyl group of chlorophyllide a.

Evidence

Genetic evidence:Transgene [Ref 1]

References

1: Sakuraba Y, Balazadeh S, Tanaka R, Mueller-Roeber B, Tanaka A
Overproduction of chl B retards senescence through transcriptional reprogramming in Arabidopsis.
Plant Cell Physiol. 2012 Mar;53(3):505-17

Gene Ontology

biological process	oxidation-reduction process
molecular function	2 iron, 2 sulfur cluster binding chlorophyllide a oxygenase [overall] activity iron ion binding oxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen oxidoreductase activity

Pathway

KEGG	map00860 (EC 1.13.12.14)
MetaCyc	PWY-5068

Sequence

Mutant information

Mutant name

BCG

Mutant/Transgenic

transgenic

Ecotype

Col-0

Mutagenesis type

transgene

Cross Link

Database	Entry ID	E-value	Start	End	InterPro ID	Description
Coils	Coil	NA	123	151	No hit	NA
PANTHER	PTHR21266	1.7E-104	190	535	No hit	NA
SUPERFAMILY	SSF50022	7.3E-34	217	326	IPR017941	Rieske [2Fe-2S] iron-sulphur domain
Pfam	PF00355	1.1E-19	221	306	IPR017941	Rieske [2Fe-2S] iron-sulphur domain
ProSiteProfiles	PS51296	30.6	221	321	IPR017941	Rieske [2Fe-2S] iron-sulphur domain
ProSitePatterns	PS00570	NA	262	284	IPR015881	Aromatic-ring-hydroxylating dioxygenase, 2Fe-2S-binding site
SUPERFAMILY	SSF55961	2.6E-23	317	523	No hit	NA
Pfam	PF08417	8.6E-23	408	506	IPR013626	Pheophorbide a oxygenase

Subcellular Localization

Localization 1
	Localization	chloroplast
	Evidence	Localization with GFP-fusion protein (GFP:cDNA)
	Pubmed ID	10737809

Localization 2
	Localization	plastid
	Evidence	SUBAcon
	Pubmed ID	23180787