P85431 (PER5_CYCRE) Reviewed, UniProtKB/Swiss-Prot

Names and origin

Protein names	Recommended name: Peroxidase 5 EC=1.11.1.7
Organism	Cycas revoluta (Sago palm)
Taxonomic identifier	3396 [NCBI]
Taxonomic lineage	Eukaryota › Viridiplantae › Streptophyta › Embryophyta › Tracheophyta › Spermatophyta › Cycadophyta › Cycadales › Cycadaceae › Cycas

Protein attributes

Sequence length	22 AA.
Sequence status	Fragment.
Protein existence	Evidence at protein level

General annotation (Comments)

Function	Removal of H2O2, oxidation of toxic reductants, biosynthesis and degradation of lignin, suberization, auxin catabolism, response to environmental stresses such as wounding, pathogen attack and oxidative stress. These functions might be dependent on each isozyme/isoform in each plant tissue.
Catalytic activity	2 phenolic donor + H2O2 = 2 phenoxyl radical of the donor + 2 H2O.
Cofactor	Binds 1 heme B (iron-protoporphyrin IX) group per subunit By similarity. UniProtKB Q39034 Binds 2 calcium ions per subunit By similarity. UniProtKB Q39034
Subcellular location	Secreted By similarity. Secreted › cell wall Ref.1 UniProtKB P84516.
Sequence similarities	Belongs to the peroxidase family. Classical plant (class III) peroxidase subfamily.

Ontologies

Keywords
Biological process	Hydrogen peroxide
Cellular component	Cell wall Secreted
Ligand	Calcium Heme Iron Metal-binding
Molecular function	Oxidoreductase Peroxidase
Technical term	Direct protein sequencing
Gene Ontology (GO)
Biological process	hydrogen peroxide catabolic process Inferred from electronic annotation. Source: UniProtKB-KW
Cellular component	cell wall Inferred from electronic annotation. Source: UniProtKB-SubCell extracellular region Inferred from electronic annotation. Source: UniProtKB-SubCell
Molecular function	heme binding Inferred from electronic annotation. Source: InterPro peroxidase activity Inferred from electronic annotation. Source: UniProtKB-KW
Complete GO annotation...

Sequence annotation (Features)

	Feature key	Position(s)	Length	Description	Graphical view	Feature identifier
Molecule processing
	Chain	‹1 – ›22	›22	Peroxidase 5		PRO_0000320212
Experimental info
	Non-terminal residue	1	1
	Non-terminal residue	22	1

Sequences

	Sequence		Length	Mass (Da)
	P85431 [UniParc]. Last modified February 26, 2008. Version 1. Checksum: 36BA132F5199E5D8	FASTA	22	2,230
	10 20 TQLEAACPNV VSCADILALA AR

References

[1]	"Analysis of the soluble cell wall proteome of gymnosperms." Uzal E.N., Gomez-Ros L.V., Hernandez J.A., Pedreno M.A., Cuello J., Ros Barcelo A. J. Plant Physiol. 166:831-843(2009) [PubMed: 19157640] [Abstract] Cited for: PROTEIN SEQUENCE, SUBCELLULAR LOCATION. Tissue: Callus.

Cross-references

3D structure databases
ModBase	Search...
Protocols and materials databases
StructuralBiologyKnowledgebase	Search...
Family and domain databases
InterPro	IPR002016. Haem_peroxidase_pln/fun/bac. [Graphical view]
Pfam	PF00141. peroxidase. 1 hit. [Graphical view]
PROSITE	PS00435. PEROXIDASE_1. Partial match. PS00436. PEROXIDASE_2. Partial match. PS50873. PEROXIDASE_4. 1 hit. [Graphical view]
ProtoNet	Search...

Entry information

Entry name

PER5_CYCRE

Accession

Primary (citable) accession number: P85431

Entry history

Integrated into UniProtKB/Swiss-Prot:	February 26, 2008
Last sequence update:	February 26, 2008
Last modified:	June 28, 2011
This is version 16 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation program

Plant Protein Annotation Program