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Q08304

- PPOB_SOLLC

UniProt

Q08304 - PPOB_SOLLC

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Protein
Polyphenol oxidase B, chloroplastic
Gene
N/A
Organism
Solanum lycopersicum (Tomato) (Lycopersicon esculentum)
Status
Reviewed - Annotation score: 3 out of 5 - Protein inferred from homologyi

Functioni

Catalyzes the oxidation of mono- and o-diphenols to o-diquinones.

Catalytic activityi

2 catechol + O2 = 2 1,2-benzoquinone + 2 H2O.

Cofactori

Binds 2 copper ions per subunit By similarity.

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Metal bindingi181 – 1811Copper A By similarity
Metal bindingi199 – 1991Copper A By similarity
Metal bindingi208 – 2081Copper A By similarity
Metal bindingi329 – 3291Copper B By similarity
Metal bindingi333 – 3331Copper B By similarity
Metal bindingi371 – 3711Copper B By similarity

GO - Molecular functioni

  1. catechol oxidase activity Source: UniProtKB-EC
  2. metal ion binding Source: UniProtKB-KW
Complete GO annotation...

GO - Biological processi

  1. pigment biosynthetic process Source: InterPro
Complete GO annotation...

Keywords - Molecular functioni

Oxidoreductase

Keywords - Ligandi

Copper, Metal-binding

Names & Taxonomyi

Protein namesi
Recommended name:
Polyphenol oxidase B, chloroplastic (EC:1.10.3.1)
Short name:
PPO
Alternative name(s):
Catechol oxidase
OrganismiSolanum lycopersicum (Tomato) (Lycopersicon esculentum)
Taxonomic identifieri4081 [NCBI]
Taxonomic lineageiEukaryotaViridiplantaeStreptophytaEmbryophytaTracheophytaSpermatophytaMagnoliophytaeudicotyledonsGunneridaePentapetalaeasteridslamiidsSolanalesSolanaceaeSolanoideaeSolaneaeSolanumLycopersicon
ProteomesiUP000004994: Unplaced

Subcellular locationi

GO - Cellular componenti

  1. chloroplast thylakoid lumen Source: UniProtKB-SubCell
Complete GO annotation...

Keywords - Cellular componenti

Chloroplast, Plastid, Thylakoid

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Transit peptidei1 – 8787Chloroplast By similarity
Add
BLAST
Chaini88 – 596509Polyphenol oxidase B, chloroplastic
PRO_0000035911Add
BLAST

Amino acid modifications

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Disulfide bondi98 ↔ 114 By similarity
Disulfide bondi113 ↔ 182 By similarity
Cross-linki185 ↔ 1992'-(S-cysteinyl)-histidine (Cys-His) By similarity

Keywords - PTMi

Disulfide bond, Thioether bond

Structurei

3D structure databases

ProteinModelPortaliQ08304.

Family & Domainsi

Sequence similaritiesi

Belongs to the tyrosinase family.

Keywords - Domaini

Transit peptide

Family and domain databases

Gene3Di1.10.1280.10. 1 hit.
InterProiIPR016213. Polyphenol_oxidase.
IPR022740. Polyphenol_oxidase_C.
IPR022739. Polyphenol_oxidase_cen.
IPR002227. Tyrosinase_Cu-bd.
IPR008922. Unchr_di-copper_centre.
[Graphical view]
PfamiPF12142. PPO1_DWL. 1 hit.
PF12143. PPO1_KFDV. 1 hit.
PF00264. Tyrosinase. 1 hit.
[Graphical view]
PIRSFiPIRSF000290. PPO_plant. 1 hit.
PRINTSiPR00092. TYROSINASE.
SUPFAMiSSF48056. SSF48056. 1 hit.
PROSITEiPS00497. TYROSINASE_1. 1 hit.
PS00498. TYROSINASE_2. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

Sequence processingi: The displayed sequence is further processed into a mature form.

Q08304-1 [UniParc]FASTAAdd to Basket

« Hide

MASVVCNSSS STTTTTLKTP FTSLGSTPKP SQLFLHGKRN KTFKVSCKVI    50
NNNGNQDETN SVDRRNVLLG LGGLYGVANA IPLAASATPI PSPDLKTCGR 100
ATISDGPLVP YSCCPPPMPT NFDTIPYYKF PSMTKLRIRT PAHAVDEEYI 150
AKYNLAISRM RDLDKTEPLN PLGFKQQANI HCAYCNGAYI IGGKELQVHN 200
SWLFFPFHRW YLYFYERILG KLIDDPTFAL PYWNWDHPKG MRLPPMFDRE 250
GSSLYDERRN QQVRNGTVLD LGSFGDKVET TQLQLMSNNL TLMYRQMVTN 300
APCPLLFFGA PYVLGNNVEA PGTIETIPHI PVHIWAGTVR GSKFPNGDVS 350
YGEDMGNFYS AGLDPVFYCH HGNVDRMWNE WKAIGGKRRD ISEKDWLNSE 400
FFFYDEHKNP YRVKVRDCLD TKKMGYDYAP MPTPWRNFKP KSKASVGKVN 450
TSTLPPANEV FPLAKMDKTI SFAINRPASS RTQQEKNEQE EMLTFNNIRY 500
DNRGYIRFDV FLNVDNNVNA NELDKAEFAG SYTSLPHVHR AGENDHIAKV 550
NFQLAITELL EDIGLEDEDT IAVTLVPKKG GEGISIENVE IKLVDC 596
Length:596
Mass (Da):67,227
Last modified:November 1, 1995 - v1
Checksum:iBD8553F7972FC7E8
GO

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
Z12834 Genomic DNA. Translation: CAA78296.1.
PIRiS33540.
RefSeqiXP_004246032.1. XM_004245984.1.

Genome annotation databases

GeneIDi101258774.
KEGGisly:101258774.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
Z12834 Genomic DNA. Translation: CAA78296.1 .
PIRi S33540.
RefSeqi XP_004246032.1. XM_004245984.1.

3D structure databases

ProteinModelPortali Q08304.
ModBasei Search...

Protocols and materials databases

Structural Biology Knowledgebase Search...

Genome annotation databases

GeneIDi 101258774.
KEGGi sly:101258774.

Family and domain databases

Gene3Di 1.10.1280.10. 1 hit.
InterProi IPR016213. Polyphenol_oxidase.
IPR022740. Polyphenol_oxidase_C.
IPR022739. Polyphenol_oxidase_cen.
IPR002227. Tyrosinase_Cu-bd.
IPR008922. Unchr_di-copper_centre.
[Graphical view ]
Pfami PF12142. PPO1_DWL. 1 hit.
PF12143. PPO1_KFDV. 1 hit.
PF00264. Tyrosinase. 1 hit.
[Graphical view ]
PIRSFi PIRSF000290. PPO_plant. 1 hit.
PRINTSi PR00092. TYROSINASE.
SUPFAMi SSF48056. SSF48056. 1 hit.
PROSITEi PS00497. TYROSINASE_1. 1 hit.
PS00498. TYROSINASE_2. 1 hit.
[Graphical view ]
ProtoNeti Search...

Publicationsi

  1. Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA].
    Strain: cv. VFNT Cherry.

Entry informationi

Entry nameiPPOB_SOLLC
AccessioniPrimary (citable) accession number: Q08304
Entry historyi
Integrated into UniProtKB/Swiss-Prot: November 1, 1995
Last sequence update: November 1, 1995
Last modified: June 11, 2014
This is version 77 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programPlant Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome

Documents

  1. SIMILARITY comments
    Index of protein domains and families

External Data

Dasty 3

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