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P49293 (PSY_CUCME) Reviewed, UniProtKB/Swiss-Prot

Last modified April 3, 2013. Version 61. Feed History...

Clusters with 100%, 90%, 50% identity | Documents (2) | Third-party data text xml rdf/xml gff fasta
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Names and origin

Protein namesRecommended name:
Phytoene synthase, chloroplastic
EC=2.5.1.32
Alternative name(s):
MEL5
Gene names
Name:PSY
OrganismCucumis melo (Muskmelon)
Taxonomic identifier3656 [NCBI]
Taxonomic lineageEukaryota › Viridiplantae › Streptophyta › Embryophyta › Tracheophyta › Spermatophyta › Magnoliophyta › eudicotyledons › core eudicotyledons › rosids › fabids › Cucurbitales › Cucurbitaceae › Benincaseae › Cucumis

Protein attributes

Sequence length422 AA.
Sequence statusComplete.
Sequence processingThe displayed sequence is further processed into a mature form.
Protein existenceEvidence at transcript level

General annotation (Comments)

Function

Catalyzes the reaction from prephytoene diphosphate to phytoene.

Catalytic activity

2 geranylgeranyl diphosphate = 15-cis-phytoene + 2 diphosphate.

Pathway

Carotenoid biosynthesis; phytoene biosynthesis; all-trans-phytoene from geranylgeranyl diphosphate: step 1/1.

Subunit structure

Monomer By similarity.

Subcellular location

Plastid › chloroplast.

Sequence similarities

Belongs to the phytoene/squalene synthase family.

Ontologies

Keywords
   Biological processCarotenoid biosynthesis
Isoprene biosynthesis
   Cellular componentChloroplast
Plastid
   DomainTransit peptide
   Molecular functionTransferase
   Technical termMultifunctional enzyme
Gene Ontology (GO)
   Biological_processcarotenoid biosynthetic process

Inferred from electronic annotation. Source: UniProtKB-KW

   Cellular_componentchloroplast

Inferred from electronic annotation. Source: UniProtKB-SubCell

   Molecular_functiongeranylgeranyl-diphosphate geranylgeranyltransferase activity

Inferred from electronic annotation. Source: EC

Complete GO annotation...

Sequence annotation (Features)

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifier

Molecule processing

Transit peptide1 – 8383Chloroplast Potential
Chain84 – 422339Phytoene synthase, chloroplastic
PRO_0000029854

Sequences

Sequence LengthMass (Da)Tools
P49293 [UniParc].

Last modified February 1, 1996. Version 1.
Checksum: 259124B3AD4642B0

FASTA42247,392
        10         20         30         40         50         60 
MSLASSLVVS SNVELSPSSF GFLDSVRDGP QIPDSFRFSS RNRVPNLINK KQKWGNHSHS 

        70         80         90        100        110        120 
TELKYPILHE SGYGSVIVAS MVANPAGEIA VSAEQKVYNV VMKQAALVKR QLRTAGELDV 

       130        140        150        160        170        180 
KPDIVLPGTL SLLNEAYDRC GEVCAEYAKT FYLGTMLMTP ERQKAIWAIY VWCRRTDELV 

       190        200        210        220        230        240 
DGPNASHITP TALDRWEARL EELFQGRPFD MLDAALADTV TKFPVDIQPF KDMIEGMRMD 

       250        260        270        280        290        300 
LRKSRYKNFD ELYLYCYYVA GTVGLMSVPV MGIAPESQAS TESVYNAALA LGIANQAPPN 

       310        320        330        340        350        360 
ILRDVGEDAR RGRIYLPQDE LAQAGLSDED IFAGRVTDKW RNFMKNQIKR ARMFFDEAEK 

       370        380        390        400        410        420 
GVLELNKASR WPVWASLLLY RQILDEIEAN DYDNFTKRAY VSKAKKILAL PMAYGRALLG 


PS

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References

[1]"Isolation and characterisation of a melon cDNA clone encoding phytoene synthase."
Karvouni Z., John I., Taylor J.E., Watson C.F., Turner A.J., Grierson D.
Plant Mol. Biol. 27:1153-1162(1995) [PubMed] [Europe PMC] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [MRNA].
Strain: cv. Cantaloup Charentais.
Tissue: Pericarp.

Cross-references

Sequence databases

EMBL
GenBank
DDBJ		Z37543 mRNA. Translation: CAA85775.1.
PIRS56668.

3D structure databases

ProteinModelPortalP49293.
ModBaseSearch...

Protocols and materials databases

StructuralBiologyKnowledgebaseSearch...

Enzyme and pathway databases

UniPathwayUPA00799; UER00773.

Family and domain databases

Gene3D1.10.600.10. 1 hit.
InterProIPR002060. Squ/phyt_synthse.
IPR019845. Squalene/phytoene_synthase_CS.
IPR008949. Terpenoid_synth.
[Graphical view]
PfamPF00494. SQS_PSY. 1 hit.
[Graphical view]
SUPFAMSSF48576. Terpenoid_synth. 1 hit.
PROSITEPS01044. SQUALEN_PHYTOEN_SYN_1. 1 hit.
PS01045. SQUALEN_PHYTOEN_SYN_2. 1 hit.
[Graphical view]
ProtoNetSearch...

Entry information

Entry namePSY_CUCME
AccessionPrimary (citable) accession number: P49293
Entry history
Integrated into UniProtKB/Swiss-Prot: February 1, 1996
Last sequence update: February 1, 1996
Last modified: April 3, 2013
This is version 61 of the entry and version 1 of the sequence. [Complete history]
Entry statusReviewed (UniProtKB/Swiss-Prot)
Annotation programPlant Protein Annotation Program

Relevant documents

PATHWAY comments

Index of metabolic and biosynthesis pathways

SIMILARITY comments

Index of protein domains and families

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