Skip Header

You are using a version of Internet Explorer that may not display all features of this website. Please upgrade to a modern browser.
Contribute Send feedback
Read comments (?) or add your own

P49085 (PSY_MAIZE) Reviewed, UniProtKB/Swiss-Prot

Last modified December 11, 2013. Version 69. Feed History...

Clusters with 100%, 90%, 50% identity | Documents (2) | Third-party data text xml rdf/xml gff fasta
to top of pageNames·Attributes·General annotation·Ontologies·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize order

Names and origin

Protein namesRecommended name:
Phytoene synthase, chloroplastic

EC=2.5.1.32
Gene names
Name:Y1
OrganismZea mays (Maize)
Taxonomic identifier4577 [NCBI]
Taxonomic lineageEukaryotaViridiplantaeStreptophytaEmbryophytaTracheophytaSpermatophytaMagnoliophytaLiliopsidaPoalesPoaceaePACMAD cladePanicoideaeAndropogoneaeZea

Protein attributes

Sequence length410 AA.
Sequence statusComplete.
Sequence processingThe displayed sequence is further processed into a mature form.
Protein existenceInferred from homology

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

Plastidchloroplast.

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: UniProtKB-EC

Complete GO annotation...

Sequence annotation (Features)

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifier

Molecule processing

Transit peptide1 – ?Chloroplast Potential
Chain? – 410Phytoene synthase, chloroplasticPRO_0000029858

Natural variations

Natural variant3441N → T in allele B73.

Sequences

Sequence LengthMass (Da)Tools
P49085 [UniParc].

Last modified February 1, 1996. Version 1.
Checksum: 21070A33624EED79

FASTA41046,481
        10         20         30         40         50         60 
MAIILVRAAS PGLSAADSIS HQGTLQCSTL LKTKRPAARR WMPCSLLGLH PWEAGRPSPA 

        70         80         90        100        110        120 
VYSSLPVNPA GEAVVSSEQK VYDVVLKQAA LLKRQLRTPV LDARPQDMDM PRNGLKEAYD 

       130        140        150        160        170        180 
RCGEICEEYA KTFYLGTMLM TEERRRAIWA IYVWCRRTDE LVDGPNANYI TPTALDRWEK 

       190        200        210        220        230        240 
RLEDLFTGRP YDMLDAALSD TISRFPIDIQ PFRDMIEGMR SDLRKTRYNN FDELYMYCYY 

       250        260        270        280        290        300 
VAGTVGLMSV PVMGIATESK ATTESVYSAA LALGIANQLT NILRDVGEDA RRGRIYLPQD 

       310        320        330        340        350        360 
ELAQAGLSDE DIFKGVVTNR WRNFMKRQIK RARMFFEEAE RGVNELSQAS RWPVWASLLL 

       370        380        390        400        410 
YRQILDEIEA NDYNNFTKRA YVGKGKKLLA LPVAYGKSLL LPCSLRNGQT 

« Hide

References

[1]"The y1 gene of maize codes for phytoene synthase."
Buckner B., Sanmiguel P., Janick-Buckner D., Bennetzen J.L.
Genetics 143:479-488(1996) [PubMed] [Europe PMC] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA].

Cross-references

Sequence databases

EMBL
GenBank
DDBJ
U32636 Genomic DNA. Translation: AAB60314.1.
PIRS68307.
UniGeneZm.94272.

3D structure databases

ProteinModelPortalP49085.
ModBaseSearch...
MobiDBSearch...

Protocols and materials databases

StructuralBiologyKnowledgebaseSearch...

Organism-specific databases

GrameneP49085.
MaizeGDB66643.

Phylogenomic databases

HOGENOMHOG000220848.

Enzyme and pathway databases

BioCycMetaCyc:GBWI-61910-MONOMER.
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. SSF48576. 1 hit.
PROSITEPS01044. SQUALEN_PHYTOEN_SYN_1. 1 hit.
PS01045. SQUALEN_PHYTOEN_SYN_2. 1 hit.
[Graphical view]
ProtoNetSearch...

Entry information

Entry namePSY_MAIZE
AccessionPrimary (citable) accession number: P49085
Entry history
Integrated into UniProtKB/Swiss-Prot: February 1, 1996
Last sequence update: February 1, 1996
Last modified: December 11, 2013
This is version 69 of the entry and version 1 of the sequence. [Complete history]
Entry statusReviewed (UniProtKB/Swiss-Prot)
Annotation programPlant Protein Annotation Program

Relevant documents

SIMILARITY comments

Index of protein domains and families

PATHWAY comments

Index of metabolic and biosynthesis pathways