P53797 (PSY_NARPS) Reviewed, UniProtKB/Swiss-Prot

Names and origin

Protein names

Recommended name:
Phytoene synthase, chloroplastic
EC=2.5.1.32

Gene names

Name:

PSY

Organism

Narcissus pseudonarcissus (Daffodil)

Taxonomic identifier

39639 [NCBI]

Taxonomic lineage

cellular organisms › Eukaryota › Viridiplantae › Streptophyta › Streptophytina › Embryophyta › Tracheophyta › Euphyllophyta › Spermatophyta › Magnoliophyta › Liliopsida › Asparagales › Amaryllidaceae › Amaryllidoideae › Narcissus

Protein attributes

Sequence length	423 AA.
Sequence status	Complete.
Sequence processing	The displayed sequence is further processed into a mature form.
Protein existence	Evidence 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 process	Carotenoid biosynthesis Isoprene biosynthesis
Cellular component	Chloroplast Plastid
Domain	Transit peptide
Molecular function	Transferase
Technical term	Multifunctional enzyme
Gene Ontology (GO)
Biological_process	carotenoid biosynthetic process Inferred from electronic annotation. Source: UniProtKB-KW
Cellular_component	chloroplast Inferred from electronic annotation. Source: UniProtKB-SubCell
Molecular_function	geranylgeranyl-diphosphate geranylgeranyltransferase activity Inferred from electronic annotation. Source: EC
Complete GO annotation...

Sequence annotation (Features)

	Feature key	Position(s)	Length	Description	Graphical view	Feature identifier
Molecule processing
	Transit peptide	1 – 136	136	Chloroplast Potential
	Chain	137 – 423	287	Phytoene synthase, chloroplastic		PRO_0000029859

Sequences

	Sequence		Length	Mass (Da)
	P53797 [UniParc]. Last modified October 1, 1996. Version 1. Checksum: 8E76BA35312B73DF	FASTA	423	47,806
	10 20 30 40 50 60 MVVAILRVVS AIEIPIRLGF SEANWRFSSP KYDNLGRKKS RLSVYSLYTT SKYACVGFEA 70 80 90 100 110 120 ENNGKFLIRS SLVANPAGEA TISSEQKVYD VVLKQAALVK DQTKSSRKST DVKPDIVLPG 130 140 150 160 170 180 TVYLLKDAYD RCGEVCAEYA KTFYLGTLLM TPERRRAIWA IYVWCRRTDE LVDGHNASHI 190 200 210 220 230 240 TPSALDRWEA RLEDLFAGRP YDMFDAALSD TVSRFPVDIQ PFMDMVEGMR MDLKKSRYKN 250 260 270 280 290 300 FDELYLYCYY VAGTVGLMSV PVMGIAPESL AEAESVYNAA LALGIANQLT NILRDVGEDA 310 320 330 340 350 360 RRGRIYLPQD ELAEAGLSDE DVFTGKVTDK WRSFMKRQIK RARTFFEQAE KGVTELSQAS 370 380 390 400 410 420 RWPVWASLLL YRQILDEIEA NDYNNFTKRA YVSKVKRLAA LPLAYGKSLL IPLSLRPPSL SKA

References

[1]	"Nucleotide sequence of a Narcissus pseudonarcissus cDNA for phytoene synthase." Schledz M., Beyer P. Plant Gene Register PGR95-122 Cited for: NUCLEOTIDE SEQUENCE [MRNA]. Tissue: Paracorolla.

Cross-references

Sequence databases
EMBL GenBank DDBJ	X78814 mRNA. Translation: CAA55391.1.
PIR	S54135.
3D structure databases
ProteinModelPortal	P53797.
ModBase	Search...
Protocols and materials databases
StructuralBiologyKnowledgebase	Search...
Enzyme and pathway databases
UniPathway	UPA00799; UER00773.
Family and domain databases
Gene3D	1.10.600.10. 1 hit.
InterPro	IPR002060. Squ/phyt_synthse. IPR019845. Squalene/phytoene_synthase_CS. IPR008949. Terpenoid_synth. [Graphical view]
Pfam	PF00494. SQS_PSY. 1 hit. [Graphical view]
SUPFAM	SSF48576. Terpenoid_synth. 1 hit.
PROSITE	PS01044. SQUALEN_PHYTOEN_SYN_1. 1 hit. PS01045. SQUALEN_PHYTOEN_SYN_2. 1 hit. [Graphical view]
ProtoNet	Search...

Entry information

Entry name

PSY_NARPS

Accession

Primary (citable) accession number: P53797

Entry history

Integrated into UniProtKB/Swiss-Prot:	October 1, 1996
Last sequence update:	October 1, 1996
Last modified:	March 6, 2013
This is version 62 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation program

Plant Protein Annotation Program