Reviewed, UniProtKB/Swiss-Prot Q9XF37 (PROF_APIGR)

Names and origin

Protein names	Recommended name:     Profilin Alternative name(s):     Minor pollen allergen Api g 4     Allergen=Api g 4
Organism	Apium graveolens (Celery)
Taxonomic identifier	4045 [NCBI]
Taxonomic lineage	Eukaryota › Viridiplantae › Streptophyta › Embryophyta › Tracheophyta › Spermatophyta › Magnoliophyta › eudicotyledons › core eudicotyledons › asterids › campanulids › Apiales › Apiaceae › Apioideae › apioid superclade › Apium clade › Apium

Protein attributes

Sequence length	134 AA.
Sequence status	Complete.
Sequence processing	The displayed sequence is further processed into a mature form.
Protein existence	Evidence at protein level.

General annotation (Comments)

Function	Binds to actin and affects the structure of the cytoskeleton. At high concentrations, profilin prevents the polymerization of actin, whereas it enhances it at low concentrations. By binding to PIP2, it inhibits the formation of IP3 and DG By similarity.
Subunit structure	Occurs in many kinds of cells as a complex with monomeric actin in a 1:1 ratio.
Subcellular location	Cytoplasm › cytoskeleton By similarity.
Allergenic properties	Causes an allergic reaction in human. Ref.1
Sequence similarities	Belongs to the profilin family.

Ontologies

Keywords
Cellular component	Cytoplasm Cytoskeleton
Disease	Allergen
Ligand	Actin-binding
Gene Ontology (GO)
Biological process	actin cytoskeleton organization Inferred from electronic annotation. Source: InterPro
Cellular component	actin cytoskeleton Inferred from electronic annotation. Source: InterPro cytoplasm Inferred from electronic annotation. Source: UniProtKB-KW
Molecular function	actin binding 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
	Initiator methionine	1	1	Removed By similarity
	Chain	2 – 134	133	Profilin		PRO_0000199613

Sequences

	Sequence		Length	Mass (Da)
	Q9XF37-1 [UniParc]. Last modified November 1, 1999. Version 1. Checksum: 5246BCC865C1DC57	FASTA	134	14,276
	10 20 30 40 50 60 MSWQAYVDDH LMCEVEGNPG QTLTAAAIIG HDGSVWAQSS TFPQIKPEEI AGIMKDFDEP 70 80 90 100 110 120 GHLAPTGLYL GGAKYMVIQG EPNAVIRGKK GSGGVTIKKT GQALVFGVYD EPVTPGQCNV 130 IVERLGDYLI DQGL

References

[1]

"Cloning of the minor allergen Api g 4 profilin from celery (Apium graveolens) and its cross-reactivity with birch pollen profilin Bet v 2." Scheurer S., Wangorsch A., Haustein D., Vieths S. Clin. Exp. Allergy 30:962-971(2000) [PubMed: 10848918] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA], ALLERGENICITY. Strain: cv. Prinz.

Cross-references

Sequence databases
EMBLGenBankDDBJ	AF129423 mRNA. Translation: AAD29409.1.
3D structure databases
SMR	Q9XF37. Positions 2-134.
ModBase	Search...
Family and domain databases
InterPro	IPR002097. Profilin. IPR005455. Profilin_plant. [Graphical view]
PANTHER	PTHR11604. Profilin_plant. 1 hit.
Pfam	PF00235. Profilin. 1 hit. [Graphical view]
PRINTS	PR00392. PROFILIN. PR01640. PROFILINPLNT.
SMART	SM00392. PROF. 1 hit. [Graphical view]
PROSITE	PS00414. PROFILIN. 1 hit. [Graphical view]
ProtoNet	Search...

Entry information

Entry name

PROF_APIGR

Accession

Primary (citable) accession number: Q9XF37

Entry history

Integrated into UniProtKB/Swiss-Prot:	June 20, 2001
Last sequence update:	November 1, 1999
Last modified:	November 24, 2009
This is version 41 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation project

PPAP (Plant Proteome Annotation Project)