Reviewed, UniProtKB/Swiss-Prot Q4PR48 (EXP18_ORYSJ)

Names and origin

Protein names

Recommended name:
    Expansin-A18
Alternative name(s):
    OsEXPA18
    Alpha-expansin-18
    OsEXP18
    OsaEXPa1.3

Gene names

Name:	EXPA18
Synonyms:	EXP18
Ordered Locus Names:	Os03g0155900, LOC_Os03g06040
ORF Names:	OSJNBa0011L14.15

Organism

Oryza sativa subsp. japonica (Rice)

Taxonomic identifier

39947 [NCBI]

Taxonomic lineage

Eukaryota › Viridiplantae › Streptophyta › Embryophyta › Tracheophyta › Spermatophyta › Magnoliophyta › Liliopsida › Poales › Poaceae › BEP clade › Ehrhartoideae › Oryzeae › Oryza

Protein attributes

Sequence length	249 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	May cause loosening and extension of plant cell walls by disrupting non-covalent bonding between cellulose microfibrils and matrix glucans. No enzymatic activity has been found. May be required for rapid internodal elongation in deepwater rice during submergence By similarity.
Subcellular location	Secreted › cell wall By similarity. Membrane; Peripheral membrane protein By similarity.
Tissue specificity	Expressed in roots. Ref.3
Sequence similarities	Belongs to the expansin family. Expansin A subfamily. Contains 1 expansin-like CBD domain. Contains 1 expansin-like EG45 domain.

Ontologies

Keywords
Biological process	Cell wall biogenesis/degradation
Cellular component	Cell wall Membrane Secreted
Domain	Signal
PTM	Glycoprotein
Gene Ontology (GO)
Biological process	plant-type cell wall organization Inferred from electronic annotation. Source: InterPro
Cellular component	cell wall Inferred from electronic annotation. Source: UniProtKB-SubCell extracellular region Inferred from electronic annotation. Source: UniProtKB-KW extrinsic to membrane Inferred from electronic annotation. Source: UniProtKB-SubCell
Complete GO annotation...

Sequence annotation (Features)

	Feature key	Position(s)	Length	Description	Graphical view	Feature identifier
Molecule processing
	Signal peptide	1 – 21	21	Potential
	Chain	22 – 249	228	Expansin-A18		PRO_0000251997
Regions
	Domain	41 – 154	114	Expansin-like EG45
	Domain	164 – 243	80	Expansin-like CBD
Amino acid modifications
	Glycosylation	116	1	N-linked (GlcNAc...) Potential

Sequences

	Sequence		Length	Mass (Da)
	Q4PR48-1 [UniParc]. Last modified October 3, 2006. Version 2. Checksum: B375CC995F08D6E0	FASTA	249	26,431
	10 20 30 40 50 60 MGNIVLQLLA ILALCIAPAR SGWLQGTATF YGGADGSGTM GGACGYGNLY DQGYGINNAA 70 80 90 100 110 120 LSTPLFNNGA SCGQCYLIIC NYDKAPSGCR MGTAITVTGT NFCPPNYDLP YGGWCNTTRP 130 140 150 160 170 180 HFDMSQPAWE NIGIYSAGIV PILYQQVKCW RSGGVRFTIT GLNYFELVLV TNMAGSGSIA 190 200 210 220 230 240 SMSVKGSSTG WIQMSRNWGA NWQCLAGLAG QALSFTVTST GGQTIVFDSV VPAGWSFGQT FSTYQQFDY

References

	« Hide 'large scale' referencesShow 'large scale' references »
[1]	"Expression of alpha-expansin and expansin-like genes in deepwater rice." Lee Y., Kende H. Plant Physiol. 130:1396-1405(2002) [PubMed: 12428004] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA].
[2]	"Sequence, annotation, and analysis of synteny between rice chromosome 3 and diverged grass species." The rice chromosome 3 sequencing consortium Buell C.R., Yuan Q., Ouyang S., Liu J., Zhu W., Wang A., Maiti R., Haas B., Wortman J., Pertea M., Jones K.M., Kim M., Overton L., Tsitrin T., Fadrosh D., Bera J., Weaver B., Jin S. , Johri S., Reardon M., Webb K., Hill J., Moffat K., Tallon L., Van Aken S., Lewis M., Utterback T., Feldblyum T., Zismann V., Iobst S., Hsiao J., de Vazeille A.R., Salzberg S.L., White O., Fraser C.M., Yu Y., Kim H., Rambo T., Currie J., Collura K., Kernodle-Thompson S., Wei F., Kudrna K., Ammiraju J.S.S., Luo M., Goicoechea J.L., Wing R.A., Henry D., Oates R., Palmer M., Pries G., Saski C., Simmons J., Soderlund C., Nelson W., de la Bastide M., Spiegel L., Nascimento L., Huang E., Preston R., Zutavern T., Palmer L., O'Shaughnessy A., Dike S., McCombie W.R., Minx P., Cordum H., Wilson R., Jin W., Lee H.R., Jiang J., Jackson S. Genome Res. 15:1284-1291(2005) [PubMed: 16109971] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: cv. Nipponbare.
[3]	"Characterization and transcriptional expression of the alpha-expansin gene family in rice." Shin J.-H., Jeong D.-H., Park M.C., An G. Mol. Cells 20:210-218(2005) [PubMed: 16267395] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA] OF 9-249, TISSUE SPECIFICITY. Strain: cv. Dongjin.
[4]	"Nomenclature for members of the expansin superfamily of genes and proteins." Kende H., Bradford K.J., Brummell D.A., Cho H.-T., Cosgrove D.J., Fleming A.J., Gehring C., Lee Y., McQueen-Mason S.J., Rose J.K.C., Voesenek L.A.C. Plant Mol. Biol. 55:311-314(2004) [PubMed: 15604683] [Abstract] Cited for: NOMENCLATURE.

Web resources

EXPANSIN homepage

Cross-references

Sequence databases
EMBL GenBank DDBJ	AF394553 Genomic DNA. Translation: AAL24489.1. AC105730 Genomic DNA. Translation: AAM51841.1. DP000009 Genomic DNA. Translation: ABF94055.1. DQ061059 mRNA. Translation: AAY63550.1.
RefSeq	NP_001049006.1.
UniGene	Os.69096
3D structure databases
SMR	Q4PR48. Positions 18-247.
ModBase	Search...
Genome annotation databases
GeneID	4331666.
KEGG	osa:4331666.
Organism-specific databases
Gramene	Q4PR48.
Family and domain databases
InterPro	IPR009009. Barwin-related_endoglucanase. IPR007112. Expan_endogl. IPR007118. Expan_Lol_pI. IPR007117. Expan_Lol_pI_C. IPR002963. Expansin. IPR014734. Pollen_allergen. IPR005132. RlpA. [Graphical view]
Gene3D	G3DSA:2.60.40.760. Expan_Lol_pI_C. 1 hit. G3DSA:2.40.40.40. Pollen_allergen. 1 hit.
Pfam	PF03330. DPBB_1. 1 hit. PF01357. Pollen_allerg_1. 1 hit. [Graphical view]
PRINTS	PR01226. EXPANSIN. PR01225. EXPANSNFAMLY.
PROSITE	PS50843. EXPANSIN_CBD. 1 hit. PS50842. EXPANSIN_EG45. 1 hit. [Graphical view]
ProtoNet	Search...

Entry information

Entry name

EXP18_ORYSJ

Accession

Primary (citable) accession number: Q4PR48
Secondary accession number(s): Q7G6Z4, Q946I4

Entry history

Integrated into UniProtKB/Swiss-Prot:	October 3, 2006
Last sequence update:	October 3, 2006
Last modified:	January 19, 2010
This is version 29 of the entry and version 2 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation project

PPAP (Plant Proteome Annotation Project)