Q4PR43 (EXP23_ORYSJ) Reviewed, UniProtKB/Swiss-Prot

Names and origin

Protein names

Recommended name:
Expansin-A23

Alternative name(s):
Alpha-expansin-23
OsEXP23
OsEXPA23
OsaEXPa1.12

Gene names

Name:	EXPA23.1
Synonyms:	EXP23.1
Ordered Locus Names:	Os02g0268000, LOC_Os02g16809
ORF Names:	P0693E08.13
AND
Name:	EXPA23.2
Synonyms:	EXP23.2
Ordered Locus Names:	Os02g0268000, LOC_Os02g16839
ORF Names:	P0693E08.17

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	267 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.
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
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 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 – 267	246	Expansin-A23		PRO_0000252002
Regions
	Domain	57 – 172	116	Expansin-like EG45
	Domain	182 – 262	81	Expansin-like CBD

Sequences

	Sequence		Length	Mass (Da)
	Q4PR43 [UniParc]. Last modified October 3, 2006. Version 2. Checksum: 0B30089563F3F521	FASTA	267	28,574
	10 20 30 40 50 60 MAPARAFVLV LLAVASASTA AANTATTTPT NPVAAPTQWQ KAHATFYGGA DASGTMGGAC 70 80 90 100 110 120 GYGNLYSQGY GTRNAALSTA LFNDGASCGQ CYKIACDRKR APQWCKPGVT VTITATNFCP 130 140 150 160 170 180 PNWNLPSDNG GWCNPPRPHF DMAQPAWEKI GVYSAGIIPV IYQRVPCVKK GGLRFTINGH 190 200 210 220 230 240 DYFQLVLVTN VAAAGSIKSM EVMGSNTADW MPMARNWGAQ WHSLAYLTGQ GLSFRVTNTD 250 260 DQTLVFTNVV PPGWKFGQTF ASKLQFK

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]	"The map-based sequence of the rice genome." International rice genome sequencing project (IRGSP) Nature 436:793-800(2005) [PubMed: 16100779] [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 7-267 (EXPA23.1 AND EXPA23.2). 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	AF394558 Genomic DNA. Translation: AAL24494.1. AP005428 Genomic DNA. Translation: BAD28626.1. AP005428 Genomic DNA. Translation: BAD28629.1. DQ061064 mRNA. Translation: AAY63555.1.
3D structure databases
ProteinModelPortal	Q4PR43.
ModBase	Search...
Protocols and materials databases
StructuralBiologyKnowledgebase	Search...
Genome annotation databases
EnsemblPlants	LOC_Os02g16809.1; LOC_Os02g16809.1; LOC_Os02g16809.
Organism-specific databases
Gramene	Q4PR43.
Phylogenomic databases
GeneTree	EPGT00070000027988.
OMA	SSNSTEW.
Family and domain databases
InterPro	IPR014733. Barwin-like_endoglucanase. IPR009009. Barwin-related_endoglucanase. IPR007118. Expan_Lol_pI. IPR007117. Expan_Lol_pI_C. IPR002963. Expansin. IPR007112. Expansin/allergen_DPBB_dom. [Graphical view]
Gene3D	G3DSA:2.40.40.10. Barwin. 1 hit. G3DSA:2.60.40.760. Expan_Lol_pI_C. 1 hit.
Pfam	PF03330. DPBB_1. 1 hit. PF01357. Pollen_allerg_1. 1 hit. [Graphical view]
PRINTS	PR01226. EXPANSIN. PR01225. EXPANSNFAMLY.
SMART	SM00837. DPBB_1. 1 hit. [Graphical view]
SUPFAM	SSF50685. Barwin_like. 1 hit. SSF49590. Expan_Lol_pI_C. 1 hit.
PROSITE	PS50843. EXPANSIN_CBD. 1 hit. PS50842. EXPANSIN_EG45. 1 hit. [Graphical view]
ProtoNet	Search...

Entry information

Entry name

EXP23_ORYSJ

Accession

Primary (citable) accession number: Q4PR43
Secondary accession number(s): Q6ERU4, Q946H9

Entry history

Integrated into UniProtKB/Swiss-Prot:	October 3, 2006
Last sequence update:	October 3, 2006
Last modified:	September 21, 2011
This is version 34 of the entry and version 2 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation program

Plant Protein Annotation Program