ID   EXP23_ORYSJ             Reviewed;         267 AA.
AC   Q4PR43; Q6ERU4; Q946H9;
DT   03-OCT-2006, integrated into UniProtKB/Swiss-Prot.
DT   03-OCT-2006, sequence version 2.
DT   10-JUN-2026, entry version 89.
DE   RecName: Full=Expansin-A23;
DE   AltName: Full=Alpha-expansin-23;
DE   AltName: Full=OsEXP23;
DE   AltName: Full=OsEXPA23;
DE   AltName: Full=OsaEXPa1.12;
DE   Flags: Precursor;
GN   Name=EXPA23.1; Synonyms=EXP23.1;
GN   OrderedLocusNames=Os02g0268000, LOC_Os02g16809; ORFNames=P0693E08.13;
GN   and
GN   Name=EXPA23.2; Synonyms=EXP23.2;
OS   Oryza sativa subsp. japonica (Rice).
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Magnoliopsida; Liliopsida; Poales; Poaceae; BOP clade;
OC   Oryzoideae; Oryzeae; Oryzinae; Oryza; Oryza sativa.
OX   NCBI_TaxID=39947;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX   PubMed=12428004; DOI=10.1104/pp.008888;
RA   Lee Y., Kende H.;
RT   "Expression of alpha-expansin and expansin-like genes in deepwater rice.";
RL   Plant Physiol. 130:1396-1405(2002).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=cv. Nipponbare;
RX   PubMed=16100779; DOI=10.1038/nature03895;
RG   International rice genome sequencing project (IRGSP);
RT   "The map-based sequence of the rice genome.";
RL   Nature 436:793-800(2005).
RN   [3]
RP   GENOME REANNOTATION.
RC   STRAIN=cv. Nipponbare;
RX   PubMed=24280374; DOI=10.1186/1939-8433-6-4;
RA   Kawahara Y., de la Bastide M., Hamilton J.P., Kanamori H., McCombie W.R.,
RA   Ouyang S., Schwartz D.C., Tanaka T., Wu J., Zhou S., Childs K.L.,
RA   Davidson R.M., Lin H., Quesada-Ocampo L., Vaillancourt B., Sakai H.,
RA   Lee S.S., Kim J., Numa H., Itoh T., Buell C.R., Matsumoto T.;
RT   "Improvement of the Oryza sativa Nipponbare reference genome using next
RT   generation sequence and optical map data.";
RL   Rice 6:4-4(2013).
RN   [4]
RP   NUCLEOTIDE SEQUENCE [MRNA] OF 7-267 (EXPA23.1 AND EXPA23.2).
RC   STRAIN=cv. Dongjin;
RX   PubMed=16267395; DOI=10.1016/s1016-8478(23)13219-5;
RA   Shin J.-H., Jeong D.-H., Park M.C., An G.;
RT   "Characterization and transcriptional expression of the alpha-expansin gene
RT   family in rice.";
RL   Mol. Cells 20:210-218(2005).
RN   [5]
RP   NOMENCLATURE.
RX   PubMed=15604683; DOI=10.1007/s11103-004-0158-6;
RA   Kende H., Bradford K.J., Brummell D.A., Cho H.-T., Cosgrove D.J.,
RA   Fleming A.J., Gehring C., Lee Y., McQueen-Mason S.J., Rose J.K.C.,
RA   Voesenek L.A.C.;
RT   "Nomenclature for members of the expansin superfamily of genes and
RT   proteins.";
RL   Plant Mol. Biol. 55:311-314(2004).
CC   -!- FUNCTION: May cause loosening and extension of plant cell walls by
CC       disrupting non-covalent bonding between cellulose microfibrils and
CC       matrix glucans. No enzymatic activity has been found. May be required
CC       for rapid internodal elongation in deepwater rice during submergence
CC       (By similarity). {ECO:0000250}.
CC   -!- SUBCELLULAR LOCATION: Secreted, cell wall {ECO:0000250}. Membrane
CC       {ECO:0000250}; Peripheral membrane protein {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the expansin family. Expansin A subfamily.
CC       {ECO:0000305}.
CC   -!- WEB RESOURCE: Name=EXPANSIN homepage;
CC       URL="https://www.dept.psu.edu/biology/groups/expansins/index.htm";
CC   ---------------------------------------------------------------------------
CC   Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC   Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC   ---------------------------------------------------------------------------
DR   EMBL; AF394558; AAL24494.1; -; Genomic_DNA.
DR   EMBL; AP005428; BAD28626.1; -; Genomic_DNA.
DR   EMBL; AP005428; BAD28629.1; -; Genomic_DNA.
DR   EMBL; AP014958; -; NOT_ANNOTATED_CDS; Genomic_DNA.
DR   EMBL; DQ061064; AAY63555.1; -; mRNA.
DR   AlphaFoldDB; Q4PR43; -.
DR   SMR; Q4PR43; -.
DR   FunCoup; Q4PR43; 15.
DR   STRING; 39947.Q4PR43; -.
DR   PaxDb; 39947-Q4PR43; -.
DR   eggNOG; ENOG502SWQD; Eukaryota.
DR   HOGENOM; CLU_027462_0_1_1; -.
DR   InParanoid; Q4PR43; -.
DR   Proteomes; UP000059680; Chromosome 2.
DR   GO; GO:0005576; C:extracellular region; IEA:InterPro.
DR   GO; GO:0016020; C:membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0009828; P:plant-type cell wall loosening; ISS:UniProtKB.
DR   CDD; cd22274; DPBB_EXPA_N; 1.
DR   FunFam; 2.40.40.10:FF:000001; Expansin; 1.
DR   Gene3D; 2.60.40.760; Expansin, cellulose-binding-like domain; 1.
DR   Gene3D; 2.40.40.10; RlpA-like domain; 1.
DR   InterPro; IPR007118; Expan_Lol_pI.
DR   InterPro; IPR002963; Expansin.
DR   InterPro; IPR007112; Expansin/allergen_DPBB_dom.
DR   InterPro; IPR007117; Expansin_CBD.
DR   InterPro; IPR036749; Expansin_CBD_sf.
DR   InterPro; IPR009009; RlpA-like_DPBB.
DR   InterPro; IPR036908; RlpA-like_sf.
DR   PANTHER; PTHR31867; EXPANSIN-A15; 1.
DR   Pfam; PF03330; DPBB_1; 1.
DR   Pfam; PF01357; Expansin_C; 1.
DR   PRINTS; PR01226; EXPANSIN.
DR   PRINTS; PR01225; EXPANSNFAMLY.
DR   SMART; SM00837; DPBB_1; 1.
DR   SUPFAM; SSF50685; Barwin-like endoglucanases; 1.
DR   SUPFAM; SSF49590; PHL pollen allergen; 1.
DR   PROSITE; PS50843; EXPANSIN_CBD; 1.
DR   PROSITE; PS50842; EXPANSIN_EG45; 1.
PE   2: Evidence at transcript level;
KW   Cell wall; Cell wall biogenesis/degradation; Membrane; Reference proteome;
KW   Secreted; Signal.
FT   SIGNAL          1..21
FT                   /evidence="ECO:0000255"
FT   CHAIN           22..267
FT                   /note="Expansin-A23"
FT                   /id="PRO_0000252002"
FT   DOMAIN          57..172
FT                   /note="Expansin-like EG45"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00079"
FT   DOMAIN          182..262
FT                   /note="Expansin-like CBD"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00078"
SQ   SEQUENCE   267 AA;  28574 MW;  0B30089563F3F521 CRC64;
     MAPARAFVLV LLAVASASTA AANTATTTPT NPVAAPTQWQ KAHATFYGGA DASGTMGGAC
     GYGNLYSQGY GTRNAALSTA LFNDGASCGQ CYKIACDRKR APQWCKPGVT VTITATNFCP
     PNWNLPSDNG GWCNPPRPHF DMAQPAWEKI GVYSAGIIPV IYQRVPCVKK GGLRFTINGH
     DYFQLVLVTN VAAAGSIKSM EVMGSNTADW MPMARNWGAQ WHSLAYLTGQ GLSFRVTNTD
     DQTLVFTNVV PPGWKFGQTF ASKLQFK
//