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SSG4_ORYSJ
ID   SSG4_ORYSJ              Reviewed;        2135 AA.
AC   W0RYD3; Q0JQ65; Q5VRT8;
DT   05-JUN-2019, integrated into UniProtKB/Swiss-Prot.
DT   19-MAR-2014, sequence version 1.
DT   03-AUG-2022, entry version 37.
DE   RecName: Full=Protein SUBSTANDARD STARCH GRAIN 4, chloroplastic {ECO:0000303|PubMed:24335509};
DE   AltName: Full=Translocon at the inner-envelope- membrane of chloroplasts SSG4 {ECO:0000305};
DE   Flags: Precursor;
GN   Name=SSG4 {ECO:0000303|PubMed:24335509};
GN   OrderedLocusNames=Os01g0179400 {ECO:0000312|EMBL:BAS70711.1},
GN   LOC_Os01g08420 {ECO:0000305};
GN   ORFNames=P0406H10.19 {ECO:0000312|EMBL:BAD67835.1};
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 [MRNA], FUNCTION, SUBCELLULAR LOCATION, TISSUE
RP   SPECIFICITY, AND MUTAGENESIS OF GLY-1924.
RX   PubMed=24335509; DOI=10.1104/pp.113.229591;
RA   Matsushima R., Maekawa M., Kusano M., Kondo H., Fujita N., Kawagoe Y.,
RA   Sakamoto W.;
RT   "Amyloplast-localized SUBSTANDARD STARCH GRAIN4 protein influences the size
RT   of starch grains in rice endosperm.";
RL   Plant Physiol. 164:623-636(2014).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=cv. Nipponbare;
RX   PubMed=12447438; DOI=10.1038/nature01184;
RA   Sasaki T., Matsumoto T., Yamamoto K., Sakata K., Baba T., Katayose Y.,
RA   Wu J., Niimura Y., Cheng Z., Nagamura Y., Antonio B.A., Kanamori H.,
RA   Hosokawa S., Masukawa M., Arikawa K., Chiden Y., Hayashi M., Okamoto M.,
RA   Ando T., Aoki H., Arita K., Hamada M., Harada C., Hijishita S., Honda M.,
RA   Ichikawa Y., Idonuma A., Iijima M., Ikeda M., Ikeno M., Ito S., Ito T.,
RA   Ito Y., Ito Y., Iwabuchi A., Kamiya K., Karasawa W., Katagiri S.,
RA   Kikuta A., Kobayashi N., Kono I., Machita K., Maehara T., Mizuno H.,
RA   Mizubayashi T., Mukai Y., Nagasaki H., Nakashima M., Nakama Y.,
RA   Nakamichi Y., Nakamura M., Namiki N., Negishi M., Ohta I., Ono N., Saji S.,
RA   Sakai K., Shibata M., Shimokawa T., Shomura A., Song J., Takazaki Y.,
RA   Terasawa K., Tsuji K., Waki K., Yamagata H., Yamane H., Yoshiki S.,
RA   Yoshihara R., Yukawa K., Zhong H., Iwama H., Endo T., Ito H., Hahn J.H.,
RA   Kim H.-I., Eun M.-Y., Yano M., Jiang J., Gojobori T.;
RT   "The genome sequence and structure of rice chromosome 1.";
RL   Nature 420:312-316(2002).
RN   [3]
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   [4]
RP   GENOME REANNOTATION.
RC   STRAIN=cv. Nipponbare;
RX   PubMed=18089549; DOI=10.1093/nar/gkm978;
RG   The rice annotation project (RAP);
RT   "The rice annotation project database (RAP-DB): 2008 update.";
RL   Nucleic Acids Res. 36:D1028-D1033(2008).
RN   [5]
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   [6]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] OF 1107-2135.
RC   STRAIN=cv. Nipponbare;
RX   PubMed=12869764; DOI=10.1126/science.1081288;
RG   The rice full-length cDNA consortium;
RT   "Collection, mapping, and annotation of over 28,000 cDNA clones from
RT   japonica rice.";
RL   Science 301:376-379(2003).
CC   -!- FUNCTION: Part of the inner chloroplast membrane translocon complex
CC       (TIC) which associates with the outer chloroplast membrane translocon
CC       complex (TOC) and forms a supercomplex involved in protein precursor
CC       import into the chloroplast stroma (By similarity). Required for the
CC       regulation of starch granule size in amyloplasts (PubMed:24335509).
CC       {ECO:0000250|UniProtKB:F4ISL7, ECO:0000269|PubMed:24335509}.
CC   -!- SUBUNIT: Part of the TIC complex, which can interact with components of
CC       the TOC complex to form a larger import complex.
CC       {ECO:0000250|UniProtKB:F4ISL7}.
CC   -!- SUBCELLULAR LOCATION: Plastid, chloroplast inner membrane
CC       {ECO:0000250|UniProtKB:F4ISL7}; Single-pass membrane protein
CC       {ECO:0000255}. Plastid, chloroplast intermembrane space
CC       {ECO:0000250|UniProtKB:F4ISL7}. Plastid, chloroplast
CC       {ECO:0000269|PubMed:24335509}. Plastid, amyloplast
CC       {ECO:0000269|PubMed:24335509}.
CC   -!- TISSUE SPECIFICITY: Highly expressed in third leaf and developing seeds
CC       (PubMed:24335509). Expressed in anthers, pistils, flag leaves and young
CC       panicles (PubMed:24335509). {ECO:0000269|PubMed:24335509}.
CC   -!- SIMILARITY: Belongs to the TamB family. {ECO:0000305}.
CC   -!- SEQUENCE CAUTION:
CC       Sequence=BAD67835.1; Type=Erroneous gene model prediction; Evidence={ECO:0000305};
CC       Sequence=BAF04113.2; Type=Erroneous gene model prediction; Evidence={ECO:0000305};
CC       Sequence=BAG88743.1; Type=Erroneous initiation; Note=Truncated N-terminus.; Evidence={ECO:0000305};
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DR   EMBL; AB856288; BAO23504.1; -; mRNA.
DR   EMBL; AP002524; BAD67835.1; ALT_SEQ; Genomic_DNA.
DR   EMBL; AP008207; BAF04113.2; ALT_SEQ; Genomic_DNA.
DR   EMBL; AP014957; BAS70711.1; -; Genomic_DNA.
DR   EMBL; AK063507; BAG88743.1; ALT_INIT; mRNA.
DR   RefSeq; XP_015619226.1; XM_015763740.1.
DR   AlphaFoldDB; W0RYD3; -.
DR   STRING; 4530.OS01T0179400-01; -.
DR   PaxDb; W0RYD3; -.
DR   PRIDE; W0RYD3; -.
DR   EnsemblPlants; Os01t0179400-01; Os01t0179400-01; Os01g0179400.
DR   GeneID; 4323878; -.
DR   Gramene; Os01t0179400-01; Os01t0179400-01; Os01g0179400.
DR   KEGG; osa:4323878; -.
DR   eggNOG; ENOG502QTMX; Eukaryota.
DR   HOGENOM; CLU_006278_0_0_1; -.
DR   OrthoDB; 35018at2759; -.
DR   Proteomes; UP000000763; Chromosome 1.
DR   Proteomes; UP000059680; Chromosome 1.
DR   GO; GO:0009501; C:amyloplast; IDA:UniProtKB.
DR   GO; GO:0009706; C:chloroplast inner membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0031972; C:chloroplast intermembrane space; IEA:UniProtKB-SubCell.
DR   GO; GO:0005887; C:integral component of plasma membrane; IEA:InterPro.
DR   GO; GO:0009660; P:amyloplast organization; IMP:UniProtKB.
DR   GO; GO:0009306; P:protein secretion; IEA:InterPro.
DR   InterPro; IPR007452; TamB.
DR   Pfam; PF04357; TamB; 1.
PE   1: Evidence at protein level;
KW   Amyloplast; Chloroplast; Membrane; Plastid; Plastid inner membrane;
KW   Protein transport; Reference proteome; Transit peptide; Transmembrane;
KW   Transmembrane helix; Transport.
FT   TRANSIT         1..42
FT                   /note="Chloroplast"
FT                   /evidence="ECO:0000255"
FT   CHAIN           43..2135
FT                   /note="Protein SUBSTANDARD STARCH GRAIN 4, chloroplastic"
FT                   /id="PRO_0000447405"
FT   TOPO_DOM        43..104
FT                   /note="Stromal"
FT                   /evidence="ECO:0000250|UniProtKB:F4ISL7"
FT   TRANSMEM        105..125
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TOPO_DOM        126..2135
FT                   /note="Chloroplast intermembrane"
FT                   /evidence="ECO:0000250|UniProtKB:F4ISL7"
FT   REGION          1..44
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   REGION          58..89
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   REGION          361..382
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   REGION          401..492
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   REGION          1843..1869
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   COMPBIAS        75..89
FT                   /note="Polar residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   COMPBIAS        401..422
FT                   /note="Polar residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   COMPBIAS        456..490
FT                   /note="Polar residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   MUTAGEN         1924
FT                   /note="G->S: In ssg4; chalky grain with enlarged starch
FT                   grains in endosperm, but reduced amount of starch in seeds;
FT                   variegated leaves with increased size of chloroplasts."
FT                   /evidence="ECO:0000269|PubMed:24335509"
SQ   SEQUENCE   2135 AA;  235113 MW;  75631B5D19A4D214 CRC64;
     MSHCLRASPF LSPPPPLLHP SRRRRHRQGG CIHTSPGTRP LVARARFDPP PLLRLKVSDS
     SDCPAPHHPH SQHQPLLPTR RQQQQPPPPY QALVASLAPL WREGLFLVRC SVFAAALSVA
     AALSWYAQLR ARSFVESRLL PAACAALGEF LQREVHLGRV RSVSPLGITL HTCSIGPHAE
     EFSCAEVPVM KIRVRPFASL RRGRVVVDAV LSEPSALVAQ RKDFSWLGLP APSEGSPKRH
     SGEEGIDYRT KTRRLAREKA AEQWNEERDK AAREAAEMGY IVPSAQSISP SIDEMMEDDG
     PVDTGKSSPH LCPDEMHRKD HHIDAGIDSS SKHADLEKSF GVKARIPGIS FWSRMIPNPS
     RRRYRRKAHS KLISDTDNSS QQRILRRSAY AAVAYFQNEC SGNPDDSLPG PGESSSDGGH
     TNGGGEEGSP NDGPTEYSET TSMDYGELPP EKSNFASTML IGNTDVLNGS SHNQQPSQIS
     SHSWENNEQV SEAPVLKKRK NISEDDYRQE FDFGAFGSCT YAHNWLSFWP FQLKGFPVGF
     NAPSASLNVQ IQKLRSLFAI GPGDNSAELS QGVGQIHPGA VQQTLPITLD SVYFNGGNLM
     LLGYGDQEPR EMKHANGHIK FKNSYNRVHV HVTGNCMEWR QDRTSQGGGY LSTDVFVDIA
     EQTWHANLNV VNAFAPLFER ILEIPVVWNK GRATGEVHLC MSKGDSFPSI HGQLDVKGLA
     FQILDAPSSF SDIVATLSFR GQRVFLHNAS GWFGDAPVEA SGDFGLNPED GEFHLMCQVP
     SVEVNALMKT MKMRPLMFPL AGAVTAVFNC QGPLDAPVFV GSGIVSRKSL SVSGMLPSAA
     SEAVMQNKES GAVAAFDHIP FTHVSANFTF NLDNCVADLY GIRACLLDGG EIRGAGNVWI
     CPEGEGDDSA MDINLSGSIL LDKVLHRYIP GGIQLIPLKI GELNGETRLS GSLIRPKFDI
     KWAAPNAEDS FSDARGNIVI AHDYIMVNSS SVSFDLNTHI QTSYIDDYLL HKEMYQRKKI
     MPLIVEGVDL DLRMRGFEFA HIASSIPFDS PRPLHLKASG RFKFQGKVVK YSQLVDEKNH
     GAIQGTIDQS KLENDVSRLV GEISLSGIKL NQLMLAPQST GFLSISPDSI MLNATGRPDE
     NFSIEVNVPL FFGTHEAIQD GRLLSIFLQK GQLRSNICYH PENLTSLEVR NLPLDELEFA
     SLRGFVQKAE LQLNFQKRRG HGLLSVIRPK FSGMLGESLD IAARWSGDVI TMEKSVLEQA
     NSKYELQGEY VFPGTRDRFP MESQSNGFIE KAMGGHLGSM MSSMGRWRMR LEVPGAEVAE
     MLPLARLLSR STDPAIRSRS KELFMQTLHS VGFNAESLRD QLKALEMYPD WLDDDTIEDI
     TLPGLAELRG YWRGSLDASG GGNGDTMADF DFNGEDWEWG TYKTQRVLAS GSFSNNDGLR
     LDKLFIQKDN ATLHADGSIL GPLTNLHFAV LNFPVGLIPA LVQAIESSTT DSIHFLRQWL
     TPIKGILHME GDLRGTLAKP ECDVQIRLLD GTIGGIDLGR AEVLASVTPT SRFVFDANFE
     PTIQSGHVNI QGSVPVTYVD SNSIEEDLEG GDGKQGIIRI PVWAKDRGLT NDISETRIMR
     DKPDEGWEFQ LAESLKGLSW NMLEPGEVRI NADIKDGGMT LITALSPYSN WLQGYAEVLL
     QVKGTVDHPV VDGSASFHRA TVASPFLRTP LTNFAGNVHV ISNRLCISSM ESRVGRKGRL
     SMKGTLPLHN IEPSANDKIE LKCEVLDIRA KNILSGQVDS QLQVTGSILR PDVSGMIRLS
     HGEAYLPHDK GNGAVATRLS SNKSISVPAG FDQRTVSRDV SHFLGSLSTS PDGQQSETER
     TPEHGSFKPN IDARLNDLKL TFGPELRIVY PLILNFAVSG DLELNGMVHP KYIRPKGVLT
     FENGEVNLVA TQVRLKNDHL NVAKFEPDLG LDPILDLVLV GSEWQFKIQS RASMWQDNLV
     VTSTRSVDQD VLSPSEAAKV FESQLAESLL EGDGQLAFKK LATATLETLM PRIEGKGEFG
     QARWRLVYAP QIPSLLSVDP TVDPLKSLAN NISFATEVEV QLGKRLQASV VRQMKDSEMA
     MQWSLIYQLT SRLRVLFQST PSNRLLFEYS ATSQG
 
 
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