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SPS3

Gene
SPS3
Protein
Probable sucrose-phosphate synthase 3
Organism
Arabidopsis thaliana
Length
1062 amino acids
Function
Plays a role in photosynthetic sucrose synthesis by catalyzing the rate-limiting step of sucrose biosynthesis from UDP-glucose and fructose- 6-phosphate. Involved in the regulation of carbon partitioning in the leaves of plants. May regulate the synthesis of sucrose and therefore play a major role as a limiting factor in the export of photoassimilates out of the leaf. Plays a role for sucrose availability that is essential for plant growth and fiber elongation.
Similarity
Belongs to the glycosyltransferase 1 family.
Mass
119.476 kDa
Sequence
MAGNEWINGYLEAILDSQAQGIEETQQKPQASVNLREGDGQYFNPTKYFVEEVVTGVDETDLHRTWLKVVATRNSRERNSRLENMCWRIWHLTRKKKQLEWEDSQRIANRRLEREQGRRDATEDLSEDLSEGEKGDGLGEIVQPETPRRQLQRNLSNLEIWSDDKKENRLYVVLISLHGLVRGENMELGSDSDTGGQVKYVVELARALARMPGVYRVDLFTRQICSSEVDWSYAEPTEMLTTAEDCDGDETGESSGAYIIRIPFGPRDKYLNKEILWPFVQEFVDGALAHILNMSKVLGEQIGKGKPVWPYVIHGHYADAGDSAALLSGALNVPMVLTGHSLGRNKLEQLLKQGRQSKEDINSTYKIKRRIEAEELSLDAAELVITSTRQEIDEQWGLYDGFDVKLEKVLRARARRGVNCHGRFMPRMAVIPPGMDFTNVEVQEDTPEGDGDLASLVGGTEGSSPKAVPTIWSEVMRFFTNPHKPMILALSRPDPKKNITTLLKAFGECRPLRELANLTLIMGNRDDIDELSSGNASVLTTVLKLIDKYDLYGSVAYPKHHKQSDVPDIYRLAANTKGVFINPALVEPFGLTLIEAAAHGLPMVATKNGGPVDIHRALHNGLLVDPHDQEAIANALLKLVSEKNLWHECRINGWKNIHLFSWPEHCRTYLTRIAACRMRHPQWQTDADEVAAQDDEFSLNDSLKDVQDMSLRLSMDGDKPSLNGSLEPNSADPVKQIMSRMRTPEIKSKPELQGKKQSDNLGSKYPVLRRRERLVVLAVDCYDNEGAPDEKAMVPMIQNIIKAVRSDPQMAKNSGFAISTSMPLDELTRFLKSAKIQVSEFDTLICSSGSEVYYPGGEEGKLLPDPDYSSHIDYRWGMEGLKNTVWKLMNTTAVGGEARNKGSPSLIQEDQASSNSHCVAYMIKDRSKVMRVDDLRQKLRLRGLRCHPMYCRNSTRMQIVPLLASRSQALRYLFVRWRLNVANMYVVVGDRGDTDYEELISGTHKTVIVKGLVTLGSDALLRSTDLRDDIVPSESPFIGFLKVDSPVKEITDIFKQLSKATA

Gene
SPS3
Protein
Probable sucrose-phosphate synthase 3
Organism
Oryza sativa subsp. japonica
Length
977 amino acids
Function
Plays a role in photosynthetic sucrose synthesis by catalyzing the rate-limiting step of sucrose biosynthesis from UDP-glucose and fructose- 6-phosphate. Involved in the regulation of carbon partitioning in the leaves of plants. May regulate the synthesis of sucrose and therefore play a major role as a limiting factor in the export of photoassimilates out of the leaf. Plays a role for sucrose availability that is essential for plant growth and fiber elongation (By similarity).
Similarity
Belongs to the glycosyltransferase 1 family.
Mass
109.462 kDa
Sequence
MYGNDNWINSYLDAILDAGKGAAASASASAVGGGGGAGDRPSLLLRERGHFSPARYFVEEVITGYDETDLYKTWLRANAMRSPQEKNTRLENMTWRIWNLARKKKELEKEEANRLLKRRLETERPRVETTSDMSEDLFEGEKGEDAGDPSVAYGDSTTGNTPRISSVDKLYIVLISLHGLVRGENMELGRDSDTGGQVKYVVELAKALSSCPGVYRVDLFTRQILAPNFDRSYGEPVEPLASTSFKNFKQERGENSGAYIIRIPFGPKDKYLAKEHLWPFIQEFVDGALSHIVKMSRAIGEEISCGHPAWPAVIHGHYASAGVAAALLSGALNVPMVFTGHFLGKDKLEELLKQGRQTREQINMTYKIMCRIEAEELALDASEIVIASTRQEIEEQWNLYDGFEVILARKLRARVKRGANCYGRYMPRMVIIPPGVEFGHMIHDFDMDGEEDGPSPASEDPSIWSEIMRFFTNPRKPMILAVARPYPEKNITTLVKAFGECRPLRELANLTLIMGNREAISKMHNMSAAVLTSVLTLIDEYDLYGQVAYPKRHKHSEVPDIYRLAVRTKGAFVNVPYFEQFGVTLIEAAMHGLPVIATKNGAPVEIHQVLDNGLLVDPHDQHAIADALYKLLSEKQLWSKCRENGLKNIHQFSWPEHCKNYLSRISTLGPRHPAFASNEDRIKAPIKGRKHVTVIAVDSVSKEDLIRIVRNSIEAARKENLSGSTGFVLSTSLTIGEIHSLLMSAGMLPTDFDAFICNSGSDLYYPSCTGDTPSNSRVTFALDRSYQSHIEYHWGGEGLRKYLVKWASSVVERRGRIEKQVIFEDPEHSSTYCLAFKVVNPNHLPPLKELQKLMRIQSLRCHALYNHGATRLSVIPIHASRSKALRYLSVRWGIELQNVVVLVGETGDSDYEELFGGLHKTVILKGEFNTSANRIHSVRRYPLQDVVALDSPNIIGIEGYGTDDMRSALKQLDIRAQ

Gene
SPS3
Protein
Solanesyl diphosphate synthase 3, chloroplastic/mitochondrial
Organism
Arabidopsis thaliana
Length
422 amino acids
Function
May be involved in the supply of solanesyl diphosphate for ubiquinone-9 (UQ-9) biosynthesis in mitochondria (PubMed:21950843). Synthesizes C25 to C45 medium / long-chain products depending on the type of substrate available (PubMed:21220764). Can use geranyl diphosphate, farnesyl diphosphate or geranylgeranyl diphosphate as substrates, but not dimethylallyl diphosphate (PubMed:11069698, PubMed:17877699, PubMed:21220764).
Similarity
Belongs to the FPP/GGPP synthase family.
Mass
46.401 kDa
Sequence
MLFTRSVARISSKFLRNRSFYGSSQSLASHRFAIIPDQGHSCSDSPHKGYVCRTTYSLKSPVFGGFSHQLYHQSSSLVEEELDPFSLVADELSLLSNKLREMVLAEVPKLASAAEYFFKRGVQGKQFRSTILLLMATALNVRVPEALIGESTDIVTSELRVRQRGIAEITEMIHVASLLHDDVLDDADTRRGVGSLNVVMGNKMSVLAGDFLLSRACGALAALKNTEVVALLATAVEHLVTGETMEITSSTEQRYSMDYYMQKTYYKTASLISNSCKAVAVLTGQTAEVAVLAFEYGRNLGLAFQLIDDILDFTGTSASLGKGSLSDIRHGVITAPILFAMEEFPQLREVVDQVEKDPRNVDIALEYLGKSKGIQRARELAMEHANLAAAAIGSLPETDNEDVKRSRRALIDLTHRVITRNK

Gene
SPS3
Protein
Probable solanesyl-diphosphate synthase 3, chloroplastic
Organism
Oryza sativa subsp. japonica
Length
414 amino acids
Function
Involved in providing solanesyl diphosphate for plastoquinone-9 (PQ-9) formation.
Similarity
Belongs to the FPP/GGPP synthase family.
Mass
44.374 kDa
Sequence
MAAPSSLASSSHLSRRATAAASPSIPPPSPPPPPQRLRCGWVGRAAPPTRRAPGVCSVVSPSKPGVAAVDVPAATIPDAAATGVGVAERISVSSLLEVVADDLLKLNNNLKSLVGAENPVLVSAAEQIFGAGGKRLRPALVFLVSRATAELAGLLELTTEHQRLAEIIEMIHTASLIHDDVIDDSGMRRGKETIHQLYGTRVAVLAGDFMFAQSSWFLANLENIEVIKLISQVIKDFASGEIKQASTLFDCDITLDDYLLKSYYKTASLIAASTRSAAIFSGVSTAICEQMYEYGRNLGLSFQVVDDILDFTQSAEQLGKPAGSDLAKGNLTAPVIFALQDEPQLREIIDSEFSETNSLATAIELVHRSGGIKRAHELAREKGEIAIQSLQCLPRSEFRSTLENMVKYNLERID