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SPS2

Gene
SPS2
Protein
Probable sucrose-phosphate synthase 2
Organism
Craterostigma plantagineum
Length
1081 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
120.934 kDa
Sequence
MAGNEWINGYLEAILDTGASAIDENSGGGKTAAAQKGRHHDHHFNPTKYFVEEVVSGVDESDLHRTWIKVVATRNTRERSSRLENMCWRIWHLTRKKKQLEWEDLQRLAARKWEREQGRKDVTEDMSEDLSEGEKGDVMGETPVALDSPRGNKKYHRNFSNLEVWSDSNKEKKLYIVLISLHGLVRGENMELGRDSDTGGQIKYVVEVARALAKMPGVYRVDLFTRQISSPEVDWSYAEPTEMLSSSSTTAGEAHEPEEEEEEEDLGEGSGAYIIRIPFGPRDKYLRKELLWPHIQEFVDGALSHIVNMSKALGDQIGGGQPVWPYVIHGHYADAGDSAALLSGALNVPMVLTGHSLGRNKLEQLLKQGRQTKEDINSMYRIMRRIEAEELSLDAAELVITSTKQEIEEQWGLYDGFDVKLERVLRARARRGVNCHGRFMPRMAVIPPGMDFSNVVVPEDGSEGDGDLATLTEATSPRSVPAIWADVMRFLTNPHKPMILALSRPDPKKNITTLVKAFGECRPLRELANLTLIMGNRDDIDEMSGGNASVLTTVLKLIDRYDLYGQVAFPKHHKQSDVPEIYRLASKTKGVFINPAFIEPFGLTLIEAAAHGLPMVATKNGGPVDIHRALNNGLLVDPHDQDAIANALLKLVSEKNLWNECRKNGLKNIHLFSWPEHCRTYLTRVAACRMRHPQWKTDTPLDETAIDDSLNDSLKDVLDMSLRLSVDGEKMSVNESSSVELPGGEAAELPDQVRRVLNKIKRQDSGPAQREAEGKAGDVPGKYPMLRRRRKLFVIALDCYDLKGNPDKKMILSIQEIVRAVRLDPQMSRFSGFALSTAMPVAELADFLKAGDVKVNDFDALICSSGSEVYYPGTYGEESGKLYLDPDYTSHIEYRWGGDGLKKTISKLMNTAEDGKSSVASSPIELVAKSSNSHCLSYAIKDPSKAKKVDDMRQKLRMRGLRCHLMYCRNSTSMQVVPLLASRSQALRYLFVRWRLSVANMYVILGETGDTDYEELISGTHKTLIMRGVVEKGSEELLRTAGSYLRDDVIPQDTPLIAYADKGAKAEHIVETFRQLSKAGM

Gene
SPS2
Protein
Probable sucrose-phosphate synthase 2
Organism
Arabidopsis thaliana
Length
1047 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. Required for nectar secretion.
Similarity
Belongs to the glycosyltransferase 1 family.
Mass
116.966 kDa
Sequence
MVGNDWVNSYLEAILAAEPGIANSKPPGTGDSKSSLLLRERGHFSPTRYFVEEVITGFDETDLHRSWVQAAATRSPQERNTRLENLCWRIWNLARQKKQVEGKNAKREAKREREREKARREVTAEMSEDFSEGEKADLPGEIPTPSDNNTKGRMSRISSVDVFENWFAQHKEKKLYIVLISLHGLIRGENMELGRDSDTGGQVKYVVELARALGSMPGVYRVDLLTRQVTAPDVDSSYSEPSEMLNPIDTDIEQENGESSGAYIIRIPFGPKDKYVPKELLWPHIPEFVDRALSHIMQISKVLGEQIGGGQQVWPVSIHGHYADAGDSTALLSGALNVPMVFTGHSLGRDKLEQLLKQGRPKEEINSNYKIWRRIEAEELCLDASEIVITSTRQEVDEQWRLYDGFDPVLERKLRARMKRGVSCLGRFMPRMVVIPPGMEFHHIVPHDVDADGDDENPQTADPPIWSEIMRFFSNPRKPMILALARPDPKKNLVTLVKAFGECRPLRELANLTLIMGNRNDIDELSSTNSSVLLSILKLIDKYDLYGQVAMPKHHQQSDVPEIYRLAAKTKGVFINPAFIEPFGLTLIEAGAHGLPTVATINGGPVDIHRVLDNGLLVDPHDQQAIADALLKLVSDRQLWGRCRQNGLNNIHLFSWPEHCKTYLARIASCKQRHPKWQRVEFENSDSDSPSDSLRDINDISLNLKLSLDGEKSGSNNGVDTNLDAEDRAAERKAEVEKAVSTLAQKSKPTEKFDSKMPTLKRRKNIFVISVDCSATSDLLAVVKTVIDAAGRGSSTGFILSTSMTISETHTALLSGGLKPQDFDAVICSSGSELYFTSSGSEDKTALPYTLDADYHSHIEFRWGGESLRKTLIRWISSVEEKKKTKKGEILVEDESSSTNYCLSFKVKDPALMPPMKELRKLMRNQALRCNAVYCQNGARLNVIPVLASRSQALRYLLVRWGIDLSNMVVFVGDSGDTDYEGLLGGIHKTVILKGLASDLREQPGNRSYPMEDVTPLNSPNITEAKECGRDAIKVALEKLGISLLKP

Gene
SPS2
Protein
Probable sucrose-phosphate synthase 2
Organism
Oryza sativa subsp. japonica
Length
963 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
107.986 kDa
Sequence
MAGNDNWINSYLDAILDAGKAAIGGDRPSLLLRERGHFSPARYFVEEVITGYDETDLYKTWLRANAMRSPQERNTRLENMTWRIWNLARKKKEFEKEEACRLLKRQPEAEKLRTDTNADMSEDLFEGEKGEDAGDPSVAYGDSTTGSSPKTSSIDKLYIVLISLHGLVRGENMELGRDSDTGGQVKYVVELAKALSSSPGVYRVDLLTRQILAPNFDRSYGEPTEMLVSTSFKNSKQEKGENSGAYIIRIPFGPKDKYLAKEHLWPFIQEFVDGALGHIVRMSKTIGEEIGCGHPVWPAVIHGHYASAGIAAALLSGSLNIPMAFTGHFLGKDKLEGLLKQGRHSREQINMTYKIMCRIEAEELSLDASEIVIASTRQEIEEQWNLYDGFEVILARKLRARVKRGANCYGRYMPRMVIIPPGVEFGHIIHDFEMDGEEENPCPASEDPPIWSQIMRFFTNPRKPMILAVARPYPEKNITSLVKAFGECRPLRELANLTLIMGNREAISKMNNMSAAVLTSVLTLIDEYDLYGQVAYPKHHKHSEVPDIYRLAARTKGAFVNVAYFEQFGVTLIEAAMNGLPIIATKNGAPVEINQVLNNGLLVDPHDQNAIADALYKLLSDKQLWSRCRENGLKNIHQFSWPEHCKNYLSRILTLGPRSPAIGGKQEQKAPISGRKHIIVISVDSVNKEDLVRIIRNTIEVTRTEKMSGSTGFVLSTSLTISEIRSLLVSAGMLPTVFDAFICNSGSNIYYPLYSGDTPSSSQVTPAIDQNHQAHIEYRWGGEGLRKYLVKWATSVVERKGRIERQIIFEDPEHSSTYCLAFRVVNPNHLPPLKELRKLMRIQSLRCNALYNHSATRLSVVPIHASRSQALRYLCIRWGIELPNVAVLVGESGDSDYEELLGGLHRTVILKGEFNIPANRIHTVRRYPLQDVVALDSSNIIGIEGYSTDDMKSALQQIGVLTQ

Gene
SPS2
Protein
Sporulation-specific protein 2
Organism
Saccharomyces cerevisiae (strain ATCC 204508 / S288c)
Length
502 amino acids
Function
Involved in middle stages of meiosis. Redundant with SPS22 for the organization of the beta-glucan layer of the spore wall.
Similarity
Belongs to the SPS2 family.
Mass
55.939 kDa
Sequence
MPIWKTQTFFTSISVIQIVNKETKVSTKKEKDSMLNQLNTILRFLFLFLQLIKSSAAVEPNGGPNILDHNIMLVNTNATIPKKEQTDFEVISPTKQTQVDEDCKKGLYHIENAGNLIELQAKCWKVVGNIEISSNYSGSLIDLGLIREIEGDLIIKNNKHIFRIQGYNLESLGKLELDSLTSFVSLDFPALKEVETVDWRVLPILSSVVINGNIKKIKNIIISDTALTSIDYFNNVKKVDIFNINNNRFLENLFASLESVTKQLTVHSNAKELELDLSNLHTVENMTIKDVSEIKLAKLSSVNSSLEFIENQFSSLELPLLAKVQGTLGLIDNKNLKKLNFSNATDIQGGLMIANNTELAKIDFFPKLRQIGGAIYFEGSFDKIDLPELKLVKGSAYIKSSSEELNCEEFTSPKAGRSIIRGGKIECTSGMKSKMLNVDEEGNVLGKQETDNDNGKKEKGKNGAKSQGSSKKMENSAPKNIFIDAFKMSVYAVFTVLFSIIF

Gene
SPS2
Protein
Solanesyl diphosphate synthase 2, chloroplastic
Organism
Arabidopsis thaliana
Length
417 amino acids
Function
Involved in providing solanesyl diphosphate for plastoquinone-9 (PQ-9) formation in plastids (PubMed:15784989, PubMed:23913686) (Probable). Catalyzes the elongation of the prenyl side chain of PQ-9 in plastids (PubMed:23913686). Contributes to the biosynthesis of plastochromanol-8 (PC-8) in plastids (PubMed:23913686). Does not contribute to the synthesis of tocopherol or ubiquinone (PubMed:23913686). PQ-9 and PC-8 are lipophylic antioxidant that act as protectant against photooxidative stress under high light stress conditions (PubMed:23913686). Prefers geranylgeranyl diphosphate to farnesyl diphosphate as substrate (PubMed:15784989). No activity with geranyl diphosphate or dimethylallyl diphosphate as substrate (PubMed:15784989).
Similarity
Belongs to the FPP/GGPP synthase family.
Mass
46.045 kDa
Sequence
MMMSCRNIDLGTSVLDHSCSSSSTSRRFLFGNSSKTVCMIGGRSCVGNLVFLRRDLATCRAVPAKSKENSLVNGIGQDQTVMLNLRQESRKPISLETLFEVVADDLQRLNDNLLSIVGAENPVLISAAEQIFSAGGKRMRPGLVFLVSRATAELAGLKELTVEHRRLGEIIEMIHTASLIHDDVLDESDMRRGRETVHELFGTRVAVLAGDFMFAQASWYLANLENLEVIKLISQVIKDFASGEIKQASSLFDCDVKLDDYMLKSYYKTASLVAASTKGAAIFSKVESKVAEQMYQFGKNLGLSFQVVDDILDFTQSTEQLGKPAANDLAKGNITAPVIFALENEPRLREIIESEFCEPGSLEEAIEIVRNRGGIKKAQELAKEKAELALKNLNCLPRSGFRSALEDMVMFNLERID

Gene
SPS2
Protein
Solanesyl-diphosphate synthase 2, chloroplastic
Organism
Oryza sativa subsp. japonica
Length
403 amino acids
Function
Involved in providing solanesyl diphosphate for plastoquinone-9 (PQ-9) formation. Geranyl diphosphate is the preferred substrate.
Similarity
Belongs to the FPP/GGPP synthase family.
Mass
44.116 kDa
Sequence
MLSVSCPRVYMSRKALDFGQLASCRCRWAGRSGMRVAPRRRMPCVCFVASPSQPGLAAVDVPAEAISSARTTTMIPERISVSSLLEVVSDDLLKLNNNLKSLVGAENPVLVSAAEQIFGAGGKRLRPALVFLVSRATAELAGLLELTTEHQRLAEIIEMIHTASLIHDDVIDDSGMRRGKETIHQLYGTRVAVLAGDFMFAQSSWFLANLENIEVIKLISQVIKDFASGEIKQASTLFDCDVTLDDYLLKSYYKTASLLASSTRSAAIFSGVSTTICEQMYEYGRNLGLSFQVVDDILDFTQSAEQLGKPAGSDLAKGNLTAPVIFALQDEPKLREIIDSEFSESDSLATAIDLVHRSGGIRRAQELAKEKGDLALQNLQCLPKSQFRSTLENVVKYNLQRID

Gene
Sps2
Protein
Selenide, water dikinase 2
Organism
Drosophila melanogaster
Length
370 amino acids
Function
Synthesizes selenophosphate from selenide and ATP.
Similarity
Belongs to the selenophosphate synthase 1 family. Class I subfamily.
Mass
41.131 kDa
Sequence
MFQPEKHGLEPDFQLTKFTTHTGUSCKIPQKVLEKYLRGTEIENKNNDGYLIGSGMDCAVIPLKRHKDYLLIQTVDFFYPMVNDPELLGRIALANVLSDVYAVGVTQFDTVEMIVSTSTSFSEKERDVVIGLVMKGFQNSLKANGYRNTPLIIRQLKINPWCIIGGIATSVCRSEEIILPSNAQPGDVLVLTKPLGGQMAMDAHLWQLNQTEKYKKLLSECSDADIKETFEIAVKSMTYLNKNAALLMHKYQAHCATDITGFGLLGHANNLAQFQKEKVLFQINKLPIIKNVLKFSTLVGQSTKFRSGRSVETSGGLLICLPADAADKFCRDFEEATNGEQKSFQIGHVTAANESDAVLCEDVEFIEVSL