Skip Header

You are using a version of browser that may not display all the features of this website. Please consider upgrading your browser.
Protein

Probable sucrose-phosphate synthase 1

Gene

SPS1

Organism
Craterostigma plantagineum (Blue gem) (Torenia plantagineum)
Status
Reviewed-Annotation score: -Experimental evidence at transcript leveli

Functioni

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).By similarity

Catalytic activityi

UDP-glucose + D-fructose 6-phosphate = UDP + sucrose 6(F)-phosphate.

Enzyme regulationi

Activity is regulated by phosphorylation and moderated by concentration of metabolites and light.By similarity

Pathwayi: sucrose biosynthesis

This protein is involved in step 1 of the subpathway that synthesizes sucrose from D-fructose 6-phosphate and UDP-alpha-D-glucose.
Proteins known to be involved in the 2 steps of the subpathway in this organism are:
  1. Probable sucrose-phosphate synthase 2 (SPS2), Probable sucrose-phosphate synthase 1 (SPS1)
  2. no protein annotated in this organism
This subpathway is part of the pathway sucrose biosynthesis, which is itself part of Glycan biosynthesis.
View all proteins of this organism that are known to be involved in the subpathway that synthesizes sucrose from D-fructose 6-phosphate and UDP-alpha-D-glucose, the pathway sucrose biosynthesis and in Glycan biosynthesis.

GO - Molecular functioni

GO - Biological processi

Keywordsi

Molecular functionGlycosyltransferase, Transferase

Enzyme and pathway databases

UniPathwayiUPA00371; UER00545

Protein family/group databases

CAZyiGT4 Glycosyltransferase Family 4

Names & Taxonomyi

Protein namesi
Recommended name:
Probable sucrose-phosphate synthase 1 (EC:2.4.1.14)
Alternative name(s):
UDP-glucose-fructose-phosphate glucosyltransferase 1
Gene namesi
Name:SPS1
OrganismiCraterostigma plantagineum (Blue gem) (Torenia plantagineum)
Taxonomic identifieri4153 [NCBI]
Taxonomic lineageiEukaryotaViridiplantaeStreptophytaEmbryophytaTracheophytaSpermatophytaMagnoliophytaeudicotyledonsGunneridaePentapetalaeasteridslamiidsLamialesLinderniaceaeCraterostigma

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00002046691 – 1054Probable sucrose-phosphate synthase 1Add BLAST1054

Interactioni

Subunit structurei

Homodimer or homotetramer.By similarity

Structurei

3D structure databases

ProteinModelPortaliO04932
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Belongs to the glycosyltransferase 1 family.Curated

Family and domain databases

CDDicd16419 HAD_SPS, 1 hit
Gene3Di3.40.50.10002 hits
InterProiView protein in InterPro
IPR001296 Glyco_trans_1
IPR023214 HAD_sf
IPR006380 SPP_N
IPR035659 SPS_C
IPR000368 Sucrose_synth
IPR012819 SucrsPsyn_pln
PfamiView protein in Pfam
PF00534 Glycos_transf_1, 1 hit
PF05116 S6PP, 1 hit
PF00862 Sucrose_synth, 1 hit
TIGRFAMsiTIGR02468 sucrsPsyn_pln, 1 hit

Sequencei

Sequence statusi: Complete.

O04932-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MAGNDWINSY LEAILDVGPG IDEAKGSLLL RERGRFSPTR YFVEEVVSGF
60 70 80 90 100
DETDLHRSWI RAQATRSPQE RNTRLENMCW RIWNLARQKK QLENEEAQRM
110 120 130 140 150
AKRRLERERG RREAVADMSE DLSEGEKGDI VVDHSHHGES NRGRLPRINS
160 170 180 190 200
VDTMEAWMNQ QKGKKLYIVL ISLHGLIRGE NMELGRDSDT GGQVKYVVEL
210 220 230 240 250
ARALGSMPGV YRVDLLTRQV SSPEVDWSYG EPTEMLPPRN SENMMDEMGE
260 270 280 290 300
SSGSYIVRIP FGPKDKYVAK ELLWPHIPEF VDGALGHIIQ MSKVLGEQIG
310 320 330 340 350
NGHPIWPAAI HGHYADAGDS AALLSGALNV PMLFTGHSLG RDKLEQLLRQ
360 370 380 390 400
GRLSRDEINS TYKIMRRIEA EELSLDASEM VITSTRQEIE EQWRLYDGFD
410 420 430 440 450
PILERKLRAR IKRNVSCYGR FMPRMMVIPP GMEFHHIVPH DGDLDAEPEF
460 470 480 490 500
NEDSKSPDPH IWTEIMRFFS NPRKPMILAL ARPDPKKNLT TLVKAFGECK
510 520 530 540 550
PLRELANLTL IMGNRDNIDE MSGTNASVLL SILKMIDKYD LYGLVAYPKH
560 570 580 590 600
HKQSDVPDIY RLAAKTKGVF INPAFIEPFG LTLIEAAAHG LPIVATKNGG
610 620 630 640 650
PVDIHRVLDN GILVDPHNQE SIADALLKLV AEKHLWAKCR ANGLKNIHLF
660 670 680 690 700
SWPEHCKSYL SKLASCKPRQ PRWLRNEEDD DENSESDSPS DSLRDIQDIS
710 720 730 740 750
LNLKFSFDGD KNESREKGGG SHPDDRASKI ENAVLEWSKG VAKGPQRSMS
760 770 780 790 800
IEKGEHNSNA GKFPALRRRK IMFVIAVDCK PSAGLSESVR KVFAAVENER
810 820 830 840 850
AEGSVGFILA TSFNISEIRH FLVSEKLNPT DFDAFICNSG GDLYYSSHHS
860 870 880 890 900
EDNPFVVDLY YHSQIEYRWG GEGLRKTLVR WAASITDKKG EKEEHVIIED
910 920 930 940 950
EETSADYCYS FKVQKPNVVP PVKEARKVMR IQALRCHVVY CQNGNKINVI
960 970 980 990 1000
PVLASRAQAL RYLYLRWGME LSKTVVVVGE SGDTDYEEML GGVHKTVVLS
1010 1020 1030 1040 1050
GVCTTATNLL HANRSYPLAD VVCFDDLNIF KTHNEECSST DLRALLEEHG

AFKA
Length:1,054
Mass (Da):119,020
Last modified:July 1, 1997 - v1
Checksum:i58558A387AE78BC4
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
Y11821 mRNA Translation: CAA72506.1
PIRiT09833

Similar proteinsi

Entry informationi

Entry nameiSPSA1_CRAPL
AccessioniPrimary (citable) accession number: O04932
Entry historyiIntegrated into UniProtKB/Swiss-Prot: December 15, 1998
Last sequence update: July 1, 1997
Last modified: February 28, 2018
This is version 73 of the entry and version 1 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programPlant Protein Annotation Program