P04713 (SSG1_MAIZE) Reviewed, UniProtKB/Swiss-Prot

Names and origin

Protein names

Recommended name:
Granule-bound starch synthase 1, chloroplastic/amyloplastic
EC=2.4.1.242

Alternative name(s):
Granule-bound starch synthase I
Short name=GBSS-I

Gene names

Name:

WAXY

Organism

Zea mays (Maize)

Taxonomic identifier

4577 [NCBI]

Taxonomic lineage

cellular organisms › Eukaryota › Viridiplantae › Streptophyta › Streptophytina › Embryophyta › Tracheophyta › Euphyllophyta › Spermatophyta › Magnoliophyta › Liliopsida › commelinids › Poales › Poaceae › PACMAD clade › Panicoideae › Andropogoneae › Zea

Protein attributes

Sequence length	605 AA.
Sequence status	Complete.
Sequence processing	The displayed sequence is further processed into a mature form.
Protein existence	Inferred from homology

General annotation (Comments)

Function	Required for the synthesis of amylose in endosperm.
Catalytic activity	NDP-glucose + (1,4-alpha-D-glucosyl)(n) = NDP + (1,4-alpha-D-glucosyl)(n+1).
Pathway	Glycan biosynthesis; starch biosynthesis.
Subcellular location	Plastid › chloroplast. Plastid › amyloplast. Note: Amyloplast or chloroplast, granule-bound.
Sequence similarities	Belongs to the glycosyltransferase 1 family. Bacterial/plant glycogen synthase subfamily.

Ontologies

Keywords
Biological process	Starch biosynthesis
Cellular component	Amyloplast Chloroplast Plastid
Domain	Transit peptide
Molecular function	Glycosyltransferase Transferase
Gene Ontology (GO)
Biological_process	starch biosynthetic process Inferred from electronic annotation. Source: UniProtKB-UniPathway
Cellular_component	amyloplast starch grain Inferred from electronic annotation. Source: EnsemblPlants/Gramene chloroplast Inferred from electronic annotation. Source: UniProtKB-SubCell
Molecular_function	NDP-glucose-starch glucosyltransferase activity Inferred from electronic annotation. Source: EC glycogen (starch) synthase activity Inferred from electronic annotation. Source: EnsemblPlants/Gramene starch synthase activity Inferred from electronic annotation. Source: InterPro
Complete GO annotation...

Sequence annotation (Features)

	Feature key	Position(s)	Length	Description	Graphical view	Feature identifier
Molecule processing
	Transit peptide	1 – 72	72	Chloroplast
	Chain	73 – 605	533	Granule-bound starch synthase 1, chloroplastic/amyloplastic		PRO_0000011129
Sites
	Binding site	91	1	ADP-glucose By similarity

Sequences

	Sequence		Length	Mass (Da)
	P04713 [UniParc]. Last modified August 13, 1987. Version 1. Checksum: 137F15207DBFC189	FASTA	605	65,967
	10 20 30 40 50 60 MAALATSQLV ATRAGLGVPD ASTFRRGAAQ GLRGARASAA ADTLSMRTSA RAAPRHQQQA 70 80 90 100 110 120 RRGGRFPSLV VCASAGMNVV FVGAEMAPWS KTGGLGDVLG GLPPAMAANG HRVMVVSPRY 130 140 150 160 170 180 DQYKDAWDTS VVSEIKMGDG YETVRFFHCY KRGVDRVFVD HPLFLERVWG KTEEKIYGPV 190 200 210 220 230 240 AGTDYRDNQL RFSLLCQAAL EAPRILSLNN NPYFSGPYGE DVVFVCNDWH TGPLSCYLKS 250 260 270 280 290 300 NYQSHGIYRD AKTAFCIHNI SYQGRFAFSD YPELNLPERF KSSFDFIDGY EKPVEGRKIN 310 320 330 340 350 360 WMKAGILEAD RVLTVSPYYA EELISGIARG CELDNIMRLT GITGIVNGMD VSEWDPSRDK 370 380 390 400 410 420 YIAVKYDVST AVEAKALNKE ALQAEVGLPV DRNIPLVAFI GRLEEQKGPD VMAAAIPQLM 430 440 450 460 470 480 EMVEDVQIVL LGTGKKKFER MLMSAEEKFP GKVRAVVKFN AALAHHIMAG ADVLAVTSRF 490 500 510 520 530 540 EPCGLIQLQG MRYGTPCACA STGGLVDTII EGKTGFHMGR LSVDCNVVEP ADVKKVATTL 550 560 570 580 590 600 QRAIKVVGTP AYEEMVRNCM IQDLSWKGPA KNWENVLLSL GVAGGEPGVE GEEIAPLAKE NVAAP

References

[1]	"Molecular analysis of the waxy locus of Zea mays." Kloesgen R.B., Gierl A., Schwarz-Sommer Z., Saedler H. Mol. Gen. Genet. 203:237-244(1986) Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA].

Cross-references

Sequence databases
EMBL GenBank DDBJ	X03935 Genomic DNA. Translation: CAA27574.1.
PIR	S07314.
RefSeq	NP_001105001.2. NM_001111531.2.
UniGene	Zm.78797.
3D structure databases
ProteinModelPortal	P04713.
ModBase	Search...
Protein family/group databases
CAZy	GT5. Glycosyltransferase Family 5.
Protocols and materials databases
StructuralBiologyKnowledgebase	Search...
Genome annotation databases
GeneID	541854.
KEGG	zma:541854.
Organism-specific databases
Gramene	P04713.
MaizeGDB	15806.
Phylogenomic databases
KO	K13679.
Enzyme and pathway databases
UniPathway	UPA00152.
Family and domain databases
InterPro	IPR001296. Glyco_trans_1. IPR011835. Glycogen/starch_synth. IPR013534. Starch_synth_cat_dom. [Graphical view]
Pfam	PF08323. Glyco_transf_5. 1 hit. PF00534. Glycos_transf_1. 1 hit. [Graphical view]
TIGRFAMs	TIGR02095. glgA. 1 hit.
ProtoNet	Search...

Entry information

Entry name

SSG1_MAIZE

Accession

Primary (citable) accession number: P04713

Entry history

Integrated into UniProtKB/Swiss-Prot:	August 13, 1987
Last sequence update:	August 13, 1987
Last modified:	January 9, 2013
This is version 84 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation program

Plant Protein Annotation Program