Reviewed, UniProtKB/Swiss-Prot Q46654 (SACB_ERWAM)

Names and origin

Protein names

Recommended name:
    Levansucrase
    EC=2.4.1.10
Alternative name(s):
    Beta-D-fructofuranosyl transferase
    Sucrose 6-fructosyl transferase

Gene names

Name:

lsc

Organism

Erwinia amylovora (Fire blight bacteria)

Taxonomic identifier

552 [NCBI]

Taxonomic lineage

Bacteria › Proteobacteria › Gammaproteobacteria › Enterobacteriales › Enterobacteriaceae › Erwinia

Protein attributes

Sequence length	415 AA.
Sequence status	Complete.
Protein existence	Inferred from homology.

General annotation (Comments)

Catalytic activity	Sucrose + (6)-beta-D-fructofuranosyl-(2->)(n) alpha-D-glucopyranoside = glucose + (6)-beta-D-fructofuranosyl-(2->)(n+1) alpha-D-glucopyranoside.
Subcellular location	Secreted.
Sequence similarities	Belongs to the glycosyl hydrolase 68 family.

Ontologies

Keywords
Cellular component	Secreted
Molecular function	Glycosyltransferase Transferase
Gene Ontology (GO)
Biological process	sugar utilization Inferred from electronic annotation. Source: InterPro
Cellular component	extracellular region Inferred from electronic annotation. Source: UniProtKB-SubCell
Molecular function	levansucrase activity Inferred from electronic annotation. Source: EC
Complete GO annotation...

Sequence annotation (Features)

	Feature key	Position(s)	Length	Description	Graphical view	Feature identifier
Molecule processing
	Chain	1 – 415	415	Levansucrase		PRO_0000057717

Sequences

	Sequence		Length	Mass (Da)
	Q46654-1 [UniParc]. Last modified November 1, 1996. Version 1. Checksum: 4FF564F6E0607FEB	FASTA	415	46,408
	10 20 30 40 50 60 MSDYNYKPTL WTRADALKVH EDDPTTTQPV IDIAFPVMSE EVFIWDTMPL RDFDGEIISV 70 80 90 100 110 120 NGWCIIFTLT ADRNTDNPQF QDENGNYDIT RDWEDRHGRA RICYWYSRTG KDWIFGGRVM 130 140 150 160 170 180 AEGVAPTTRE WAGTPILLND RGDIDLYYTC VTPGATIAKV RGKIVTSDQS VSLEGFQQVT 190 200 210 220 230 240 SLFSADGTIY QTEEQNAFWN FRDPSPFIDR NDGKLYMLFE GNVAGPRGSH EITQAEMGNV 250 260 270 280 290 300 PPGYEDVGGA KYQAGCVGLA VAKDLSGSEW QILPPLITAV GVNDQTERPH FVFQDGKYYL 310 320 330 340 350 360 FTISHKYTFA DNLTGPDGVY GFVSDKLTGP YTPMNSSGLV LGNPSSQPFQ TYSHYVMPNG 370 380 390 400 410 LVTSFIDSVP WKGKDYRIGG TEAPTVKILL KGDRSFIVDS FDYGYIPAMK DITLK

References

[1]	"Characterization and infuence on virulence of the levansucrase gene from the fireblight pathogen Erwinia amylovora." Geier G., Geider K.K. Physiol. Mol. Plant Pathol. 42:387-404(1993) [Agricola: IND20389464] Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA]. Strain: EA7/74.

Cross-references

Sequence databases
EMBL GenBank DDBJ	X75079 Genomic DNA. Translation: CAA52972.1.
PIR	S39195.
3D structure databases
SMR	Q46654. Positions 8-412.
ModBase	Search...
Protein family/group databases
CAZy	GH68. Glycoside Hydrolase Family 68.
Enzyme and pathway databases
BRENDA	2.4.1.10. 81763.
Family and domain databases
InterPro	IPR003469. Glyco_hydro_68. [Graphical view]
Pfam	PF02435. Glyco_hydro_68. 1 hit. [Graphical view]
ProtoNet	Search...

Entry information

Entry name

SACB_ERWAM

Accession

Primary (citable) accession number: Q46654

Entry history

Integrated into UniProtKB/Swiss-Prot:	December 15, 1998
Last sequence update:	November 1, 1996
Last modified:	January 19, 2010
This is version 44 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation project

HAMAP (High-quality Automated and Manual Annotation of microbial Proteomes)