Reviewed, UniProtKB/Swiss-Prot Q2YYJ9 (LACG_STAAB)

Names and origin

Protein names

Recommended name:
    6-phospho-beta-galactosidase
    EC=3.2.1.85
Alternative name(s):
    Beta-D-phosphogalactoside galactohydrolase
      Short name=PGALase
    P-beta-Gal
      Short name=PBG

Gene names

Name:	lacG
Ordered Locus Names:	SAB2070c

Organism

Staphylococcus aureus (strain bovine RF122 / ET3-1) [Complete proteome] [HAMAP]

Taxonomic identifier

273036 [NCBI]

Taxonomic lineage

Bacteria › Firmicutes › Bacillales › Staphylococcus

Protein attributes

Sequence length	470 AA.
Sequence status	Complete.
Protein existence	Inferred from homology.

General annotation (Comments)

Catalytic activity	A 6-phospho-beta-D-galactoside + H2O = 6-phospho-D-galactose + an alcohol. HAMAP MF_01574
Pathway	Carbohydrate metabolism; lactose degradation; D-galactose 6-phosphate and beta-D-glucose from lactose 6-phosphate: step 1/1. HAMAP MF_01574
Sequence similarities	Belongs to the glycosyl hydrolase 1 family.

Ontologies

Keywords
Molecular function	Glycosidase Hydrolase
Technical term	Complete proteome
Gene Ontology (GO)
Biological process	lactose catabolic process via tagatose-6-phosphate Inferred from electronic annotation. Source: InterPro
Molecular function	6-phospho-beta-galactosidase activity Inferred from electronic annotation. Source: EC cation binding Inferred from electronic annotation. Source: InterPro galactosidase activity Inferred from electronic annotation. Source: HAMAP
Complete GO annotation...

Sequence annotation (Features)

	Feature key	Position(s)	Length	Description	Graphical view	Feature identifier
Molecule processing
	Chain	1 – 470	470	6-phospho-beta-galactosidase HAMAP MF_01574		PRO_0000260724
Sites
	Active site	160	1	Proton donor By similarity
	Active site	375	1	Nucleophile By similarity

Sequences

	Sequence		Length	Mass (Da)
	Q2YYJ9-1 [UniParc]. Last modified December 20, 2005. Version 1. Checksum: 9A5C8E295AB8DF2F	FASTA	470	54,565
	10 20 30 40 50 60 MTKTLPEDFI FGGATAAYQA EGATNTDGKG RVAWDTYLEE NYWYTAEPAS DFYNRYPVDL 70 80 90 100 110 120 ELSEKFGVNG IRISIAWSRI FPNGYGEVNP KGVEYYHKLF AECHKRHVEP FVTLHHFDTP 130 140 150 160 170 180 EVLHKDGDFL NRKTIDYFVD YAEYCFKEFP EVKYWTTFNE IGPIGDGQYL VGKFPPGIKY 190 200 210 220 230 240 DFEKVFQSHH NMMVAHARAV KLFKDGGYQG EIGVVHALPT KYPFDPSNPE DVRAAELEDI 250 260 270 280 290 300 IHNKFILDAT YLGKYSRETM EGVQHILSVN GGKLNITDED YAILDAAKDL NDFLGINYYM 310 320 330 340 350 360 SDWMRGYDGE SEITHNATGD KGGSKYQLKG VGQREFDVDV PRTDWDWMIY PQGLYDQIMR 370 380 390 400 410 420 VVKDYPNYHK IYITENGLGY KDEFIESEKT VHDDARIDYV RQHLNVIADA IKDGANVKGY 430 440 450 460 470 FIWSLMDVFS WSNGYEKRYG LFYVDFETQE RYPKKSAYWY KELAETKEIK

References

[1]	"Molecular correlates of host specialization in Staphylococcus aureus." Herron-Olson L., Fitzgerald J.R., Musser J.M., Kapur V. PLoS ONE 2:E1120-E1120(2007) [PubMed: 17971880] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].

Cross-references

Sequence databases
EMBL GenBank DDBJ	AJ938182 Genomic DNA. Translation: CAI81759.1.
RefSeq	YP_417528.1.
3D structure databases
HSSP	HSSP built from PDB template 1PBG based on UniProtKB P11546.
SMR	Q2YYJ9. Positions 1-470.
ModBase	Search...
Protein-protein interaction databases
STRING	Q2YYJ9.
Protein family/group databases
CAZy	GH1. Glycoside Hydrolase Family 1.
Genome annotation databases
GeneID	3794800.
GenomeReviews	Gene locus SAB2070c in contig AJ938182_GR.
KEGG	sab:SAB2070c.
Organism-specific databases
CMR	Search...
Phylogenomic databases
eggNOG	COG2723.
HOGENOM	HBG316462.
OMA	FCFKEFS.
PhylomeDB	Q2YYJ9.
Enzyme and pathway databases
BioCyc	SAUR273036:SAB2070C-MONOMER.
Family and domain databases
HAMAP	MF_01574. LacG. [Tree]
InterPro	IPR001360. Glyco_hydro_1. IPR018120. Glyco_hydro_1_AS. IPR017853. Glyco_hydro_catalytic_core. IPR013781. Glyco_hydro_sg_catalytic. IPR005928. LacG. [Graphical view]
Gene3D	G3DSA:3.20.20.80. Glyco_hydro_cat. 1 hit.
PANTHER	PTHR10353. Glyco_hydro_1. 1 hit.
Pfam	PF00232. Glyco_hydro_1. 1 hit. [Graphical view]
PRINTS	PR00131. GLHYDRLASE1.
TIGRFAMs	TIGR01233. lacG. 1 hit.
PROSITE	PS00572. GLYCOSYL_HYDROL_F1_1. 1 hit. PS00653. GLYCOSYL_HYDROL_F1_2. 1 hit. [Graphical view]
ProtoNet	Search...

Entry information

Entry name

LACG_STAAB

Accession

Primary (citable) accession number: Q2YYJ9

Entry history

Integrated into UniProtKB/Swiss-Prot:	November 28, 2006
Last sequence update:	December 20, 2005
Last modified:	February 9, 2010
This is version 37 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)