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DGAL_SHIFL
ID   DGAL_SHIFL              Reviewed;         332 AA.
AC   P0AEE7; P02927; P17775;
DT   21-JUL-1986, integrated into UniProtKB/Swiss-Prot.
DT   13-AUG-1987, sequence version 1.
DT   03-AUG-2022, entry version 96.
DE   RecName: Full=D-galactose-binding periplasmic protein;
DE            Short=GBP;
DE   AltName: Full=D-galactose/ D-glucose-binding protein;
DE            Short=GGBP;
DE   Flags: Precursor;
GN   Name=mglB; OrderedLocusNames=SF2235, S2364;
OS   Shigella flexneri.
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Shigella.
OX   NCBI_TaxID=623;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=301 / Serotype 2a;
RX   PubMed=12384590; DOI=10.1093/nar/gkf566;
RA   Jin Q., Yuan Z., Xu J., Wang Y., Shen Y., Lu W., Wang J., Liu H., Yang J.,
RA   Yang F., Zhang X., Zhang J., Yang G., Wu H., Qu D., Dong J., Sun L.,
RA   Xue Y., Zhao A., Gao Y., Zhu J., Kan B., Ding K., Chen S., Cheng H.,
RA   Yao Z., He B., Chen R., Ma D., Qiang B., Wen Y., Hou Y., Yu J.;
RT   "Genome sequence of Shigella flexneri 2a: insights into pathogenicity
RT   through comparison with genomes of Escherichia coli K12 and O157.";
RL   Nucleic Acids Res. 30:4432-4441(2002).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 700930 / 2457T / Serotype 2a;
RX   PubMed=12704152; DOI=10.1128/iai.71.5.2775-2786.2003;
RA   Wei J., Goldberg M.B., Burland V., Venkatesan M.M., Deng W., Fournier G.,
RA   Mayhew G.F., Plunkett G. III, Rose D.J., Darling A., Mau B., Perna N.T.,
RA   Payne S.M., Runyen-Janecky L.J., Zhou S., Schwartz D.C., Blattner F.R.;
RT   "Complete genome sequence and comparative genomics of Shigella flexneri
RT   serotype 2a strain 2457T.";
RL   Infect. Immun. 71:2775-2786(2003).
CC   -!- FUNCTION: This protein is involved in the active transport of galactose
CC       and glucose. It plays a role in the chemotaxis towards the two sugars
CC       by interacting with the trg chemoreceptor (By similarity).
CC       {ECO:0000250}.
CC   -!- SUBCELLULAR LOCATION: Periplasm {ECO:0000250}.
CC   -!- DOMAIN: The calcium-binding site is structurally similar to that of EF-
CC       hand proteins, but is in two parts, with the last calcium ligand
CC       provided by Glu-228. {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the bacterial solute-binding protein 2 family.
CC       {ECO:0000305}.
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DR   EMBL; AE005674; AAN43756.1; -; Genomic_DNA.
DR   EMBL; AE014073; AAP17573.1; -; Genomic_DNA.
DR   RefSeq; NP_708049.1; NC_004337.2.
DR   RefSeq; WP_001036964.1; NZ_WPGW01000017.1.
DR   AlphaFoldDB; P0AEE7; -.
DR   BMRB; P0AEE7; -.
DR   SMR; P0AEE7; -.
DR   STRING; 198214.SF2235; -.
DR   PRIDE; P0AEE7; -.
DR   EnsemblBacteria; AAN43756; AAN43756; SF2235.
DR   EnsemblBacteria; AAP17573; AAP17573; S2364.
DR   GeneID; 1027319; -.
DR   GeneID; 66673954; -.
DR   KEGG; sfl:SF2235; -.
DR   KEGG; sfx:S2364; -.
DR   PATRIC; fig|198214.7.peg.2677; -.
DR   HOGENOM; CLU_037628_3_1_6; -.
DR   OMA; MWDAAMA; -.
DR   OrthoDB; 1378040at2; -.
DR   Proteomes; UP000001006; Chromosome.
DR   Proteomes; UP000002673; Chromosome.
DR   GO; GO:0030288; C:outer membrane-bounded periplasmic space; IEA:UniProt.
DR   GO; GO:0030246; F:carbohydrate binding; IEA:InterPro.
DR   GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR   GO; GO:0008643; P:carbohydrate transport; IEA:UniProtKB-KW.
DR   GO; GO:0006935; P:chemotaxis; IEA:UniProtKB-KW.
DR   CDD; cd01539; PBP1_GGBP; 1.
DR   InterPro; IPR044085; MglB-like_PBP1.
DR   InterPro; IPR028082; Peripla_BP_I.
DR   InterPro; IPR025997; SBP_2_dom.
DR   Pfam; PF13407; Peripla_BP_4; 1.
DR   SUPFAM; SSF53822; SSF53822; 1.
PE   3: Inferred from homology;
KW   Calcium; Chemotaxis; Metal-binding; Periplasm; Reference proteome; Signal;
KW   Sugar transport; Transport.
FT   SIGNAL          1..23
FT                   /evidence="ECO:0000250"
FT   CHAIN           24..332
FT                   /note="D-galactose-binding periplasmic protein"
FT                   /id="PRO_0000043345"
FT   BINDING         37
FT                   /ligand="beta-D-galactose"
FT                   /ligand_id="ChEBI:CHEBI:27667"
FT                   /evidence="ECO:0000250|UniProtKB:P23905"
FT   BINDING         37
FT                   /ligand="beta-D-glucose"
FT                   /ligand_id="ChEBI:CHEBI:15903"
FT                   /evidence="ECO:0000250|UniProtKB:P0AEE5"
FT   BINDING         114
FT                   /ligand="beta-D-galactose"
FT                   /ligand_id="ChEBI:CHEBI:27667"
FT                   /evidence="ECO:0000250|UniProtKB:P23905"
FT   BINDING         114
FT                   /ligand="beta-D-glucose"
FT                   /ligand_id="ChEBI:CHEBI:15903"
FT                   /evidence="ECO:0000250|UniProtKB:P0AEE5"
FT   BINDING         157
FT                   /ligand="Ca(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29108"
FT                   /evidence="ECO:0000250|UniProtKB:P0AEE5"
FT   BINDING         159
FT                   /ligand="Ca(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29108"
FT                   /evidence="ECO:0000250|UniProtKB:P0AEE5"
FT   BINDING         161
FT                   /ligand="Ca(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29108"
FT                   /evidence="ECO:0000250|UniProtKB:P0AEE5"
FT   BINDING         163
FT                   /ligand="Ca(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29108"
FT                   /evidence="ECO:0000250|UniProtKB:P0AEE5"
FT   BINDING         165
FT                   /ligand="Ca(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29108"
FT                   /evidence="ECO:0000250|UniProtKB:P0AEE5"
FT   BINDING         175
FT                   /ligand="beta-D-galactose"
FT                   /ligand_id="ChEBI:CHEBI:27667"
FT                   /evidence="ECO:0000250|UniProtKB:P23905"
FT   BINDING         175
FT                   /ligand="beta-D-glucose"
FT                   /ligand_id="ChEBI:CHEBI:15903"
FT                   /evidence="ECO:0000250|UniProtKB:P0AEE5"
FT   BINDING         177
FT                   /ligand="beta-D-galactose"
FT                   /ligand_id="ChEBI:CHEBI:27667"
FT                   /evidence="ECO:0000250|UniProtKB:P23905"
FT   BINDING         177
FT                   /ligand="beta-D-glucose"
FT                   /ligand_id="ChEBI:CHEBI:15903"
FT                   /evidence="ECO:0000250|UniProtKB:P0AEE5"
FT   BINDING         181
FT                   /ligand="beta-D-galactose"
FT                   /ligand_id="ChEBI:CHEBI:27667"
FT                   /evidence="ECO:0000250|UniProtKB:P23905"
FT   BINDING         181
FT                   /ligand="beta-D-glucose"
FT                   /ligand_id="ChEBI:CHEBI:15903"
FT                   /evidence="ECO:0000250|UniProtKB:P0AEE5"
FT   BINDING         228
FT                   /ligand="Ca(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29108"
FT                   /evidence="ECO:0000250|UniProtKB:P0AEE5"
FT   BINDING         234
FT                   /ligand="beta-D-galactose"
FT                   /ligand_id="ChEBI:CHEBI:27667"
FT                   /evidence="ECO:0000250|UniProtKB:P23905"
FT   BINDING         234
FT                   /ligand="beta-D-glucose"
FT                   /ligand_id="ChEBI:CHEBI:15903"
FT                   /evidence="ECO:0000250|UniProtKB:P0AEE5"
FT   BINDING         259
FT                   /ligand="beta-D-galactose"
FT                   /ligand_id="ChEBI:CHEBI:27667"
FT                   /evidence="ECO:0000250|UniProtKB:P23905"
FT   BINDING         259
FT                   /ligand="beta-D-glucose"
FT                   /ligand_id="ChEBI:CHEBI:15903"
FT                   /evidence="ECO:0000250|UniProtKB:P0AEE5"
FT   BINDING         279
FT                   /ligand="beta-D-galactose"
FT                   /ligand_id="ChEBI:CHEBI:27667"
FT                   /evidence="ECO:0000250|UniProtKB:P23905"
FT   BINDING         279
FT                   /ligand="beta-D-glucose"
FT                   /ligand_id="ChEBI:CHEBI:15903"
FT                   /evidence="ECO:0000250|UniProtKB:P0AEE5"
FT   SITE            97
FT                   /note="Interacts with membrane-bound trg signal transducer"
FT                   /evidence="ECO:0000250"
SQ   SEQUENCE   332 AA;  35713 MW;  9A57E86C423AA6D3 CRC64;
     MNKKVLTLSA VMASMLFGAA AHAADTRIGV TIYKYDDNFM SVVRKAIEQD AKAAPDVQLL
     MNDSQNDQSK QNDQIDVLLA KGVKALAINL VDPAAAGTVI EKARGQNVPV VFFNKEPSRK
     ALDSYDKAYY VGTDSKESGI IQGDLIAKHW AANQGWDLNK DGQIQFVLLK GEPGHPDAEA
     RTTYVIKELN DKGIKTEQLQ LDTAMWDTAQ AKDKMDAWLS GPNANKIEVV IANNDAMAMG
     AVEALKAHNK SSIPVFGVDA LPEALALVKS GALAGTVLND ANNQAKATFD LAKNLADGKG
     AADGTNWKID NKVVRVPYVG VDKDNLAEFS KK
 
 
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