ID   POTD1_HAEIN             Reviewed;         360 AA.
AC   P45168;
DT   01-NOV-1995, integrated into UniProtKB/Swiss-Prot.
DT   01-NOV-1995, sequence version 1.
DT   25-MAY-2022, entry version 116.
DE   RecName: Full=Spermidine/putrescine-binding periplasmic protein 1;
DE            Short=SPBP;
DE   Flags: Precursor;
GN   Name=potD-B; OrderedLocusNames=HI_1344;
OS   Haemophilus influenzae (strain ATCC 51907 / DSM 11121 / KW20 / Rd).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Pasteurellales;
OC   Pasteurellaceae; Haemophilus.
OX   NCBI_TaxID=71421;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 51907 / DSM 11121 / KW20 / Rd;
RX   PubMed=7542800; DOI=10.1126/science.7542800;
RA   Fleischmann R.D., Adams M.D., White O., Clayton R.A., Kirkness E.F.,
RA   Kerlavage A.R., Bult C.J., Tomb J.-F., Dougherty B.A., Merrick J.M.,
RA   McKenney K., Sutton G.G., FitzHugh W., Fields C.A., Gocayne J.D.,
RA   Scott J.D., Shirley R., Liu L.-I., Glodek A., Kelley J.M., Weidman J.F.,
RA   Phillips C.A., Spriggs T., Hedblom E., Cotton M.D., Utterback T.R.,
RA   Hanna M.C., Nguyen D.T., Saudek D.M., Brandon R.C., Fine L.D.,
RA   Fritchman J.L., Fuhrmann J.L., Geoghagen N.S.M., Gnehm C.L., McDonald L.A.,
RA   Small K.V., Fraser C.M., Smith H.O., Venter J.C.;
RT   "Whole-genome random sequencing and assembly of Haemophilus influenzae
RT   Rd.";
RL   Science 269:496-512(1995).
CC   -!- FUNCTION: Required for the activity of the bacterial periplasmic
CC       transport system of putrescine and spermidine. Polyamine binding
CC       protein (By similarity). {ECO:0000250}.
CC   -!- SUBCELLULAR LOCATION: Periplasm {ECO:0000305}.
CC   -!- SIMILARITY: Belongs to the bacterial solute-binding protein PotD/PotF
CC       family. {ECO:0000305}.
CC   -!- SEQUENCE CAUTION:
CC       Sequence=AAC22988.1; Type=Erroneous initiation; Evidence={ECO:0000305};
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DR   EMBL; L42023; AAC22988.1; ALT_INIT; Genomic_DNA.
DR   PIR; H64117; H64117.
DR   RefSeq; NP_439495.1; NC_000907.1.
DR   RefSeq; WP_005650701.1; NC_000907.1.
DR   AlphaFoldDB; P45168; -.
DR   SMR; P45168; -.
DR   STRING; 71421.HI_1344; -.
DR   EnsemblBacteria; AAC22988; AAC22988; HI_1344.
DR   KEGG; hin:HI_1344; -.
DR   PATRIC; fig|71421.8.peg.1396; -.
DR   eggNOG; COG0687; Bacteria.
DR   HOGENOM; CLU_026974_1_3_6; -.
DR   PhylomeDB; P45168; -.
DR   Proteomes; UP000000579; Chromosome.
DR   GO; GO:0042597; C:periplasmic space; IEA:UniProtKB-SubCell.
DR   GO; GO:0019808; F:polyamine binding; IEA:InterPro.
DR   GO; GO:0015846; P:polyamine transport; IEA:InterPro.
DR   InterPro; IPR006059; SBP.
DR   InterPro; IPR001188; Sperm_putr-bd.
DR   Pfam; PF13416; SBP_bac_8; 1.
DR   PIRSF; PIRSF019574; Periplasmic_polyamine_BP; 1.
DR   PRINTS; PR00909; SPERMDNBNDNG.
PE   3: Inferred from homology;
KW   Periplasm; Reference proteome; Signal; Transport.
FT   SIGNAL          1..16
FT                   /evidence="ECO:0000255"
FT   CHAIN           17..360
FT                   /note="Spermidine/putrescine-binding periplasmic protein 1"
FT                   /id="PRO_0000031840"
SQ   SEQUENCE   360 AA;  39990 MW;  166CCC976D0579C0 CRC64;
     MKKFAGLITA SFVAATLTAC NDKDAKQETA KATAAANDTV YLYTWTEYVP DGLLDEFTKE
     TGIKVIVSSL ESNETMYAKL KTQGESGGYD VIAPSNYFVS KMAREGMLKE LDHSKLPVLK
     ELDPDWLNKP YDKGNKYSLP QLLGAPGIAF NTNTYKGEQF TSWADLWKPE FANKVQLLDD
     AREVFNIALL KIGQDPNTQD PAIIKQAYEE LLKLRPNVLS FNSDNPANSF ISGEVEVGQL
     WNGSVRIAKK EKAPLNMVFP KEGPVLWVDT LAIPATAKNS EGAHKLINYM LGKKTAEKLT
     LAIGYPTSNI EAKKALPKEI TEDPAIYPSA DILKNSHWQD DVGDAIQFYE QYYQELKAAK