ID   PROB_STRAG              Reviewed;         226 AA.
AC   P09879;
DT   01-JUL-1989, integrated into UniProtKB/Swiss-Prot.
DT   01-JUL-1989, sequence version 1.
DT   25-MAY-2022, entry version 57.
DE   RecName: Full=Protein B;
DE   AltName: Full=cAMP factor;
OS   Streptococcus agalactiae.
OC   Bacteria; Firmicutes; Bacilli; Lactobacillales; Streptococcaceae;
OC   Streptococcus.
OX   NCBI_TaxID=1311;
RN   [1]
RP   PROTEIN SEQUENCE.
RX   PubMed=3042457; DOI=10.1016/0014-5793(88)81275-4;
RA   Ruhlmann J., Wittmann-Liebold B., Jurgens D., Fehrenbach F.J.;
RT   "Complete amino acid sequence of protein B.";
RL   FEBS Lett. 235:262-266(1988).
CC   -!- FUNCTION: Protein B belongs to the group of bacterial Fc-binding
CC       protein.
CC   -!- SUBCELLULAR LOCATION: Secreted.
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DR   PIR; S01115; S01115.
DR   PDB; 5H6I; X-ray; 2.45 A; A/B/C=1-226.
DR   PDB; 5Y2G; X-ray; 3.00 A; A=17-226.
DR   PDBsum; 5H6I; -.
DR   PDBsum; 5Y2G; -.
DR   AlphaFoldDB; P09879; -.
DR   SMR; P09879; -.
DR   GO; GO:0005576; C:extracellular region; IEA:UniProtKB-SubCell.
DR   GO; GO:0019864; F:IgG binding; IEA:UniProtKB-KW.
DR   InterPro; IPR010860; CAMP_factor.
DR   Pfam; PF07373; CAMP_factor; 1.
PE   1: Evidence at protein level;
KW   3D-structure; Direct protein sequencing; IgG-binding protein; Repeat;
KW   Secreted.
FT   CHAIN           1..226
FT                   /note="Protein B"
FT                   /id="PRO_0000058581"
FT   REPEAT          158..168
FT   REPEAT          169..179
FT   REPEAT          180..190
FT   REGION          37..100
FT                   /note="IgG constant region-binding"
FT   HELIX           15..38
FT                   /evidence="ECO:0007829|PDB:5H6I"
FT   TURN            39..41
FT                   /evidence="ECO:0007829|PDB:5H6I"
FT   HELIX           45..64
FT                   /evidence="ECO:0007829|PDB:5H6I"
FT   HELIX           66..68
FT                   /evidence="ECO:0007829|PDB:5H6I"
FT   HELIX           73..95
FT                   /evidence="ECO:0007829|PDB:5H6I"
FT   TURN            96..98
FT                   /evidence="ECO:0007829|PDB:5Y2G"
FT   HELIX           101..119
FT                   /evidence="ECO:0007829|PDB:5H6I"
FT   HELIX           125..143
FT                   /evidence="ECO:0007829|PDB:5H6I"
FT   TURN            156..158
FT                   /evidence="ECO:0007829|PDB:5H6I"
FT   HELIX           159..176
FT                   /evidence="ECO:0007829|PDB:5H6I"
FT   TURN            177..180
FT                   /evidence="ECO:0007829|PDB:5H6I"
FT   HELIX           183..200
FT                   /evidence="ECO:0007829|PDB:5H6I"
FT   HELIX           207..225
FT                   /evidence="ECO:0007829|PDB:5H6I"
SQ   SEQUENCE   226 AA;  25278 MW;  831D806528289554 CRC64;
     DQVTTPQVVN HVNSNNQAQQ MAQKLDQDSI QLRNIKDNVQ GTDYEKPVNE AITSVEKLKT
     SLRANSETVY DLNSIGSRVE ALTDVIEAIT FSTQHLANKV SQANIDMGFG ITKLVIRILD
     PFASVDSIKA QVNDVKALEQ KVLTYPDLKP TDRATIYTKS KLDKEIWNTR FTRDKKVLNV
     KEFKVYNTLN KAITHAVGVQ LNPNVTVQQV DQEIVTLQAA LQTALK