ID   OPP28_HAEIF             Reviewed;         353 AA.
AC   Q48221;
DT   15-DEC-1998, integrated into UniProtKB/Swiss-Prot.
DT   01-NOV-1996, sequence version 1.
DT   25-MAY-2022, entry version 79.
DE   RecName: Full=Outer membrane protein P2;
DE            Short=OMP P2;
DE   Flags: Precursor;
GN   Name=ompP2;
OS   Haemophilus influenzae.
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Pasteurellales;
OC   Pasteurellaceae; Haemophilus.
OX   NCBI_TaxID=727;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC   STRAIN=321GC;
RX   PubMed=8412618; DOI=10.1006/mpat.1993.1044;
RA   Duim B., Dankert J., Jansen H.M., van Alphen L.;
RT   "Genetic analysis of the diversity in outer membrane protein P2 of non-
RT   encapsulated Haemophilus influenzae.";
RL   Microb. Pathog. 14:451-462(1993).
CC   -!- FUNCTION: Forms pores that allow passive diffusion of small molecules
CC       across the outer membrane. {ECO:0000250}.
CC   -!- SUBUNIT: Homotrimer. {ECO:0000250}.
CC   -!- SUBCELLULAR LOCATION: Cell outer membrane; Multi-pass membrane protein.
CC   -!- SIMILARITY: Belongs to the Gram-negative porin family. {ECO:0000305}.
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DR   EMBL; X73393; CAA51810.1; -; Genomic_DNA.
DR   AlphaFoldDB; Q48221; -.
DR   SMR; Q48221; -.
DR   GO; GO:0009279; C:cell outer membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0046930; C:pore complex; IEA:UniProtKB-KW.
DR   GO; GO:0015288; F:porin activity; IEA:UniProtKB-KW.
DR   GO; GO:0006811; P:ion transport; IEA:UniProtKB-KW.
DR   CDD; cd00342; gram_neg_porins; 1.
DR   Gene3D; 2.40.160.10; -; 1.
DR   InterPro; IPR033900; Gram_neg_porin_domain.
DR   InterPro; IPR023614; Porin_dom_sf.
DR   Pfam; PF13609; Porin_4; 1.
PE   3: Inferred from homology;
KW   Cell outer membrane; Ion transport; Membrane; Porin; Signal; Transmembrane;
KW   Transmembrane beta strand; Transport.
FT   SIGNAL          1..20
FT   CHAIN           21..353
FT                   /note="Outer membrane protein P2"
FT                   /id="PRO_0000025265"
SQ   SEQUENCE   353 AA;  38787 MW;  6E2A6AB3B682A123 CRC64;
     MKKTLAALIV GAFAASAANA AVVYNNEGTK VELGGRVSII AEQSTSNRKD QKHQHGSLRN
     QGSRFNIKVT HNLGDGYYAL GYYETRFINK DIDGNEKNIG SGFGSITTKL AYAGLGNKEL
     GEATFGLQKT IADKISTAED KEYGVIEKNS YIPTEGNAIA YTYKGIEGLT LGASYVFGGR
     NFSDYEITDG KVSNAVQVGA KYDANNIVAG FAYGRTNYKA QQAKTQQVNG ALATLGYHFD
     DLGLLISLDS GYAKTKNKAD KHEKRYFVSP GFQYELMEDT NLYGNLKYER INSVDQGEKV
     REHAVLFGID HKLHKQVLTY IEGAYARTRT NDKGKTEKTE KEKSVGVGLR VYF