ID   OMPN_ECOLI              Reviewed;         377 AA.
AC   P77747; P76854;
DT   15-DEC-1998, integrated into UniProtKB/Swiss-Prot.
DT   01-FEB-1997, sequence version 1.
DT   03-AUG-2022, entry version 151.
DE   RecName: Full=Outer membrane porin N;
DE   AltName: Full=Outer membrane protein N;
DE   AltName: Full=Porin OmpN;
DE   Flags: Precursor;
GN   Name=ompN; Synonyms=ynaG; OrderedLocusNames=b1377, JW1371;
OS   Escherichia coli (strain K12).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Escherichia.
OX   NCBI_TaxID=83333;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=K12 / W3110 / ATCC 27325 / DSM 5911;
RX   PubMed=9097039; DOI=10.1093/dnares/3.6.363;
RA   Aiba H., Baba T., Fujita K., Hayashi K., Inada T., Isono K., Itoh T.,
RA   Kasai H., Kashimoto K., Kimura S., Kitakawa M., Kitagawa M., Makino K.,
RA   Miki T., Mizobuchi K., Mori H., Mori T., Motomura K., Nakade S.,
RA   Nakamura Y., Nashimoto H., Nishio Y., Oshima T., Saito N., Sampei G.,
RA   Seki Y., Sivasundaram S., Tagami H., Takeda J., Takemoto K., Takeuchi Y.,
RA   Wada C., Yamamoto Y., Horiuchi T.;
RT   "A 570-kb DNA sequence of the Escherichia coli K-12 genome corresponding to
RT   the 28.0-40.1 min region on the linkage map.";
RL   DNA Res. 3:363-377(1996).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=K12 / MG1655 / ATCC 47076;
RX   PubMed=9278503; DOI=10.1126/science.277.5331.1453;
RA   Blattner F.R., Plunkett G. III, Bloch C.A., Perna N.T., Burland V.,
RA   Riley M., Collado-Vides J., Glasner J.D., Rode C.K., Mayhew G.F.,
RA   Gregor J., Davis N.W., Kirkpatrick H.A., Goeden M.A., Rose D.J., Mau B.,
RA   Shao Y.;
RT   "The complete genome sequence of Escherichia coli K-12.";
RL   Science 277:1453-1462(1997).
RN   [3]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=K12 / W3110 / ATCC 27325 / DSM 5911;
RX   PubMed=16738553; DOI=10.1038/msb4100049;
RA   Hayashi K., Morooka N., Yamamoto Y., Fujita K., Isono K., Choi S.,
RA   Ohtsubo E., Baba T., Wanner B.L., Mori H., Horiuchi T.;
RT   "Highly accurate genome sequences of Escherichia coli K-12 strains MG1655
RT   and W3110.";
RL   Mol. Syst. Biol. 2:E1-E5(2006).
RN   [4]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA], PROTEIN SEQUENCE OF 22-33, AND
RP   CHARACTERIZATION.
RX   PubMed=9642192; DOI=10.1128/jb.180.13.3388-3392.1998;
RA   Prilipov A., Phale P.S., Koebnik R., Widmer C., Rosenbusch J.P.;
RT   "Identification and characterization of two quiescent porin genes, nmpC and
RT   ompN, in Escherichia coli BE.";
RL   J. Bacteriol. 180:3388-3392(1998).
CC   -!- FUNCTION: Forms pores that allow passive diffusion of small molecules
CC       across the outer membrane (By similarity). Non-specific porin.
CC       {ECO:0000250}.
CC   -!- SUBUNIT: Homotrimer.
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; U00096; AAC74459.1; -; Genomic_DNA.
DR   EMBL; AP009048; BAA14981.1; -; Genomic_DNA.
DR   PIR; D64888; D64888.
DR   RefSeq; NP_415895.1; NC_000913.3.
DR   RefSeq; WP_000837921.1; NZ_SSZK01000012.1.
DR   AlphaFoldDB; P77747; -.
DR   SMR; P77747; -.
DR   BioGRID; 4260172; 287.
DR   DIP; DIP-10400N; -.
DR   IntAct; P77747; 2.
DR   STRING; 511145.b1377; -.
DR   TCDB; 1.B.1.1.21; the general bacterial porin (gbp) family.
DR   PaxDb; P77747; -.
DR   PRIDE; P77747; -.
DR   EnsemblBacteria; AAC74459; AAC74459; b1377.
DR   EnsemblBacteria; BAA14981; BAA14981; BAA14981.
DR   GeneID; 946313; -.
DR   KEGG; ecj:JW1371; -.
DR   KEGG; eco:b1377; -.
DR   PATRIC; fig|1411691.4.peg.896; -.
DR   EchoBASE; EB3157; -.
DR   eggNOG; COG3203; Bacteria.
DR   HOGENOM; CLU_058202_0_0_6; -.
DR   InParanoid; P77747; -.
DR   OMA; TIANKTQ; -.
DR   PhylomeDB; P77747; -.
DR   BioCyc; EcoCyc:G6700-MON; -.
DR   PRO; PR:P77747; -.
DR   Proteomes; UP000000318; Chromosome.
DR   Proteomes; UP000000625; Chromosome.
DR   GO; GO:0009279; C:cell outer membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0016020; C:membrane; IDA:EcoCyc.
DR   GO; GO:0046930; C:pore complex; IEA:UniProtKB-KW.
DR   GO; GO:0015288; F:porin activity; IDA:EcoCyc.
DR   GO; GO:0034219; P:carbohydrate transmembrane transport; IDA:EcoCyc.
DR   GO; GO:0034220; P:ion transmembrane transport; IEA:InterPro.
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   InterPro; IPR001897; Porin_gammaproteobac.
DR   InterPro; IPR001702; Porin_Gram-ve.
DR   Pfam; PF00267; Porin_1; 1.
DR   PRINTS; PR00183; ECOLIPORIN.
DR   PRINTS; PR00182; ECOLNEIPORIN.
PE   1: Evidence at protein level;
KW   Cell outer membrane; Direct protein sequencing; Ion transport; Membrane;
KW   Porin; Reference proteome; Signal; Transmembrane;
KW   Transmembrane beta strand; Transport.
FT   SIGNAL          1..21
FT                   /evidence="ECO:0000269|PubMed:9642192"
FT   CHAIN           22..377
FT                   /note="Outer membrane porin N"
FT                   /id="PRO_0000025250"
FT   REGION          175..196
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ   SEQUENCE   377 AA;  41220 MW;  4420D2CB9BC10F95 CRC64;
     MKSKVLALLI PALLAAGAAH AAEVYNKDGN KLDLYGKVDG LHYFSDNSAK DGDQSYARLG
     FKGETQINDQ LTGYGQWEYN IQANNTESSK NQSWTRLAFA GLKFADYGSF DYGRNYGVMY
     DIEGWTDMLP EFGGDSYTNA DNFMTGRANG VATYRNTDFF GLVNGLNFAV QYQGNNEGAS
     NGQEGTNNGR DVRHENGDGW GLSTTYDLGM GFSAGAAYTS SDRTNDQVNH TAAGGDKADA
     WTAGLKYDAN NIYLATMYSE TRNMTPFGDS DYAVANKTQN FEVTAQYQFD FGLRPAVSFL
     MSKGRDLHAA GGADNPAGVD DKDLVKYADI GATYYFNKNM STYVDYKINL LDEDDSFYAA
     NGISTDDIVA LGLVYQF