ID OMPA_SALTY Reviewed; 350 AA.
AC P02936;
DT 21-JUL-1986, integrated into UniProtKB/Swiss-Prot.
DT 23-JAN-2002, sequence version 2.
DT 27-MAR-2024, entry version 151.
DE RecName: Full=Outer membrane protein A {ECO:0000255|HAMAP-Rule:MF_00842};
DE AltName: Full=Outer membrane major heat-modifiable protein;
DE AltName: Full=Outer membrane porin A {ECO:0000255|HAMAP-Rule:MF_00842};
DE AltName: Full=Outer membrane protein 33K;
DE Flags: Precursor;
GN Name=ompA {ECO:0000255|HAMAP-Rule:MF_00842}; OrderedLocusNames=STM1070;
OS Salmonella typhimurium (strain LT2 / SGSC1412 / ATCC 700720).
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Enterobacterales;
OC Enterobacteriaceae; Salmonella.
OX NCBI_TaxID=99287;
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX PubMed=6349993; DOI=10.1111/j.1432-1033.1983.tb07594.x;
RA Freudl R., Cole S.T.;
RT "Cloning and molecular characterization of the ompA gene from Salmonella
RT typhimurium.";
RL Eur. J. Biochem. 134:497-502(1983).
RN [2]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=LT2 / SGSC1412 / ATCC 700720;
RX PubMed=11677609; DOI=10.1038/35101614;
RA McClelland M., Sanderson K.E., Spieth J., Clifton S.W., Latreille P.,
RA Courtney L., Porwollik S., Ali J., Dante M., Du F., Hou S., Layman D.,
RA Leonard S., Nguyen C., Scott K., Holmes A., Grewal N., Mulvaney E.,
RA Ryan E., Sun H., Florea L., Miller W., Stoneking T., Nhan M., Waterston R.,
RA Wilson R.K.;
RT "Complete genome sequence of Salmonella enterica serovar Typhimurium LT2.";
RL Nature 413:852-856(2001).
CC -!- FUNCTION: With TolR probably plays a role in maintaining the position
CC of the peptidoglycan cell wall in the periplasm. Acts as a porin with
CC low permeability that allows slow penetration of small solutes; an
CC internal gate slows down solute passage. {ECO:0000255|HAMAP-
CC Rule:MF_00842}.
CC -!- FUNCTION: Required for conjugation with F-type plasmids; probably
CC serves as the mating receptor on recipient cells. {ECO:0000255|HAMAP-
CC Rule:MF_00842}.
CC -!- SUBUNIT: Monomer and homodimer. {ECO:0000255|HAMAP-Rule:MF_00842}.
CC -!- SUBCELLULAR LOCATION: Cell outer membrane {ECO:0000255|HAMAP-
CC Rule:MF_00842}; Multi-pass membrane protein {ECO:0000255|HAMAP-
CC Rule:MF_00842}.
CC -!- DOMAIN: The extracellular loops are most variable in sequence, and in
CC some bacteria confer sensitivity to phage and/or colicins.
CC {ECO:0000255|HAMAP-Rule:MF_00842}.
CC -!- SIMILARITY: Belongs to the outer membrane OOP (TC 1.B.6) superfamily.
CC OmpA family. {ECO:0000255|HAMAP-Rule:MF_00842}.
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DR EMBL; X02006; CAA26037.1; -; Genomic_DNA.
DR EMBL; AE006468; AAL20003.1; -; Genomic_DNA.
DR PIR; A03436; MMEBAT.
DR RefSeq; NP_460044.1; NC_003197.2.
DR RefSeq; WP_001674965.1; NC_003197.2.
DR AlphaFoldDB; P02936; -.
DR SMR; P02936; -.
DR STRING; 99287.STM1070; -.
DR PaxDb; 99287-STM1070; -.
DR GeneID; 1252588; -.
DR KEGG; stm:STM1070; -.
DR PATRIC; fig|99287.12.peg.1135; -.
DR HOGENOM; CLU_031536_0_0_6; -.
DR OMA; HDTGFYG; -.
DR PhylomeDB; P02936; -.
DR BioCyc; SENT99287:STM1070-MONOMER; -.
DR PHI-base; PHI:8304; -.
DR Proteomes; UP000001014; Chromosome.
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-UniRule.
DR GO; GO:0034220; P:monoatomic ion transmembrane transport; IEA:UniProtKB-UniRule.
DR CDD; cd07185; OmpA_C-like; 1.
DR Gene3D; 2.40.160.20; -; 1.
DR Gene3D; 3.30.1330.60; OmpA-like domain; 1.
DR HAMAP; MF_00842; OmpA; 1.
DR InterPro; IPR011250; OMP/PagP_b-brl.
DR InterPro; IPR006664; OMP_bac.
DR InterPro; IPR002368; OmpA.
DR InterPro; IPR006665; OmpA-like.
DR InterPro; IPR006690; OMPA-like_CS.
DR InterPro; IPR036737; OmpA-like_sf.
DR InterPro; IPR000498; OmpA-like_TM_dom.
DR PANTHER; PTHR30329:SF23; LIPOPROTEIN YIAD-RELATED; 1.
DR PANTHER; PTHR30329; STATOR ELEMENT OF FLAGELLAR MOTOR COMPLEX; 1.
DR Pfam; PF00691; OmpA; 1.
DR Pfam; PF01389; OmpA_membrane; 1.
DR PRINTS; PR01021; OMPADOMAIN.
DR PRINTS; PR01022; OUTRMMBRANEA.
DR SUPFAM; SSF56925; OMPA-like; 1.
DR SUPFAM; SSF103088; OmpA-like; 1.
DR PROSITE; PS01068; OMPA_1; 1.
DR PROSITE; PS51123; OMPA_2; 1.
PE 3: Inferred from homology;
KW Cell outer membrane; Conjugation; Disulfide bond; Ion transport; Membrane;
KW Porin; Reference proteome; Repeat; Signal; Transmembrane;
KW Transmembrane beta strand; Transport.
FT SIGNAL 1..21
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00842"
FT CHAIN 22..350
FT /note="Outer membrane protein A"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00842"
FT /id="PRO_0000020099"
FT TRANSMEM 27..37
FT /note="Beta stranded"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00842"
FT TRANSMEM 55..66
FT /note="Beta stranded"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00842"
FT TRANSMEM 70..78
FT /note="Beta stranded"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00842"
FT TRANSMEM 96..107
FT /note="Beta stranded"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00842"
FT TRANSMEM 112..120
FT /note="Beta stranded"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00842"
FT TRANSMEM 146..155
FT /note="Beta stranded"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00842"
FT TRANSMEM 160..167
FT /note="Beta stranded"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00842"
FT TRANSMEM 186..194
FT /note="Beta stranded"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00842"
FT REPEAT 205..206
FT /note="1"
FT REPEAT 207..208
FT /note="2"
FT REPEAT 209..210
FT /note="3"
FT REPEAT 211..212
FT /note="4"
FT DOMAIN 214..342
FT /note="OmpA-like"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00842"
FT REGION 205..212
FT /note="4 X 2 AA tandem repeats of A-P"
FT SITE 73
FT /note="Part of salt bridge gating mechanism"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00842"
FT SITE 163
FT /note="Part of salt bridge gating mechanism"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00842"
FT DISULFID 315..327
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00842"
FT CONFLICT 114
FT /note="V -> F (in Ref. 1; CAA26037)"
FT /evidence="ECO:0000305"
FT CONFLICT 247
FT /note="S -> I (in Ref. 1; CAA26037)"
FT /evidence="ECO:0000305"
SQ SEQUENCE 350 AA; 37515 MW; B4AC52C8C5DF54FE CRC64;
MKKTAIAIAV ALAGFATVAQ AAPKDNTWYA GAKLGWSQYH DTGFIHNDGP THENQLGAGA
FGGYQVNPYV GFEMGYDWLG RMPYKGDNIN GAYKAQGVQL TAKLGYPITD DLDVYTRLGG
MVWRADTKSN VPGGPSTKDH DTGVSPVFAG GIEYAITPEI ATRLEYQWTN NIGDANTIGT
RPDNGLLSVG VSYRFGQQEA APVVAPAPAP APEVQTKHFT LKSDVLFNFN KSTLKPEGQQ
ALDQLYSQLS NLDPKDGSVV VLGFTDRIGS DAYNQGLSEK RAQSVVDYLI SKGIPSDKIS
ARGMGESNPV TGNTCDNVKP RAALIDCLAP DRRVEIEVKG VKDVVTQPQA
//
