ID   GVPG2_HALSA             Reviewed;          83 AA.
AC   P33960; Q9HHT5;
DT   01-FEB-1994, integrated into UniProtKB/Swiss-Prot.
DT   01-FEB-1994, sequence version 1.
DT   13-SEP-2023, entry version 89.
DE   RecName: Full=Gas vesicle protein G2;
DE            Short=GvpG2;
GN   Name=gvpG2 {ECO:0000303|PubMed:1404376, ECO:0000312|EMBL:AAG20891.1};
GN   Synonyms=c-gvpG {ECO:0000303|PubMed:1404376}, gvpG;
GN   OrderedLocusNames=VNG_6236G {ECO:0000312|EMBL:AAG20891.1};
OS   Halobacterium salinarum (strain ATCC 700922 / JCM 11081 / NRC-1)
OS   (Halobacterium halobium).
OG   Plasmid pNRC200.
OC   Archaea; Euryarchaeota; Stenosarchaea group; Halobacteria; Halobacteriales;
OC   Halobacteriaceae; Halobacterium.
OX   NCBI_TaxID=64091;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA], AND GAS VESICLE GENE CLUSTER.
RC   STRAIN=NRC-817;
RX   PubMed=1404376; DOI=10.1016/0022-2836(92)90914-6;
RA   Englert C., Krueger K., Offner S., Pfeifer F.;
RT   "Three different but related gene clusters encoding gas vesicles in
RT   halophilic archaea.";
RL   J. Mol. Biol. 227:586-592(1992).
RN   [2] {ECO:0000312|EMBL:CAA64346.1}
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA], AND INDUCTION.
RC   STRAIN=PHH1 /PHH4;
RX   PubMed=8763925; DOI=10.1128/jb.178.14.4012-4019.1996;
RA   Krueger K., Pfeifer F.;
RT   "Transcript analysis of the c-vac region and differential synthesis of the
RT   two regulatory gas vesicle proteins GvpD and GvpE in Halobacterium
RT   salinarium PHH4.";
RL   J. Bacteriol. 178:4012-4019(1996).
RN   [3] {ECO:0000312|EMBL:AAG20891.1}
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 700922 / JCM 11081 / NRC-1; PLASMID=pNRC200;
RX   PubMed=11016950; DOI=10.1073/pnas.190337797;
RA   Ng W.V., Kennedy S.P., Mahairas G.G., Berquist B., Pan M., Shukla H.D.,
RA   Lasky S.R., Baliga N.S., Thorsson V., Sbrogna J., Swartzell S., Weir D.,
RA   Hall J., Dahl T.A., Welti R., Goo Y.A., Leithauser B., Keller K., Cruz R.,
RA   Danson M.J., Hough D.W., Maddocks D.G., Jablonski P.E., Krebs M.P.,
RA   Angevine C.M., Dale H., Isenbarger T.A., Peck R.F., Pohlschroder M.,
RA   Spudich J.L., Jung K.-H., Alam M., Freitas T., Hou S., Daniels C.J.,
RA   Dennis P.P., Omer A.D., Ebhardt H., Lowe T.M., Liang P., Riley M., Hood L.,
RA   DasSarma S.;
RT   "Genome sequence of Halobacterium species NRC-1.";
RL   Proc. Natl. Acad. Sci. U.S.A. 97:12176-12181(2000).
RN   [4]
RP   FUNCTION IN BUOYANCY, AND POSSIBLE INDUCTION BY OXYGEN LIMITATION.
RC   STRAIN=PHH1;
RX   PubMed=33711860; DOI=10.1099/00221287-143-2-467;
RA   Beard S.J., Hayes P.K., Walsby A.E.;
RT   "Growth competition between Halobacterium salinarium strain PHH1 and
RT   mutants affected in gas vesicle synthesis.";
RL   Microbiology 143:467-473(1997).
RN   [5]
RP   FUNCTION.
RC   STRAIN=PHH1;
RX   PubMed=9611808; DOI=10.1099/00221287-144-5-1331;
RA   Offner S., Ziese U., Wanner G., Typke D., Pfeifer F.;
RT   "Structural characteristics of halobacterial gas vesicles.";
RL   Microbiology 144:1331-1342(1998).
CC   -!- FUNCTION: Proteins GvpF to GvpM might be involved in nucleating gas
CC       vesicle formation. A minor component of the gas vesicle (By
CC       similarity). Gas vesicles are hollow, gas filled proteinaceous
CC       nanostructures found in several microbial planktonic microorganisms.
CC       They allow positioning of halobacteria at the optimal depth for growth
CC       in the poorly aerated, shallow brine pools of their habitat
CC       (PubMed:33711860). {ECO:0000250|UniProtKB:P24371,
CC       ECO:0000269|PubMed:33711860}.
CC   -!- FUNCTION: Expression of 2 c-vac DNA fragments containing 2 divergently
CC       transcribed regions (gvpE-gvpF-gvpG-gvpH-gvpI-gvpJ-gvpK-gvpL-gvpM and
CC       gvpA-gvpC-gvpN-gvpO) allows H.volcanii to produce gas vesicles.
CC       {ECO:0000269|PubMed:9611808}.
CC   -!- SUBUNIT: GvpF to GvpM interact with each other in vitro, and may form
CC       multi-subunit complex(es). {ECO:0000250|UniProtKB:P24371}.
CC   -!- SUBCELLULAR LOCATION: Gas vesicle {ECO:0000250|UniProtKB:P24371}.
CC   -!- INDUCTION: In PHH4 (a deletion of the p-vac locus) transcribed in all
CC       growth phases, maximal expression in mid-stationary phase. An unstable
CC       6kb transcript able to cover gvpD-gvpE-gvpF-gvpG-gvpH-gvpI-gvpJ-gvpK-
CC       gvpL-gvpM is detected, as well as smaller transcripts (PubMed:8763925).
CC       Gas vesicles appear earlier when grown in static culture, possibly due
CC       to O(2)-limitation (PubMed:33711860). {ECO:0000269|PubMed:33711860,
CC       ECO:0000269|PubMed:8763925}.
CC   -!- MISCELLANEOUS: Encoded in a 14-gene locus called c-vac which produces
CC       cylindrical gas vesicles only in the stationary growth phase.
CC       {ECO:0000269|PubMed:1404376, ECO:0000269|PubMed:8763925}.
CC   -!- SIMILARITY: Belongs to the gas vesicle GvpG family. {ECO:0000305}.
CC   -!- SEQUENCE CAUTION:
CC       Sequence=AAG20891.1; Type=Erroneous initiation; Note=Truncated N-terminus.; Evidence={ECO:0000305};
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DR   EMBL; X64730; CAA45990.1; -; Genomic_DNA.
DR   EMBL; X94688; CAA64346.1; -; Genomic_DNA.
DR   EMBL; AE004438; AAG20891.1; ALT_INIT; Genomic_DNA.
DR   RefSeq; WP_012289627.1; NZ_BK010831.1.
DR   AlphaFoldDB; P33960; -.
DR   SMR; P33960; -.
DR   EnsemblBacteria; AAG20891; AAG20891; VNG_6236G.
DR   GeneID; 68695195; -.
DR   KEGG; hal:VNG_6236G; -.
DR   PATRIC; fig|64091.14.peg.2239; -.
DR   HOGENOM; CLU_185764_0_0_2; -.
DR   InParanoid; P33960; -.
DR   OrthoDB; 214403at2157; -.
DR   Proteomes; UP000000554; Plasmid pNRC200.
DR   GO; GO:0031411; C:gas vesicle; IEA:UniProtKB-SubCell.
PE   1: Evidence at protein level;
KW   Gas vesicle; Plasmid; Reference proteome.
FT   CHAIN           1..83
FT                   /note="Gas vesicle protein G2"
FT                   /id="PRO_0000182685"
SQ   SEQUENCE   83 AA;  10023 MW;  6A26072E03735A25 CRC64;
     MFVLDDLFVN PFLSLVDILQ TMALDELYDT SEIRDQIKEN QLLYEIGDRP ADEYERRKQE
     LEAQLRTAEQ IRDQMRDRME IKN
//