ID   GVPA_MICDP              Reviewed;          71 AA.
AC   P07060;
DT   01-APR-1988, integrated into UniProtKB/Swiss-Prot.
DT   23-JAN-2007, sequence version 2.
DT   25-MAY-2022, entry version 75.
DE   RecName: Full=Gas vesicle structural protein;
DE            Short=GVP;
GN   Name=gvpA;
GN   and
GN   Name=gvpB; Synonyms=gvpA2;
OS   Microchaete diplosiphon (Fremyella diplosiphon).
OC   Bacteria; Cyanobacteria; Nostocales; Rivulariaceae; Microchaete.
OX   NCBI_TaxID=1197;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA] (GVPA).
RX   PubMed=2997744; DOI=10.1093/nar/13.20.7223;
RA   Tandeau de Marsac N., Mazel D., Bryant D.A., Houmard J.;
RT   "Molecular cloning and nucleotide sequence of a developmentally regulated
RT   gene from the cyanobacterium Calothrix PCC 7601: a gas vesicle protein
RT   gene.";
RL   Nucleic Acids Res. 13:7223-7236(1985).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA] (GVPB/GVPA2).
RX   PubMed=3111941; DOI=10.1016/0378-1119(87)90350-7;
RA   Damerval T., Houmard J., Guglielmi G., Csizar K., Tandeau de Marsac N.;
RT   "A developmentally regulated gvpABC operon is involved in the formation of
RT   gas vesicles in the cyanobacterium Calothrix 7601.";
RL   Gene 54:83-92(1987).
RN   [3]
RP   PROTEIN SEQUENCE OF 2-57.
RX   PubMed=3098234; DOI=10.1042/bj2360031;
RA   Hayes P.K., Walsby A.E., Walker J.E.;
RT   "Complete amino acid sequence of cyanobacterial gas-vesicle protein
RT   indicates a 70-residue molecule that corresponds in size to the
RT   crystallographic unit cell.";
RL   Biochem. J. 236:31-36(1986).
CC   -!- FUNCTION: Gas vesicles are small, hollow, gas filled protein structures
CC       that are found in several microbial planktonic microorganisms. They
CC       allow the positioning of the organism at the favorable depth for
CC       growth. GvpA type proteins form the essential core of the structure.
CC   -!- SUBCELLULAR LOCATION: Vacuole, gas vesicle membrane.
CC   -!- SIMILARITY: Belongs to the gas vesicle protein type A family.
CC       {ECO:0000305}.
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DR   EMBL; X06085; CAA29468.1; -; Genomic_DNA.
DR   EMBL; X06085; CAA29467.1; -; Genomic_DNA.
DR   AlphaFoldDB; P07060; -.
DR   GO; GO:0033172; C:gas vesicle shell; IEA:UniProtKB-SubCell.
DR   GO; GO:0005773; C:vacuole; IEA:UniProtKB-KW.
DR   GO; GO:0012506; C:vesicle membrane; IEA:InterPro.
DR   GO; GO:0005198; F:structural molecule activity; IEA:InterPro.
DR   HAMAP; MF_00576; Gas_vesicle_A; 1.
DR   InterPro; IPR000638; Gas-vesicle_GvpA.
DR   InterPro; IPR018493; Gas-vesicle_GvpA_CS.
DR   Pfam; PF00741; Gas_vesicle; 1.
DR   PROSITE; PS00234; GAS_VESICLE_A_1; 1.
DR   PROSITE; PS00669; GAS_VESICLE_A_2; 1.
PE   1: Evidence at protein level;
KW   Direct protein sequencing; Gas vesicle; Membrane; Vacuole.
FT   INIT_MET        1
FT                   /note="Removed"
FT                   /evidence="ECO:0000269|PubMed:3098234"
FT   CHAIN           2..71
FT                   /note="Gas vesicle structural protein"
FT                   /id="PRO_0000199984"
FT   VARIANT         27
FT                   /note="D -> N"
SQ   SEQUENCE   71 AA;  7515 MW;  804D350E7678EBFB CRC64;
     MAVEKTNSSS SLAEVIDRIL DKGIVVDAWV RVSLVGIELL AIEARIVIAS VETYLKYAEA
     VGLTQSAAVP A