ID   ACTM_BRABE              Reviewed;         379 AA.
AC   Q93130;
DT   15-JUL-1998, integrated into UniProtKB/Swiss-Prot.
DT   01-FEB-1997, sequence version 1.
DT   03-AUG-2022, entry version 82.
DE   RecName: Full=Actin, muscle;
DE   AltName: Full=BbMA1;
DE   Flags: Precursor;
OS   Branchiostoma belcheri (Amphioxus).
OC   Eukaryota; Metazoa; Chordata; Cephalochordata; Leptocardii; Amphioxiformes;
OC   Branchiostomidae; Branchiostoma.
OX   NCBI_TaxID=7741;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [MRNA].
RX   PubMed=9931404; DOI=10.1016/s0378-1119(98)00608-8;
RA   Kusakabe R., Satoh N., Holland L.Z., Kusakabe T.;
RT   "Genomic organization and evolution of actin genes in the amphioxus
RT   Branchiostoma belcheri and Branchiostoma floridae.";
RL   Gene 227:1-10(1999).
CC   -!- FUNCTION: Actins are highly conserved proteins that are involved in
CC       various types of cell motility and are ubiquitously expressed in all
CC       eukaryotic cells.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm, cytoskeleton.
CC   -!- SIMILARITY: Belongs to the actin family. {ECO:0000305}.
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DR   EMBL; D87739; BAA13445.1; -; mRNA.
DR   AlphaFoldDB; Q93130; -.
DR   SMR; Q93130; -.
DR   PRIDE; Q93130; -.
DR   Proteomes; UP000515135; Unplaced.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-KW.
DR   GO; GO:0005856; C:cytoskeleton; IEA:UniProtKB-SubCell.
DR   GO; GO:0005524; F:ATP binding; IEA:UniProtKB-KW.
DR   InterPro; IPR004000; Actin.
DR   InterPro; IPR020902; Actin/actin-like_CS.
DR   InterPro; IPR004001; Actin_CS.
DR   InterPro; IPR043129; ATPase_NBD.
DR   PANTHER; PTHR11937; PTHR11937; 1.
DR   Pfam; PF00022; Actin; 1.
DR   PRINTS; PR00190; ACTIN.
DR   SMART; SM00268; ACTIN; 1.
DR   SUPFAM; SSF53067; SSF53067; 2.
DR   PROSITE; PS00406; ACTINS_1; 1.
DR   PROSITE; PS00432; ACTINS_2; 1.
DR   PROSITE; PS01132; ACTINS_ACT_LIKE; 1.
PE   2: Evidence at transcript level;
KW   Acetylation; ATP-binding; Cytoplasm; Cytoskeleton; Muscle protein;
KW   Nucleotide-binding; Reference proteome.
FT   PROPEP          1..2
FT                   /note="Removed in mature form"
FT                   /evidence="ECO:0000250"
FT                   /id="PRO_0000000642"
FT   CHAIN           3..379
FT                   /note="Actin, muscle"
FT                   /id="PRO_0000000643"
FT   MOD_RES         3
FT                   /note="N-acetylaspartate"
FT                   /evidence="ECO:0000250"
SQ   SEQUENCE   379 AA;  42062 MW;  9B43FC9B89D310C3 CRC64;
     MCDDEEEEAT PLVCDNGSGL VKAGFAGDDA PRAVFPSIVG RPRHQGVMVG MGQKDAYVGD
     EAQSKRGILT LKYPVEHGIV TNWDDMEKVW HHTFYNELRI APEENPCLLT EAPLNPKANR
     EKMTQIMFET FNSPAMYVCI QAVLCLYASG RTTGIVLDSG DGVSHTVPIY EGYAMPHAIL
     RLDLAGRELT NYLMRVMCDR GYAFVTTAER EIVRDIKEKL GYVALDFEQE MLTAATSTSL
     EKSYELPDGQ VITIGNERFR CAEALFQPSF LGMESAGVHE TVYNSIMKCD IDVRKDLYAN
     NVLSGGTTMF PGIGDRMQKE MVSLAPSTMK IKIIAPPERK YSCWIGGSIL ASLSTFAAMW
     IKKSEYDEAG PAIVHRKCF