ID   ACT8_XENLA              Reviewed;         376 AA.
AC   P53506;
DT   01-OCT-1996, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-1996, sequence version 1.
DT   25-MAY-2022, entry version 71.
DE   RecName: Full=Actin, cytoplasmic type 8;
OS   Xenopus laevis (African clawed frog).
OC   Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Amphibia;
OC   Batrachia; Anura; Pipoidea; Pipidae; Xenopodinae; Xenopus; Xenopus.
OX   NCBI_TaxID=8355;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX   PubMed=3446480; DOI=10.1242/dev.101.2.393;
RA   Mohun T.J., Garrett N.;
RT   "An amphibian cytoskeletal-type actin gene is expressed exclusively in
RT   muscle tissue.";
RL   Development 101:393-402(1987).
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   -!- SUBUNIT: Polymerization of globular actin (G-actin) leads to a
CC       structural filament (F-actin) in the form of a two-stranded helix. Each
CC       actin can bind to 4 others.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm, cytoskeleton.
CC   -!- PTM: Oxidation of Met-45 and Met-48 by MICALs (mical1, mical2 or
CC       mical3) to form methionine sulfoxide promotes actin filament
CC       depolymerization. Mical1 and mical2 produce the (R)-S-oxide form. The
CC       (R)-S-oxide form is reverted by msrb1 and msrb2, which promote actin
CC       repolymerization (By similarity). {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the actin family. {ECO:0000305}.
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DR   EMBL; M24770; AAA49639.1; -; Genomic_DNA.
DR   AlphaFoldDB; P53506; -.
DR   SMR; P53506; -.
DR   Proteomes; UP000186698; Genome assembly.
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   3: Inferred from homology;
KW   ATP-binding; Cytoplasm; Cytoskeleton; Nucleotide-binding; Oxidation;
KW   Reference proteome.
FT   CHAIN           1..376
FT                   /note="Actin, cytoplasmic type 8"
FT                   /id="PRO_0000089054"
FT   MOD_RES         45
FT                   /note="Methionine (R)-sulfoxide"
FT                   /evidence="ECO:0000250"
FT   MOD_RES         48
FT                   /note="Methionine (R)-sulfoxide"
FT                   /evidence="ECO:0000250"
SQ   SEQUENCE   376 AA;  41848 MW;  A9E3D5A214306298 CRC64;
     MAEEEIAALV IDNGSGMCKA GFAGDDAPRA VFPSIVGRPR HQGVMVGMGQ KDSYVGDEAQ
     SKRGILTLKY PIEHGIVTNW DDMEKIWHHT FYNELRVAPE EHPVLLTEAP LNPKANREKM
     TQIMFETFNT PAMYVAIQAV LSLYASGRTT GIVMDSGDGV THTVPIYEGY ALPHAILRLD
     LAGRDLTDYL MKILTERGYS FTTTAEREIV RDIKEKPCYV ALDFEQEMAT AASSSSLEKS
     YELPDGQVIT IGNERFRCPE ALFQPSFLGM ESCGIHETTF NSIMKCDVDI RKDLYANTVL
     SGGTTMYPGI ADRMQKEITA LAPSTMKIKI IAPPERKYSV WIGGSILASL STFQQMWISK
     QEYDESGPSI VHRKCF