ID   SMPX_PIG                Reviewed;          86 AA.
AC   Q0MUU2;
DT   16-JUN-2009, integrated into UniProtKB/Swiss-Prot.
DT   19-SEP-2006, sequence version 1.
DT   03-AUG-2022, entry version 59.
DE   RecName: Full=Small muscular protein;
GN   Name=SMPX;
OS   Sus scrofa (Pig).
OC   Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia;
OC   Eutheria; Laurasiatheria; Artiodactyla; Suina; Suidae; Sus.
OX   NCBI_TaxID=9823;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [MRNA], TISSUE SPECIFICITY, AND DEVELOPMENTAL STAGE.
RA   Guan H.P., Fan B., Li K., Zhu M.J., Yerle M., Liu B.;
RT   "Sequence characterization, expression profile, chromosomal localization
RT   and polymorphism of the porcine SMPX gene.";
RL   Asian-Australas. J. Anim. Sci. 19:931-937(2006).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [MRNA].
RA   Ren Z.Q., Xiong Y.Z.;
RT   "cDNA cloning and identification of a differentially expressed gene porcine
RT   SMPX between F1 crossbreds and their parents.";
RL   Submitted (JUL-2006) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: Plays a role in the regulatory network through which muscle
CC       cells coordinate their structural and functional states during growth,
CC       adaptation, and repair. {ECO:0000250}.
CC   -!- TISSUE SPECIFICITY: High level of expression found in the heart and
CC       skeletal muscle, a very low expression in the lung and spleen and no
CC       expression found in the liver, kidney, fat and brain.
CC       {ECO:0000269|Ref.1}.
CC   -!- DEVELOPMENTAL STAGE: Shows a differential expression level in the
CC       skeletal muscle, the expression in 65-day embryos being higher than
CC       other stages. {ECO:0000269|Ref.1}.
CC   -!- SIMILARITY: Belongs to the SMPX family. {ECO:0000305}.
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DR   EMBL; DQ104414; AAZ80045.1; -; mRNA.
DR   EMBL; DQ845243; ABH10081.1; -; mRNA.
DR   RefSeq; NP_001072155.1; NM_001078687.2.
DR   RefSeq; XP_013847567.1; XM_013992113.1.
DR   AlphaFoldDB; Q0MUU2; -.
DR   STRING; 9823.ENSSSCP00000024817; -.
DR   PaxDb; Q0MUU2; -.
DR   PeptideAtlas; Q0MUU2; -.
DR   PRIDE; Q0MUU2; -.
DR   Ensembl; ENSSSCT00005031305; ENSSSCP00005019071; ENSSSCG00005019887.
DR   Ensembl; ENSSSCT00005031355; ENSSSCP00005019105; ENSSSCG00005019887.
DR   Ensembl; ENSSSCT00070046443; ENSSSCP00070039184; ENSSSCG00070023290.
DR   GeneID; 780438; -.
DR   KEGG; ssc:780438; -.
DR   CTD; 23676; -.
DR   eggNOG; ENOG502S62J; Eukaryota.
DR   HOGENOM; CLU_2512070_0_0_1; -.
DR   InParanoid; Q0MUU2; -.
DR   OMA; PPRKKEC; -.
DR   OrthoDB; 1588044at2759; -.
DR   TreeFam; TF338181; -.
DR   Proteomes; UP000008227; Unplaced.
DR   Proteomes; UP000314985; Unassembled WGS sequence.
DR   Genevisible; Q0MUU2; SS.
DR   GO; GO:0043034; C:costamere; IBA:GO_Central.
DR   GO; GO:0031430; C:M band; IBA:GO_Central.
DR   GO; GO:0005927; C:muscle tendon junction; IBA:GO_Central.
DR   InterPro; IPR029268; Chisel.
DR   PANTHER; PTHR17416; PTHR17416; 1.
DR   Pfam; PF15355; Chisel; 1.
PE   2: Evidence at transcript level;
KW   Reference proteome.
FT   CHAIN           1..86
FT                   /note="Small muscular protein"
FT                   /id="PRO_0000378198"
FT   REGION          20..64
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   COMPBIAS        34..57
FT                   /note="Basic and acidic residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ   SEQUENCE   86 AA;  9346 MW;  56459329031F037D CRC64;
     MSKQPVSNVR AIQANINIPM GAFRPGAGQP PRKKECTPET EEAVLPTSDE EKKPIPGAKK
     LPGPAVNLSE IQNIKSELKY VPRAEQ