ID   PRVB_XENLA              Reviewed;         109 AA.
AC   P05940;
DT   01-NOV-1988, integrated into UniProtKB/Swiss-Prot.
DT   23-JAN-2007, sequence version 3.
DT   03-AUG-2022, entry version 99.
DE   RecName: Full=Parvalbumin beta;
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 [MRNA].
RX   PubMed=3558484; DOI=10.1083/jcb.104.4.841;
RA   Kay B.K., Shah A.J., Halstead W.E.;
RT   "Expression of the Ca2+-binding protein, parvalbumin, during embryonic
RT   development of the frog, Xenopus laevis.";
RL   J. Cell Biol. 104:841-847(1987).
CC   -!- FUNCTION: In muscle, parvalbumin is thought to be involved in
CC       relaxation after contraction. It binds two calcium ions (By
CC       similarity). {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the parvalbumin family. {ECO:0000305}.
CC   -!- SEQUENCE CAUTION:
CC       Sequence=AAA49925.1; Type=Erroneous initiation; Note=Extended N-terminus.; Evidence={ECO:0000305};
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DR   EMBL; M28644; AAA49925.1; ALT_INIT; mRNA.
DR   PIR; A27273; PVXLB.
DR   AlphaFoldDB; P05940; -.
DR   SMR; P05940; -.
DR   Proteomes; UP000186698; Genome assembly.
DR   GO; GO:0005509; F:calcium ion binding; IEA:InterPro.
DR   InterPro; IPR011992; EF-hand-dom_pair.
DR   InterPro; IPR018247; EF_Hand_1_Ca_BS.
DR   InterPro; IPR002048; EF_hand_dom.
DR   InterPro; IPR008080; Parvalbumin.
DR   PANTHER; PTHR11653; PTHR11653; 1.
DR   Pfam; PF13499; EF-hand_7; 1.
DR   SMART; SM00054; EFh; 2.
DR   SUPFAM; SSF47473; SSF47473; 1.
DR   PROSITE; PS00018; EF_HAND_1; 2.
DR   PROSITE; PS50222; EF_HAND_2; 2.
PE   3: Inferred from homology;
KW   Calcium; Metal-binding; Muscle protein; Reference proteome; Repeat.
FT   INIT_MET        1
FT                   /note="Removed"
FT                   /evidence="ECO:0000250"
FT   CHAIN           2..109
FT                   /note="Parvalbumin beta"
FT                   /id="PRO_0000073623"
FT   DOMAIN          39..74
FT                   /note="EF-hand 1"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00448"
FT   DOMAIN          78..109
FT                   /note="EF-hand 2"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00448"
FT   BINDING         52
FT                   /ligand="Ca(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29108"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000250|UniProtKB:P02621,
FT                   ECO:0000255|PROSITE-ProRule:PRU00448"
FT   BINDING         54
FT                   /ligand="Ca(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29108"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000250|UniProtKB:P02621,
FT                   ECO:0000255|PROSITE-ProRule:PRU00448"
FT   BINDING         56
FT                   /ligand="Ca(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29108"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000250|UniProtKB:P02621,
FT                   ECO:0000255|PROSITE-ProRule:PRU00448"
FT   BINDING         58
FT                   /ligand="Ca(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29108"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000250|UniProtKB:P02621"
FT   BINDING         60
FT                   /ligand="Ca(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29108"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000250|UniProtKB:P02621"
FT   BINDING         63
FT                   /ligand="Ca(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29108"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000250|UniProtKB:P02621,
FT                   ECO:0000255|PROSITE-ProRule:PRU00448"
FT   BINDING         91
FT                   /ligand="Ca(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29108"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000250|UniProtKB:P02621,
FT                   ECO:0000255|PROSITE-ProRule:PRU00448"
FT   BINDING         93
FT                   /ligand="Ca(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29108"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000250|UniProtKB:P02621,
FT                   ECO:0000255|PROSITE-ProRule:PRU00448"
FT   BINDING         95
FT                   /ligand="Ca(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29108"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000250|UniProtKB:P02621,
FT                   ECO:0000255|PROSITE-ProRule:PRU00448"
FT   BINDING         97
FT                   /ligand="Ca(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29108"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00448"
FT   BINDING         102
FT                   /ligand="Ca(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29108"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000250|UniProtKB:P02621,
FT                   ECO:0000255|PROSITE-ProRule:PRU00448"
SQ   SEQUENCE   109 AA;  11623 MW;  828453CE08460727 CRC64;
     MAFGGILSEA DISAALQNCQ AADSFNFKTF FAQSGLSSKS ADDVKNVFAI LDQDRSGFIE
     EEELKLFLQN FSASARALTD AETKAFLAAG DSDGDGKIGV EEFQSLVKP