ID   PRVB_BOACO              Reviewed;         109 AA.
AC   P02615;
DT   21-JUL-1986, integrated into UniProtKB/Swiss-Prot.
DT   21-JUL-1986, sequence version 1.
DT   03-AUG-2022, entry version 83.
DE   RecName: Full=Parvalbumin beta;
OS   Boa constrictor (Boa).
OC   Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi;
OC   Lepidosauria; Squamata; Bifurcata; Unidentata; Episquamata; Toxicofera;
OC   Serpentes; Henophidia; Boidae; Boinae; Boa.
OX   NCBI_TaxID=8574;
RN   [1]
RP   PROTEIN SEQUENCE.
RX   PubMed=6599978; DOI=10.1093/oxfordjournals.molbev.a040332;
RA   Maeda N., Zhu D., Fitch W.M.;
RT   "Amino acid sequences of lower vertebrate parvalbumins and their evolution:
RT   parvalbumins of boa, turtle, and salamander.";
RL   Mol. Biol. Evol. 1:473-488(1984).
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}.
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DR   PIR; A03050; PVSNBB.
DR   AlphaFoldDB; P02615; -.
DR   SMR; P02615; -.
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   1: Evidence at protein level;
KW   Calcium; Direct protein sequencing; Metal-binding; Muscle protein; Repeat.
FT   CHAIN           1..109
FT                   /note="Parvalbumin beta"
FT                   /id="PRO_0000073604"
FT   DOMAIN          38..73
FT                   /note="EF-hand 1"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00448"
FT   DOMAIN          77..109
FT                   /note="EF-hand 2"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00448"
FT   BINDING         51
FT                   /ligand="Ca(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29108"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00448"
FT   BINDING         53
FT                   /ligand="Ca(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29108"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00448"
FT   BINDING         55
FT                   /ligand="Ca(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29108"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00448"
FT   BINDING         57
FT                   /ligand="Ca(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29108"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00448"
FT   BINDING         59
FT                   /ligand="Ca(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29108"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000250|UniProtKB:P02621"
FT   BINDING         62
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         90
FT                   /ligand="Ca(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29108"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00448"
FT   BINDING         92
FT                   /ligand="Ca(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29108"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00448"
FT   BINDING         94
FT                   /ligand="Ca(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29108"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00448"
FT   BINDING         96
FT                   /ligand="Ca(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29108"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00448"
FT   BINDING         101
FT                   /ligand="Ca(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29108"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00448"
SQ   SEQUENCE   109 AA;  11804 MW;  97E965FADA8F2BF5 CRC64;
     AFAGILSDAD IAAGLQSCQA ADSFSCKTFF AKSGLHSKSK DQLTKVFGVI DRDKSGYIEE
     DELKKFLQNF DGKARDLTDK ETAEFLKEGD TDGDGKIGVE EFVVLVTKG