ID   HCY2_PANJA              Reviewed;          20 AA.
AC   P82312;
DT   06-DEC-2002, integrated into UniProtKB/Swiss-Prot.
DT   01-JUN-2001, sequence version 1.
DT   25-MAY-2022, entry version 39.
DE   RecName: Full=Hemocyanin subunit II;
DE   Flags: Fragment;
OS   Panulirus japonicus (Japanese spiny lobster) (Palinurus japonicus).
OC   Eukaryota; Metazoa; Ecdysozoa; Arthropoda; Crustacea; Multicrustacea;
OC   Malacostraca; Eumalacostraca; Eucarida; Decapoda; Pleocyemata; Achelata;
OC   Palinuroidea; Palinuridae; Panulirus.
OX   NCBI_TaxID=6736 {ECO:0000305};
RN   [1] {ECO:0000305}
RP   PROTEIN SEQUENCE.
RC   TISSUE=Serum;
RX   PubMed=3360019; DOI=10.1111/j.1432-1033.1988.tb14016.x;
RA   Makino N., Kimura S.;
RT   "Subunits of Panulirus japonicus hemocyanin. 1. Isolation and properties.";
RL   Eur. J. Biochem. 173:423-430(1988).
CC   -!- FUNCTION: Hemocyanins are copper-containing oxygen carriers occurring
CC       freely dissolved in the hemolymph of many mollusks and arthropods.
CC   -!- SUBUNIT: Composed of 3 major subunits (IB, II and III) and 1 minor
CC       subunit (IA) which form homohexamers and heterohexamers. May also form
CC       larger structures.
CC   -!- SUBCELLULAR LOCATION: Secreted, extracellular space.
CC   -!- TISSUE SPECIFICITY: Hemolymph.
CC   -!- SIMILARITY: Belongs to the tyrosinase family. Hemocyanin subfamily.
CC       {ECO:0000305}.
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DR   PIR; S00494; S00494.
DR   AlphaFoldDB; P82312; -.
DR   GO; GO:0005615; C:extracellular space; IEA:UniProtKB-SubCell.
DR   GO; GO:0005344; F:oxygen carrier activity; IEA:UniProtKB-KW.
PE   1: Evidence at protein level;
KW   Copper; Direct protein sequencing; Oxygen transport; Secreted; Transport.
FT   CHAIN           1..>20
FT                   /note="Hemocyanin subunit II"
FT                   /id="PRO_0000204296"
FT   REGION          1..20
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   NON_TER         20
FT                   /evidence="ECO:0000305"
SQ   SEQUENCE   20 AA;  2219 MW;  42D3053A886102C3 CRC64;
     DVVASSTAHK QQDINHLLDK