ID   GLB2_PETMA              Reviewed;         150 AA.
AC   Q9I9I3;
DT   01-JUN-2001, integrated into UniProtKB/Swiss-Prot.
DT   23-JAN-2007, sequence version 3.
DT   03-AUG-2022, entry version 86.
DE   RecName: Full=Globin-2;
DE   AltName: Full=Globin II;
DE   AltName: Full=Hemoglobin PmII';
OS   Petromyzon marinus (Sea lamprey).
OC   Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Cyclostomata;
OC   Hyperoartia; Petromyzontiformes; Petromyzontidae; Petromyzon.
OX   NCBI_TaxID=7757;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [MRNA].
RX   PubMed=10788466; DOI=10.1074/jbc.275.18.13517;
RA   Qiu Y., Maillett D.H., Knapp J., Olson J.S., Riggs A.F.;
RT   "Lamprey hemoglobin. Structural basis of the Bohr effect.";
RL   J. Biol. Chem. 275:13517-13528(2000).
CC   -!- SIMILARITY: Belongs to the globin family. {ECO:0000255|PROSITE-
CC       ProRule:PRU00238}.
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DR   EMBL; AF248645; AAF67186.1; -; mRNA.
DR   AlphaFoldDB; Q9I9I3; -.
DR   SMR; Q9I9I3; -.
DR   Ensembl; ENSPMAT00000008041; ENSPMAP00000008005; ENSPMAG00000007266.
DR   Ensembl; ENSPMAT00000008048; ENSPMAP00000008012; ENSPMAG00000007276.
DR   GeneTree; ENSGT00940000155004; -.
DR   HOGENOM; CLU_003827_10_1_1; -.
DR   OMA; METIDHA; -.
DR   TreeFam; TF332967; -.
DR   Proteomes; UP000245300; Unplaced.
DR   GO; GO:0020037; F:heme binding; IEA:InterPro.
DR   GO; GO:0005506; F:iron ion binding; IEA:InterPro.
DR   GO; GO:0019825; F:oxygen binding; IEA:InterPro.
DR   GO; GO:0005344; F:oxygen carrier activity; IEA:UniProtKB-KW.
DR   Gene3D; 1.10.490.10; -; 1.
DR   InterPro; IPR000971; Globin.
DR   InterPro; IPR009050; Globin-like_sf.
DR   InterPro; IPR012292; Globin/Proto.
DR   InterPro; IPR013314; Globin_lamprey/hagfish.
DR   PANTHER; PTHR46783; PTHR46783; 1.
DR   Pfam; PF00042; Globin; 1.
DR   PRINTS; PR01906; FISHGLOBIN.
DR   SUPFAM; SSF46458; SSF46458; 1.
DR   PROSITE; PS01033; GLOBIN; 1.
PE   2: Evidence at transcript level;
KW   Heme; Iron; Metal-binding; Oxygen transport; Reference proteome; Transport.
FT   INIT_MET        1
FT                   /note="Removed"
FT   CHAIN           2..150
FT                   /note="Globin-2"
FT                   /id="PRO_0000052527"
FT   BINDING         74
FT                   /ligand="heme b"
FT                   /ligand_id="ChEBI:CHEBI:60344"
FT                   /ligand_part="Fe"
FT                   /ligand_part_id="ChEBI:CHEBI:18248"
FT                   /note="distal binding residue"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00238"
FT   BINDING         106
FT                   /ligand="heme b"
FT                   /ligand_id="ChEBI:CHEBI:60344"
FT                   /ligand_part="Fe"
FT                   /ligand_part_id="ChEBI:CHEBI:18248"
FT                   /note="proximal binding residue"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00238"
SQ   SEQUENCE   150 AA;  16442 MW;  294E00BD5670B29D CRC64;
     MPIVDTGSVA PLSAAEKTKI RSAWAPVYSN YETSGVDILV KFFTSTPAAQ EFFPKFKGLT
     TADQLKKSAD VRWHAERIIN AVNDAVVSMD DTEKMSMKLR DLSGKHAKSF QVDPQYFKVL
     AAVIADTVAA GDAGFEKLMS MICILLRSAY