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HBA_LYCRE
ID   HBA_LYCRE               Reviewed;         142 AA.
AC   P86882;
DT   05-SEP-2012, integrated into UniProtKB/Swiss-Prot.
DT   05-SEP-2012, sequence version 1.
DT   03-AUG-2022, entry version 23.
DE   RecName: Full=Hemoglobin subunit alpha {ECO:0000303|PubMed:21491556};
DE   AltName: Full=Alpha-globin {ECO:0000250|UniProtKB:P56250};
DE   AltName: Full=Hemoglobin alpha chain {ECO:0000250|UniProtKB:P56250};
GN   Name=hba {ECO:0000250|UniProtKB:P56250};
OS   Lycodes reticulatus (Arctic eelpout).
OC   Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi;
OC   Actinopterygii; Neopterygii; Teleostei; Neoteleostei; Acanthomorphata;
OC   Eupercaria; Perciformes; Cottioidei; Zoarcales; Zoarcidae; Lycodinae;
OC   Lycodes.
OX   NCBI_TaxID=215418;
RN   [1] {ECO:0000305}
RP   PROTEIN SEQUENCE, FUNCTION, SUBUNIT, MASS SPECTROMETRY, AND ACETYLATION AT
RP   SER-1.
RC   TISSUE=Blood {ECO:0000269|PubMed:21491556};
RX   PubMed=21491556; DOI=10.1002/iub.450;
RA   Riccio A., Mangiapia G., Giordano D., Flagiello A., Tedesco R., Bruno S.,
RA   Vergara A., Mazzarella L., di Prisco G., Pucci P., Paduano L., Verde C.;
RT   "Polymerization of hemoglobins in Arctic fish: Lycodes reticulatus and
RT   Gadus morhua.";
RL   IUBMB Life 63:346-354(2011).
CC   -!- FUNCTION: Involved in oxygen transport from gills to the various
CC       peripheral tissues. {ECO:0000250|UniProtKB:P56250,
CC       ECO:0000269|PubMed:21491556}.
CC   -!- SUBUNIT: Heterotetramer of two alpha chains and two beta chains.
CC       {ECO:0000303|PubMed:21491556}.
CC   -!- TISSUE SPECIFICITY: Red blood cells. {ECO:0000305}.
CC   -!- MASS SPECTROMETRY: Mass=15663.3; Mass_error=0.3; Method=MALDI;
CC       Evidence={ECO:0000269|PubMed:21491556};
CC   -!- MISCELLANEOUS: This fish has just a single hemoglobin. It displays a
CC       weak Bohr effect that is not effector-enhanced and shows a propensity
CC       to form disulfide-linked polymers in vitro.
CC       {ECO:0000269|PubMed:21491556}.
CC   -!- SIMILARITY: Belongs to the globin family. {ECO:0000255|PROSITE-
CC       ProRule:PRU00238}.
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DR   AlphaFoldDB; P86882; -.
DR   SMR; P86882; -.
DR   iPTMnet; P86882; -.
DR   GO; GO:0005833; C:hemoglobin complex; ISS:UniProtKB.
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; ISS:UniProtKB.
DR   GO; GO:0015671; P:oxygen transport; ISS:UniProtKB.
DR   CDD; cd08927; Hb-alpha-like; 1.
DR   Gene3D; 1.10.490.10; -; 1.
DR   InterPro; IPR000971; Globin.
DR   InterPro; IPR009050; Globin-like_sf.
DR   InterPro; IPR012292; Globin/Proto.
DR   InterPro; IPR002338; Hemoglobin_a-typ.
DR   InterPro; IPR002339; Hemoglobin_pi.
DR   Pfam; PF00042; Globin; 1.
DR   PRINTS; PR00612; ALPHAHAEM.
DR   PRINTS; PR00815; PIHAEM.
DR   SUPFAM; SSF46458; SSF46458; 1.
DR   PROSITE; PS01033; GLOBIN; 1.
PE   1: Evidence at protein level;
KW   Acetylation; Direct protein sequencing; Heme; Iron; Metal-binding;
KW   Oxygen transport; Transport.
FT   CHAIN           1..142
FT                   /note="Hemoglobin subunit alpha"
FT                   /id="PRO_0000419015"
FT   BINDING         59
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:0000250|UniProtKB:P56250,
FT                   ECO:0000255|PROSITE-ProRule:PRU00238"
FT   BINDING         88
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:0000250|UniProtKB:P56250,
FT                   ECO:0000255|PROSITE-ProRule:PRU00238"
FT   MOD_RES         1
FT                   /note="N-acetylserine"
FT                   /evidence="ECO:0000269|PubMed:21491556"
SQ   SEQUENCE   142 AA;  15622 MW;  4F312EDF210B804F CRC64;
     SLSDKDKAAV KAIWNKISKS ADVIGADAMG RMLVVYPQTK TYFSHWSDLS PNSAPVKNHG
     KTVMTGVALA VSNIDDMTTG LKALSEKHAF QLRVDPSNFK ILSHCILVVI AMMYPKDFTP
     EAHVSMDKFF CGLSLALAEK YR
 
 
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