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Protein

Hemoglobin subunit alpha-2

Gene
N/A
Organism
Tachyglossus aculeatus aculeatus (Australian echidna)
Status
Reviewed-Annotation score: Annotation score: 3 out of 5-Experimental evidence at protein leveli

Functioni

Involved in oxygen transport from the lung to the various peripheral tissues.

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Metal bindingi58 – 581Iron (heme distal ligand)
Metal bindingi87 – 871Iron (heme proximal ligand)

GO - Molecular functioni

Complete GO annotation...

Keywords - Biological processi

Oxygen transport, Transport

Keywords - Ligandi

Heme, Iron, Metal-binding

Names & Taxonomyi

Protein namesi
Recommended name:
Hemoglobin subunit alpha-2
Alternative name(s):
Alpha-2-globin
Hemoglobin alpha-2 chain
OrganismiTachyglossus aculeatus aculeatus (Australian echidna)
Taxonomic identifieri49271 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaMonotremataTachyglossidaeTachyglossus

Subcellular locationi

GO - Cellular componenti

Complete GO annotation...

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 141141Hemoglobin subunit alpha-2PRO_0000052774Add
BLAST

Proteomic databases

PRIDEiP01978.

Expressioni

Tissue specificityi

Red blood cells.

Interactioni

Subunit structurei

Heterotetramer of two alpha chains and two beta chains.

Structurei

3D structure databases

ProteinModelPortaliP01978.
SMRiP01978. Positions 1-141.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Belongs to the globin family.PROSITE-ProRule annotation

Phylogenomic databases

HOVERGENiHBG009709.

Family and domain databases

CDDicd08927. Hb-alpha_like. 1 hit.
Gene3Di1.10.490.10. 1 hit.
InterProiIPR000971. Globin.
IPR009050. Globin-like.
IPR012292. Globin/Proto.
IPR002338. Haemoglobin_a-typ.
IPR002339. Haemoglobin_pi.
[Graphical view]
PfamiPF00042. Globin. 1 hit.
[Graphical view]
PRINTSiPR00612. ALPHAHAEM.
PR00815. PIHAEM.
SUPFAMiSSF46458. SSF46458. 1 hit.
PROSITEiPS01033. GLOBIN. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

P01978-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
VLTDAERKEV TSLWGKASGH AEDYGAEALE RLFLSFPTTK TYFSHMDLSK
60 70 80 90 100
GSAHVRAHGK KVADALTTAV GHFNDMDGAL SDLSDLHAHK LRVDPVNFKL
110 120 130 140
LAHCFLVVLA RHHPEEFTPS AHAAMDKFLS RVATVLTSKY R
Length:141
Mass (Da):15,585
Last modified:July 21, 1986 - v1
Checksum:iB8923A938F67F867
GO

Sequence databases

PIRiA02301. HATG2.

Cross-referencesi

Sequence databases

PIRiA02301. HATG2.

3D structure databases

ProteinModelPortaliP01978.
SMRiP01978. Positions 1-141.
ModBaseiSearch...
MobiDBiSearch...

Proteomic databases

PRIDEiP01978.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Phylogenomic databases

HOVERGENiHBG009709.

Family and domain databases

CDDicd08927. Hb-alpha_like. 1 hit.
Gene3Di1.10.490.10. 1 hit.
InterProiIPR000971. Globin.
IPR009050. Globin-like.
IPR012292. Globin/Proto.
IPR002338. Haemoglobin_a-typ.
IPR002339. Haemoglobin_pi.
[Graphical view]
PfamiPF00042. Globin. 1 hit.
[Graphical view]
PRINTSiPR00612. ALPHAHAEM.
PR00815. PIHAEM.
SUPFAMiSSF46458. SSF46458. 1 hit.
PROSITEiPS01033. GLOBIN. 1 hit.
[Graphical view]
ProtoNetiSearch...

Entry informationi

Entry nameiHBA2_TACAC
AccessioniPrimary (citable) accession number: P01978
Entry historyi
Integrated into UniProtKB/Swiss-Prot: July 21, 1986
Last sequence update: July 21, 1986
Last modified: September 7, 2016
This is version 76 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program

Miscellaneousi

Miscellaneous

This alpha chain is the A variant from the minor hemoglobin II. Its sequence differs from those of the alpha-1 chain variants A and B at nine positions each.

Keywords - Technical termi

Direct protein sequencing

Documents

  1. SIMILARITY comments
    Index of protein domains and families

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into one UniRef entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.