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Aliases for HBD Gene

Aliases for HBD Gene

  • Hemoglobin Subunit Delta 2 3 5
  • Hemoglobin Delta Chain 4
  • Hemoglobin, Delta 2
  • Delta-Globin 4

External Ids for HBD Gene

Previous GeneCards Identifiers for HBD Gene

  • GC11M005996
  • GC11M005549
  • GC11M005206
  • GC11M005213
  • GC11M005217
  • GC11M005204
  • GC11M005210
  • GC11M005251
  • GC11M004913
  • GC11M005253

Summaries for HBD Gene

Entrez Gene Summary for HBD Gene

  • The delta (HBD) and beta (HBB) genes are normally expressed in the adult: two alpha chains plus two beta chains constitute HbA, which in normal adult life comprises about 97% of the total hemoglobin. Two alpha chains plus two delta chains constitute HbA-2, which with HbF comprises the remaining 3% of adult hemoglobin. Five beta-like globin genes are found within a 45 kb cluster on chromosome 11 in the following order: 5'-epsilon--Ggamma--Agamma--delta--beta-3'. Mutations in the delta-globin gene are associated with beta-thalassemia. [provided by RefSeq, Jul 2008]

GeneCards Summary for HBD Gene

HBD (Hemoglobin Subunit Delta) is a Protein Coding gene. Diseases associated with HBD include Hemoglobin Lepore-Beta-Thalassemia Syndrome and Fetal Hemoglobin Quantitative Trait Locus 1. Among its related pathways are Platelet activation, signaling and aggregation and Factors involved in megakaryocyte development and platelet production. GO annotations related to this gene include iron ion binding and oxygen binding. An important paralog of this gene is HBA2.

UniProtKB/Swiss-Prot for HBD Gene

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

Gene Wiki entry for HBD Gene

No data available for Tocris Summary , PharmGKB "VIP" Summary , fRNAdb sequence ontologies and piRNA Summary for HBD Gene

Genomics for HBD Gene

Regulatory Elements for HBD Gene

Enhancers for HBD Gene
GeneHancer Identifier Score Enhancer Sources TSS distance (kb) Number of Genes Away Size (kb) Transcription Factor Binding Sites within enhancer Other Gene Targets for Enhancer

Enhancers around HBD on UCSC Golden Path with GeneCards custom track

Genomic Location for HBD Gene

5,232,678 bp from pter
5,235,370 bp from pter
2,693 bases
Minus strand

Genomic View for HBD Gene

Genes around HBD on UCSC Golden Path with GeneCards custom track

Cytogenetic band:
HBD Gene in genomic location: bands according to Ensembl, locations according to GeneLoc (and/or Entrez Gene and/or Ensembl if different)
Genomic Location for HBD Gene
GeneLoc Logo Genomic Neighborhood Exon StructureGene Density

RefSeq DNA sequence for HBD Gene

Proteins for HBD Gene

  • Protein details for HBD Gene (UniProtKB/Swiss-Prot)

    Protein Symbol:
    Recommended name:
    Hemoglobin subunit delta
    Protein Accession:
    Secondary Accessions:
    • Q3Y5H3
    • Q8WXT7

    Protein attributes for HBD Gene

    147 amino acids
    Molecular mass:
    16055 Da
    Quaternary structure:
    • Heterotetramer of two alpha chains and two delta chains in adult hemoglobin A2 (HbA2). HbA2 represents less than 3.5% of adult hemoglobin.

    Three dimensional structures from OCA and Proteopedia for HBD Gene

neXtProt entry for HBD Gene

Proteomics data for HBD Gene at MOPED

Post-translational modifications for HBD Gene

  • Modification sites at PhosphoSitePlus
  • Modification sites at neXtProt

Other Protein References for HBD Gene

No data available for DME Specific Peptides for HBD Gene

Domains & Families for HBD Gene

Gene Families for HBD Gene

Protein Domains for HBD Gene

Graphical View of Domain Structure for InterPro Entry



  • Belongs to the globin family.
  • Belongs to the globin family.
genes like me logo Genes that share domains with HBD: view

Function for HBD Gene

Molecular function for HBD Gene

GENATLAS Biochemistry:
UniProtKB/Swiss-Prot Function:
Involved in oxygen transport from the lung to the various peripheral tissues.

Gene Ontology (GO) - Molecular Function for HBD Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0005344 oxygen transporter activity IEA --
GO:0005515 protein binding IPI 25416956
GO:0019825 oxygen binding IEA --
genes like me logo Genes that share ontologies with HBD: view
genes like me logo Genes that share phenotypes with HBD: view

Human Phenotype Ontology for HBD Gene

HPO Id HPO Name Alternative Ids Definition Synonyms

Animal Model Products

No data available for Enzyme Numbers (IUBMB) , Animal Models , miRNA , Transcription Factor Targets and HOMER Transcription for HBD Gene

Localization for HBD Gene

Subcellular locations from

Jensen Localization Image for HBD Gene COMPARTMENTS Subcellular localization image for HBD gene
Compartment Confidence
cytosol 5
extracellular 5
nucleus 2
mitochondrion 1

Gene Ontology (GO) - Cellular Components for HBD Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0005829 cytosol TAS --
GO:0005833 hemoglobin complex IEA --
GO:0016021 integral component of membrane IEA --
genes like me logo Genes that share ontologies with HBD: view

No data available for Subcellular locations from UniProtKB/Swiss-Prot for HBD Gene

Pathways & Interactions for HBD Gene

genes like me logo Genes that share pathways with HBD: view

Pathways by source for HBD Gene

Gene Ontology (GO) - Biological Process for HBD Gene


No data available for SIGNOR curated interactions for HBD Gene

Drugs & Compounds for HBD Gene

(1) Drugs for HBD Gene - From: HMDB

Name Status Disease Links Group Role Mechanism of Action Clinical Trials
heme Pharma Agonist 0

(2) Additional Compounds for HBD Gene - From: HMDB and Novoseek

Name Synonyms Role CAS Number PubChem IDs PubMed IDs
  • Dioxygen
  • Molecular oxygen
  • O2
  • Oxygen
  • Oxygen molecule
genes like me logo Genes that share compounds with HBD: view

Transcripts for HBD Gene

mRNA/cDNA for HBD Gene

(1) REFSEQ mRNAs :
(4) Additional mRNA sequences :
(6) Selected AceView cDNA sequences:
(4) Ensembl transcripts including schematic representations, and UCSC links where relevant :

Unigene Clusters for HBD Gene

Hemoglobin, delta:
Representative Sequences:

Alternative Splicing Database (ASD) splice patterns (SP) for HBD Gene

No ASD Table

Relevant External Links for HBD Gene

GeneLoc Exon Structure for
ECgene alternative splicing isoforms for

Expression for HBD Gene

mRNA expression in normal human tissues for HBD Gene

mRNA differential expression in normal tissues according to GTEx for HBD Gene

This gene is overexpressed in Whole Blood (x49.8).

Protein differential expression in normal tissues from HIPED for HBD Gene

This gene is overexpressed in Lavage (17.1).

Integrated Proteomics: protein expression in normal tissues and cell lines from ProteomicsDB, PaxDb, and MOPED for HBD Gene

SOURCE GeneReport for Unigene cluster for HBD Gene Hs.699280

mRNA Expression by UniProt/SwissProt for HBD Gene

Tissue specificity: Red blood cells.
genes like me logo Genes that share expression patterns with HBD: view

Protein tissue co-expression partners for HBD Gene

- Elite partner

Primer Products

Orthologs for HBD Gene

This gene was present in the common ancestor of chordates.

Orthologs for HBD Gene

Organism Taxonomy Gene Similarity Type Details
(Bos Taurus)
Mammalia HBB 35
  • 86.11 (n)
  • 83.33 (a)
-- 36
  • 77 (a)
-- 36
  • 80 (a)
-- 36
  • 72 (a)
HBB 36
  • 83 (a)
(Pan troglodytes)
Mammalia HBD 35
  • 99.32 (n)
  • 99.32 (a)
HBD 36
  • 99 (a)
(Canis familiaris)
Mammalia -- 36
  • 80 (a)
-- 36
  • 82 (a)
(Monodelphis domestica)
Mammalia -- 36
  • 71 (a)
(Mus musculus)
Mammalia Hbb-bh2 36
  • 54 (a)
Hbb-bs 36
  • 78 (a)
Hbb-bt 36
  • 78 (a)
(Ornithorhynchus anatinus)
Mammalia -- 36
  • 75 (a)
(Gallus gallus)
Aves HBB 36
  • 69 (a)
HBE 36
  • 64 (a)
HBE1 36
  • 66 (a)
HBG1 36
  • 64 (a)
(Anolis carolinensis)
Reptilia -- 36
  • 59 (a)
(Danio rerio)
Actinopterygii hbaa1 36
  • 40 (a)
hbaa1 36
  • 40 (a)
hbae1 36
  • 38 (a)
hbae1 36
  • 35 (a)
hbae3 36
  • 38 (a)
hbz 36
  • 40 (a)
si:ch211-5k11.2 36
  • 38 (a)
si:ch211-5k11.6 36
  • 41 (a)
Species with no ortholog for HBD:
  • A. gosspyii yeast (Ashbya gossypii)
  • Actinobacteria (Mycobacterium tuberculosis)
  • African clawed frog (Xenopus laevis)
  • African malaria mosquito (Anopheles gambiae)
  • Alicante grape (Vitis vinifera)
  • alpha proteobacteria (Wolbachia pipientis)
  • amoeba (Dictyostelium discoideum)
  • Archea (Pyrococcus horikoshii)
  • baker's yeast (Saccharomyces cerevisiae)
  • barley (Hordeum vulgare)
  • beta proteobacteria (Neisseria meningitidis)
  • bread mold (Neurospora crassa)
  • Chromalveolata (Phytophthora infestans)
  • common water flea (Daphnia pulex)
  • corn (Zea mays)
  • E. coli (Escherichia coli)
  • filamentous fungi (Aspergillus nidulans)
  • Firmicute bacteria (Streptococcus pneumoniae)
  • fission yeast (Schizosaccharomyces pombe)
  • fruit fly (Drosophila melanogaster)
  • green algae (Chlamydomonas reinhardtii)
  • honey bee (Apis mellifera)
  • K. lactis yeast (Kluyveromyces lactis)
  • loblloly pine (Pinus taeda)
  • malaria parasite (Plasmodium falciparum)
  • medicago trunc (Medicago Truncatula)
  • moss (Physcomitrella patens)
  • orangutan (Pongo pygmaeus)
  • pig (Sus scrofa)
  • rainbow trout (Oncorhynchus mykiss)
  • rat (Rattus norvegicus)
  • rice (Oryza sativa)
  • rice blast fungus (Magnaporthe grisea)
  • schistosome parasite (Schistosoma mansoni)
  • sea anemone (Nematostella vectensis)
  • sea squirt (Ciona intestinalis)
  • sea squirt (Ciona savignyi)
  • sea urchin (Strongylocentrotus purpuratus)
  • sorghum (Sorghum bicolor)
  • soybean (Glycine max)
  • stem rust fungus (Puccinia graminis)
  • sugarcane (Saccharum officinarum)
  • thale cress (Arabidopsis thaliana)
  • tomato (Lycopersicon esculentum)
  • toxoplasmosis (Toxoplasma gondii)
  • Trichoplax (Trichoplax adhaerens)
  • tropical clawed frog (Silurana tropicalis)
  • wheat (Triticum aestivum)
  • worm (Caenorhabditis elegans)

Evolution for HBD Gene

Gene Tree for HBD (if available)
Gene Tree for HBD (if available)

Paralogs for HBD Gene

Paralogs for HBD Gene

genes like me logo Genes that share paralogs with HBD: view

Variants for HBD Gene

Sequence variations from dbSNP and Humsavar for HBD Gene

SNP ID Clin Chr 11 pos Sequence Context AA Info Type
rs34991152 - 5,234,429(-) CATGG(C/T)GCATC reference, missense
rs35433207 - 5,234,426(-) GGTGC(A/G/T)TCTGA reference, missense
rs34313675 - 5,234,395(-) GTCAA(A/T)GCCCT reference, missense
rs34012192 - 5,234,385(-) TGTGG(C/G)GCAAA reference, missense
rs34093840 - 5,234,372(-) GAACG(A/C/T)GGATG reference, missense

Structural Variations from Database of Genomic Variants (DGV) for HBD Gene

Variant ID Type Subtype PubMed ID
nsv896929 CNV Loss 21882294

Variation tolerance for HBD Gene

Residual Variation Intolerance Score: 72.5% of all genes are more intolerant (likely to be disease-causing)
Gene Damage Index Score: 0.69; 14.75% of all genes are more intolerant (likely to be disease-causing)

Relevant External Links for HBD Gene

Human Gene Mutation Database (HGMD)

No data available for Polymorphic Variants from UniProtKB/Swiss-Prot for HBD Gene

Disorders for HBD Gene

MalaCards: The human disease database

(26) MalaCards diseases for HBD Gene - From: GeneTests, Orphanet, DISEASES, Novoseek, and GeneCards

Disorder Aliases PubMed IDs
hemoglobin lepore-beta-thalassemia syndrome
  • hblepore-beta-thalassemia syndrome
fetal hemoglobin quantitative trait locus 1
  • hereditary persistence of fetal hemoglobin
  • sickle-cell thalassemia with crisis
  • hemoglobinopathies
- elite association - COSMIC cancer census association via MalaCards
Search HBD in MalaCards View complete list of genes associated with diseases

Genatlas disease for HBD Gene


Relevant External Links for HBD

Genetic Association Database (GAD)
genes like me logo Genes that share disorders with HBD: view

No data available for UniProtKB/Swiss-Prot for HBD Gene

Publications for HBD Gene

  1. Two new delta-globin mutations: Hb A2-Ninive [delta133(H11)Val-Ala] and a delta(+)-thalassemia mutation [-31 (A-->G)] in the TATA box of the delta-globin gene. (PMID: 15921167) Frischknecht H. … Dutly F. (Hemoglobin 2005) 3 4 23 67
  2. HbA2-Partinico or delta(A2)Pro-->Thr, a new genetic variation in the delta-globin gene in cis to the beta(+) thal IVS-I-110 G>A, and the heterogeneity of delta-globin alleles in double heterozygotes for beta- and delta-globin gene defects. (PMID: 19609526) Lacerra G. … Carestia C. (Ann. Hematol. 2010) 3 23
  3. Molecular evidences of single mutational events followed by recurrent crossing-overs in the common delta-globin alleles in the Mediterranean area. (PMID: 18221842) Lacerra G. … Carestia C. (Gene 2008) 3 23
  4. Identification of an alternate delta-globin mRNA in adult human erythroid cells. (PMID: 15234005) Goh S.H. … Miller J.L. (Genomics 2004) 3 23
  5. Common 5' beta-globin RFLP haplotypes harbour a surprising level of ancestral sequence mosaicism. (PMID: 12736816) Webster M.T. … Harding R.M. (Hum. Genet. 2003) 3 23

Products for HBD Gene

Sources for HBD Gene