IthaID: 639

Names and Sequences

Functionality: Globin gene causative mutation Pathogenicity: Pathogenic / Likely Pathogenic
Common Name: CD 85 GAC>AAC [Asp>Asn] HGVS Name: HBA1:c.256G>A
Hb Name: Hb G-Norfolk Protein Info: α1 85(F6) Asp>Asn

Context nucleotide sequence:

Protein sequence:

Also known as:


Hemoglobinopathy Group: Structural Haemoglobinopathy
Hemoglobinopathy Subgroup: α-chain variant
Allele Phenotype:N/A
Stability: N/A
Oxygen Affinity: Increased Oxygen Affinity
Associated Phenotypes: N/A


Chromosome: 16
Locus: NG_000006.1
Locus Location: 37952
Size: 1 bp
Located at: α1
Specific Location: Exon 2

Other details

Type of Mutation: Point-Mutation(Substitution)
Effect on Gene/Protein Function: Missense codons (Protein Structure)
Ethnic Origin: English
Molecular mechanism: N/A
Inheritance: Recessive
DNA Sequence Determined: Yes

In silico pathogenicity prediction

Publications / Origin

  1. Lorkin PA, Huntsman RG, Ager JA, Lehmann H, Vella F, Darbre PD, Haemoglobin G Norfolk: alpha 85 (F6) Asp leads to Asn., Biochim. Biophys. Acta , 379(1), 22-7, 1975
  2. Cohen-Solal M, Manesse B, Thillet J, Rosa J, Haemoglobin G Norfolk alpha 85 (F6) Asp leads to Asn. Structural characterization by sequenator analysis and functional properties of a new variant with high oxygen affinity., FEBS Lett. , 50(2), 163-7, 1975
  3. Khalil MS, Timbs A, Henderson S, Schuh A, Hussein MR, Old J, Haemoglobin (Hb) G-Philadelphia, Hb Stanleyville-II, Hb G-Norfolk, Hb Matsue-Oki and Hb Mizushi can form a panel of α-chain variants that overlap in their phenotype: the novel use of StyI to screen for Hb G-Philadelphia., Int J Lab Hematol, 33(3), 318-25, 2011
  4. Henderson SJ, Timbs AT, McCarthy J, Gallienne AE, Proven M, Rugless MJ, Lopez H, Eglinton J, Dziedzic D, Beardsall M, Khalil MS, Old JM, Ten Years of Routine α- and β-Globin Gene Sequencing in UK Hemoglobinopathy Referrals Reveals 60 Novel Mutations., Hemoglobin , 40(2), 75-84, 2016
Created on 2010-06-16 16:13:16, Last reviewed on 2021-04-07 11:59:38 (Show full history)

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