HB1 cDNA ORF clone, Arabidopsis thaliana(thale cress)

Sequence and analysis of chromosome 2 of the plant Arabidopsis thaliana.
Lin X, Kaul S, Rounsley S, Shea TP, Benito MI, Town CD, Fujii CY, Mason T, Bowman CL, Barnstead M, Feldblyum TV, Buell CR, Ketchum KA, Lee J, Ronning CM, Koo HL, Moffat KS, Cronin LA, Shen M, Pai G, Van Aken S, Umayam L, Tallon LJ, Gill JE, Adams MD, Carrera AJ, Creasy TH, Goodman HM, Somerville CR, Copenhaver GP, Preuss D, Nierman WC, White O, Eisen JA, Salzberg SL, Fraser CM, Venter JC
Nature402(6763)761-8(1999 Dec)

Findings provide evidence supporting the functional implications of the conformational rearrangement found for the distal histidine in AHb1, which mimics the gating role proposed for the same residue in myoglobin.
Title: Histidine E7 dynamics modulates ligand exchange between distal pocket and solvent in AHb1 from Arabidopsis thaliana.

AtHb1 overexpression led to several alterations in transcriptional and metabolic networks, resulting in improved seed yield.
Title: Seed-specific elevation of non-symbiotic hemoglobin AtHb1: beneficial effects and underlying molecular networks in Arabidopsis thaliana.

Rebinding of NO ligands was observed only from site B of AHb1, regardless of conformation.
Title: Ligand migration and binding in nonsymbiotic hemoglobins of Arabidopsis thaliana.

the nature and distribution of internal cavities in the protein matrix
Title: Structural plasticity and functional implications of internal cavities in distal mutants of type 1 non-symbiotic hemoglobin AHb1 from Arabidopsis thaliana.

Finding strongly supports the idea that AHb1 and AHb2 have distinct physiological functions.
Title: Different roles of protein dynamics and ligand migration in non-symbiotic hemoglobins AHb1 and AHb2 from Arabidopsis thaliana.