1AO6: Human serum albumin

Crystal structure of human serum albumin. Determined by X-ray diffraction at 2.5 Å resolution. Released 27 May 1998.

Method
X-ray diffraction
Resolution
2.5 Å
Organism
Homo sapiens
Chains
2
Atoms
9,205
Mol. weight
133.14 kDa
Released
27 May 1998

Explore 1AO6 in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

1AO6 contains 74 α-helices and 0 β-strands across 2 chains. Residue ranges use author residue numbering, as in the PDB file, from PDBe. To see them in 3D, choose the Cartoon representation with Secondary structure coloring: helices, sheets and coils get different colors.

Chain A: 38 helices, 0 β-strands

ElementResiduesLengthSheet
α-helix6-3025
α-helix36-5520
α-helix66-7813
α-helix81-844
α-helix85-884
α-helix90-923
α-helix97-1048
α-helix113-1153
α-helix120-12910
α-helix131-14515
α-helix151-16818
α-helix174-20128
α-helix202-2065
α-helix208-22215
α-helix228-24619
α-helix250-26617
α-helix268-2714
α-helix283-2919
α-helix294-2996
α-helix3061
α-helix307-3115
α-helix315-3217
α-helix323-33614
α-helix343-36018
α-helix366-3694
α-helix370-3723
α-helix373-3764
α-helix378-39821
α-helix400-41415
α-helix420-43112
α-helix434-4374
α-helix445-46622
α-helix471-4799
α-helix484-4907
α-helix511-5144
α-helix518-53316
α-helix542-55817
α-helix566-58116
Chain B: 36 helices, 0 β-strands
ElementResiduesLengthSheet
α-helix6-3025
α-helix36-5520
α-helix66-7813
α-helix81-844
α-helix85-884
α-helix90-923
α-helix97-1048
α-helix120-12910
α-helix131-14313
α-helix151-16818
α-helix174-20128
α-helix202-2065
α-helix208-22215
α-helix228-24619
α-helix250-26617
α-helix267-2704
α-helix273-2753
α-helix276-2794
α-helix283-29210
α-helix293-2997
α-helix306-3116
α-helix315-33723
α-helix343-36018
α-helix366-3694
α-helix370-3723
α-helix373-41442
α-helix420-43112
α-helix433-4375
α-helix445-46622
α-helix471-4788
α-helix484-4907
α-helix504-5063
α-helix511-5155
α-helix518-53518
α-helix542-55817
α-helix566-58116

Molecules and chains

MoleculeChainsTypeLengthOrganismUniProt
Serum albuminA, Bprotein585Homo sapiensP02768 (AlphaFold model)
Sequence of entity 1 (A, B), FASTA
>1AO6_1 SERUM ALBUMIN (chains A, B)
DAHKSEVAHRFKDLGEENFKALVLIAFAQYLQQCPFEDHVKLVNEVTEFAKTCVADESAE
NCDKSLHTLFGDKLCTVATLRETYGEMADCCAKQEPERNECFLQHKDDNPNLPRLVRPEV
DVMCTAFHDNEETFLKKYLYEIARRHPYFYAPELLFFAKRYKAAFTECCQAADKAACLLP
KLDELRDEGKASSAKQRLKCASLQKFGERAFKAWAVARLSQRFPKAEFAEVSKLVTDLTK
VHTECCHGDLLECADDRADLAKYICENQDSISSKLKECCEKPLLEKSHCIAEVENDEMPA
DLPSLAADFVESKDVCKNYAEAKDVFLGMFLYEYARRHPDYSVVLLLRLAKTYETTLEKC
CAAADPHECYAKVFDEFKPLVEEPQNLIKQNCELFEQLGEYKFQNALLVRYTKKVPQVST
PTLVEVSRNLGKVGSKCCKHPEAKRMPCAEDYLSVVLNQLCVLHEKTPVSDRVTKCCTES
LVNRRPCFSALEVDETYVPKEFNAETFTFHADICTLSEKERQIKKQTALVELVKHKPKAT
KEQLKAVMDDFAAFVEKCCKADDKETCFAEEGKKLVAASQAALGL

Primary citation

Crystal structure of human serum albumin at 2.5 A resolution. Sugio, S., Kashima, A., Mochizuki, S. et al. Protein Eng (1999) 12:439-446. DOI 10.1093/protein/12.6.439 · PubMed

Other PDB entries of the same protein (UniProt P02768 (AlphaFold model), which also has an AlphaFold model), best resolution first:

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