1AUS: Activated unliganded spinach rubisco

Activated unliganded spinach rubisco. Determined by X-ray diffraction at 2.2 Å resolution. Released 15 Oct 1995.

Method: X-ray diffraction
Resolution: 2.2 Å
Organism: Spinacia oleracea
Chains: 8
Atoms: 18,149
Mol. weight: 269.77 kDa
Ligands: MG
Released: 15 Oct 1995

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

Secondary structure: helices and β-sheets

1AUS contains 132 α-helices and 104 β-strands across 8 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.

Chains L, M, N and O: 28 helices, 20 β-strands

Element	Residues	Length	Sheet
α-helix	21-24	4
β-strand	25	1	1
α-helix	29-32	4
β-strand	36-44	9	1
α-helix	45	1
α-helix	50-60	11
α-helix	70-74	5
α-helix	77-79	3
β-strand	83-89	7	1
α-helix	90	1
β-strand	97-103	7	1
α-helix	105-107	3
α-helix	113-121	9
α-helix	124-126	3
β-strand	130-139	10	1
α-helix	142-145	4
α-helix	155-162	8
β-strand	169-173	5	2
α-helix	182-194	13
β-strand	199-201	3	2
β-strand	209	1	3
β-strand	212	1	3
α-helix	214-232	19
β-strand	237-241	5	2
α-helix	247-260	14
β-strand	264-268	5	2
α-helix	269-272	4
α-helix	274-287	14
β-strand	290-294	5	2
α-helix	298-302	5
β-strand	308-309	2	1
α-helix	311-321	11
β-strand	325-327	3	2
α-helix	339-350	12
β-strand	353-354	2	4
β-strand	357	1	5
α-helix	358-360	3
β-strand	362	1	5
β-strand	366-367	2	4
α-helix	371-373	3
β-strand	375-378	4	2
α-helix	384-386	3
α-helix	387-394	8
β-strand	399-401	3	2
α-helix	404-407	4
α-helix	413-432	20
α-helix	437-449	13
α-helix	453-461	9

Chains S, T, U and V: 5 helices, 6 β-strands

Element	Residues	Length	Sheet
α-helix	3-5	3
α-helix	19-22	4
α-helix	23-36	14
α-helix	38	1
β-strand	39-45	7	6
β-strand	52	1	7
β-strand	63	1	7
β-strand	68-70	3	6
α-helix	80-93	14
β-strand	98-105	8	6
β-strand	110-118	9	6

Molecules and chains

Molecule	Chains	Type	Length	Organism	UniProt
Ribulose bisphosphate carboxylase/oxygenase	L, M, N, O	protein	475	Spinacia oleracea	P00875 (AlphaFold model)
Ribulose bisphosphate carboxylase/oxygenase	S, T, U, V	protein	123	Spinacia oleracea	Q43832 (AlphaFold model)

Sequence of entity 1 (L, M, N, O), FASTA

>1AUS_1 RIBULOSE BISPHOSPHATE CARBOXYLASE/OXYGENASE (chains L, M, N, O)
MSPQTETKASVGFKAGVKDYKLTYYTPEYETLDTDILAAFRVSPQPGVPPEEAGAAVAAE
SSTGTWTTVWTDGLTNLDRYKGRCYHIEPVAGEENQYICYVAYPLDLFEEGSVTNMFTSI
VGNVFGFKALRALRLEDLRIPVAYVKTFQGPPHGIQVERDKLNKYGRPLLGCTIKPKLGL
SAKNYGRAVYECLRGGLDFTKDDENVNSQPFMRWRDRFLFCAEALYKAQAETGEIKGHYL
NATAGTCEDMMKRAVFARELGVPIVMHDYLTGGFTANTTLSHYCRDNGLLLHIHRAMHAV
IDRQKNHGMHFRVLAKALRLSGGDHIHSGTVVGKLEGERDITLGFVDLLRDDYTEKDRSR
GIYFTQSWVSTPGVLPVASGGIHVWHMPALTEIFGDDSVLQFGGGTLGHPWGNAPGAVAN
RVALEACVQARNEGRDLAREGNTIIREATKWSPELAAACEVWKEIKFEFPAMDTV

Sequence of entity 2 (S, T, U, V), FASTA

>1AUS_2 RIBULOSE BISPHOSPHATE CARBOXYLASE/OXYGENASE (chains S, T, U, V)
MQVWPILNLKKYETLSYLPPLTTDQLARQVDYLLNNKWVPCLEFETDHGFVYREHHNSPG
YYDGRYWTMWKLPMFGCTDPAQVLNELEECKKEYPNAFIRIIGFDSNREVQCISFIAYKP
AGY

Ligands and cofactors

ID	Name	Formula	Copies
MG	Magnesium ion	Mg	4

Water and common crystallization additives (FMT) are not listed.

Primary citation

Structure of a product complex of spinach ribulose-1,5-bisphosphate carboxylase/oxygenase. Taylor, T.C., Andersson, I. Biochemistry (1997) 36:4041-4046. DOI 10.1021/bi962818w · PubMed

Other PDB entries of the same protein (UniProt P00875 (AlphaFold model), which also has an AlphaFold model), best resolution first:

8RUC 1.6 Å, Activated spinach rubisco complexed with 2-carboxyarabinitol bisphosphate
1IR1 1.8 Å, Crystal Structure of Spinach Ribulose-1,5-Bisphosphate Carboxylase/Oxygenase (Rubisco)…
1AA1 2.2 Å, Activated spinach rubisco in complex with the product 3-phosphoglycerate
1RXO 2.2 Å, Activated spinach rubisco in complex with its substrate ribulose-1,5-bisphosphate and…
1RBO 2.3 Å, Spinach rubisco in complex with the inhibitor 2-carboxyarabinitol-1,5-diphosphate
1RCO 2.3 Å, Spinach rubisco in complex with the inhibitor D-xylulose-2,2-diol-1,5-bisphosphate
1UPM 2.3 Å, Activated spinach rubisco complexed with 2-carboxyarabinitol 2 bisphosphat and CA2+.
1UPP 2.3 Å, Spinach rubisco in complex with 2-carboxyarabinitol 2 bisphosphate and calcium.
8QJ0 2.3 Å, Room-temperature Serial Synchrotron Crystallography structure of Spinacia oleracea RuBisCO
1RCX 2.4 Å, Non-activated spinach rubisco in complex with its substrate ribulose-1,5-bisphosphate
9CQ5 2.5 Å, Mn-bound RuBisCO from spinach with CABP inhibitor

Browse structure collections

About this viewer

MolViewer shows 1AUS directly in your browser with nothing to install. Switch between cartoon, ball-and-stick, spacefill and surface views, color by chain, secondary structure or B-factor, measure distances, angles and dihedrals, and share or embed the view.