Structure of PDB 5btr Chain A

Receptor sequence

>5btrA (length=370) Species: 9606 (Homo sapiens)

DNLLFGDEIITNGSDWTPRPRIGPYTFVQQHLMIGTDPRTILKDLLPETI
PPPELDDMTLWQIVINILSEPPKRKKRKDINTIEDAVKLLQESKKIIVLT
GAGVSVSSGIPDFRSRDGIYARLAVDFPDLPDPQAMFDIEYFRKDPRPFF
KFAKEIYPGQFQPSLCHKFIALSDKEGKLLRNYTQNIDTLEQVAGIQRII
QCHGSFATASCLICKYKVDCEAVRGDIFNQVVPRCPRCPADEPLAIMKPE
IVFFGENLPEQFHRAMKYDKDEVDLLIVIGSSLKVRPVALIPSSIPHEVP
QILINREPLPHLHFDVELLGDCDVIINELCHRLGGEYAKLSSNPVKLSEI
TEQYLFLPPNRYIFHGAEVY

3D structure

• PDB: 5btr Structural basis for allosteric, substrate-dependent stimulation of SIRT1 activity by resveratrol
• Chain: A
• Resolution: 3.2 Å

Enzymatic activity

• Catalytic site (original residue number in PDB): P271 D272 F273 R274 N346 D348 H363
• Catalytic site (residue number reindexed from 1): P111 D112 F113 R114 N186 D188 H203
• Enzyme Commision number: 2.3.1.-
  2.3.1.286: protein acetyllysine N-acetyltransferase.

Interaction with ligand

Site #	Ligand	Ligand chain	Binding residues on receptor (original residue number in PDB)	Binding residues on receptor (residue number reindexed from 1)	Binding affinity
BS01	peptide	A	T209 N226 R274 H363 V412 F414 G415 E416 N417 L418 V445 R446	T49 N66 R114 H203 V252 F254 G255 E256 N257 L258 V285 R286
BS02	peptide	A	F148 D150 P180	F5 D7 P20
BS03	ZN	A	C371 C374 C395 C398	C211 C214 C235 C238
BS04	STL	A	T209 P212 D292 Q294 D298 K444	T49 P52 D132 Q134 D138 K284	BindingDB: EC50=46200nM
BS05	STL	A	L206 P211 I223 N226 E230 R446 P447	L46 P51 I63 N66 E70 R286 P287	BindingDB: EC50=46200nM
BS06	STL	A	L215 Q222 F414 G415	L55 Q62 F254 G255	BindingDB: EC50=46200nM

Gene Ontology

Molecular Function

• GO:0070403 NAD+ binding

External links

• PDB: RCSB:5btr, PDBe:5btr, PDBj:5btr
• PDBsum: 5btr
• PubMed: 26109052
• UniProt: Q96EB6|SIR1_HUMAN NAD-dependent protein deacetylase sirtuin-1 (Gene Name=SIRT1)