Structure of PDB 6txa Chain B

Receptor sequence

>6txaB (length=479) Species: 9606 (Homo sapiens) [Search protein sequence]

TMKVINDPIHGHIELHPLLVRIINTPQFQRLRYIKQLGGGYYVFPGASHN
RFEHSLGVGYLAGCLVHALGEKQPELQISERDVLCVQIAGLCHDLGHGPF
SHMFDGRFIPLARPEVKWTHEQGSVMMFEHLINSNGIKPVMEQYGLIPEE
DICFIKEQIVGPLLWPYKGRPENKSFLYEIVSNKRNGIDVDKWDYFARDC
HHLGIQNNFDYKRFIKFARVCEVDNELRICARDKEVGNLYDMFHTRNSLH
RRAYQHKVGNIIDTMITDAFLKADDYIEITGAGGKKYRISTAIDDMEAYT
KLTDNIFLEILYSTDPKLKDAREILKQIEYRNLFKYVGETQPTGQIKIKR
EDYESLPKEVASAKPKVLLDVKLKAEDFIVDVINMDYGMQEKNPIDHVSF
YCKTAPNRAIRITKNQVSQLLPEKFAEQLIRVYCKKVDRKSLYAARQYFV
QWCADRNFTKPQDGDVIAPLITPQKKEWN

3D structure

PDB

6txa Crystal structures of SAMHD1 inhibitor complexes reveal the mechanism of water-mediated dNTP hydrolysis.

Chain

Resolution

2.853 Å

3D
structure

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Enzymatic activity

Enzyme Commision number

3.1.5.-

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)
BS01	CZF	B	Y155 V156 V378 R451	Y42 V43 V258 R331
BS02	FE	B	H167 H206 D207 D311	H54 H93 D94 D191
BS03	MG	B	D207 H233	D94 H120
BS04	XG4	B	Q149 L150 R164 D207 H215 H233 D311 K312 Y315 D319 R366 Y374 Q375	Q36 L37 R51 D94 H102 H120 D191 K192 Y195 D199 R246 Y254 Q255
BS05	CZF	B	K116 V117 I118 N137 R145	K3 V4 I5 N24 R32
BS06	XG4	B	R333 R352 K354 N358 K523	R213 R232 K234 N238 K403
BS07	XG4	B	V156 F157 R372 H376 K377	V43 F44 R252 H256 K257

External links

PDB	RCSB:6txa, PDBe:6txa, PDBj:6txa
PDBsum	6txa
PubMed	32576829
UniProt	Q9Y3Z3\|SAMH1_HUMAN Deoxynucleoside triphosphate triphosphohydrolase SAMHD1 (Gene Name=SAMHD1)

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