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2O06

Human spermidine synthase

Functional Information from GO Data
ChainGOidnamespacecontents
A0003824molecular_functioncatalytic activity
A0004766molecular_functionspermidine synthase activity
A0005515molecular_functionprotein binding
A0005829cellular_componentcytosol
A0006595biological_processpolyamine metabolic process
A0006596biological_processpolyamine biosynthetic process
A0006597biological_processspermine biosynthetic process
A0008295biological_processspermidine biosynthetic process
A0016740molecular_functiontransferase activity
A0042802molecular_functionidentical protein binding
A0042803molecular_functionprotein homodimerization activity
B0003824molecular_functioncatalytic activity
B0004766molecular_functionspermidine synthase activity
B0005515molecular_functionprotein binding
B0005829cellular_componentcytosol
B0006595biological_processpolyamine metabolic process
B0006596biological_processpolyamine biosynthetic process
B0006597biological_processspermine biosynthetic process
B0008295biological_processspermidine biosynthetic process
B0016740molecular_functiontransferase activity
B0042802molecular_functionidentical protein binding
B0042803molecular_functionprotein homodimerization activity
Functional Information from PDB Data
site_idAC1
Number of Residues1
DetailsBINDING SITE FOR RESIDUE MG B 701
ChainResidue
BGLN268

site_idAC2
Number of Residues1
DetailsBINDING SITE FOR RESIDUE MG A 702
ChainResidue
AGLN268

site_idAC3
Number of Residues4
DetailsBINDING SITE FOR RESIDUE MG A 703
ChainResidue
AHIS91
AASP168
AASP200
AGLY201

site_idAC4
Number of Residues16
DetailsBINDING SITE FOR RESIDUE MTA A 501
ChainResidue
AGLY103
AASP104
ACYS123
AGLU124
AILE125
AVAL129
AGLY154
AASP155
AGLY156
AASP173
APRO180
AALA181
AHOH931
AGLN49
ALEU65
AGLY101

site_idAC5
Number of Residues13
DetailsBINDING SITE FOR RESIDUE MTA B 501
ChainResidue
BGLN49
BGLY101
BGLY102
BGLY103
BASP104
BGLU124
BILE125
BVAL129
BASP155
BGLY156
BASP173
BPRO180
BALA181

site_idAC6
Number of Residues10
DetailsBINDING SITE FOR RESIDUE PUT A 601
ChainResidue
ATRP28
AGLN70
ATYR79
AASP173
ASER174
AASP176
ATYR241
APRO242
AHOH870
AHOH871

site_idAC7
Number of Residues9
DetailsBINDING SITE FOR RESIDUE PUT B 601
ChainResidue
BGLN70
BTYR79
BASP173
BSER174
BASP176
BTYR241
BPRO242
BILE246
BHOH787

Functional Information from PROSITE/UniProt
site_idPS01330
Number of Residues14
DetailsPABS_1 Polyamine biosynthesis (PABS) domain signature. VLIIGGGdGgvLrE
ChainResidueDetails
AVAL97-GLU110

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues470
DetailsDomain: {"description":"PABS"}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues2
DetailsActive site: {"description":"Proton acceptor","evidences":[{"evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues22
DetailsBinding site: {}
ChainResidueDetails

246704

PDB entries from 2025-12-24

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