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6I79

SEPIAPTERIN REDUCTASE IN COMPLEX WITH COMPOUND 4

Functional Information from GO Data
ChainGOidnamespacecontents
A0004757molecular_functionsepiapterin reductase (NADP+) activity
A0005737cellular_componentcytoplasm
A0005739cellular_componentmitochondrion
A0005829cellular_componentcytosol
A0006729biological_processtetrahydrobiopterin biosynthetic process
A0006809biological_processnitric oxide biosynthetic process
A0008106molecular_functionalcohol dehydrogenase (NADP+) activity
A0016491molecular_functionoxidoreductase activity
A0050661molecular_functionNADP binding
A0070062cellular_componentextracellular exosome
B0004757molecular_functionsepiapterin reductase (NADP+) activity
B0005737cellular_componentcytoplasm
B0005739cellular_componentmitochondrion
B0005829cellular_componentcytosol
B0006729biological_processtetrahydrobiopterin biosynthetic process
B0006809biological_processnitric oxide biosynthetic process
B0008106molecular_functionalcohol dehydrogenase (NADP+) activity
B0016491molecular_functionoxidoreductase activity
B0050661molecular_functionNADP binding
B0070062cellular_componentextracellular exosome
Functional Information from PDB Data
site_idAC1
Number of Residues33
Detailsbinding site for residue NAP A 301
ChainResidue
AGLY14
AASP69
ALEU70
AASN100
AALA101
AGLY102
ALEU126
AILE155
ASER156
ATYR170
ALYS174
ASER16
APRO198
AGLY199
APRO200
ALEU201
ATHR203
AMET205
AH5E302
AHOH403
AHOH409
AHOH452
AARG17
AHOH465
AHOH478
AHOH480
AHOH481
AGLY18
APHE19
AALA41
AARG42
AASN43
AALA68

site_idAC2
Number of Residues9
Detailsbinding site for residue H5E A 302
ChainResidue
ALEU104
ASER157
ACYS159
ATRP167
ATYR170
AMET205
AGLN206
ANAP301
AHOH494

site_idAC3
Number of Residues33
Detailsbinding site for residue NAP B 301
ChainResidue
BGLY14
BSER16
BARG17
BGLY18
BPHE19
BALA41
BARG42
BASN43
BALA68
BASP69
BLEU70
BASN100
BALA101
BGLY102
BLEU126
BILE155
BSER156
BTYR170
BLYS174
BPRO198
BGLY199
BPRO200
BLEU201
BTHR203
BMET205
BGLN206
BH5E302
BHOH405
BHOH437
BHOH441
BHOH444
BHOH451
BHOH473

site_idAC4
Number of Residues10
Detailsbinding site for residue H5E B 302
ChainResidue
BLEU104
BSER157
BCYS159
BTRP167
BTYR170
BMET205
BGLN206
BMET218
BNAP301
BHOH479

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues26
DetailsBinding site: {"evidences":[{"source":"Reference","evidenceCode":"ECO:0000269","citation":{"citationType":"submission","publicationDate":"FEB-2009","submissionDatabase":"PDB data bank","title":"Crystal structure of human sepiapterin reductase.","authoringGroup":["Structural genomics consortium (SGC)"]}}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues10
DetailsBinding site: {"evidences":[{"evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues2
DetailsModified residue: {"description":"N-acetylmethionine","evidences":[{"source":"UniProtKB","id":"P18297","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues2
DetailsModified residue: {"description":"Phosphoserine","evidences":[{"source":"UniProtKB","id":"P18297","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI5
Number of Residues2
DetailsModified residue: {"description":"Phosphoserine","evidences":[{"source":"PubMed","id":"23186163","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI6
Number of Residues2
DetailsModified residue: {"description":"Phosphoserine; by CaMK2; in vitro","evidences":[{"source":"PubMed","id":"11825621","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

248636

PDB entries from 2026-02-04

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