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3BIF

6-PHOSPHOFRUCTO-2-KINASE/FRUCTOSE-2,6-BISPHOSPHATASE EMPTY 6-PF-2K ACTIVE SITE

Functional Information from GO Data
ChainGOidnamespacecontents
A0000166molecular_functionnucleotide binding
A0003824molecular_functioncatalytic activity
A0003873molecular_function6-phosphofructo-2-kinase activity
A0004331molecular_functionfructose-2,6-bisphosphate 2-phosphatase activity
A0005524molecular_functionATP binding
A0005829cellular_componentcytosol
A0006000biological_processfructose metabolic process
A0006003biological_processfructose 2,6-bisphosphate metabolic process
A0006094biological_processgluconeogenesis
A0006096biological_processglycolytic process
A0016301molecular_functionkinase activity
A0016740molecular_functiontransferase activity
A0016787molecular_functionhydrolase activity
A0043540cellular_component6-phosphofructo-2-kinase/fructose-2,6-biphosphatase complex
A0046835biological_processcarbohydrate phosphorylation
Functional Information from PDB Data
site_idS1
Number of Residues8
DetailsWALKER-A MOTIF (GXXGXGKT), PART OF THE CLASSICAL MONONUCLEOTIDE BINDING MOTIF.
ChainResidue
AGLY45
ALEU46
APRO47
AALA48
AARG49
AGLY50
ALYS51
ATHR52

site_idS2
Number of Residues5
DetailsWALKER-B MOTIF (ZZZZD, Z=HYDROPHOBIC), PART OF THE CLASSICAL MONONUCLEOTIDE BINDING MOTIF. ASP 128 SERVES AS A LIGAND TO THE MG OF MG-ATP.
ChainResidue
AALA125
AVAL126
APHE127
AASP128
AVAL124

site_idS3
Number of Residues3
DetailsCATALYTIC TRIAD FOR THE FRUCTOSE-2,6-BISPHOSPHATASE REACTION.
ChainResidue
AHIS256
AGLU325
AHIS390

Functional Information from PROSITE/UniProt
site_idPS00175
Number of Residues10
DetailsPG_MUTASE Phosphoglycerate mutase family phosphohistidine signature. LcRHGEsElN
ChainResidueDetails
ALEU253-ASN262

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues2
DetailsACT_SITE: ACT_SITE => ECO:0000255
ChainResidueDetails
AALA129
AVAL159

site_idSWS_FT_FI2
Number of Residues1
DetailsACT_SITE: Tele-phosphohistidine intermediate => ECO:0000269|PubMed:9890980
ChainResidueDetails
AGLY257

site_idSWS_FT_FI3
Number of Residues1
DetailsACT_SITE: Proton donor/acceptor => ECO:0000269|PubMed:9890980
ChainResidueDetails
AILE326

site_idSWS_FT_FI4
Number of Residues3
DetailsBINDING: BINDING => ECO:0000269|PubMed:8805587
ChainResidueDetails
ALEU46
AILE168
AGLY428

site_idSWS_FT_FI5
Number of Residues11
DetailsBINDING: BINDING => ECO:0000269|PubMed:9890980
ChainResidueDetails
AARG79
AALA392
ACYS396
AASN131
AARG137
AGLU198
AGLY269
AGLU337
AASP351
ATYR355
AGLU366

site_idSWS_FT_FI6
Number of Residues6
DetailsBINDING: BINDING => ECO:0000250|UniProtKB:Q16875
ChainResidueDetails
ALYS103
ALEU173
AILE194
AHIS256
ALEU263
ATHR306

site_idSWS_FT_FI7
Number of Residues1
DetailsBINDING: BINDING => ECO:0000250|UniProtKB:P07953
ChainResidueDetails
AALA348

site_idSWS_FT_FI8
Number of Residues1
DetailsSITE: Transition state stabilizer => ECO:0000250|UniProtKB:P00950
ChainResidueDetails
AGLN391

site_idSWS_FT_FI9
Number of Residues1
DetailsMOD_RES: Phosphoserine; by PKC => ECO:0000255
ChainResidueDetails
AGLN29

site_idSWS_FT_FI10
Number of Residues1
DetailsMOD_RES: Phosphothreonine; by PKC => ECO:0000255
ChainResidueDetails
AHIS444

Catalytic Information from CSA
site_idCSA1
Number of Residues4
DetailsAnnotated By Reference To The Literature 1qhf
ChainResidueDetails
AGLU325
AHIS390
AARG305
AHIS256

site_idCSA2
Number of Residues6
DetailsAnnotated By Reference To The Literature 1qhf
ChainResidueDetails
AGLU325
AASN262
AHIS390
AARG255
AARG305
AHIS256

site_idMCSA1
Number of Residues6
DetailsM-CSA 810
ChainResidueDetails
AARG255electrostatic stabiliser
AHIS256covalently attached, nucleofuge, nucleophile
AASN262electrostatic stabiliser
AARG305electrostatic stabiliser
AGLU325activator, proton acceptor, proton donor
AHIS390electrostatic stabiliser

237735

PDB entries from 2025-06-18

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