Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

ChainsDomain InfoClassFoldSuperfamilyFamilyDomainSpeciesProvenance Source (Version)
Ad1pmia_ All beta proteins Double-stranded beta-helix RmlC-like cupins Type I phosphomannose isomerase Phosphomannose isomerase (Candida albicans ) [TaxId: 5476 ], SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
ASCOP2 FamilyType I phosphomannose isomerase 8030663 4002872 SCOP2 (2022-06-29)
ASCOP2 SuperfamilyRmlC-like cupins 8043042 3001825 SCOP2 (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
APMI_typeI_Ce1pmiA3 A: beta sandwichesX: jelly-rollH: Double-stranded beta-helix (From Topology)T: Double-stranded beta-helixF: PMI_typeI_CECOD (1.6)
APMI_typeI_Ne1pmiA2 A: beta sandwichesX: jelly-rollH: Double-stranded beta-helix (From Topology)T: Double-stranded beta-helixF: PMI_typeI_NECOD (1.6)
APMI_typeI_N_1e1pmiA4 A: alpha arraysX: Phosphomannose isomerase helical insertion domain (From Topology)H: Phosphomannose isomerase helical insertion domain (From Topology)T: Phosphomannose isomerase helical insertion domainF: PMI_typeI_N_1ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

ChainDomainClassArchitectureTopologyHomologyProvenance Source (Version)
A2.60.120.10 Mainly Beta Sandwich Jelly Rolls Jelly RollsCATH (4.3.0)
A1.10.441.10 Mainly Alpha Orthogonal Bundle Phosphomannose Isomerase domain 2CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
PF01238Phosphomannose isomerase type I C-terminal (PMI_typeI_C)Phosphomannose isomerase type I C-terminalThis is the C-terminal domain of Phosphomannose isomerase type I enzymes (EC 5.3.1.8), which contains antiparallel beta-strands in an extended jelly roll topology with short loops connecting the strands [1].Domain
PF20511Phosphomannose isomerase type I, catalytic domain (PMI_typeI_cat)Phosphomannose isomerase type I, catalytic domainThis entry represents the catalytic domain of Phosphomannose isomerase type I enzymes (EC 5.3.1.8) which contains a zinc-binding site. It is composed of beta-strands connected by long loops in a jelly roll conformation [1].Domain
PF20512Phosphomannose isomerase type I, helical insertion domain (PMI_typeI_hel)Phosphomannose isomerase type I, helical insertion domainThis entry represents the alpha-helical insertion domain of Phosphomannose isomerase type I enzymes (EC 5.3.1.8), in which the helices are packed closely, connected by short turns and loops. This domain packs closely against the catalytic domain, int ...This entry represents the alpha-helical insertion domain of Phosphomannose isomerase type I enzymes (EC 5.3.1.8), in which the helices are packed closely, connected by short turns and loops. This domain packs closely against the catalytic domain, interrupting it [1].
Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
PHOSPHOMANNOSE ISOMERASE

Structure Motif Annotation: Mechanism and Catalytic Site Atlas M-CSA Database Homepage

ChainsEnzyme NameDescriptionCatalytic Residues
mannose-6-phosphate isomerase (type I)  M-CSA #880

Mannose-6-phosphate isomerase or phosphomannose isomerase (EC:5.3.1.8) (PMI) is the enzyme that catalyses the interconversion of mannose-6-phosphate and fructose-6-phosphate. In eukaryotes PMI is involved in the synthesis of GDP-mannose, a constituent of N- and O-linked glycans and GPI anchors and in prokaryotes it participates in a variety of pathways, including capsular polysaccharide biosynthesis and D-mannose metabolism.

PMIs in this entry belong to the cupin superfamily whose functions range from isomerase and epimerase activities involved in the modification of cell wall carbohydrates in bacteria and plants, to non-enzymatic storage proteins in plant seeds, and transcription factors linked to congenital baldness in mammals [PMID: 11165500].

Defined by 8 residues: SER:A-108 [auth A-109]GLN:A-110 [auth A-111]HIS:A-112 [auth A-113]LYS:A-135 [auth A-136]GLU:A-137 [auth A-138]HIS:A-284 [auth A-285]ARG:A-303 [auth A-304]LYS:A-309 [auth A-310]
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