Structure of PDB 4mgh Chain A

Receptor sequence

>4mghA (length=1284) Species: 99287 (Salmonella enterica subsp. enterica serovar Typhimurium str. LT2)

GLVPRGSHMMEILRGSPALSAFRINKLLARFQAANLQVHNIYAEYVHFAD
LNAPLNDSEQAQLTRLLQYGPALSSHTPAGKLLLVTPRPGTISPWSSKAT
DIAHNCGLQQVDRLERGVAYYIEASTLTAEQWRQVAAELHDRMMETVFSS
LTDAEKLFIHHQPAPVSSVDLLGEGRQALIDANLRLGLALAEDEIDYLQE
AFTKLGRNPNDIELYMFAQANSEHCRHKIFNADWIIDGKPQPKSLFKMIK
NTFETTPDYVLSAYKDNAAVMEGSAVGRYFADHNTGRYDFHQEPAHILMK
VETHNHPTAISPWPGAATGSGGEIRDEGATGRGAKPKAGLVGFSVSNLRI
PGFEQPWEEDFGKPERIVTALDIMTEGPLGGAAFNNEFGRPALTGYFRTY
EEKVNSHNGEELRGYHKPIMLAGGIGNIRADHVQKGEIVVGAKLIVLGGP
AMNIGFASVQRDNPEMERRCQEVIDRCWQLGDANPILFIHDVGAGGLSNA
MPELVSDGGRGGKFELRDILSDEPGMSPLEIWCNESQERYVLAVAADQLP
LFDELCKRERAPYAVIGDATEEQHLSLHDNHFDNQPIDLPLDVLLGKTPK
MTRDVQTLKAKGDALNRADITIADAVKRVLHLPTVAEKTFLVTIGDRTVT
GMVARDQMVGPWQVPVADCAVTTASLDSYYGEAMSIGERAPVALLDFAAS
ARLAVGEALTNIAATQIGDIKRIKLSANWMAAAGHPGEDAGLYDAVKAVG
EELCPQLGLTIPVGKDSMSMKTRWQEGNEQREMTSPLSLVISAFARVEDV
RHTLTPQLSTEDNALLLIDLGKGHNALGATALAQVYRQLGDKPADVRDVA
QLKGFYDAMQALVAARKLLAWHDRSDGGLLVTLAEMAFAGHCGVQVDIAA
LGDDHLAALFNEELGGVIQVRAEDRDAVEALLAQYGLADCVHYLGQALAG
DRFVITANDQTVFSESRTTLRVWWAETTWQMQRLRDNPQCADQEHEAKAN
DTDPGLNVKLSFDINEDIAAPYIATGARPKVAVLREQGVNSHVEMAAAFH
RAGFDAIDVHMSDLLGGRIGLGNFHALVACGGFSYGDVLGAGEGWAKSIL
FNHRVRDEFETFFHRPQTLALGVCNGCQMMSNLRELIPGSELWPRFVRNH
SDRFEARFSLVEVTQSPSLLLQGMVGSQMPIAVSHGEGRVEVRDDAHLAA
LESKGLVALRYVDNFGKVTETYPANPNGSPNGITAVTTENGRVTIMMPHP
ERVFRTVANSWHPENWGEDSPWMRIFRNARKQLG

3D structure

• PDB: 4mgh Importance of hydrophobic cavities in allosteric regulation of formylglycinamide synthetase: insight from xenon trapping and statistical coupling analysis
• Chain: A
• Resolution: 2.65 Å

Enzymatic activity

• Enzyme Commision number: 6.3.5.3: phosphoribosylformylglycinamidine synthase.

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)	Binding affinity
BS01	ADP	A	V333 T386 G387 Y388 K649 L652 Q668 P676 A678 N722	V341 T394 G395 Y396 K638 L641 Q657 P665 A667 N711
BS02	MG	A	D679 N722 D884	D668 N711 D873
BS03	XE	A	F1060 L1130 A1131 L1132	F1049 L1119 A1120 L1121
BS04	XE	A	A681 V682 T683 E693 A694 M695	A670 V671 T672 E682 A683 M684
BS05	XE	A	F194 L605	F202 L594

Gene Ontology

Molecular Function

• GO:0004642 phosphoribosylformylglycinamidine synthase activity
• GO:0005524 ATP binding
• GO:0016874 ligase activity
• GO:0046872 metal ion binding

Biological Process

• GO:0006164 purine nucleotide biosynthetic process
• GO:0006189 'de novo' IMP biosynthetic process
• GO:0006541 glutamine metabolic process

Cellular Component

• GO:0005737 cytoplasm

External links

• PDB: RCSB:4mgh, PDBe:4mgh, PDBj:4mgh
• PDBsum: 4mgh
• PubMed: 24223728
• UniProt: P74881|PUR4_SALTY Phosphoribosylformylglycinamidine synthase (Gene Name=purL)