UniProtKB - P15446 (MTH2_HAEPA)
Protein
Modification methylase HpaII
Gene
hpaIIM
Organism
Haemophilus parainfluenzae
Status
Functioni
This methylase recognizes the double-stranded sequence CCGG, causes specific methylation on C-2 on both strands, and protects the DNA from cleavage by the HpaII endonuclease.
Catalytic activityi
- a 2'-deoxycytidine in DNA + S-adenosyl-L-methionine = a 5-methyl-2'-deoxycytidine in DNA + H+ + S-adenosyl-L-homocysteinePROSITE-ProRule annotationEC:2.1.1.37PROSITE-ProRule annotation
Sites
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Active sitei | 103 | PROSITE-ProRule annotation | 1 |
GO - Molecular functioni
- DNA (cytosine-5-)-methyltransferase activity Source: UniProtKB-EC
GO - Biological processi
- DNA restriction-modification system Source: UniProtKB-KW
Keywordsi
Molecular function | Methyltransferase, Transferase |
Biological process | Restriction system |
Ligand | S-adenosyl-L-methionine |
Names & Taxonomyi
Protein namesi | Recommended name: Modification methylase HpaII (EC:2.1.1.37)Short name: M.HpaII Alternative name(s): Cytosine-specific methyltransferase HpaII |
Gene namesi | Name:hpaIIM |
Organismi | Haemophilus parainfluenzae |
Taxonomic identifieri | 729 [NCBI] |
Taxonomic lineagei | Bacteria › Proteobacteria › Gammaproteobacteria › Pasteurellales › Pasteurellaceae › Haemophilus |
Pathology & Biotechi
Mutagenesis
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Mutagenesisi | 55 | C → Y in temperature-sensitive mutant. | 1 |
PTM / Processingi
Molecule processing
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
ChainiPRO_0000087883 | 1 – 358 | Modification methylase HpaIIAdd BLAST | 358 |
Interactioni
Subunit structurei
Monomer.
Family & Domainsi
Domains and Repeats
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Domaini | 32 – 356 | SAM-dependent MTase C5-typePROSITE-ProRule annotationAdd BLAST | 325 |
Sequence similaritiesi
Belongs to the class I-like SAM-binding methyltransferase superfamily. C5-methyltransferase family.PROSITE-ProRule annotation
Family and domain databases
InterProi | View protein in InterPro IPR018117 C5_DNA_meth_AS IPR001525 C5_MeTfrase IPR029063 SAM-dependent_MTases |
Pfami | View protein in Pfam PF00145 DNA_methylase, 1 hit |
PRINTSi | PR00105 C5METTRFRASE |
SUPFAMi | SSF53335 SSF53335, 1 hit |
TIGRFAMsi | TIGR00675 dcm, 1 hit |
PROSITEi | View protein in PROSITE PS00094 C5_MTASE_1, 1 hit PS51679 SAM_MT_C5, 1 hit |
i Sequence
Sequence statusi: Complete.
P15446-1 [UniParc]FASTAAdd to basket
10 20 30 40 50
MKDVLDDNLL EEPAAQYSLF EPESNPNLRE KFTFIDLFAG IGGFRIAMQN
60 70 80 90 100
LGGKCIFSSE WDEQAQKTYE ANFGDLPYGD ITLEETKAFI PEKFDILCAG
110 120 130 140 150
FPCQAFSIAG KRGGFEDTRG TLFFDVAEII RRHQPKAFFL ENVKGLKNHD
160 170 180 190 200
KGRTLKTILN VLREDLGYFV PEPAIVNAKN FGVPQNRERI YIVGFHKSTG
210 220 230 240 250
VNSFSYPEPL DKIVTFADIR EEKTVPTKYY LSTQYIDTLR KHKERHESKG
260 270 280 290 300
NGFGYEIIPD DGIANAIVVG GMGRERNLVI DHRITDFTPT TNIKGEVNRE
310 320 330 340 350
GIRKMTPREW ARLQGFPDSY VIPVSDASAY KQFGNSVAVP AIQATGKKIL
EKLGNLYD
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | X51322 Genomic DNA Translation: CAA35705.1 L17342 Genomic DNA Translation: AAA20481.1 |
PIRi | S15908 |
Similar proteinsi
Cross-referencesi
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | X51322 Genomic DNA Translation: CAA35705.1 L17342 Genomic DNA Translation: AAA20481.1 |
PIRi | S15908 |
3D structure databases
SMRi | P15446 |
ModBasei | Search... |
Family and domain databases
InterProi | View protein in InterPro IPR018117 C5_DNA_meth_AS IPR001525 C5_MeTfrase IPR029063 SAM-dependent_MTases |
Pfami | View protein in Pfam PF00145 DNA_methylase, 1 hit |
PRINTSi | PR00105 C5METTRFRASE |
SUPFAMi | SSF53335 SSF53335, 1 hit |
TIGRFAMsi | TIGR00675 dcm, 1 hit |
PROSITEi | View protein in PROSITE PS00094 C5_MTASE_1, 1 hit PS51679 SAM_MT_C5, 1 hit |
ProtoNeti | Search... |
MobiDBi | Search... |
Entry informationi
Entry namei | MTH2_HAEPA | |
Accessioni | P15446Primary (citable) accession number: P15446 | |
Entry historyi | Integrated into UniProtKB/Swiss-Prot: | April 1, 1990 |
Last sequence update: | April 1, 1990 | |
Last modified: | May 8, 2019 | |
This is version 95 of the entry and version 1 of the sequence. See complete history. | ||
Entry statusi | Reviewed (UniProtKB/Swiss-Prot) | |
Annotation program | Prokaryotic Protein Annotation Program |
Miscellaneousi
Documents
- Restriction enzymes and methylases
Classification of restriction enzymes and methylases and list of entries - SIMILARITY comments
Index of protein domains and families