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Protein

Modification methylase HgiGI

Gene

hgiGIM

Organism
Herpetosiphon aurantiacus (Herpetosiphon giganteus)
Status
Reviewed-Annotation score: Annotation score: 2 out of 5-Protein inferred from homologyi

Functioni

This methylase recognizes the double-stranded sequence GRCGYC, causes specific methylation on C-? on both strands, and protects the DNA from cleavage by the HgiEI endonuclease.

Catalytic activityi

S-adenosyl-L-methionine + DNA = S-adenosyl-L-homocysteine + DNA containing 5-methylcytosine.PROSITE-ProRule annotation

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Active sitei75PROSITE-ProRule annotation1

GO - Molecular functioni

GO - Biological processi

Keywordsi

Molecular functionMethyltransferase, Transferase
Biological processRestriction system
LigandS-adenosyl-L-methionine

Protein family/group databases

REBASEi3420. M.HgiGI.

Names & Taxonomyi

Protein namesi
Recommended name:
Modification methylase HgiGI (EC:2.1.1.37)
Short name:
M.HgiGI
Alternative name(s):
Cytosine-specific methyltransferase HgiGI
Gene namesi
Name:hgiGIM
OrganismiHerpetosiphon aurantiacus (Herpetosiphon giganteus)
Taxonomic identifieri65 [NCBI]
Taxonomic lineageiBacteriaChloroflexiChloroflexiaHerpetosiphonalesHerpetosiphonaceaeHerpetosiphon

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00000878911 – ›126Modification methylase HgiGIAdd BLAST›126

Structurei

3D structure databases

ProteinModelPortaliP25267.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Domaini1 – 126SAM-dependent MTase C5-typePROSITE-ProRule annotationAdd BLAST126

Sequence similaritiesi

Belongs to the class I-like SAM-binding methyltransferase superfamily. C5-methyltransferase family.PROSITE-ProRule annotation

Family and domain databases

Gene3Di3.40.50.150. 1 hit.
InterProiView protein in InterPro
IPR018117. C5_DNA_meth_AS.
IPR001525. C5_MeTfrase.
IPR029063. SAM-dependent_MTases.
PfamiView protein in Pfam
PF00145. DNA_methylase. 1 hit.
PRINTSiPR00105. C5METTRFRASE.
SUPFAMiSSF53335. SSF53335. 1 hit.
PROSITEiView protein in PROSITE
PS00094. C5_MTASE_1. 1 hit.
PS51679. SAM_MT_C5. 1 hit.

Sequencei

Sequence statusi: Fragment.

P25267-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MKTIDLFAGC GGMSLGFMQA GFEIVAAVDN WRPAITTYQQ NFIHPIHELD
60 70 80 90 100
LAEVDEAISL IKTYSPELII GGPPCQDFSS AGKRDEGLGR ANLTLDFVKI
110 120
VLAIQPAWVI MENVERARLS KIHQQA
Length:126
Mass (Da):13,871
Last modified:May 1, 1992 - v1
Checksum:iFF3695B03BC02399
GO

Experimental Info

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Non-terminal residuei1261

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
X55143 Genomic DNA. Translation: CAA38947.1.
PIRiS21955.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
X55143 Genomic DNA. Translation: CAA38947.1.
PIRiS21955.

3D structure databases

ProteinModelPortaliP25267.
ModBaseiSearch...
MobiDBiSearch...

Protein family/group databases

REBASEi3420. M.HgiGI.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Family and domain databases

Gene3Di3.40.50.150. 1 hit.
InterProiView protein in InterPro
IPR018117. C5_DNA_meth_AS.
IPR001525. C5_MeTfrase.
IPR029063. SAM-dependent_MTases.
PfamiView protein in Pfam
PF00145. DNA_methylase. 1 hit.
PRINTSiPR00105. C5METTRFRASE.
SUPFAMiSSF53335. SSF53335. 1 hit.
PROSITEiView protein in PROSITE
PS00094. C5_MTASE_1. 1 hit.
PS51679. SAM_MT_C5. 1 hit.
ProtoNetiSearch...

Entry informationi

Entry nameiMTG1_HERAU
AccessioniPrimary (citable) accession number: P25267
Entry historyiIntegrated into UniProtKB/Swiss-Prot: May 1, 1992
Last sequence update: May 1, 1992
Last modified: February 15, 2017
This is version 75 of the entry and version 1 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Documents

  1. Restriction enzymes and methylases
    Classification of restriction enzymes and methylases and list of entries
  2. SIMILARITY comments
    Index of protein domains and families

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into one UniRef entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.