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Protein

L-lactate dehydrogenase

Gene

ldh

Organism
Streptococcus mutans serotype c (strain ATCC 700610 / UA159)
Status
Reviewed-Annotation score: Annotation score: 3 out of 5-Protein inferred from homologyi

Functioni

Catalytic activityi

(S)-lactate + NAD+ = pyruvate + NADH.

Enzyme regulationi

Fructose-1,6-diphosphate-dependent.

Pathwayi: pyruvate fermentation to lactate

This protein is involved in step 1 of the subpathway that synthesizes (S)-lactate from pyruvate.
Proteins known to be involved in this subpathway in this organism are:
  1. L-lactate dehydrogenase (ldh)
This subpathway is part of the pathway pyruvate fermentation to lactate, which is itself part of Fermentation.
View all proteins of this organism that are known to be involved in the subpathway that synthesizes (S)-lactate from pyruvate, the pathway pyruvate fermentation to lactate and in Fermentation.

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Binding sitei94SubstrateBy similarity1
Binding sitei126NAD or substrateBy similarity1
Binding sitei157SubstrateBy similarity1
Active sitei181Proton acceptorBy similarity1
Binding sitei235SubstrateBy similarity1

Regions

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Nucleotide bindingi16 – 46NADBy similarityAdd BLAST31

GO - Molecular functioni

GO - Biological processi

Complete GO annotation...

Keywords - Molecular functioni

Oxidoreductase

Keywords - Ligandi

NAD

Enzyme and pathway databases

BioCyciMetaCyc:MONOMER-13096.
SABIO-RKP26283.
UniPathwayiUPA00554; UER00611.

Names & Taxonomyi

Protein namesi
Recommended name:
L-lactate dehydrogenase (EC:1.1.1.27)
Short name:
L-LDH
Gene namesi
Name:ldh
Synonyms:lct
Ordered Locus Names:SMU_1115
OrganismiStreptococcus mutans serotype c (strain ATCC 700610 / UA159)
Taxonomic identifieri210007 [NCBI]
Taxonomic lineageiBacteriaFirmicutesBacilliLactobacillalesStreptococcaceaeStreptococcus
Proteomesi
  • UP000002512 Componenti: Chromosome

Subcellular locationi

GO - Cellular componenti

Complete GO annotation...

Keywords - Cellular componenti

Cytoplasm

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00001683961 – 328L-lactate dehydrogenaseAdd BLAST328

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Modified residuei226PhosphotyrosineBy similarity1

Keywords - PTMi

Phosphoprotein

Interactioni

Subunit structurei

Homotetramer.By similarity

Protein-protein interaction databases

STRINGi210007.SMU_1115.

Structurei

3D structure databases

ProteinModelPortaliP26283.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Belongs to the LDH/MDH superfamily. LDH family.Curated

Phylogenomic databases

eggNOGiENOG4105C80. Bacteria.
COG0039. LUCA.
KOiK00016.
OMAiMDLMQTA.
PhylomeDBiP26283.

Family and domain databases

Gene3Di3.40.50.720. 1 hit.
3.90.110.10. 1 hit.
HAMAPiMF_00488. Lactate_dehydrog. 1 hit.
InterProiIPR001557. L-lactate/malate_DH.
IPR011304. L-lactate_DH.
IPR018177. L-lactate_DH_AS.
IPR022383. Lactate/malate_DH_C.
IPR001236. Lactate/malate_DH_N.
IPR015955. Lactate_DH/Glyco_Ohase_4_C.
IPR016040. NAD(P)-bd_dom.
[Graphical view]
PANTHERiPTHR11540. PTHR11540. 1 hit.
PfamiPF02866. Ldh_1_C. 1 hit.
PF00056. Ldh_1_N. 1 hit.
[Graphical view]
PIRSFiPIRSF000102. Lac_mal_DH. 1 hit.
PRINTSiPR00086. LLDHDRGNASE.
SUPFAMiSSF51735. SSF51735. 1 hit.
SSF56327. SSF56327. 1 hit.
TIGRFAMsiTIGR01771. L-LDH-NAD. 1 hit.
PROSITEiPS00064. L_LDH. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

P26283-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MTATKQHKKV ILVGDGAVGS SYAFALVNQG IAQELGIIEI PQLFEKAVGD
60 70 80 90 100
ALDLSHALAF TSPKKIYAAK YEDCADADLV VITAGAPQKP GETRLDLVGK
110 120 130 140 150
NLAINKSIVT QVIESGFNGI FLVAANPVDI LTYATWKFSG FPAEKVIGSG
160 170 180 190 200
TSLDTARFRQ ALAEKLDVDA RSVHAYIMGE HGDSEFAVWS HANVAGVNLE
210 220 230 240 250
NYLQDVQNFN GEELIDLFEG VRDAAYTIIN KKGATFYGIA VALARITKAI
260 270 280 290 300
LDDENAILPL SVFQDGQYGF NEVFIGQPAI VGAHGIVRPV NIPLNDAEKQ
310 320
KMQASAKELK AIIDEAFSKE EFAAAARN
Length:328
Mass (Da):35,245
Last modified:November 28, 2002 - v2
Checksum:i43679B8ECDDB411C
GO

Experimental Info

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Sequence conflicti23A → R (PubMed:1937751).Curated1
Sequence conflicti23A → R (Ref. 2) Curated1

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
M72545 Genomic DNA. Translation: AAA26914.1.
L42474 Genomic DNA. Translation: AAA67466.1.
AE014133 Genomic DNA. Translation: AAN58808.1.
PIRiA43598.
RefSeqiNP_721502.1. NC_004350.2.
WP_002262228.1. NC_004350.2.

Genome annotation databases

EnsemblBacteriaiAAN58808; AAN58808; SMU_1115.
GeneIDi1028428.
KEGGismu:SMU_1115.
PATRICi19664331. VBIStrMut61772_0998.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
M72545 Genomic DNA. Translation: AAA26914.1.
L42474 Genomic DNA. Translation: AAA67466.1.
AE014133 Genomic DNA. Translation: AAN58808.1.
PIRiA43598.
RefSeqiNP_721502.1. NC_004350.2.
WP_002262228.1. NC_004350.2.

3D structure databases

ProteinModelPortaliP26283.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

STRINGi210007.SMU_1115.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiAAN58808; AAN58808; SMU_1115.
GeneIDi1028428.
KEGGismu:SMU_1115.
PATRICi19664331. VBIStrMut61772_0998.

Phylogenomic databases

eggNOGiENOG4105C80. Bacteria.
COG0039. LUCA.
KOiK00016.
OMAiMDLMQTA.
PhylomeDBiP26283.

Enzyme and pathway databases

UniPathwayiUPA00554; UER00611.
BioCyciMetaCyc:MONOMER-13096.
SABIO-RKP26283.

Family and domain databases

Gene3Di3.40.50.720. 1 hit.
3.90.110.10. 1 hit.
HAMAPiMF_00488. Lactate_dehydrog. 1 hit.
InterProiIPR001557. L-lactate/malate_DH.
IPR011304. L-lactate_DH.
IPR018177. L-lactate_DH_AS.
IPR022383. Lactate/malate_DH_C.
IPR001236. Lactate/malate_DH_N.
IPR015955. Lactate_DH/Glyco_Ohase_4_C.
IPR016040. NAD(P)-bd_dom.
[Graphical view]
PANTHERiPTHR11540. PTHR11540. 1 hit.
PfamiPF02866. Ldh_1_C. 1 hit.
PF00056. Ldh_1_N. 1 hit.
[Graphical view]
PIRSFiPIRSF000102. Lac_mal_DH. 1 hit.
PRINTSiPR00086. LLDHDRGNASE.
SUPFAMiSSF51735. SSF51735. 1 hit.
SSF56327. SSF56327. 1 hit.
TIGRFAMsiTIGR01771. L-LDH-NAD. 1 hit.
PROSITEiPS00064. L_LDH. 1 hit.
[Graphical view]
ProtoNetiSearch...

Entry informationi

Entry nameiLDH_STRMU
AccessioniPrimary (citable) accession number: P26283
Entry historyi
Integrated into UniProtKB/Swiss-Prot: May 1, 1992
Last sequence update: November 28, 2002
Last modified: November 2, 2016
This is version 127 of the entry and version 2 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome

Documents

  1. PATHWAY comments
    Index of metabolic and biosynthesis pathways
  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.