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Human Metabolome Database Version 2.5

 

Showing metabocard for Selenohomocysteine (HMDB04119)

Legend: metabolite field enzyme field

Version 2.5
Creation Date 2006-08-13 12:34:05
Update Date 2010-04-08 04:00:54
Accession Number HMDB04119
Secondary Accession Numbers Not Available
Common Name Selenohomocysteine
Description Selenohomocysteine is the precursor of selenocysteine, which is synthesized by catalysis of cystathionine beta-synthase (EC 4.2.1.22) and cystathionine gamma-lyase (EC 4.4.1.1), in mammalian systems (both enzymes require pyridoxal phosphate). Selenohomocysteine (lactone) has been found to be a competitive and irreversible inhibitor of lysyl oxidase; this may relate to the development of connective tissue defects seen in homocystinuria. L-Selenohomocysteine also can serve as a substituent donor in the beta-replacement reaction to yield selenocystathionine. (PMID: 10609891, 9405445, 6456763, 3338973)
Synonyms
  1. Se-selenocysteine
  2. 2-amino-4-selanyl-butanoic acid
  3. 2-amino-4-selanyl-butanoate
Chemical IUPAC Name Not Available
Chemical Formula C4H9NO2Se
Chemical Structure Structure
Chemical Taxonomy
Kingdom
  • Organic
Super Class
  • Amino acids and Amino Acid conjugates
Class
  • Amino Acids
Sub Class
  • NA
Family
  • Mammalian Metabolite
Species
  • primary amine
  • primary aliphatic amine (alkylamine)
  • carboxylic acid
  • alpha-aminoacid
Biofunction
  • Protein synthesis, amino acid biosynthesis
Application
—
Source
  • Endogenous
Average Molecular Weight 182.080
Monoisotopic Molecular Weight 182.979843
Isomeric SMILES NC(CC[SeH])C(O)=O
Canonical SMILES NC(CC[SeH])C(O)=O
KEGG Compound ID C05698 Link Image
BioCyc ID SELENOHOMOCYSTEINE Link Image
BiGG ID 46312 Link Image
Wikipedia Link Not Available
NuGOwiki Link HMDB04119 Link Image
Metagene Link HMDB04119 Link Image
METLIN ID Not Available
PubChem Compound 6326973 Link Image
PubChem Substance 8005 Link Image
ChEBI ID Not Available
CAS Registry Number 29412-93-9
InChI Identifier InChI=1/C4H9NO2Se/c5-3(1-2-8)4(6)7/h3,8H,1-2,5H2,(H,6,7)
Synthesis Reference Not Available
Melting Point (Experimental) Not Available
Experimental Water Solubility Not Available Source: PhysProp
Predicted Water Solubility 209.99998 mg/mL [Predicted by ALOGPS] Calculated using ALOGPS
Physiological Charge 0
State Solid
Experimental LogP/Hydrophobicity Not Available Source: PhysProp
Predicted LogP/Hydrophobicity -3.07 [Predicted by ALOGPS] Calculated using ALOGPS
Material Safety Data Sheet (MSDS) Not Available
MOL File Show
SDF File Show
PDB File Show
2D Structure
3D Structure
Experimental PDB ID Not Available
Experimental 1H NMR Spectrum Not Available
Experimental 13C NMR Spectrum Not Available
Experimental 13C HSQC Spectrum Not Available
Predicted 1H NMR Spectrum Show Image
Show Peaklist
Predicted 13C NMR Spectrum Show Image
Show Peaklist
Mass Spectrum Not Available
Simplified TOCSY Spectrum Not Available
BMRB Spectrum Not Available
Cellular Location Not Available
Biofluid Location Not Available
Tissue Location Not Available
Concentrations (Normal) Not Available
Concentrations (Abnormal) Not Available
Associated Disorders Not Available
OMIM ID Not Available
Pathways
Name SMPDB Link KEGG Link
Selenoamino Acid Metabolism SMP00029 Link Image map00450 Link Image
General References Not Available
Metabolic Enzymes
  1. Putative adenosylhomocysteinase 3
  2. Putative adenosylhomocysteinase 2
  3. Cystathionine beta-synthase
  4. cDNA FLJ76252, highly similar to Homo sapiens S-adenosylhomocysteine hydrolase
  5. cDNA, FLJ94281, Homo sapiens cystathionine-beta-synthase (CBS), mRNA (Cystathionine-beta-synthase, isoform CRA_b)
Enzyme 1 [top]
Enzyme 1 ID 5933
Enzyme 1 Name Putative adenosylhomocysteinase 3
Enzyme 1 Synonyms
  1. S-adenosyl-L- homocysteine hydrolase 3
  2. AdoHcyase 3
Enzyme 1 Gene Name KIAA0828
Enzyme 1 Protein Sequence >Putative adenosylhomocysteinase 3 
MSVQVVSAAAAAKVPEVELKDLSPSEAESQLGLSTAAVGAMAPPAGGGDPEAPAPAAERP
PVPGPGSGPAAALSPAAGKVPQASAMKRSDPHHQHQRHRDGGEALVSPDGTVTEAPRTVK
KQIQFADQKQEFNKRPTKIGRRSLSRSISQSSTDSYSSAASYTDSSDDETSPRDKQQKNS
KGSSDFCVKNIKQAEFGRREIEIAEQEMPALMALRKRAQGEKPLAGAKIVGCTHITAQTA
VLMETLGALGAQCRWAACNIYSTLNEVAAALAESGFPVFAWKGESEDDFWWCIDRCVNVE
GWQPNMILDDGGDLTHWIYKKYPNMFKKIKGIVEESVTGVHRLYQLSKAGKLCVPAMNVN
DSVTKQKFDNLYCCRESILDGLKRTTDMMFGGKQVVVCGYGEVGKGCCAALKAMGSIVYV
TEIDPICALQACMDGFRLVKLNEVIRQVDIVITCTGNKNVVTREHLDRMKNSCIVCNMGH
SNTEIDVASLRTPELTWERVRSQVDHVIWPDGKRIVLLAEGRLLNLSCSTVPTFVLSITA
TTQALALIELYNAPEGRYKQDVYLLPKKMDEYVASLHLPTFDAHLTELTDEQAKYLGLNK
NGPFKPNYYRY
Enzyme 1 Number of Residues 611
Enzyme 1 Molecular Weight 66722
Enzyme 1 Theoretical pI 7.39
Enzyme 1 GO Classification
Function
  • adenosylhomocysteinase activity
  • catalytic activity
  • hydrolase activity
  • hydrolase activity, acting on ether bonds
  • trialkylsulfonium hydrolase activity
Process
  • cellular metabolism
  • metabolism
  • one-carbon compound metabolism
  • physiological process
Component
—
Enzyme 1 General Function Coenzyme transport and metabolism
Enzyme 1 Specific Function S-adenosyl-L-homocysteine + H(2)O = L- homocysteine + adenosine
Enzyme 1 Pathways
Enzyme 1 Reactions
  • S-adenosyl-L-homocysteine + H2O = L-homocysteine + adenosine
Enzyme 1 Pfam Domain Function
Enzyme 1 Signals
  • None
Enzyme 1 Transmembrane Regions
  • None
Enzyme 1 Essentiality Not Available
Enzyme 1 GenBank ID Protein 4240145 Link Image
Enzyme 1 UniProtKB/Swiss-Prot ID Q96HN2 Link Image
Enzyme 1 UniProtKB/Swiss-Prot Entry Name SAHH3_HUMAN Link Image
Enzyme 1 PDB ID Not Available
Enzyme 1 Cellular Location Not Available
Enzyme 1 Gene Sequence >1860 bp 
GAGCCGGTGGTTGCAGCGGAGGCGGTGATGTCGGTGCAGGTTGTGTCAGCCGCGGCTGCC
GCCAAGGTGCCTGAGGTGGAGCTGAAGGACCTGAGCCCCTCCGAGGCGGAGTCGCAACTA
GGACTGAGCACGGCCGCCGTGGGCGCCATGGCCCCCCCGGCGGGCGGTGGAGACCCTGAG
GCTCCAGCTCCCGCCGCGGAGCGGCCCCCGGTCCCCGGCCCGGGCTCGGGGCCCGCCGCC
GCTCTCAGCCCCGCCGCCGGGAAGGTGCCTCAGGCGTCGGCCATGAAGCGGAGCGACCCA
CATCACCAGCACCAGCGGCACCGCGACGGCGGCGAGGCCCTGGTCAGCCCCGACGGCACC
GTCACCGAGGCGCCGCGCACAGTCAAGAAGATCCAGTTTGCTGACCAGAAGCAAGAATTC
AACAAACGTCCCACCAAAATTGGACGTCGCTCTTTGTCTCGTTCCATTTCTCAGTCATCT
ACTGACAGCTACAGCTCAGCGGCTTCATATACAGATAGCTCTGATGATGAGACATCGCCC
AGGGACAAGCAGCAAAAGAACTCTAAGGGAAGCAGTGACTTCTGTGTTAAGAACATCAAA
CAGGCAGAGTTTGGACGAAGAGAAATTGAAATTGCTGAACAAGAAATGCCTGCATTGATG
GCTTTGAGGAAGAGAGCTCAAGGAGAAAAGCCTTTGGCTGGAGCCAAAATCGTGGGTTGC
ACACACATCACTGCTCAGACTGCTGTGCTTATGGAAACTCTGGGTGCTCTGGGGGCCCAG
TGCCGATGGGCTGCCTGCAACATCTATTCCACTCTCAATGAAGTGGCTGCTGCTCTAGCA
GAAAGTGGATTTCCTGTTTTTGCCTGGAAGGGAGAGTCAGAAGATGACTTTTGGTGGTGT
ATCGATAGATGTGTGAATGTGGAGGGCTGGCAGCCAAACATGATCTTGGATGATGGAGGG
GATCTTACCCACTGGATTTATAAAAAGTATCCCAACATGTTTAAGAAAATCAAGGGCATA
GTAGAGGAGAGTGTTACTGGAGTTCACAGGCTGTACCAACTGTCCAAAGCTGGGAAGCTG
TGTGTTCCAGCCATGAATGTCAATGACTCAGTCACCAAACAGAAATTTGACAACCTCTAC
TGTTGCCGTGAATCAATTCTTGATGGACTTAAAAGGACAACAGACATGATGTTTGGTGGA
AAGCAAGTGGTAGTCTGTGGCTATGGAGAGGTGGGGAAAGGGTGCTGTGCTGCCCTGAAA
GCCATGGGCTCCATTGTGTATGTAACTGAAATTGACCCCATCTGTGCCCTGCAAGCCTGT
ATGGATGGATTTCGACTGGTGAAATTAAATGAGGTCATCCGACAAGTGGACATTGTTATT
ACCTGTACAGGTAACAAGAATGTGGTAACCAGAGAGCACTTGGACCGTATGAAGAATAGC
TGCATCGTTTGTAACATGGGACATTCCAACACAGAGATTGACGTGGCGAGTCTGCGGACA
CCAGAACTGACCTGGGAGCGAGTGAGATCTCAAGTTGACCATGTGATATGGCCTGATGGC
AAGAGGATAGTACTGCTGGCAGAGGGCCGCCTGCTGAACCTTAGCTGCTCCACAGTGCCT
ACATTTGTGCTCTCAATCACTGCTACTACTCAGGCTCTTGCCTTGATAGAGCTTTACAAT
GCTCCTGAGGGTCGCTATAAGCAGGATGTCTACCTGTTGCCCAAGAAGATGGATGAGTAT
GTGGCCAGCCTACACCTGCCTACCTTTGATGCCCACTTGACAGAGCTGACAGATGAACAG
GCCAAGTATCTGGGACTCAACAAGAATGGGCCCTTCAAGCCTAATTACTACAGGTATTAA
Enzyme 1 GenBank Gene ID AB020635 Link Image
Enzyme 1 GeneCard ID Not Available
Enzyme 1 GenAtlas ID Not Available
Enzyme 1 HGNC ID Not Available
Enzyme 1 Chromosome Location 7
Enzyme 1 Locus 7q32.1
Enzyme 1 SNPs SNPJam Report Link Image
Enzyme 1 General References
  1. Nagase T, Ishikawa K, Suyama M, Kikuno R, Hirosawa M, Miyajima N, Tanaka A, Kotani H, Nomura N, Ohara O: Prediction of the coding sequences of unidentified human genes. XII. The complete sequences of 100 new cDNA clones from brain which code for large proteins in vitro. DNA Res. 1998 Dec 31;5(6):355-64. [PubMed Link Image]
Enzyme 1 Metabolite References Not Available
Enzyme 2 [top]
Enzyme 2 ID 5935
Enzyme 2 Name Putative adenosylhomocysteinase 2
Enzyme 2 Synonyms
  1. S-adenosyl-L- homocysteine hydrolase 2
  2. AdoHcyase 2
  3. S-adenosylhomocysteine hydrolase-like 1
  4. DC-expressed AHCY-like molecule
Enzyme 2 Gene Name AHCYL1
Enzyme 2 Protein Sequence >Putative adenosylhomocysteinase 2 
MSMPDAMPLPGVGEELKQAKEIEDAEKYSFMATVTKAPKKQIQFADDMQEFTKFPTKTGR
RSLSRSISQSSTDSYSSAASYTDSSDDEVSPREKQQTNSKGSSNFCVKNIKQAEFGRREI
EIAEQDMSALISLRKRAQGEKPLAGAKIVGCTHITAQTAVLIETLCALGAQCRWSACNIY
STQNEVAAALAEAGVAVFAWKGESEDDFWWCIDRCVNMDGWQANMILDDGGDLTHWVYKK
YPNVFKKIRGIVEESVTGVHRLYQLSKAGKLCVPAMNVNDSVTKQKFDNLYCCRESILDG
LKRTTDVMFGGKQVVVCGYGEVGKGCCAALKALGAIVYITEIDPICALQACMDGFRVVKL
NEVIRQVDVVITCTGNKNVVTREHLDRMKNSCIVCNMGHSNTEIDVTSLRTPELTWERVR
SQVDHVIWPDGKRVVLLAEGRLLNLSCSTVPTFVLSITATTQALALIELYNAPEGRYKQD
VYLLPKKMDEYVASLHLPSFDAHLTELTDDQAKYLGLNKNGPFKPNYYRY
Enzyme 2 Number of Residues 530
Enzyme 2 Molecular Weight 58952
Enzyme 2 Theoretical pI 6.87
Enzyme 2 GO Classification
Function
  • adenosylhomocysteinase activity
  • catalytic activity
  • hydrolase activity
  • hydrolase activity, acting on ether bonds
  • trialkylsulfonium hydrolase activity
Process
  • cellular metabolism
  • metabolism
  • one-carbon compound metabolism
  • physiological process
Component
—
Enzyme 2 General Function Coenzyme transport and metabolism
Enzyme 2 Specific Function S-adenosyl-L-homocysteine + H(2)O = L- homocysteine + adenosine
Enzyme 2 Pathways
Enzyme 2 Reactions
  • S-adenosyl-L-homocysteine + H2O = L-homocysteine + adenosine
Enzyme 2 Pfam Domain Function
Enzyme 2 Signals
  • None
Enzyme 2 Transmembrane Regions
  • None
Enzyme 2 Essentiality Not Available
Enzyme 2 GenBank ID Protein 16588687 Link Image
Enzyme 2 UniProtKB/Swiss-Prot ID O43865 Link Image
Enzyme 2 UniProtKB/Swiss-Prot Entry Name SAHH2_HUMAN Link Image
Enzyme 2 PDB ID Not Available
Enzyme 2 Cellular Location Not Available
Enzyme 2 Gene Sequence >1593 bp 
ATGTCGATGCCTGACGCGATGCCGCTGCCCGGGGTCGGGGAGGAGCTGAAGCAGGCCAAG
GAGATCGAGGACGCCGAGAAGTACTCCTTCATGGCCACCGTCACCAAGGCGCCCAAGAAG
CAAATCCAGTTTGCTGATGACATGCAGGAGTTCACCAAATTCCCCACCAAAACTGGCCGA
AGATCTTTGTCTCGCTCGATCTCACAGTCCTCCACTGACAGCTACAGTTCAGCTGCATCC
TACACAGATAGCTCTGATGATGAGGTTTCTCCCCGAGAGAAGCAGCAAACCAACTCCAAG
GGCAGCAGCAATTTCTGTGTGAAGAACATCAAGCAGGCAGAATTTGGACGCCGGGAGATT
GAGATTGCAGAGCAAGACATGTCTGCTCTGATTTCACTCAGGAAACGTGCTCAGGGGGAG
AAGCCCTTGGCTGGTGCTAAAATAGTGGGCTGTACACACATCACAGCCCAGACAGCGGTG
TTGATTGAGACACTCTGTGCCCTGGGGGCTCAGTGCCGCTGGTCTGCTTGTAACATCTAC
TCAACTCAGAATGAAGTAGCTGCAGCACTGGCTGAGGCTGGAGTTGCAGTGTTCGCTTGG
AAGGGCGAGTCAGAAGATGACTTCTGGTGGTGTATTGACCGCTGTGTGAACATGGATGGG
TGGCAGGCCAACATGATCCTGGATGATGGGGGAGACTTAACCCACTGGGTTTATAAGAAG
TATCCAAACGTGTTTAAGAAGATCCGAGGCATTGTGGAAGAGAGCGTGACTGGTGTTCAC
AGGCTGTATCAGCTCTCCAAAGCTGGGAAGCTCTGTGTTCCGGCCATGAACGTCAATGAT
TCTGTTACCAAACAGAAGTTTGATAACTTGTACTGCTGCCGAGAATCCATTTTGGATGGC
CTGAAGAGGACCACAGATGTGATGTTTGGTGGGAAACAAGTGGTGGTGTGTGGCTATGGT
GAGGTAGGCAAGGGCTGCTGTGCTGCTCTCAAAGCTCTTGGAGCAATTGTCTACATTACC
GAAATCGACCCCATCTGTGCTCTGCAGGCCTGCATGGATGGGTTCAGGGTGGTAAAGCTA
AATGAAGTCATCCGGCAAGTCGATGTCGTAATAACTTGCACAGGAAATAAGAATGTAGTG
ACACGGGAGCACTTGGATCGCATGAAAAACAGTTGTATCGTATGCAATATGGGCCACTCC
AACACAGAAATCGATGTGACCAGCCTCCGCACTCCGGAGCTGACGTGGGAGCGAGTACGT
TCTCAGGTGGACCATGTCATCTGGCCAGATGGCAAACGAGTTGTCCTCCTGGCAGAGGGT
CGTCTACTCAATTTGAGCTGCTCCACAGTTCCCACCTTTGTTCTGTCCATCACAGCCACA
ACACAGGCTTTGGCACTGATAGAACTCTATAATGCACCCGAGGGGCGATACAAGCAGGAT
GTGTACTTGCTTCCTAAGAAAATGGATGAATACGTTGCCAGCTTGCATCTGCCATCATTT
GATGCCCACCTTACAGAGCTGACAGATGACCAAGCAAAATATCTGGGACTCAACAAAAAT
GGGCCATTCAAACCTAATTATTACAGATACTAA
Enzyme 2 GenBank Gene ID AF315687 Link Image
Enzyme 2 GeneCard ID AHCYL1 Link Image
Enzyme 2 GenAtlas ID AHCYL1 Link Image
Enzyme 2 HGNC ID HGNC:344 Link Image
Enzyme 2 Chromosome Location 1
Enzyme 2 Locus 1p13.2
Enzyme 2 SNPs SNPJam Report Link Image
Enzyme 2 General References
  1. Dekker JW, Budhia S, Angel NZ, Cooper BJ, Clark GJ, Hart DN, Kato M: Identification of an S-adenosylhomocysteine hydrolase-like transcript induced during dendritic cell differentiation. Immunogenetics. 2002 Mar;53(12):993-1001. Epub 2002 Feb 13. [PubMed Link Image]
Enzyme 2 Metabolite References Not Available
Enzyme 3 [top]
Enzyme 3 ID 6059
Enzyme 3 Name Cystathionine beta-synthase
Enzyme 3 Synonyms
  1. Serine sulfhydrase
  2. Beta- thionase
Enzyme 3 Gene Name CBS
Enzyme 3 Protein Sequence >Cystathionine beta-synthase 
MPSETPQAEVGPTGCPHRSGPHSAKGSLEKGSPEDKEAKEPLWIRPDAPSRCTWQLGRPA
SESPHHHTAPAKSPKILPDILKKIGDTPMVRINKIGKKFGLKCELLAKCEFFNAGGSVKD
RISLRMIEDAERDGTLKPGDTIIEPTSGNTGIGLALAAAVRGYRCIIVMPEKMSSEKVDV
LRALGAEIVRTPTNARFDSPESHVGVAWRLKNEIPNSHILDQYRNASNPLAHYDTTADEI
LQQCDGKLDMLVASVGTGGTITGIARKLKEKCPGCRIIGVDPEGSILAEPEELNQTEQTT
YEVEGIGYDFIPTVLDRTVVDKWFKSNDEEAFTFARMLIAQEGLLCGGSAGSTVAVAVKA
AQELQEGQRCVVILPDSVRNYMTKFLSDRWMLQKGFLKEEDLTEKKPWWWHLRVQELGLS
APLTVLPTITCGHTIEILREKGFDQAPVVDEAGVILGMVTLGNMLSSLLAGKVQPSDQVG
KVIYKQFKQIRLTDTLGRLSHILEMDHFALVVHEQIQYHSTGKSSQRQMVFGVVTAIDLL
NFVAAQERDQK
Enzyme 3 Number of Residues 551
Enzyme 3 Molecular Weight 60587
Enzyme 3 Theoretical pI 6.63
Enzyme 3 GO Classification
Function
  • carbon-oxygen lyase activity
  • catalytic activity
  • cystathionine beta-synthase activity
  • hydro-lyase activity
  • lyase activity
Process
  • L-serine metabolism
  • amino acid and derivative metabolism
  • amino acid metabolism
  • cellular metabolism
  • cysteine biosynthesis
  • cysteine biosynthesis from serine
  • cysteine biosynthesis via cystathione
  • metabolism
  • physiological process
  • serine family amino acid metabolism
  • sulfur amino acid biosynthesis
  • sulfur amino acid metabolism
Component
  • cell
  • cytoplasm
  • intracellular
Enzyme 3 General Function Amino acid transport and metabolism
Enzyme 3 Specific Function L-serine + L-homocysteine = L-cystathionine + H(2)O
Enzyme 3 Pathways
Enzyme 3 Reactions
  • L-serine + L-homocysteine = cystathionine + H2O
Enzyme 3 Pfam Domain Function
Enzyme 3 Signals
  • None
Enzyme 3 Transmembrane Regions
  • None
Enzyme 3 Essentiality Not Available
Enzyme 3 GenBank ID Protein 388716 Link Image
Enzyme 3 UniProtKB/Swiss-Prot ID P35520 Link Image
Enzyme 3 UniProtKB/Swiss-Prot Entry Name CBS_HUMAN Link Image
Enzyme 3 PDB ID Not Available
Enzyme 3 Cellular Location Not Available
Enzyme 3 Gene Sequence >1656 bp 
ATGCCTTCTGAGACCCCCCAGGCAGAAGTGGGGCCCACAGGCTGCCCCCACCGCTCAGGG
CCACACTCGGCGAAGGGGAGCCTGGAGAAGGGGTCCCCAGAGGATAAGGAAGCCAAGGAG
CCCCTGTGGATCCGGCCCGATGCTCCGAGCAGGTGCACCTGGCAGCTGGGCCGGCCTGCC
TCCGAGTCCCCACATCACCACACTGCCCCGGCAAAATCTCCAAAAATCTTGCCAGATATT
CTGAAGAAAATCGGGGACACCCCTATGGTCAGAATCAACAAGATTGGGAAGAAGTTCGGC
CTGAAGTGTGAGCTCTTGGCCAAGTGTGAGTTCTTCAACGCGGGCGGGAGCGTGAAGGAC
CGCATCAGCCTGCGGATGATTGAGGATGCTGAGCGCGACGGGACGCTGAAGCCCGGGGAC
ACGATTATCGAGCCGACATCCGGGAACACCGGGATCGGGCTGGCCCTGGCTGCGGCAGTG
AGGGGCTATCGCTGCATCATCGTGATGCCAGAGAAGATGAGCTCCGAGAAGGTGGACGTG
CTGCGGGCACTGGGGGCTGAGATTGTGAGGACGCCCACCAATGCCAGGTTCGACTCCCCG
GAGTCACACGTGGGGGTGGCCTGGCGGCTGAAGAACGAAATCCCCAATTCTCACATCCTA
GACCAGTACCGCAACGCCAGCAACCCCCTGGCTCACTACGACACCACCGCTGATGAGATC
CTGCAGCAGTGTGATGGGAAGCTGGACATGCTGGTGGCTTCAGTGGGCACGGGCGGCACC
ATCACGGGCATTGCCAGGAAGCTGAAGGAGAAGTGTCCTGGATGCAGGATCATTGGGGTG
GATCCCGAAGGGTCCATCCTCGCAGAGCCGGAGGAGCTGAACCAGACGGAGCAGACAACC
TACGAGGTGGAAGGGATCGGCTACGACTTCATCCCCACGGTGCTGGACAGGACGGTGGTG
GACAAGTGGTTCAAGAGCAACGATGAGGAGGCGTTCACCTTTGCCCGCATGCTGATCGCG
CAAGAGGGGCTGCTGTGCGGTGGCAGTGCTGGCAGCACGGTGGCGGTGGCCGTGAAGGCT
GCGCAGGAGCTGCAGGAGGGCCAGCGCTGCGTGGTCATTCTGCCCGACTCAGTGCGGAAC
TACATGACCAAGTTCCTGAGCGACAGGTGGATGCTGCAGAAGGGCTTTCTGAAGGAGGAG
GACCTCACGGAGAAGAAGCCCTGGTGGTGGCACCTCCGTGTTCAGGAGCTGGGCCTGTCA
GCCCCGCTGACCGTGCTCCCGACCATCACCTGTGGGCACACCATCGAGATCCTCCGGGAG
AAGGGCTTCGACCAGGCGCCCGTGGTGGATGAGGCGGGGGTAATCCTGGGAATGGTGACG
CTTGGGAACATGCTCTCGTCCCTGCTTGCCGGGAAGGTGCAGCCGTCAGACCAAGTTGGC
AAAGTCATCTACAAGCAGTTCAAACAGATCCGCCTCACGGACACGCTGGGCAGGCTCTCG
CACATCCTGGAGATGGACCACTTCGCCCTGGTGGTGCACGAGCAGATCCAGTACCACAGC
ACCGGGAAGTCCAGTCAGCGGCAGATGGTGTTCGGGGTGGTCACCGCCATTGACTTGCTG
AACTTCGTGGCCGCCCAGGAGCGGGACCAGAAGTGA
Enzyme 3 GenBank Gene ID L19501 Link Image
Enzyme 3 GeneCard ID CBS Link Image
Enzyme 3 GenAtlas ID CBS Link Image
Enzyme 3 HGNC ID HGNC:1550 Link Image
Enzyme 3 Chromosome Location Not Available
Enzyme 3 Locus Not Available
Enzyme 3 SNPs SNPJam Report Link Image
Enzyme 3 General References
  1. Kraus JP, Le K, Swaroop M, Ohura T, Tahara T, Rosenberg LE, Roper MD, Kozich V: Human cystathionine beta-synthase cDNA: sequence, alternative splicing and expression in cultured cells. Hum Mol Genet. 1993 Oct;2(10):1633-8. [PubMed Link Image]
  2. Chasse JF, Paly E, Paris D, Paul V, Sinet PM, Kamoun P, London J: Genomic organization of the human cystathionine beta-synthase gene: evidence for various cDNAs. Biochem Biophys Res Commun. 1995 Jun 26;211(3):826-32. [PubMed Link Image]
  3. Kruger WD, Cox DR: A yeast system for expression of human cystathionine beta-synthase: structural and functional conservation of the human and yeast genes. Proc Natl Acad Sci U S A. 1994 Jul 5;91(14):6614-8. [PubMed Link Image]
  4. Chasse JF, Paul V, Escanez R, Kamoun P, London J: Human cystathionine beta-synthase: gene organization and expression of different 5' alternative splicing. Mamm Genome. 1997 Dec;8(12):917-21. [PubMed Link Image]
  5. Kraus JP, Oliveriusova J, Sokolova J, Kraus E, Vlcek C, de Franchis R, Maclean KN, Bao L, Bukovsk, Patterson D, Paces V, Ansorge W, Kozich V: The human cystathionine beta-synthase (CBS) gene: complete sequence, alternative splicing, and polymorphisms. Genomics. 1998 Sep 15;52(3):312-24. [PubMed Link Image]
  6. Kraus J, Packman S, Fowler B, Rosenberg LE: Purification and properties of cystathionine beta-synthase from human liver. Evidence for identical subunits. J Biol Chem. 1978 Sep 25;253(18):6523-8. [PubMed Link Image]
  7. Meier M, Janosik M, Kery V, Kraus JP, Burkhard P: Structure of human cystathionine beta-synthase: a unique pyridoxal 5'-phosphate-dependent heme protein. EMBO J. 2001 Aug 1;20(15):3910-6. [PubMed Link Image]
  8. Taoka S, Lepore BW, Kabil O, Ojha S, Ringe D, Banerjee R: Human cystathionine beta-synthase is a heme sensor protein. Evidence that the redox sensor is heme and not the vicinal cysteines in the CXXC motif seen in the crystal structure of the truncated enzyme. Biochemistry. 2002 Aug 20;41(33):10454-61. [PubMed Link Image]
  9. Kraus JP, Janosik M, Kozich V, Mandell R, Shih V, Sperandeo MP, Sebastio G, de Franchis R, Andria G, Kluijtmans LA, Blom H, Boers GH, Gordon RB, Kamoun P, Tsai MY, Kruger WD, Koch HG, Ohura T, Gaustadnes M: Cystathionine beta-synthase mutations in homocystinuria. Hum Mutat. 1999;13(5):362-75. [PubMed Link Image]
  10. Kozich V, Kraus JP: Screening for mutations by expressing patient cDNA segments in E. coli: homocystinuria due to cystathionine beta-synthase deficiency. Hum Mutat. 1992;1(2):113-23. [PubMed Link Image]
  11. Kozich V, de Franchis R, Kraus JP: Molecular defect in a patient with pyridoxine-responsive homocystinuria. Hum Mol Genet. 1993 Jun;2(6):815-6. [PubMed Link Image]
  12. Hu FL, Gu Z, Kozich V, Kraus JP, Ramesh V, Shih VE: Molecular basis of cystathionine beta-synthase deficiency in pyridoxine responsive and nonresponsive homocystinuria. Hum Mol Genet. 1993 Nov;2(11):1857-60. [PubMed Link Image]
  13. de Franchis R, Kozich V, McInnes RR, Kraus JP: Identical genotypes in siblings with different homocystinuric phenotypes: identification of three mutations in cystathionine beta-synthase using an improved bacterial expression system. Hum Mol Genet. 1994 Jul;3(7):1103-8. [PubMed Link Image]
  14. Marble M, Geraghty MT, de Franchis R, Kraus JP, Valle D: Characterization of a cystathionine beta-synthase allele with three mutations in cis in a patient with B6 nonresponsive homocystinuria. Hum Mol Genet. 1994 Oct;3(10):1883-6. [PubMed Link Image]
  15. Kraus JP: Komrower Lecture. Molecular basis of phenotype expression in homocystinuria. J Inherit Metab Dis. 1994;17(4):383-90. [PubMed Link Image]
  16. Shih VE, Fringer JM, Mandell R, Kraus JP, Berry GT, Heidenreich RA, Korson MS, Levy HL, Ramesh V: A missense mutation (I278T) in the cystathionine beta-synthase gene prevalent in pyridoxine-responsive homocystinuria and associated with mild clinical phenotype. Am J Hum Genet. 1995 Jul;57(1):34-9. [PubMed Link Image]
  17. Sebastio G, Sperandeo MP, Panico M, de Franchis R, Kraus JP, Andria G: The molecular basis of homocystinuria due to cystathionine beta-synthase deficiency in Italian families, and report of four novel mutations. Am J Hum Genet. 1995 Jun;56(6):1324-33. [PubMed Link Image]
  18. Kluijtmans LA, Blom HJ, Boers GH, van Oost BA, Trijbels FJ, van den Heuvel LP: Two novel missense mutations in the cystathionine beta-synthase gene in homocystinuric patients. Hum Genet. 1995 Aug;96(2):249-50. [PubMed Link Image]
  19. Kruger WD, Cox DR: A yeast assay for functional detection of mutations in the human cystathionine beta-synthase gene. Hum Mol Genet. 1995 Jul;4(7):1155-61. [PubMed Link Image]
  20. Sperandeo MP, Panico M, Pepe A, Candito M, de Franchis R, Kraus JP, Andria G, Sebastio G: Molecular analysis of patients affected by homocystinuria due to cystathionine beta-synthase deficiency: report of a new mutation in exon 8 and a deletion in intron 11. J Inherit Metab Dis. 1995;18(2):211-4. [PubMed Link Image]
  21. Kluijtmans LA, Boers GH, Stevens EM, Renier WO, Kraus JP, Trijbels FJ, van den Heuvel LP, Blom HJ: Defective cystathionine beta-synthase regulation by S-adenosylmethionine in a partially pyridoxine responsive homocystinuria patient. J Clin Invest. 1996 Jul 15;98(2):285-9. [PubMed Link Image]
  22. Sperandeo MP, Candito M, Sebastio G, Rolland MO, Turc-Carel C, Giudicelli H, Dellamonica P, Andria G: Homocysteine response to methionine challenge in four obligate heterozygotes for homocystinuria and relationship with cystathionine beta-synthase mutations. J Inherit Metab Dis. 1996;19(3):351-6. [PubMed Link Image]
  23. Dawson PA, Cox AJ, Emmerson BT, Dudman NP, Kraus JP, Gordon RB: Characterisation of five missense mutations in the cystathionine beta-synthase gene from three patients with B6-nonresponsive homocystinuria. Eur J Hum Genet. 1997 Jan-Feb;5(1):15-21. [PubMed Link Image]
  24. Kim CE, Gallagher PM, Guttormsen AB, Refsum H, Ueland PM, Ose L, Folling I, Whitehead AS, Tsai MY, Kruger WD: Functional modeling of vitamin responsiveness in yeast: a common pyridoxine-responsive cystathionine beta-synthase mutation in homocystinuria. Hum Mol Genet. 1997 Dec;6(13):2213-21. [PubMed Link Image]
  25. Aral B, Coude M, London J, Aupetit J, Chasse JF, Zabot MT, Chadefaux-Vekemans B, Kamoun P: Two novel mutations (K384E and L539S) in the C-terminal moiety of the cystathionine beta-synthase protein in two French pyridoxine-responsive homocystinuria patients. Hum Mutat. 1997;9(1):81-2. [PubMed Link Image]
  26. Kozich V, Janosik M, Sokolova J, Oliveriusova J, Orendac M, Kraus JP, Elleder D: Analysis of CBS alleles in Czech and Slovak patients with homocystinuria: report on three novel mutations E176K, W409X and 1223 + 37 del99. J Inherit Metab Dis. 1997 Jul;20(3):363-6. [PubMed Link Image]
  27. de Franchis R, Kraus E, Kozich V, Sebastio G, Kraus JP: Four novel mutations in the cystathionine beta-synthase gene: effect of a second linked mutation on the severity of the homocystinuric phenotype. Hum Mutat. 1999;13(6):453-7. [PubMed Link Image]
Enzyme 3 Metabolite References Not Available
Enzyme 4 [top]
Enzyme 4 ID 13068
Enzyme 4 Name cDNA FLJ76252, highly similar to Homo sapiens S-adenosylhomocysteine hydrolase
Enzyme 4 Synonyms
  1. AHCY, mRNA
  2. S-adenosylhomocysteine hydrolase, isoform CRA_a
Enzyme 4 Gene Name AHCY
Enzyme 4 Protein Sequence >cDNA FLJ76252, highly similar to Homo sapiens S-adenosylhomocysteine hydrolase 
MSDKLPYKVADIGLAAWGRKALDIAENEMPGLMRMRERYSASKPLKGARIAGCLHMTVET
AVLIETLVTLGAEVQWSSCNIFSTQDHAAAAIAKAGIPVYAWKGETDEEYLWCIEQTLYF
KDGPLNMILDDGGDLTNLIHTKYPQLLPGIRGISEETTTGVHNLYKMMANGILKVPAINV
NDSVTKSKFDNLYGCRESLIDGIKRATDVMIAGKVAVVAGYGDVGKGCAQALRGFGARVI
ITEIDPINALQAAMEGYEVTTMDEACQEGNIFVTTTGCIDIILGRHFEQMKDDAIVCNIG
HFDVEIDVKWLNENAVEKVNIKPQVDRYRLKNGRRIILLAEGRLVNLGCAMGHPSFVMSN
SFTNQVMAQIELWTHPDKYPVGVHFLPKKLDEAVAEAHLGKLNVKLTKLTEKQAQYLGMS
CDGPFKPDHYRY
Enzyme 4 Number of Residues 432
Enzyme 4 Molecular Weight 47717
Enzyme 4 Theoretical pI 6.29
Enzyme 4 GO Classification Not Available
Enzyme 4 General Function Coenzyme transport and metabolism
Enzyme 4 Specific Function Not Available
Enzyme 4 Pathways Not Available
Enzyme 4 Reactions Not Available
Enzyme 4 Pfam Domain Function Not Available
Enzyme 4 Signals
  • None
Enzyme 4 Transmembrane Regions
  • None
Enzyme 4 Essentiality Not Available
Enzyme 4 GenBank ID Protein 158261867 Link Image
Enzyme 4 UniProtKB/Swiss-Prot ID A8K307 Link Image
Enzyme 4 UniProtKB/Swiss-Prot Entry Name A8K307_HUMAN Link Image
Enzyme 4 PDB ID 1LI4 Link Image
Enzyme 4 PDB File Show
Enzyme 4 3D Structure
Enzyme 4 Cellular Location Not Available
Enzyme 4 Gene Sequence Not Available
Enzyme 4 GenBank Gene ID AK290422 Link Image
Enzyme 4 GeneCard ID A8K307 Link Image
Enzyme 4 GenAtlas ID Not Available
Enzyme 4 HGNC ID Not Available
Enzyme 4 Chromosome Location Not Available
Enzyme 4 Locus Not Available
Enzyme 4 SNPs SNPJam Report Link Image
Enzyme 4 General References Not Available
Enzyme 4 Metabolite References Not Available
Enzyme 5 [top]
Enzyme 5 ID 16487
Enzyme 5 Name cDNA, FLJ94281, Homo sapiens cystathionine-beta-synthase (CBS), mRNA (Cystathionine-beta-synthase, isoform CRA_b)
Enzyme 5 Synonyms Not Available
Enzyme 5 Gene Name CBS
Enzyme 5 Protein Sequence >cDNA, FLJ94281, Homo sapiens cystathionine-beta-synthase (CBS), mRNA (Cystathionine-beta-synthase, isoform CRA_b) 
MPSETPQAEVGPTGCPHRSGPHSAKGSLEKGSPEDKEAKEPLWIRPDAPSRCTWQLGRPA
SESPHHHTAPAKSPKILPDILKKIGDTPMVRINKIGKKFGLKCELLAKCEFFNAGGSVKD
RISLRMIEDAERDGTLKPGDTIIEPTSGNTGIGLALAAAVRGYRCIIVMPEKMSSEKVDV
LRALGAEIVRTPTNARFDSPESHVGVAWRLKNEIPNSHILDQYRNASNPLAHYDTTADEI
LQQCDGKLDMLVASVGTGGTITGIARKLKEKCPGCRIIGVDPEGSILAEPEELNQTEQTT
YEVEGIGYDFIPTVLDRTVVDKWFKSNDEEAFTFARMLIAQEGLLCGGSAGSTVAVAVKA
AQELQEGQRCVVILPDSVRNYMTKFLSDRWMLQKGFLKEEDLTEKKPWWWHLRVQELGLS
APLTVLPTITCGHTIEILREKGFDQAPVVDEAGVILGMVTLGNMLSSLLAGKVQPSDQVG
KVIYKQFKQIRLTDTLGRLSHILEMDHFALVVHEQIQYHSTGKSSQRQMVFGVVTAIDLL
NFVAAQERDQK
Enzyme 5 Number of Residues 551
Enzyme 5 Molecular Weight 60587
Enzyme 5 Theoretical pI 6.63
Enzyme 5 GO Classification
Function
  • carbon-oxygen lyase activity
  • catalytic activity
  • cystathionine beta-synthase activity
  • hydro-lyase activity
  • lyase activity
Process
  • L-serine metabolism
  • amino acid and derivative metabolism
  • amino acid metabolism
  • cellular metabolism
  • cysteine biosynthesis
  • cysteine biosynthesis from serine
  • cysteine biosynthesis via cystathione
  • metabolism
  • physiological process
  • serine family amino acid metabolism
  • sulfur amino acid biosynthesis
  • sulfur amino acid metabolism
Component
  • cell
  • cytoplasm
  • intracellular
Enzyme 5 General Function Amino acid transport and metabolism
Enzyme 5 Specific Function Not Available
Enzyme 5 Pathways Not Available
Enzyme 5 Reactions Not Available
Enzyme 5 Pfam Domain Function
Enzyme 5 Signals
  • None
Enzyme 5 Transmembrane Regions
  • None
Enzyme 5 Essentiality Not Available
Enzyme 5 GenBank ID Protein Not Available
Enzyme 5 UniProtKB/Swiss-Prot ID B2R993 Link Image
Enzyme 5 UniProtKB/Swiss-Prot Entry Name B2R993_HUMAN Link Image
Enzyme 5 PDB ID 1JBQ Link Image
Enzyme 5 PDB File Show
Enzyme 5 3D Structure
Enzyme 5 Cellular Location Not Available
Enzyme 5 Gene Sequence Not Available
Enzyme 5 GenBank Gene ID AK313691 Link Image
Enzyme 5 GeneCard ID B2R993 Link Image
Enzyme 5 GenAtlas ID Not Available
Enzyme 5 HGNC ID Not Available
Enzyme 5 Chromosome Location 21
Enzyme 5 Locus 21q22.3
Enzyme 5 SNPs SNPJam Report Link Image
Enzyme 5 General References Not Available
Enzyme 5 Metabolite References Not Available