Hmdb loader
Identification
HMDB Protein ID HMDBP00800
Secondary Accession Numbers
  • 6080
Name Transketolase-like protein 1
Synonyms
  1. TK 2
  2. Transketolase 2
  3. Transketolase-related protein
Gene Name TKTL1
Protein Type Unknown
Biological Properties
General Function Involved in catalytic activity
Specific Function Catalyzes the transfer of a two-carbon ketol group from a ketose donor to an aldose acceptor, via a covalent intermediate with the cofactor thiamine pyrophosphate (By similarity).
Pathways
  • Pentose phosphate pathway
Reactions
D-Sedoheptulose 7-phosphate + Glyceraldehyde 3-phosphate → D-Ribose 5-phosphate + Xylulose 5-phosphate details
Beta-D-Fructose 6-phosphate + Glyceraldehyde 3-phosphate → D-Erythrose 4-phosphate + Xylulose 5-phosphate details
D-Sedoheptulose 7-phosphate + Glyceraldehyde 3-phosphate → D-Ribose 5-phosphate + Xylulose 5-phosphate details
Beta-D-Fructose 6-phosphate + Glyceraldehyde 3-phosphate → D-Erythrose 4-phosphate + Xylulose 5-phosphate details
Aminofructose 6-phosphate + D-Ribose 5-phosphate → Iminoerythrose 4-phosphate + D-Sedoheptulose 7-phosphate details
GO Classification
Biological Process
thiamine metabolic process
glucose catabolic process
Cellular Component
cytoplasm
nucleus
Function
catalytic activity
Molecular Function
metal ion binding
transketolase activity
Process
metabolic process
Cellular Location
  1. Nucleus
  2. Cytoplasm
Gene Properties
Chromosome Location X
Locus Xq28
SNPs TKTL1
Gene Sequence
>1791 bp
ATGGCGGATGCTGAGGCGAGGGCTGAGTTCCCGGAGGAGGCCAGACCTGACAGGGGCACC
TTGCAGGTGTTGCAAGATATGGCCAGCCGCTTGCGAATCCATTCCATCAGGGCCACATGC
TCCACGAGCTCCGGCCACCCTACATCATGTAGCAGTTCTTCTGAGATCATGTCTGTGCTG
TTCTTCTACATCATGAGGTACAAGCAGTCAGATCCAGAGAATCCGGACAACGACCGATTT
GTCCTCGCAAAGAGACTGTCGTTTGTGGATGTGGCAACAGGATGGCTCGGACAAGGACTG
GGAGTTGCATGTGGAATGGCATATACTGGCAAGTACTTCGACAGGGCCAGCTACCGGGTG
TTCTGCCTCATGAGTGATGGCGAGTCCTCAGAAGGCTCTGTCTGGGAGGCAATGGCCTTT
GCTTCCTACTACAGTCTGGACAATCTTGTGGCAATCTTTGATGTGAACCGCCTGGGACAC
AGTGGTGCATTGCCCGCCGAGCACTGCATAAACATCTATCAGAGGCGCTGCGAAGCCTTT
GGGTGGAACACTTATGTGGTGGACGGCCGGGACGTGGAGGCACTGTGCCAGGTATTCTGG
CAGGCTTCTCAGGTGAAGCACAAGCCCACTGCTGTGGTGGCCAAGACCTTCAAGGGCCGG
GGCACCCCAAGTATTGAGGATGCAGAAAGTTGGCATGCAAAGCCAATGCCGAGAGAAAGA
GCAGATGCCATTATCAAATTAATTGAGAGCCAGATACAGACCAGCAGGAATCTTGACCCA
CAGCCCCCCATTGAGGACTCACCTGAAGTCAACATCACAGATGTAAGGATGACCTCTCCA
CCTGATTACAGAGTTGGTGACAAGATAGCTACTCGGAAAGCATGCGGTCTGGCTCTGGCT
AAGCTGGGCTACGCGAACAACAGAGTCGTTGTGCTGGATGGTGACACCAGGTACTCTACT
TTCTCTGAGATATTCAACAAGGAGTACCCTGAGCGCTTCATCGAGTGCTTTATGGCTGAA
CAAAACATGGTGAGCGTGGCTCTGGGCTGTGCCTCCCGTGGACGGACCATTGCTTTTGCT
AGCACCTTTGCTGCCTTTCTGACTCGAGCATTTGATCACATCCGGATAGGAGGCCTCGCT
GAGAGCAACATCAACATTATTGGTTCCCACTGTGGGGTATCTGTTGGTGACGATGGTGCT
TCCCAGATGGCCCTGGAGGATATAGCCATGTTCCGAACCATTCCCAAGTGCACGATCTTC
TACCCAACTGATGCCGTCTCCACGGAGCATGCTGTTGCTCTGGCAGCCAATGCCAAGGGG
ATGTGCTTCATTCGGACCACCCGACCAGAAACTATGGTTATTTACACCCCACAAGAACGC
TTTGAGATCGGACAGGCCAAGGTCCTCCGCCACTGTGTCAGTGACAAGGTCACAGTTATT
GGAGCTGGAATTACTGTGTATGAAGCCTTAGCAGCTGCTGATGAGCTTTCGAAACAAGAT
ATTTTTATCCGTGTCATCGACCTGTTTACCATTAAACCTCTGGATGTCGCCACCATCGTC
TCCAGTGCAAAAGCCACAGAGGGCCGGATCATTACAGTGGAGGATCACTACCCGCAAGGT
GGCATCGGGGAAGCTGTCTGCGCAGCCGTCTCCATGGATCCTGACATTCAGGTTCATTCG
CTGGCAGTGTCGGGAGTGCCCCAGAGTGGGAAGTCCGAGGAATTGCTGGATATGTATGGA
ATTAGTGCCAGACATATCATAGTGGCCGTGAAATGCATGTTGCTGAACTAA
Protein Properties
Number of Residues 596
Molecular Weight 59302.195
Theoretical pI 5.866
Pfam Domain Function
Signals Not Available
Transmembrane Regions Not Available
Protein Sequence
>Transketolase-like protein 1
MADAEARAEFPEEARPDRGTLQVLQDMASRLRIHSIRATCSTSSGHPTSCSSSSEIMSVL
FFYIMRYKQSDPENPDNDRFVLAKRLSFVDVATGWLGQGLGVACGMAYTGKYFDRASYRV
FCLMSDGESSEGSVWEAMAFASYYSLDNLVAIFDVNRLGHSGALPAEHCINIYQRRCEAF
GWNTYVVDGRDVEALCQVFWQASQVKHKPTAVVAKTFKGRGTPSIEDAESWHAKPMPRER
ADAIIKLIESQIQTSRNLDPQPPIEDSPEVNITDVRMTSPPDYRVGDKIATRKACGLALA
KLGYANNRVVVLDGDTRYSTFSEIFNKEYPERFIECFMAEQNMVSVALGCASRGRTIAFA
STFAAFLTRAFDHIRIGGLAESNINIIGSHCGVSVGDDGASQMALEDIAMFRTIPKCTIF
YPTDAVSTEHAVALAANAKGMCFIRTTRPETMVIYTPQERFEIGQAKVLRHCVSDKVTVI
GAGITVYEALAAADELSKQDIFIRVIDLFTIKPLDVATIVSSAKATEGRIITVEDHYPQG
GIGEAVCAAVSMDPDIQVHSLAVSGVPQSGKSEELLDMYGISARHIIVAVKCMLLN
GenBank ID Protein 158257954
UniProtKB/Swiss-Prot ID P51854
UniProtKB/Swiss-Prot Entry Name TKTL1_HUMAN
PDB IDs Not Available
GenBank Gene ID AK292261
GeneCard ID TKTL1
GenAtlas ID TKTL1
HGNC ID HGNC:11835
References
General References
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  4. Coy JF, Dubel S, Kioschis P, Thomas K, Micklem G, Delius H, Poustka A: Molecular cloning of tissue-specific transcripts of a transketolase-related gene: implications for the evolution of new vertebrate genes. Genomics. 1996 Mar 15;32(3):309-16. [PubMed:8838793 ]
  5. Coy JF, Dressler D, Wilde J, Schubert P: Mutations in the transketolase-like gene TKTL1: clinical implications for neurodegenerative diseases, diabetes and cancer. Clin Lab. 2005;51(5-6):257-73. [PubMed:15991799 ]
  6. Langbein S, Zerilli M, Zur Hausen A, Staiger W, Rensch-Boschert K, Lukan N, Popa J, Ternullo MP, Steidler A, Weiss C, Grobholz R, Willeke F, Alken P, Stassi G, Schubert P, Coy JF: Expression of transketolase TKTL1 predicts colon and urothelial cancer patient survival: Warburg effect reinterpreted. Br J Cancer. 2006 Feb 27;94(4):578-85. [PubMed:16465194 ]
  7. Staiger WI, Coy JF, Grobholz R, Hofheinz RD, Lukan N, Post S, Schwarzbach MH, Willeke F: Expression of the mutated transketolase TKTL1, a molecular marker in gastric cancer. Oncol Rep. 2006 Oct;16(4):657-61. [PubMed:16969476 ]