Amino acid sequence search

Amino acid Sequence:

No. of results:

Recommended name:

(of enzyme)

EC Number:

1st Accession Code:

(UniProt)

Organism:

Number of amino acids:

Molecular weight [Da]:

Transmembrane helices:

N-terminus: inside outside

Source: SwissProt TREMBL

Distribution of hits in the Enzyme Classification (EC) System

Results 1 - 10 of 3050

1.3.1.22

3-oxo-5alpha-steroid 4-dehydrogenase (NADP+)

Bos taurus

A5PJS2

4 transm. helices

257 amino acids

29186

Swiss-Prot

1.3.1.22

3-oxo-5alpha-steroid 4-dehydrogenase (NADP+)

Sus scrofa

O18765

6 transm. helices

254 amino acids

28536

Swiss-Prot

1.3.1.22

3-oxo-5alpha-steroid 4-dehydrogenase (NADP+)

Homo sapiens

P18405

4 transm. helices

259 amino acids

29459

Swiss-Prot

1.3.1.22

3-oxo-5alpha-steroid 4-dehydrogenase (NADP+)

Rattus norvegicus

P24008

3 transm. helices

259 amino acids

29780

Swiss-Prot

1.3.1.22

3-oxo-5alpha-steroid 4-dehydrogenase (NADP+)

Rattus norvegicus

P31214

5 transm. helices

254 amino acids

28772

Swiss-Prot

1.3.1.22

3-oxo-5alpha-steroid 4-dehydrogenase (NADP+)

Homo sapiens

P31213

6 transm. helices

254 amino acids

28407

Swiss-Prot

1.3.1.22

3-oxo-5alpha-steroid 4-dehydrogenase (NADP+)

Macaca fascicularis

Q28892

6 transm. helices

254 amino acids

28504

Swiss-Prot

1.3.1.22

3-oxo-5alpha-steroid 4-dehydrogenase (NADP+)

Macaca fascicularis

Q28891

3 transm. helices

263 amino acids

30018

Swiss-Prot

1.3.1.22

3-oxo-5alpha-steroid 4-dehydrogenase (NADP+)

Gossypium hirsutum

Q2QDF6

6 transm. helices

258 amino acids

30421

Swiss-Prot

1.3.1.22

3-oxo-5alpha-steroid 4-dehydrogenase (NADP+)

Arabidopsis thaliana

Q38944

6 transm. helices

262 amino acids

30635

Swiss-Prot

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Release 2026.1 (March 2026)