OY-TES-1 Protein Overview: Sequence, Structure, Function and Protein Interaction

OY-TES-1 Protein Overview

OY-TES-1 reagents

By searching an EST database for sequences similar to mouse Pem (see 300446), followed by PCR and 5-prime RACE of a human testis cDNA library, Ono et al. (2001) cloned ACRBP, which they designated OY-TES-1. The deduced 543-amino acid protein contains an N-terminal glutamic acid- and glutamine-rich domain and a central acidic amino acid region. It has 20 cysteine residues that are completely conserved between several mammalian species. The mature protein is cleaved between arg273 and glu274. ACRBP shares 77.2%, 81.9%, and 75.2% amino acid identity with its guinea pig, pig, and mouse homologs, respectively. RT-PCR of several human tissues detected ACRBP expression only in testis. ACRBP was also expressed in a subset of tumors of varied tissue origin. A serologic survey found antibodies against ACRBP in 25 of 362 cancer patients. No ACRBP reactivity was found in 20 normal individuals.

OY-TES-1 protein name

Recommended name
Acrosin-binding protein
cancer / testis antigen 23, CT23, OY-TES-1, proacrosin binding protein sp32, SP32

OY-TES-1 Protein Molecular Weight & PI

The parameters have been computed for the following feature

FT CHAIN 26-543 Acrosin-binding protein.

Molecular weight (Da)


Theoretical pI


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