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Family 31 carbohydrate binding protein This family of proteins represents the family 31 carbohydrate-binding module of beta-1,2-xylanase. This protein is from Alcaligenes sp. strain XY-234. The AlcCBM31 module makes a beta-sandwich structure with an immunoglobulin fold and contains two intra-molecular disulfide bonds. AlcCBM31 shows affinity with only beta-1,3-xylan.
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