NOVELTY - A cellobiohydrolase variant (A1), comprising an alteration at, at least one position corresponding to positions 197, 198, 199, and 200 of the mature polypeptide, and having cellobiohydrolase activity, is new.    USE - As cellobiohydrolase variant for making transgenic plant; for degrading a cellulosic material; for fermenting a cellulosic material for producing fermentation product (claimed); to hydrolyze the cellulosic material to fermentable sugars, e.g. glucose, cellobiose, and pentose monomers; to saccharify the cellulosic material to fermentable sugars and to convert the fermentable sugars to many useful fermentation products, e.g. fuel (ethanol, n-butanol, isobutanol, biodiesel, jet fuel) and/or platform chemicals (e.g. acids, alcohols, ketones, gases, oils).    ADVANTAGE - The variant has an increased specific performance relative to the parent cellobiohydrolase i.e. improved conversion of cellulosic material to a product, as compared to the same level of conversion by the parent cellobiohydrolase (at least 1.01-fold, preferably at least 50-fold higher than the specific performance of the parent). The cellobiohydrolase variant has improved properties to increase the efficiency of the saccharification of lignocellulosic feedstocks. The plant or plant part containing the variant improves the quality of a food or feed, e.g. improves nutritional value, palatability, and rheological properties, or destroys an antinutritive factor.    DETAILED DESCRIPTION - A cellobiohydrolase variant (A1), comprising an alteration at, at least one position corresponding to positions 197, 198, 199, and 200 of the mature polypeptide of (SEQ ID NO: 2), as available on WIPO website, is new, where the alteration at the position corresponding to positions 197, 198, and 200 is a substitution and the alteration at the position corresponding to position 199 is a deletion, the variant has cellobiohydrolase activity, and the variant has at least 60% (preferably at least 95%, especially at least 99%, but less than 100%), sequence identity to the mature polypeptide of a parent cellobiohydrolase. The sequences not defined here may be found at ftp://ftp.wipo.net/pub/published pct sequences/publication. INDEPENDENT CLAIMS are included for the following:    (1) an isolated polynucleotide (A2) encoding the variant (A1);    (2) production of the cellobiohydrolase variant (A1);    (3) a transgenic plant, plant part or plant cell transformed with the polynucleotide (A2);    (4) a composition, whole broth formulation, or cell culture composition comprising the variant (A1);    (5) degrading a cellulosic material involving treating the cellulosic material with an enzyme composition in the presence of the variant (A1);    (6) producing a fermentation product involving (a) saccharifying a cellulosic material with an enzyme composition in the presence of the variant (A1), (b) fermenting the saccharified cellulosic material with at least one fermenting microorganism to produce the fermentation product; and (c) recovering the fermentation product from the fermentation; and    (7) fermenting a cellulosic material involving fermenting the cellulosic material with at least one fermenting microorganism, where the cellulosic material is saccharified with an enzyme composition in the presence of the variant (A1).